Donaldson Company, Inc.

United States of America

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B01D 46/00 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours 126
B01D 46/52 - Particle separators, e.g. dust precipitators, using filters embodying folded material 96
B01D 46/24 - Particle separators, e.g. dust precipitators, using rigid hollow filter bodies 83
B01D 39/16 - Other self-supporting filtering material of organic material, e.g. synthetic fibres 40
B01D 29/21 - Supported filter elements arranged for inward flow filtration with corrugated, folded or wound sheets 25
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1.

AIR FILTER ASSEMBLY AND FILTER CARTRIDGES FOR REMOVING PARTICULATE AND CHEMICAL CONTAMINATES FROM AIR

      
Application Number US2025031714
Publication Number 2025/250981
Status In Force
Filing Date 2025-05-30
Publication Date 2025-12-04
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Catoor, Bart
  • Formenti, Susanna
  • Decoster, Kristof
  • De Rudder, Korneel
  • Krystufek, Miloslav
  • Andraghetti, Martina
  • Prusila, Anna
  • Van Eylen, Kenny
  • Sekgetho, Thuto
  • Verstraete, Mathijs
  • Yang, Kaiyu

Abstract

An air cleaner assembly may include: (a) an air cleaner housing comprising an air inlet end, an opposite air outlet end, and an air cleaner interior located between the air inlet end and the opposite air outlet end, wherein the air cleaner housing further comprises: (i) an access opening for accessing the air cleaner interior; and (ii) a housing radial seal surface located generally facing toward an air cleaner axis extending from the air inlet end to the opposite air outlet end; (b) a chemical filter cartridge configured to pass through the air cleaner housing access opening, the chemical filter cartridge comprising: a chemical filter housing, a chemical filter media, a seal member having a radially directed seal surface and configured to engage the housing radial seal surface when operably installed in the air cleaner interior, and a particulate filter housing axial seal surface; (c) a particulate filter cartridge configured to pass through the air cleaner housing access opening, the particulate filter cartridge comprising: a particulate filter housing, a particulate filter media, and a seal member having an axially directed seal surface and configured to engage the particulate filter housing axial seal surface on the chemical filter cartridge when the particulate filter cartridge is operably installed in the air cleaner interior. A combination of filter cartridges is provided.

IPC Classes  ?

  • B01D 46/00 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
  • B01D 46/10 - Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
  • B01D 46/64 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series arranged concentrically or coaxially

2.

FILTER ELEMENTS AND ASSEMBLIES

      
Application Number US2025029843
Publication Number 2025/240912
Status In Force
Filing Date 2025-05-16
Publication Date 2025-11-20
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Campbell, Steven, K.
  • Van De Poel, Günther
  • Catoor, Bart

Abstract

A filter cartridge can include a media pack including media extending between a first end and a second end along a longitudinal axis; an end cap secured to the media and including: a seal member presenting a radially inward or outward facing seal surface, the seal member being formed from a first material; and a support structure including a base part and a plurality of spaced apart, radially flexible extensions, the support structure being formed from a second material harder and/or stiffer than the first material. At least a portion of the base part is covered by and/or embedded within the first material, and the plurality of flexible extensions includes an exposed portion that is uncovered by and/or embedded within the first material and defines an axial end of the filter cartridge and is coincident with a radial innermost portion of the end cap. The seal surface and the exposed portion of the flexible extensions are axially aligned such that a plane orthogonal to the longitudinal axis can pass through the seal member and through the exposed portion of the plurality of flexible extensions.

IPC Classes  ?

  • B01D 46/00 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
  • B01D 46/24 - Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
  • B01D 46/52 - Particle separators, e.g. dust precipitators, using filters embodying folded material

3.

FILTER ELEMENTS AND ASSEMBLIES

      
Application Number US2025029824
Publication Number 2025/240899
Status In Force
Filing Date 2025-05-16
Publication Date 2025-11-20
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Campbell, Steve K.
  • Catoor, Bart
  • Gammelgaard, Tyler W.
  • Halemeier, Jeff T.
  • Wilson, Tyler D. M.
  • Zeller, Peter F.
  • Van De Poel, Günther

Abstract

An air filter cartridge for use within a housing assembly of an air cleaner can include a media pack including filter media extending from a first end to a second end; and a first end cap arranged at the first end of the media pack, the first end cap presenting an inner radial side defining a seal surface having a generally polygonal shape formed by a plurality of flat sides and adjoining corner portions, the first end cap having a first cross-sectional thickness extending through the flat sides that is greater than a second cross-sectional thickness extending through the corner portions.

IPC Classes  ?

  • B01D 46/00 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
  • B01D 46/24 - Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
  • B01D 46/52 - Particle separators, e.g. dust precipitators, using filters embodying folded material

4.

FILTER ELEMENTS AND ASSEMBLIES

      
Application Number US2025029836
Publication Number 2025/240907
Status In Force
Filing Date 2025-05-16
Publication Date 2025-11-20
Owner DONALDSON COMPANY, INC. (USA)
Inventor Van De Poel, Günther

Abstract

A filter cartridge can include a media pack including media extending between a first end and a second end along a longitudinal axis; an end cap including: a seal member presenting a radially inward or outward facing seal surface, the seal member being formed from a first material and being secured to the media pack; and a support structure including a base part and a plurality of spaced apart, radially flexible extensions at least partially embedded within the first material, the support structure being formed from a second material harder than the first material, wherein at least a portion of the base part is covered by the first material, the plurality of flexible extensions including an exposed portion that is uncovered by the first material; wherein the seal surface and the exposed portion of the flexible extensions are axially aligned such that a plane orthogonal to the longitudinal axis can pass through the seal member and through the exposed portion of the plurality of flexible extensions.

IPC Classes  ?

  • B01D 46/00 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
  • B01D 46/24 - Particle separators, e.g. dust precipitators, using rigid hollow filter bodies

5.

VOLUMETRIC MEDIA AND USES THEREOF

      
Application Number US2025016605
Publication Number 2025/179024
Status In Force
Filing Date 2025-02-20
Publication Date 2025-08-28
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Lawson, Shane
  • Conklin, Christopher P.
  • Druecke, Benjamin C.
  • Mottet, Alexander E.
  • Decoster, Kristof
  • Elsayed, Yehya A.
  • Maharia, Abhishek
  • Singh, Rohit
  • Ewaldz, Elena T.
  • Coustenoble, Laurent

Abstract

A volumetric media having an upstream end and a downstream end. The volumetric media includes one or more spacers and a packing material around the spacers. The packing material includes a foam. The packing material may include fine fibers disposed on at least a portion of the foam.

IPC Classes  ?

  • B01D 53/04 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents

6.

AERODYNAMIC SPACERS

      
Application Number US2025016611
Publication Number 2025/179028
Status In Force
Filing Date 2025-02-20
Publication Date 2025-08-28
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Lawson, Shane
  • Conklin, Christopher P.
  • Druecke, Benjamin C.
  • Mottet, Alexander E.
  • Decoster, Kristof
  • Elsayed, Yehya A.
  • Maharia, Abhishek
  • Singh, Rohit
  • Ewaldz, Elena T.
  • Coustenoble, Laurent

Abstract

A spacer array including a plurality of spacers. Each spacer defines a longitudinal axis and includes a main body, a leading pin, and a trailing pin. The main body has a main body cross-sectional dimension. The leading pin extends from the main body and is upstream of the main body. The leading pin has a leading pin cross-sectional dimension. The trailing pin extends from the main body and is downstream of the main body. The trailing pin has a trailing pin cross-sectional dimension. The main body cross-sectional dimension is greater than the leading pin cross-sectional dimension and the trailing pin cross-sectional dimension.

IPC Classes  ?

  • B01J 19/32 - Packing elements in the form of grids or built-up elements for forming a unit or module inside the apparatus for mass or heat transfer
  • B01J 20/30 - Processes for preparing, regenerating or reactivating
  • B01J 19/30 - Loose or shaped packing elements, e.g. Raschig rings or Berl saddles, for pouring into the apparatus for mass or heat transfer

7.

FILTER ELEMENT AND IN-TANK FILTER ASSEMBLY AND METHODS

      
Application Number US2025012523
Publication Number 2025/160122
Status In Force
Filing Date 2025-01-22
Publication Date 2025-07-31
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Cantoni, Mauro
  • Trevisani, Christian

Abstract

An in-tank filter assembly includes a removable and replaceable filter element for a hydraulic tank. The filter element has a filter construction and a bypass construction positioned radially outside of the outer perimeter of the filter construction. An end cap arrangement has a filter opening in communication with an open filter interior volume of the filter construction and a bypass opening in communication with an open tube interior volume of the bypass flow tube. A filter seal member is secured to the end cap arrangement and encloses both the filter construction and the bypass construction.

IPC Classes  ?

  • B01D 29/23 - Supported filter elements arranged for outward flow filtration
  • B01D 29/52 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in parallel connection
  • B01D 35/027 - Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks rigidly mounted in or on tanks or reservoirs
  • B01D 35/147 - Bypass or safety valves

8.

VENT ASSEMBLY WITH ALTERNATING MEDIA SECTIONS

      
Application Number US2025010786
Publication Number 2025/151543
Status In Force
Filing Date 2025-01-08
Publication Date 2025-07-17
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Tronnes, Gregory S.
  • Elsayed, Yehya A.
  • Kapoor, Vijay K.
  • Andvik, Marc J.

Abstract

Some embodiments of the present technology relate to a vent assembly. The vent assembly has a vent housing having a first end and a second end. The vent housing defines a mounting structure and an airflow pathway extending from the mounting structure to the environment external to the vent housing. A plurality of sections of filtration media are arranged in a series along the airflow pathway. The plurality of sections are disposed across the airflow pathway. The plurality of sections of filtration media includes efficiency sections and spacer sections alternating with the efficiency sections within the series. Each spacer section has a flow resistivity up to 80% of a flow resistivity of each efficiency section.

IPC Classes  ?

  • B01D 46/00 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
  • B01D 46/12 - Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces in multiple arrangements
  • B01D 46/62 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
  • B60H 3/06 - Filtering
  • F16H 57/027 - GearboxesMounting gearing therein characterised by means for venting gearboxes, e.g. air breathers

9.

POROUS MEMBRANES AND METHODS OF MAKING AND USING THEREOF

      
Application Number US2025010905
Publication Number 2025/151609
Status In Force
Filing Date 2025-01-09
Publication Date 2025-07-17
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Bastin, Maarten
  • Elleithy, Mohmed
  • Sambaer, Wannes

Abstract

Polymeric porous membranes, filter containing, and.methods of making the polymeric membranes the same are disclosed. The polymeric porous membrane has a first major membrane surface and a second major membrane surface opposite of the first major membrane surface, and a first layer proximate the first major membrane surface, tire first layer including a first plurality of pores having a first average pore size. The membrane includes a second layer comprising a second plurality of pores having a second pore size. In some cases, the membrane includes a third layer comprising a third plurality of pores having a third pore size.

IPC Classes  ?

  • B01D 67/00 - Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
  • B01D 69/02 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or propertiesManufacturing processes specially adapted therefor characterised by their properties
  • B01D 71/34 - Polyvinylidene fluoride
  • B01D 71/68 - PolysulfonesPolyethersulfones

10.

SYSTEM AND METHOD FOR CULTURED CELL MEAT PRODUCTION

      
Application Number US2024058841
Publication Number 2025/122851
Status In Force
Filing Date 2024-12-06
Publication Date 2025-06-12
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Hauser, Bradly G.
  • Moravec, Davis B.
  • Nelson, Jacob A.
  • Wansapura, Poorna T.

Abstract

A system for processing growth medium and a method for processing growth medium are disclosed. The system includes a vessel, a first separation device constructed to receive fluid flow from the vessel, a second separation device constmcted to receive the liquid from the first separation device, and a third separation device constructed to receive fluid flow from the permeate side of the second separation device and to separate one or more small molecules or ions from the fluid flow. The method includes culturing cells in a mixture of growth medium and cultured cells; separating a portion of the mixture into cultured cells and spent medium in a first separation device; filtering the spent medium in a second separation device having a molecular weight cut-off of 1 to 20 kDa; and selectively separating small molecule waste products from the permeate in a third separation device, forming cleaned medium.

IPC Classes  ?

11.

PTFE AND ACTIVE PARTICLE COMPOSITIONS

      
Application Number US2024055962
Publication Number 2025/106700
Status In Force
Filing Date 2024-11-14
Publication Date 2025-05-22
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Lawson, Shane
  • Ewaldz, Elena T.
  • Reuter, Andrew J.
  • Elsayed, Yehya A.
  • Jaye, Joe A.
  • Schmitz, Andrew J.
  • Yoder, Mikayla A.

Abstract

Tapes, expanded tapes, and methods of making the same. The tapes and expanded tapes include long-strand PTFE fibrils, short-strand PTFE fibrils, and an oriented network. The oriented network includes nodes. The nodes include active particles and short-strand PTFE fibrils distributed among the active particles.

IPC Classes  ?

  • B01J 20/18 - Synthetic zeolitic molecular sieves
  • B01D 39/16 - Other self-supporting filtering material of organic material, e.g. synthetic fibres
  • B01J 20/20 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbonSolid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising carbon obtained by carbonising processes
  • B01J 20/22 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising organic material
  • B01J 20/26 - Synthetic macromolecular compounds
  • B01J 20/28 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof characterised by their form or physical properties
  • B01J 20/30 - Processes for preparing, regenerating or reactivating
  • B01J 20/32 - Impregnating or coating

12.

EXPANDED PTFE COMPOSITIONS AND METHODS OF FORMING

      
Application Number US2024055975
Publication Number 2025/106709
Status In Force
Filing Date 2024-11-14
Publication Date 2025-05-22
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Lawson, Shane
  • Ewaldz, Elena T.
  • Reuter, Andrew J.
  • Elsayed, Yehya A.
  • Jaye, Joe A.
  • Schmitz, Andrew J.
  • Yoder, Mikayla A.

Abstract

Tapes, expanded tapes, and methods of making the same. The tapes and expanded tapes include long-strand PTFE fibrils, short-strand PTFE fibrils, and an oriented network. The oriented network includes nodes. The nodes include short-strand PTFE fibrils.

IPC Classes  ?

  • B01J 20/06 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group
  • B01D 39/16 - Other self-supporting filtering material of organic material, e.g. synthetic fibres
  • B01J 20/18 - Synthetic zeolitic molecular sieves
  • B01J 20/20 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbonSolid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising carbon obtained by carbonising processes
  • B01J 20/22 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising organic material
  • B01J 20/26 - Synthetic macromolecular compounds
  • B01J 20/28 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof characterised by their form or physical properties
  • B01J 20/30 - Processes for preparing, regenerating or reactivating
  • B01J 20/32 - Impregnating or coating

13.

POROUS NON-WOVEN PTFE COMPOSITIONS AND METHODS OF FORMING

      
Application Number US2024055981
Publication Number 2025/106714
Status In Force
Filing Date 2024-11-14
Publication Date 2025-05-22
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Lawson, Shane
  • Ewaldz, Elena T.
  • Reuter, Andrew J.
  • Elsayed, Yehya A.

Abstract

Tapes, expanded tapes, and methods of making the same. The tapes and expanded tapes include long-strand PTFE fibrils, short-strand PTFE fibrils, and an oriented network. The oriented network includes nodes. The nodes include short-strand PTFE fibrils. Tapes may include a plurality of through pores. Expanded tapes may include a plurality of through pores.

IPC Classes  ?

  • B01J 20/06 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group
  • B01D 39/16 - Other self-supporting filtering material of organic material, e.g. synthetic fibres
  • B01J 20/18 - Synthetic zeolitic molecular sieves
  • B01J 20/20 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbonSolid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising carbon obtained by carbonising processes
  • B01J 20/22 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising organic material
  • B01J 20/28 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof characterised by their form or physical properties
  • B01J 20/30 - Processes for preparing, regenerating or reactivating
  • B01J 20/32 - Impregnating or coating
  • B01J 20/26 - Synthetic macromolecular compounds

14.

FILTER ELEMENTS AND ASSEMBLIES

      
Application Number US2024052028
Publication Number 2025/085786
Status In Force
Filing Date 2024-10-18
Publication Date 2025-04-24
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Catoor, Bart
  • Verstraete, Mathijs

Abstract

A filter element including a media pack and a seal, the seal being directly or indirectly connected to the media pack in a sealing manner, the filter element comprising a longitudinal axis, wherein the seal extends along a closed loop path around the longitudinal axis; wherein the seal defines a predetermined sealing direction with respect to the longitudinal axis along the closed loop path; wherein the predetermined sealing direction is not constant along the loop path; wherein the seal comprises a first seal portion along the loop path wherein the predetermined sealing direction is generally outward and a second seal portion along the loop path wherein the predetermined sealing direction is generally inward; and wherein the predetermined sealing direction of the seal along the closed loop path remains parallel to a single plane perpendicular to the longitudinal axis; and associated filter assembly.

IPC Classes  ?

  • B01D 46/00 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours

15.

COMPACT EXHAUST TREATMENT DEVICE

      
Application Number US2024050495
Publication Number 2025/080659
Status In Force
Filing Date 2024-10-09
Publication Date 2025-04-17
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Sridharan, Naveen
  • Pietrzyk, Mariusz
  • Silva, Francisco
  • Follon, Bavo
  • Kumar, Gopal
  • Gandigudi, Niranjan
  • Maddineni, Ajay K.
  • Pandey, Rangesh
  • S, Ashish

Abstract

An exhaust treatment device includes an exhaust treatment and mixing assembly. The exhaust treatment and mixing assembly includes a mixing passage defined by an inner conduit that extends partially along the length of the outer housing. The mixing passage provides fluid communication between a first region and a second region of an interior space. The exhaust treatment and mixing assembly includes a mixing structure positioned outside of a first region end of the inner conduit for swirling the exhaust flow directed from an inlet into the inner conduit. The exhaust treatment and mixing assembly includes a flow member positioned within the inner conduit. The exhaust treatment and mixing assembly includes an exhaust expansion feature that extends from a second region end of the inner conduit with a free end that terminates toward an exhaust treatment substrate and an outer housing side wall.

IPC Classes  ?

  • F01N 3/20 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operationControl specially adapted for catalytic conversion
  • F01N 13/00 - Exhaust or silencing apparatus characterised by constructional features

16.

EXHAUST AFTERTREATMENT SYSTEM

      
Application Number US2024050621
Publication Number 2025/080740
Status In Force
Filing Date 2024-10-10
Publication Date 2025-04-17
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Sridharan, Naveen
  • Pietrzyk, Mariusz
  • Silva, Francisco
  • Follon, Bavo

Abstract

An exhaust aftertreatment device is configured to pre-heat the exhaust prior to reaching the SCR substrate (e.g., during a cold start of the engine). The pre-heat arrangement includes a coated member, a heater, and a hydrocarbon injector mounting location disposed upstream from an SCR substrate. The coated member includes a PGM (platinum group metals) coating on a substrate, mixer, or other structure. A control system manages operation of the heater and hydrocarbon injector based on temperature readings within the aftertreatment device.

IPC Classes  ?

  • F01N 3/10 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
  • F01N 3/20 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operationControl specially adapted for catalytic conversion

17.

COMPOSITE PALLET, METHOD FOR FORMING A COMPOSITE STRUCTURAL COMPONENT, METHOD FOR FORMING A COMPOSITE PALLET

      
Application Number US2024048416
Publication Number 2025/072334
Status In Force
Filing Date 2024-09-25
Publication Date 2025-04-03
Owner DONALDSON COMPANY, INC. (USA)
Inventor Rietveld, Caleb

Abstract

A composite pallet having a top surface, a bottom surface, and at least one forklift opening located between the bottom and top surfaces; wherein at least a portion of the pallet is formed from a composite material including filter media and a cured resin. A method for forming a composite structural component can include providing filter media material including one or both of cellulosic fibers and synthetic fibers; mixing the filter media material with a liquid resin material; placing the mixture of filter media material and liquid resin material into a mold; allowing the mixture to cure to form a structural member; and removing the structural member from the mold.

IPC Classes  ?

  • B65D 19/00 - Pallets or like platforms, with or without side walls, for supporting loads to be lifted or lowered

18.

FILTER CARTRIDGE

      
Application Number US2024046745
Publication Number 2025/059559
Status In Force
Filing Date 2024-09-13
Publication Date 2025-03-20
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Harrold, Brent T.
  • Johnson, Philip E.
  • Anderson, Brent L.
  • Martin, Curt
  • Wells, Jason A.
  • Gossbauer, Scott A.

Abstract

A fluid filter cartridge can include a first end cap, a second end cap, a filter media arrangement extending between the first and second end caps along a longitudinal axis, the filter media arrangement including a plurality of adjoining media sections arranged to define an interior volume having a convex multi-sided cross-sectional shape, and an inner support structure disposed within the interior volume and supporting each of the plurality of media sections. In some examples, three media sections are provided such that the convex multi-sided cross-sectional shape has a generally triangular shape.

IPC Classes  ?

  • B01D 29/23 - Supported filter elements arranged for outward flow filtration
  • B01D 46/52 - Particle separators, e.g. dust precipitators, using filters embodying folded material

19.

FILTER CARTRIDGE MEDIA WITH A VARIABLE WINDING BEAD

      
Application Number US2024044029
Publication Number 2025/049472
Status In Force
Filing Date 2024-08-27
Publication Date 2025-03-06
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Mitchell, Nicholas A.
  • Sala, Mark A.
  • Mckenney, Thomas J.

Abstract

A filter cartridge includes a coiled filter media having a trailing edge, a first elongate edge extending from a first end of the trailing edge, and a second elongate edge extending from a second end of the trailing edge. A seal bead is disposed on the filter media and extends along at least a portion of the second elongate edge. A winding bead is disposed on the filter media and includes a first portion extending longitudinally along the first elongate edge toward the trailing edge and a second portion extending from the first portion towards the second elongate edge. At least a portion of each of the seal bead and the second portion are disposed within a sealing region portion of the filter media.

IPC Classes  ?

  • B01D 46/52 - Particle separators, e.g. dust precipitators, using filters embodying folded material

20.

FUSION PROTEINS FOR PURIFYING NUCLEIC ACIDS

      
Application Number US2024043621
Publication Number 2025/043174
Status In Force
Filing Date 2024-08-23
Publication Date 2025-02-27
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Dzuricky, Michael
  • Luginbuhl, Kelli, M.
  • Mcguiness, James

Abstract

Provided herein are fusion proteins and methods of use thereof to purify nucleic acids from a composition. The disclosed compositions and methods allow for faster, more efficient purification of nucleic acids compared to traditional affinity chromatography.

IPC Classes  ?

  • C12N 15/10 - Processes for the isolation, preparation or purification of DNA or RNA
  • C12Q 1/6806 - Preparing nucleic acids for analysis, e.g. for polymerase chain reaction [PCR] assay
  • C07K 14/32 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from bacteria from Bacillus (G)
  • C07K 14/78 - Connective tissue peptides, e.g. collagen, elastin, laminin, fibronectin, vitronectin or cold insoluble globulin [CIG]

21.

SYSTEMS AND METHODS FOR PULSE JET FILTER ELEMENT CLEANING IN AGRICULTURAL EQUIPMENT

      
Application Number US2024042616
Publication Number 2025/042710
Status In Force
Filing Date 2024-08-16
Publication Date 2025-02-27
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Finnicum, Joel J.
  • Van Arsdale, Mike J.
  • Adamek, Daniel E.

Abstract

Embodiments herein relate to filtration systems for agricultural equipment. In an embodiment, a filtration system for a piece of agricultural equipment is included having control circuitry, a filter housing, and a pulse cleaning mechanism. The pulse cleaning mechanism is controlled by the control circuitry and is configured to clean a filter element disposed within the filter housing. The control circuitry is configured to receive and/or infer data from and/or about an implement, an attachment, or a header used with the piece of agricultural equipment and adjust a pulse cleaning parameter of the pulse cleaning mechanism based on the data. Other embodiments are also included herein.

IPC Classes  ?

  • F02M 35/08 - Air cleaners with means for removing dust from cleanersAir cleaners with means for indicating cloggingAir cleaners with by-pass means
  • F02M 35/16 - Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines characterised by use in vehicles
  • B01D 46/46 - Auxiliary equipment or operation thereof controlling filtration automatic
  • B01D 46/71 - Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter with pressurised gas, e.g. pulsed air
  • A01D 34/00 - MowersMowing apparatus of harvesters

22.

PULSE AIR CLEANER SYSTEM WITH FILTER SHIELD

      
Application Number US2024042339
Publication Number 2025/038765
Status In Force
Filing Date 2024-08-14
Publication Date 2025-02-20
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Carlson, Michael D.
  • Fabro, Jacob Q.
  • Finnicum, Joel J.
  • Olson, Thomas R.
  • Vanarsdale, Michael J.
  • Decoster, Kristof
  • Adamek, Daniel E.

Abstract

An air cleaner system including a housing, an inner filter, an outer filter, a sleeve, a shield, and a discharge outlet. The housing includes a dirty air inlet and a clean air outlet, and dirty air entering the housing through the dirty air inlet must pass through the outer filter, and then the inner filter, before entering the clean air outlet. The sleeve is positioned in an inter-filter volume between the inner filter and the outer filter. The shield is positioned in a sleeve-inner filter volume defined by the sleeve and the inner filter, the shield and the sleeve defining a sleeve-shield volume. The discharge outlet opens into the sleeve-shield volume, and pulsed gas entering the sleeve-shield volume moves along a filter axis. The shield includes shield openings to allow air to pass from the sleeve-shield volume to the inner filter.

IPC Classes  ?

  • B01D 46/00 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
  • B01D 46/24 - Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
  • B01D 46/56 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
  • B01D 46/71 - Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter with pressurised gas, e.g. pulsed air
  • B01D 46/62 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
  • B01D 46/64 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series arranged concentrically or coaxially

23.

TOROIDAL BLADE INERTIAL SEPARATOR

      
Application Number US2024041207
Publication Number 2025/034803
Status In Force
Filing Date 2024-08-07
Publication Date 2025-02-13
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Weineck, Gerald E., Ii
  • Quam, Daryl L.

Abstract

A separator arrangement including a tubular member extending along a longitudinal axis and a toroidal blade arrangement disposed within the tubular member in a fixed position. The toroidal blade arrangement can include a plurality of blade members, each being looped from a first end to a second end with a radially distal portion located between the first and second ends to define a radially bounded passageway extending along a second axis disposed at an oblique angle to the longitudinal axis. In one aspect, each of the blade members is looped such that an inner side surface presents both a leading face and a trailing face.

IPC Classes  ?

  • B01D 45/16 - Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by the winding course of the gas stream

24.

ARTICLES WITH RE-ENTRANT GEOMETRIES AND METHODS OF MAKING THE SAME

      
Application Number US2024040332
Publication Number 2025/029885
Status In Force
Filing Date 2024-07-31
Publication Date 2025-02-06
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Yoder, Mikayla A.
  • Zhao, Tianheng
  • Newman, Matthew
  • Sanzari, Ilaria
  • Hussain, Fahad
  • Xiong, Gang

Abstract

A method of making a master pattern includes forming a polymer mold comprising a pattern with a plurality of structures, each of the structures having a radius of 100 μm or less; applying a conductive seed layer comprising gold onto the polymer mold; pre-wetting the conductive seed layer with a solvent; electroforming the polymer mold with a metal by applying an electroforming solution comprising the metal ions onto the pre-wetted conductive seed layer; and separating the electroformed metal from the polymer mold to form the master pattern.

IPC Classes  ?

  • B29C 33/38 - Moulds or coresDetails thereof or accessories therefor characterised by the material or the manufacturing process
  • B29C 33/42 - Moulds or coresDetails thereof or accessories therefor characterised by the shape of the moulding surface, e.g. ribs or grooves
  • B81C 99/00 - Subject matter not provided for in other groups of this subclass
  • C25D 1/00 - Electroforming
  • G03F 7/00 - Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printed surfacesMaterials therefor, e.g. comprising photoresistsApparatus specially adapted therefor

25.

INERTIAL SEPARATOR, INERTIAL SEPARATOR PANEL, METHOD FOR MANUFACTURING AN INERTIAL SEPARATOR PANEL, AND A METHOD FOR SEPARATING PARTICULATES AND/OR WATER FROM GAS

      
Application Number US2024037236
Publication Number 2025/014968
Status In Force
Filing Date 2024-07-09
Publication Date 2025-01-16
Owner DONALDSON COMPANY, INC. (USA)
Inventor Campbell, Steven K.

Abstract

An inertial separator includes: (a) an air inlet member comprising an air inlet member first end and an air inlet member second end, the air inlet member first end comprising an air inlet, the air inlet member second end being located at an end opposite the air inlet member first end, and an air inlet member wall extending peripherally around an axis extending from the air inlet member first end to the air inlet member second end and having an inner surface and an outer surface, wherein: (i) the air inlet member second end comprises a contaminant outlet arrangement comprising a contaminant outlet wall extending from the air inlet member wall, and a contaminant opening for flow of particulate therethrough; (ii) a central hub and a plurality of vanes extending from the central hub to the inner surface of the air inlet member peripherally extending wall, wherein the plurality of vanes are configured to cause air entering the air inlet to swirl; (iii) the plurality of vanes are non-overlapping vanes; and (b) an air outlet member comprising a first end and a second end, the first end comprising an air inlet, and the second end comprising an air outlet, and an air outlet member wall extending peripherally around the axis, the air outlet member wall having an inner surface and an outer surface, wherein, when the air outlet member engages the air inlet member: (i) the outer surface of the air outlet member and the inner surface of the air inlet member wall forming an region for collection of particulates and/or water droplets. Inertial separator panels and methods of making and using are included.

IPC Classes  ?

  • B01D 45/04 - Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia
  • B01D 45/16 - Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by the winding course of the gas stream
  • B01D 45/18 - Cleaning-out devices
  • B04C 3/06 - Construction of inlets or outlets to the vortex chamber

26.

POROUS PTFE ARTICLE WITH HYDROPHILIC COATING

      
Application Number US2024033891
Publication Number 2024/259155
Status In Force
Filing Date 2024-06-13
Publication Date 2024-12-19
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Goertz, Matthew P.
  • Sontag, S. Kyle
  • Kasse, Catherine M.

Abstract

Porous ePTFE articles coated with a hydrophilic coating are provided. The coating may be modified by covalent modifications to the PVOH coating. Covalent modifications may include small molecule grafting, polymer grafting to or from the PVOH backbone, crosslinking of the polymer via thermal or photochemistry, and the like, and combinations thereof. A second polymer coating may be applied onto the PVOH coating. The second polymer may be added, for example, by using a saturation coating technique such as dip coating or spray coating to saturate a PVOH coated ePTFE substrate with a second polymer carried by a fluid. Application of the second polymer may form a second conformal coating over the first PVOH coating.

IPC Classes  ?

  • B01D 67/00 - Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
  • B01D 69/02 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or propertiesManufacturing processes specially adapted therefor characterised by their properties
  • B01D 69/14 - Dynamic membranes
  • B01D 71/36 - Polytetrafluoroethene
  • B01D 71/38 - PolyalkenylalcoholsPolyalkenylestersPolyalkenylethersPolyalkenylaldehydesPolyalkenylketonesPolyalkenylacetalsPolyalkenylketals
  • B01D 61/14 - UltrafiltrationMicrofiltration
  • B01D 69/12 - Composite membranesUltra-thin membranes
  • B01D 71/78 - Graft polymers

27.

POROUS PTFE ARTICLE WITH HYDROPHILIC COATING

      
Application Number US2024033893
Publication Number 2024/259157
Status In Force
Filing Date 2024-06-13
Publication Date 2024-12-19
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Jaye, Joe A.
  • Goertz, Matthew P.
  • Kasse, Catherine M.
  • Moravec, Davis B.
  • Hauser, Bradly G.
  • Peterson, Madeline C.
  • Olson, David A.
  • Hall, Cecilia C.
  • Sontag, S. Kyle
  • Jackson, Elizabeth A.

Abstract

Porous ePTFE articles coated with a hydrophilic coating are provided. The coating may be modified by covalent modifications to the PVOH coating. Covalent modifications may include small molecule grafting, polymer grafting to or from the PVOH backbone, modifying the PVAc precursor of the PVOH, crosslinking of the polymer via thermal or photochemistry, crosslinking of the polymer with a multifunctional crosslinking agent, and the like, and combinations thereof.

IPC Classes  ?

  • B01D 67/00 - Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
  • B01D 69/02 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or propertiesManufacturing processes specially adapted therefor characterised by their properties
  • B01D 69/14 - Dynamic membranes
  • B01D 71/36 - Polytetrafluoroethene
  • B01D 71/38 - PolyalkenylalcoholsPolyalkenylestersPolyalkenylethersPolyalkenylaldehydesPolyalkenylketonesPolyalkenylacetalsPolyalkenylketals
  • B01D 61/14 - UltrafiltrationMicrofiltration
  • B01D 69/12 - Composite membranesUltra-thin membranes
  • B01D 71/78 - Graft polymers
  • C08J 3/24 - Crosslinking, e.g. vulcanising, of macromolecules
  • C08J 5/22 - Films, membranes or diaphragms
  • C08J 7/04 - Coating

28.

FILTER ELEMENTS, RELATED FILTER ASSEMBLY AND FILTER PACKAGE

      
Application Number US2024033073
Publication Number 2024/254498
Status In Force
Filing Date 2024-06-07
Publication Date 2024-12-12
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Catoor, Bart
  • Verstraete, Mathijs
  • Moers, Anthonius Jan-Baptist Maria
  • Decoster, Kristof
  • Van De Poel, Gunther
  • De Crombrugghe, Walther
  • Proost, Gert
  • Claes, Jeroen
  • Dewit, Johan
  • De Wolf, Marc

Abstract

The present disclosure relates to a filter element comprising a filtration media pack comprising a longitudinal axis, a first open end cap arranged at a first axial end of the filtration media pack comprising a central opening, wherein the first end cap is at least partially flexible and non-destructively deformable in a radial direction, and comprises a circumferential seal circumferentially surrounding the opening, wherein the circumferential seal comprises one or more radial seal extensions; and one or more, preferably separate, reinforcement structures at least partially embedded into a material of the first end cap and preferably arranged in respective areas of the one or more radial seal extensions.

IPC Classes  ?

  • B01D 46/24 - Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
  • B01D 46/52 - Particle separators, e.g. dust precipitators, using filters embodying folded material

29.

FILTRATION SYSTEM WITH ONLINE FILTER MAINTENANCE CAPABILITY

      
Application Number US2024033166
Publication Number 2024/254570
Status In Force
Filing Date 2024-06-08
Publication Date 2024-12-12
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Ronneau, Olivier
  • Capaert, Thierry
  • Van Gelder, Wim

Abstract

Embodiments herein relate to filtration systems, such as air filtration systems. In an embodiment, a filtration system can be included having a control circuit and a filter house, wherein the filter house can be divided into segregated air flow sections. The segregated air flow sections can include a first operating section, at least one further operating section, and at least one backup section. The control circuit can operate the filter system in a first and second operation mode. The first operation mode includes an air flow control system directing air flow through the first operating section and the at least one further operating section and blocking air flow through the backup section. The second operation mode includes blocking air flow through one of the first operating section and the at least one further operating section and maintaining air flow through the other operating section and the backup section.

IPC Classes  ?

  • B01D 46/04 - Cleaning filters
  • B01D 46/44 - Auxiliary equipment or operation thereof controlling filtration
  • B01D 46/58 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in parallel
  • B01D 46/71 - Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter with pressurised gas, e.g. pulsed air
  • B01D 46/90 - Devices for taking out of action one or more units of multi-unit filters, e.g. for regeneration or maintenance

30.

STACKED FILTER ARRANGEMENT

      
Application Number US2024029705
Publication Number 2024/238799
Status In Force
Filing Date 2024-05-16
Publication Date 2024-11-21
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Salhab, Abbas
  • Peach, Aaron

Abstract

A filter arrangement includes a first filter assembly; a second filter assembly; and a cam assembly to cause an airtight seal between the first filter assembly and second filter assembly. The cam assembly pushes the first filter assembly into sealing engagement with a first sump frame, which pushes the floating shelf toward the second filter assembly and a second sump frame into sealing engagement with the second filter assembly. The filter arrangement can be used in a system including a 3D printer producing a fluid stream of fumes and particles, in which the filter arrangement is oriented to filter the fluid stream. The filter arrangement may alternatively have a floating shelf secured to the housing; a sump frame extending from the floating shelf, and the floating shelf being adjustable to selectively seal the second filter assembly to the sump frame.

IPC Classes  ?

  • B01D 46/00 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours

31.

FILTER ASSEMBLIES AND RELATED FILTER ELEMENTS

      
Application Number US2024019455
Publication Number 2024/226187
Status In Force
Filing Date 2024-03-11
Publication Date 2024-10-31
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Krystufek, Miloslav
  • Catoor, Bart
  • Verstraete, Mathijs
  • Klaver, Tom

Abstract

A fluid filter assembly having filter housing for receiving a replaceable filter element; a filter element operably arranged within the filter housing and having a first end cap connected to a first end of a fluid filtration media. The filter housing has a first housing part and a second housing part. The first end cap is adapted for releasable attachment to the first housing part and adapted for releasable attachment to the second housing part and for, preferably in a sealing manner, connecting the first housing part and the second housing part; related filter elements and adaptors for use with the fluid filter assembly.

IPC Classes  ?

  • B01D 46/24 - Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
  • B01D 46/88 - Replacing filter elements
  • B01D 27/08 - Construction of the casing
  • B01D 35/30 - Filter housing constructions
  • B01D 46/00 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours

32.

EXHAUST AFTERTREATMENT SYSTEM

      
Application Number US2024024555
Publication Number 2024/220339
Status In Force
Filing Date 2024-04-15
Publication Date 2024-10-24
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Sridharan, Naveen
  • Pietrzyk, Mariusz
  • Follon, Bavo
  • Silva, Francisco
  • Maddineni, Ajay Kumar
  • Pandey, Rangesh
  • S, Ashish
  • Gandigudi, Niranjan
  • Solheid, Matthew
  • Kumar, Gopal

Abstract

In an exhaust conduit line extending downstream from an engine, an upstream exhaust aftertreatment arrangement and a downstream exhaust aftertreatment arrangement are disposed. Each of the upstream and downstream aftertreatment arrangements includes a respective mixer, a respective doser, and a respective catalytic substrate. The downstream aftertreatment arrangement is larger than the upstream aftertreatment arrangement. The combination of first aftertreatment and second aftertreatment arrangement is included to support requirement of ultra-low NOx conversions including the cold load collectives of vehicle operations. The mixer design is modular to be used both as a urea mixer and also as a hydrocarbon mixer across the exhaust aftertreatment system.

IPC Classes  ?

  • F01N 3/021 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
  • F01N 3/28 - Construction of catalytic reactors
  • F01N 13/00 - Exhaust or silencing apparatus characterised by constructional features

33.

FILTER ARRANGEMENTS FOR LIQUIDS AND METHODS OF USE

      
Application Number US2024024512
Publication Number 2024/216224
Status In Force
Filing Date 2024-04-12
Publication Date 2024-10-17
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Gustafson, Michael J.
  • Anderson, Brent L.

Abstract

A filter assembly includes: a filter element having filter media; an end arrangement removably positionable over the filter element; a first abutment member and a second abutment member capable of abutting when the assembly is in a first condition and prevented from abutting when the assembly is in a second condition; and a transition arrangement to enable transition of the assembly between the first condition and second condition.

IPC Classes  ?

  • B01D 29/21 - Supported filter elements arranged for inward flow filtration with corrugated, folded or wound sheets
  • B01D 29/58 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection arranged concentrically or coaxially
  • B01D 29/96 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor in which the filtering elements are moved between filtering operationsParticular measures for removing or replacing the filtering elementsTransport systems for filters
  • B01D 35/027 - Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks rigidly mounted in or on tanks or reservoirs

34.

FILTER ARRANGEMENTS FOR LIQUIDS AND METHODS OF USE

      
Application Number US2024024514
Publication Number 2024/216225
Status In Force
Filing Date 2024-04-12
Publication Date 2024-10-17
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Johnson, Andrew F.
  • Gustafson, Michael J.
  • Anderson, Brent L.
  • Sporre, Timothy D.

Abstract

A filter assembly includes: a filter cartridge having filter media and a first end cap holding an axially disposed seal member; an end arrangement sized to engage against the filter cartridge and form a seal with the seal member; and an anti-rotation arrangement constructed and arranged to prevent the filter cartridge and cover arrangement from rotation relative to each other.

IPC Classes  ?

  • B01D 29/21 - Supported filter elements arranged for inward flow filtration with corrugated, folded or wound sheets
  • B01D 29/58 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection arranged concentrically or coaxially
  • B01D 29/96 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor in which the filtering elements are moved between filtering operationsParticular measures for removing or replacing the filtering elementsTransport systems for filters
  • B01D 35/027 - Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks rigidly mounted in or on tanks or reservoirs

35.

MEMBRANE CHROMATOGRAPHY CASSETTE ASSEMBLY

      
Application Number US2024022663
Publication Number 2024/211303
Status In Force
Filing Date 2024-04-02
Publication Date 2024-10-10
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Zhou, Jinxiang
  • Bommineni, Suresh B.
  • Temples, Graham
  • Rahmathullah, Aflal

Abstract

The present technology relates to a cassette assembly having an inlet cassette plate defining an inlet flow path, and an outlet cassette plate defining an outlet flow path. The outlet cassette plate is configured to be arranged in a stack with the inlet cassette plate. A membrane stack is disposed between the inlet cassette plate and the outlet cassette plate. The inlet flow path is configured to be in fluid communication with the outlet flow path through the membrane stack to form an assembly flow path. The cassette assembly is configured to receive an elution solution, and an elution concentration is substantially constant as the inner nominal volume varies.

IPC Classes  ?

  • B01D 15/22 - Selective adsorption, e.g. chromatography characterised by constructional or operational features relating to the construction of the column
  • B01J 20/28 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof characterised by their form or physical properties
  • B01D 63/08 - Flat membrane modules

36.

MICROFLUIDIC DEVICES

      
Application Number US2024022225
Publication Number 2024/206818
Status In Force
Filing Date 2024-03-29
Publication Date 2024-10-03
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Nelson, Jacob A.
  • Colling, Connor J.
  • Hauser, Bradly G.
  • Moravec, Davis B.

Abstract

A separation assembly has a microfluidic separation element having a substrate layer. The microfluidic separation element defines an element inlet, a first element outlet, and a second element outlet. The first element outlet is defined by the substrate layer. A permeate draining layer abuts the substrate layer. The permeate draining layer is downstream of the first element outlet.

IPC Classes  ?

  • C12M 3/06 - Tissue, human, animal or plant cell, or virus culture apparatus with filtration, ultrafiltration, inverse osmosis or dialysis means
  • B01L 3/00 - Containers or dishes for laboratory use, e.g. laboratory glasswareDroppers
  • C12M 1/00 - Apparatus for enzymology or microbiology

37.

COMPOSITE SEPARATION MEDIA

      
Application Number US2024022262
Publication Number 2024/206845
Status In Force
Filing Date 2024-03-29
Publication Date 2024-10-03
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Goertz, Matthew P.
  • Sontag, Stephen K.
  • Hauser, Bradly G.

Abstract

A layered separation media includes a fibrous layer including a non-woven media; and a first coating disposed on the non-woven media, the first coating comprising a crosslinked hydrogel; and a membrane layer including a membrane; and a second coating disposed on the membrane. The second coating may also include a crosslinked hydrogel. The layered separation media may be used in a system for membrane chromatography. A method of separating a protein from a liquid stream may include flowing the liquid stream through the layered separation media. The protein may bind with functional groups in the hydrogel. The layered separation media may have a DBC10 of 50 mg/mL or greater.

IPC Classes  ?

  • B01D 67/00 - Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
  • B01D 69/10 - Supported membranesMembrane supports
  • B01D 69/12 - Composite membranesUltra-thin membranes
  • B01D 71/60 - Polyamines

38.

FLUORINE-FREE HYDROPHOBIC PERMEABLE MATERIAL COATING

      
Application Number US2024022307
Publication Number 2024/206875
Status In Force
Filing Date 2024-03-29
Publication Date 2024-10-03
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Sontag, Stephen K.
  • Yoder, Mikayla A.
  • Goertz, Matthew P.
  • Moravec, Davis B.

Abstract

An article includes a permeable material having a surface; and a hydrophobic coating on the surface forming a hydrophobic surface, the hydrophobic coating being free of fluorine, and the hydrophobic surface having a water-contact angle of 95 degrees or greater. The article may be a vent. A method of making the hydrophobic article includes applying a hydrophobic material onto a permeable material; and curing the hydrophobic material to form a hydrophobic surface. The hydrophobic coating may include siloxane.

IPC Classes  ?

  • B01D 67/00 - Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
  • B01D 69/02 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or propertiesManufacturing processes specially adapted therefor characterised by their properties

39.

ATOMIC LAYER DEPOSITION OF FILTRATION MEDIA

      
Application Number US2024022303
Publication Number 2024/206872
Status In Force
Filing Date 2024-03-29
Publication Date 2024-10-03
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Lauer, David D.
  • Moravec, Davis B.

Abstract

Articles containing coated porous substrates and methods of making and using the same are provided. The article may be a filter media. The article includes a porous substrate with a non-reactive base polymer; a reactive polymer disposed on at least a portion of the base polymer, the reactive polymer having a surface energy that is higher than a surface energy of the non- reactive base polymer; and a compound comprising a metal disposed on at least a portion of the reactive polymer. The compound may be disposed on the reactive polymer using vapor deposition.

IPC Classes  ?

  • B01D 39/16 - Other self-supporting filtering material of organic material, e.g. synthetic fibres

40.

FLUID FILTRATION CASSETTE ASSEMBLY

      
Application Number US2024022391
Publication Number 2024/206938
Status In Force
Filing Date 2024-03-29
Publication Date 2024-10-03
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Zhou, Jinxiang
  • Cleveland, Raymond S.
  • Little, Daniel P.
  • Druecke, Benjamin C.
  • Goertz, Matthew P.
  • Rahmathullah, Aflal

Abstract

The present application discloses a cassette assembly including an inlet cassette plate, an outlet cassette plate, and a separation layer disposed therebetween. The inlet cassette plate defines an inlet flow path and an inlet channel extending therefrom. The outlet cassette plate is configured to be arranged in a stack with the inlet cassette plate and defines an outlet flow path and an outlet channel extending therefrom. The separation layer extends from a first lateral end to a second lateral end. The inlet flow path is configured to be in fluid communication with the outlet flow path through the separation layer. The inlet channel defines an effective inlet surface area of the separation layer and the outlet channel defines an effective outlet surface area of the separation layer. The effective inlet surface area defines a first width towards the first lateral end and a second width towards the second lateral end.

IPC Classes  ?

41.

MODULAR FLUID FILTRATION CASSETTE ASSEMBLY

      
Application Number US2024022396
Publication Number 2024/206941
Status In Force
Filing Date 2024-03-29
Publication Date 2024-10-03
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Zhou, Jinxiang
  • Goertz, Matthew P.
  • Kalayci, Veli
  • Dallas, Andrew J.
  • Cleveland, Raymond S.
  • Little, Daniel P.
  • Dotzler, Daniel J.
  • Rahmathullah, Aflal

Abstract

The present disclosure relates to a cassette assembly. An inlet cassette plate defines an inlet cassette inlet flow path and an inlet cassette outlet flow path. An outlet cassette plate is configured to be arranged in a stack with the inlet cassette plate. The outlet cassette plate defines an outlet cassette inlet flow path configured to be laterally aligned with the inlet cassette inlet flow path, and an outlet cassette outlet flow path configured to be laterally aligned with the inlet cassette outlet flow path. An inlet plug is configured to be inserted in the outlet cassette inlet flow path. An outlet plug is configured to be inserted in the inlet cassette outlet flow path. The inlet and outlet plugs are configured to be removable and reinsertable. A separation layer is disposed between the inlet cassette plate and the outlet cassette plate.

IPC Classes  ?

42.

BONDED ARTICLES

      
Application Number US2024016508
Publication Number 2024/177992
Status In Force
Filing Date 2024-02-20
Publication Date 2024-08-29
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Mccollam, Robert P.
  • Bakke, Daniel J.

Abstract

Articles are disclosed, and methods and apparatuses for making the same, the articles having two or more bonded layers, such as polymer layers. The two or more layers are bonded together by pressing the two or more layers between a first pressing surface and a second pressing surface to a pressure of at least 10,000 psi.

IPC Classes  ?

  • B29C 65/00 - Joining of preformed partsApparatus therefor
  • B29K 27/18 - PTFE, i.e. polytetrafluorethene
  • B29K 105/04 - Condition, form or state of moulded material cellular or porous
  • B29L 31/14 - Filters, sieves or screens

43.

INDOOR AIR QUALITY MONITORING SYSTEM

      
Application Number US2024016504
Publication Number 2024/177990
Status In Force
Filing Date 2024-02-20
Publication Date 2024-08-29
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Wynblatt, Michael J.
  • Whitten, Matthew S.
  • Wessels, Wade A.
  • Bennett, Kyle L.
  • Jackson, Elizabeth A.
  • Quam, Daryl L.

Abstract

Embodiments herein relate to indoor air quality monitoring systems and related methods. In an embodiment an indoor air quality monitoring system is included having a control circuit, a memory circuit, and a sensor channel interface. The system can be configured to store a model set of data reflecting information on air quality determining features within a physical indoor environment, receive sensor data regarding air quality at discrete points within the physical indoor environment, and evaluate the sensor data regarding air quality and perform operations to generate one or more outputs relating to air quality within the physical indoor environment. Other embodiments are also included herein.

IPC Classes  ?

44.

FILTER ELEMENTS, RELATED FILTER ASSEMBLY AND FILTER PACKAGE

      
Application Number US2024015821
Publication Number 2024/173569
Status In Force
Filing Date 2024-02-14
Publication Date 2024-08-22
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Catoor, Bart
  • Verstraete, Mathijs
  • Adamek, Daniel E.

Abstract

The present disclosure relates to a flexible filter media pack arranged in a tubular manner around an axis, a first open end cap connected to a first axial end of the filter media pack in a fluid tight manner, and a second open end cap connected to a second axial end of the filter media pack in a fluid tight manner, characterized in that the first end cap is flexible and can non-destructively be deformed, for instance between a first shape and a different second shape; and related filter package and filter assemblies.

IPC Classes  ?

  • B01D 46/24 - Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
  • B01D 46/52 - Particle separators, e.g. dust precipitators, using filters embodying folded material
  • B01D 46/62 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series

45.

FILTER ELEMENTS AND RELATED FILTER ASSEMBLIES

      
Application Number US2024015834
Publication Number 2024/173578
Status In Force
Filing Date 2024-02-14
Publication Date 2024-08-22
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Catoor, Bart
  • Verstraete, Mathijs

Abstract

The present disclosure relates to a filter element comprising a flexible filter media pack arranged in a tubular manner around an axis, a first open end cap connected to a first axial end of the filter media pack in a fluid tight manner, and a second open end cap connected to a second axial end of the filter media pack in a fluid tight manner, wherein the second open end cap comprises a central opening and a second circumferential seal comprising a radially inwardly into the central opening extending portion of the second end cap, the radially inwardly extending portion comprising at least one circumferential groove, trench or recess arranged adjacent to the central opening, the groove, trench or recess projecting into an inner volume of the filter media pack; and related filter assembly.

IPC Classes  ?

  • B01D 46/24 - Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
  • B01D 46/52 - Particle separators, e.g. dust precipitators, using filters embodying folded material

46.

FILTER HOUSING COVER AND RELATED FILTER ASSEMBLY

      
Application Number US2024015847
Publication Number 2024/173589
Status In Force
Filing Date 2024-02-14
Publication Date 2024-08-22
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Catoor, Bart
  • Verstraete, Mathijs
  • Louvet, Stephane

Abstract

The present disclosure relates to a housing cover for a filter housing comprising an axial end wall connected to a circumferential sidewall arranged around a longitudinal axis, and defining a lower rim of the sidewall surrounding a filter housing interfacing opening, wherein the lower rim is defined by a plane which is slanted with respect to a direction perpendicular to the longitudinal axis; and a related filter assembly.

IPC Classes  ?

  • B01D 46/00 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
  • B01D 46/24 - Particle separators, e.g. dust precipitators, using rigid hollow filter bodies

47.

SYSTEMS FOR DETECTION OF BYPASS VALVE ACTUATION USING PRESSURE DATA

      
Application Number US2024014876
Publication Number 2024/168081
Status In Force
Filing Date 2024-02-07
Publication Date 2024-08-15
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Cronin, Michael J.
  • Gustafson, Michael J.
  • Ilboudo, Yves S.

Abstract

Embodiments herein relate to systems and methods for monitoring bypass valves of a filtration system. In an embodiment, a bypass valve monitoring system is included having a control circuit and a sensing unit wherein the sensing unit generates a signal reflecting high speed pressure and a signal reflecting filter restriction pressure. The bypass valve monitoring system can identify patterns in the signal reflecting high speed pressure associated with filter restriction pressure levels indicating a position of the bypass valve. In an embodiment, the sensing unit generates a signal reflecting acoustics and/or vibrations and a signal reflecting strain and the system is configured to identify patterns associated with the signal reflecting acoustics and/or vibrations reflecting valve chatter and then use correlated values of strain from the signal reflecting strain to determine a bypass valve opening state. Other embodiments are also included herein.

IPC Classes  ?

  • B01D 27/10 - Safety devices, e.g. by-passes
  • F15B 19/00 - Testing fluid-pressure actuator systems or apparatus, so far as not provided for elsewhere
  • F16K 37/00 - Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given

48.

FILTER ASSEMBLY, RELATED FILTER ELEMENTS AND HOUSING COVER

      
Application Number US2024012661
Publication Number 2024/158845
Status In Force
Filing Date 2024-01-23
Publication Date 2024-08-02
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Van De Poel, Gunther
  • Billiau, Tim
  • Verstraete, Mathijs

Abstract

The present disclosure relates to a filter assembly comprising a filter housing and a primary and secondary filter element coaxially arranged about an axis, within said housing along a fluid flow path between an inlet of the housing and an outlet of the housing, wherein an outer surface of a closed first end cap of a secondary element is adapted and arranged for interacting with an inner surface of a closed first end cap of a primary filter element during installation of the primary filter element so as to convert a pushing force exerted on the primary element towards the secondary element into a rotational movement of the primary element up until a first predetermined angular position, followed by a translational movement of the primary filter element towards the secondary filter element in a direction along said axis when said first predetermined angular position is reached.

IPC Classes  ?

  • B01D 46/00 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
  • B01D 46/24 - Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
  • B01D 46/52 - Particle separators, e.g. dust precipitators, using filters embodying folded material
  • B01D 46/60 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in parallel arranged concentrically or coaxially

49.

FILTER CARTRIDGE

      
Application Number US2024011881
Publication Number 2024/155734
Status In Force
Filing Date 2024-01-17
Publication Date 2024-07-25
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Burton, David J.
  • Wessels, Timothy J.
  • Campbell, Steven K.
  • Norwood, Miles E.

Abstract

An air cleaner assembly having a housing defining an interior volume, a filter cartridge installed within the housing interior volume, a cover enclosing the interior volume, and a latch assembly for securing either the filter cartridge within the housing or for securing the cover to the housing. In an aspect, the latch assembly prevents attachment of the cover to the housing when the filter cartridge is not installed within the housing.

IPC Classes  ?

  • B01D 46/24 - Particle separators, e.g. dust precipitators, using rigid hollow filter bodies

50.

PTFE AND ACTIVE PARTICLE COMPOSITIONS

      
Application Number US2023082154
Publication Number 2024/119120
Status In Force
Filing Date 2023-12-01
Publication Date 2024-06-06
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Lawson, Shane
  • Moravec, Davis B.
  • Elsayed, Yehya A.
  • Suthar, Anil

Abstract

Compositions including a matrix, methods of making such compositions, structures including such compositions, methods of disposing such compositions on a substrate; wherein the matrix includes: a plurality of polytetrafluroethylene fibrils formed from PTFE resin and a plurality of active particles.

IPC Classes  ?

  • B01J 20/28 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof characterised by their form or physical properties
  • B01D 39/16 - Other self-supporting filtering material of organic material, e.g. synthetic fibres
  • B01D 46/24 - Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
  • B01J 20/32 - Impregnating or coating
  • B01J 35/56 - Foraminous structures having flow-through passages or channels, e.g. grids or three-dimensional monoliths
  • B01J 35/57 - Honeycombs
  • B01J 35/58 - Fabrics or filaments

51.

POROUS SUBSTRATES COMPRISING PTFE COMPOSITIONS

      
Application Number US2023082162
Publication Number 2024/119128
Status In Force
Filing Date 2023-12-01
Publication Date 2024-06-06
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Lawson, Shane
  • Sontag, Stephen K.
  • Elsayed, Yehya A.
  • Suthar, Anil

Abstract

Porous substrates comprising a composition disposed thereon and methods of disposing a composition on porous substrates. The composition includes a matrix. The matrix includes a plurality of polytetrafluroethylene fibrils and a plurality of active particles.

IPC Classes  ?

  • B01J 20/28 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof characterised by their form or physical properties
  • B01J 20/32 - Impregnating or coating
  • B01J 35/56 - Foraminous structures having flow-through passages or channels, e.g. grids or three-dimensional monoliths
  • B01J 35/58 - Fabrics or filaments
  • B01D 53/02 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by adsorption, e.g. preparative gas chromatography
  • B01J 20/04 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
  • B01J 20/20 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbonSolid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising carbon obtained by carbonising processes
  • B01D 39/16 - Other self-supporting filtering material of organic material, e.g. synthetic fibres

52.

SEPARATION MEDIA AND PURIFICATION METHODS FOR CARBOHYDRATE BINDING DOMAIN CONTAINING MOLECULES

      
Application Number US2023035832
Publication Number 2024/091521
Status In Force
Filing Date 2023-10-24
Publication Date 2024-05-02
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Zhou, Jinxiang
  • Temples, Graham
  • Henn, Daniel

Abstract

Separation media includes a support substrate and a plurality of separation ligands immobilized on the support substrate. The plurality of separation ligands include an affinity capable of recognizing and binding to a carbohydrate recognizing domain. Methods of making the separation media and methods of using the separation media are disclosed.

IPC Classes  ?

  • B01J 20/28 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof characterised by their form or physical properties
  • B01D 15/38 - Selective adsorption, e.g. chromatography characterised by the separation mechanism involving specific interaction not covered by one or more of groups , e.g. affinity, ligand exchange or chiral chromatography
  • B01J 20/32 - Impregnating or coating

53.

SEPARATION MEDIA AND PURIFICATION METHODS FOR CARBOHYDRATE CONTAINING MOLECULES USING THE SAME

      
Application Number US2023035839
Publication Number 2024/091527
Status In Force
Filing Date 2023-10-24
Publication Date 2024-05-02
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Zhou, Jinxiang
  • Temples, Graham
  • Henn, Daniel

Abstract

Methods of using a separation media to isolate a target molecule that includes a carbohydrate are disclosed. The separation media includes a support substrate and a plurality of separation ligands immobilized on the support substrate. The plurality of separation ligands include an affinity capable of recognizing and binding to a carbohydrate.

IPC Classes  ?

  • B01J 20/286 - Phases chemically bonded to a substrate, e.g. to silica or to polymers
  • B01D 15/38 - Selective adsorption, e.g. chromatography characterised by the separation mechanism involving specific interaction not covered by one or more of groups , e.g. affinity, ligand exchange or chiral chromatography
  • B01J 20/289 - Phases chemically bonded to a substrate, e.g. to silica or to polymers bonded via a spacer
  • B01J 20/32 - Impregnating or coating
  • C07K 1/22 - Affinity chromatography or related techniques based upon selective absorption processes
  • G01N 33/80 - Chemical analysis of biological material, e.g. blood, urineTesting involving biospecific ligand binding methodsImmunological testing involving blood groups or blood types

54.

SEPARATION MEDIA AND PURIFICATION METHODS FOR CARBOHYDRATE CONTAINING MOLECULES USING THE SAME

      
Application Number US2023035831
Publication Number 2024/091520
Status In Force
Filing Date 2023-10-24
Publication Date 2024-05-02
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Zhou, Jinxiang
  • Temples, Graham
  • Henn, Daniel

Abstract

Separation media includes a support substrate and a plurality of separation ligands immobilized on the support substrate. The plurality of separation ligands include an affinity group capable of binding to a carbohydrate. Methods of making the separation media and methods of using the separation media are disclosed.

IPC Classes  ?

  • B01J 20/28 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof characterised by their form or physical properties
  • B01D 15/38 - Selective adsorption, e.g. chromatography characterised by the separation mechanism involving specific interaction not covered by one or more of groups , e.g. affinity, ligand exchange or chiral chromatography
  • B01J 20/32 - Impregnating or coating

55.

SEPARATION MEDIA AND PURIFICATION METHODS FOR BLOOD ANTIBODIES USING THE SAME

      
Application Number US2023035837
Publication Number 2024/091525
Status In Force
Filing Date 2023-10-24
Publication Date 2024-05-02
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Zhou, Jinxiang
  • Temples, Graham

Abstract

Separation media that includes a support substrate and a plurality of separation ligands immobilized on the support substrate. The plurality of separation ligands include an affinity capable of recognizing and binding to blood type antigen recognizing domain. Methods of making the separation media and methods of using the separation media.

IPC Classes  ?

  • B01J 20/286 - Phases chemically bonded to a substrate, e.g. to silica or to polymers
  • B01D 15/38 - Selective adsorption, e.g. chromatography characterised by the separation mechanism involving specific interaction not covered by one or more of groups , e.g. affinity, ligand exchange or chiral chromatography
  • B01J 20/289 - Phases chemically bonded to a substrate, e.g. to silica or to polymers bonded via a spacer
  • B01J 20/32 - Impregnating or coating

56.

SPIRAL-WOUND FILTRATION ELEMENT CONFIGURATIONS

      
Application Number US2023034400
Publication Number 2024/076591
Status In Force
Filing Date 2023-10-03
Publication Date 2024-04-11
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Lauer, David D.
  • Druecke, Benjamin C.
  • Olson, David A.
  • Colling, Connor J.
  • Moravec, Davis B.
  • Goertz, Matthew P.
  • Stanley, Nicholas J.
  • Mccollam, Robert P.

Abstract

Embodiments herein relate to filtration devices having spiral wound filtration element. In an embodiment, a filtration device is included having a first spiral wound filter element. The first spiral wound filter element can include one or more spacing layers, one or more membrane layers disposed in between the one or more spacing layers, and a. plurality of spacing elements. The first spiral wound filter element can have an aspect ratio that is less than 8:1 height to width. Other embodiments are also included herein.

IPC Classes  ?

57.

FUEL CELL CHEMICAL FILTER MONITORING SYSTEM AND METHODS

      
Application Number US2023033815
Publication Number 2024/072857
Status In Force
Filing Date 2023-09-27
Publication Date 2024-04-04
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Yuan, Qinghui
  • Sehrawat, Poonam
  • Weineck, Gerald E.

Abstract

Embodiments herein relate to monitoring systems for chemical filters used with fuel cell systems. In an embodiment, a fuel cell chemical filter monitoring system (108) is included having a processing unit (214) and a sensor package (212). The sensor package (212) can include one or more sensors. The sensor package (212) can be configured to interface with an air flow channel (210) of a fuel cell system (104) upstream of a chemical filter (212) and detect an amount of a chemical compound in the air flow channel (210). The sensor package (212) can be operatively connected to the processing unit (214). The processing unit (214) can be configured to track total exposure of the chemical filter to the chemical compound. The processing unit (214) can be configured to estimate a remaining life of the chemical filter (212) based on the tracked total exposure of the chemical filter and data regarding the total capacity of the chemical filter. Other embodiments are also included herein.

IPC Classes  ?

  • H01M 8/04082 - Arrangements for control of reactant parameters, e.g. pressure or concentration
  • B01D 53/38 - Removing components of undefined structure
  • B01D 53/50 - Sulfur oxides
  • B01D 53/52 - Hydrogen sulfide
  • B01D 53/58 - Ammonia
  • B01D 53/72 - Organic compounds not provided for in groups , e.g. hydrocarbons
  • H01M 8/0444 - ConcentrationDensity
  • H01M 8/0662 - Treatment of gaseous reactants or gaseous residues, e.g. cleaning

58.

VENT ASSEMBLY WITH MEDIA SUPPORT BRACE

      
Application Number US2023032550
Publication Number 2024/059078
Status In Force
Filing Date 2023-09-12
Publication Date 2024-03-21
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Dahlstrom, Robert, L.
  • Betcher, Scott, A.
  • Libbey, Michael, S.

Abstract

A vent assembly has a vent housing having a first axial end, a second axial end, and an airflow pathway extending from the first end towards the second end. An environmental opening is towards the second axial end for fluid communication with an external environment. An enclosure opening is towards the first axial end for fluid communication with an interior of an enclosure. A perimetric support surface surrounds the airflow pathway. A support brace extends across the airflow pathway. The support brace has a lateral support surface offset in the axial direction from at least a portion of the perimetric support surface. Filter media is disposed laterally across the airflow pathway. The filter media has a perimeter region supported by the perimetric support surface around the airflow pathway and a central region supported by the lateral support surface such that the filter media is non-planar.

IPC Classes  ?

  • F16H 57/027 - GearboxesMounting gearing therein characterised by means for venting gearboxes, e.g. air breathers
  • B01D 46/00 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
  • B01D 46/10 - Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces

59.

FILTERS AND FILTER ASSEMBLIES WITH CANTED OPENINGS, COLLECTORS AND METHODS OF USE

      
Application Number US2023032590
Publication Number 2024/059102
Status In Force
Filing Date 2023-09-13
Publication Date 2024-03-21
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Mombaerts, Benny J. B.
  • Graham, Stephan A.
  • Movia, Massimo
  • Vezvaei, Iman
  • Gutman, David V.
  • Collin, Eric W. E.
  • Johnson, Steven A.
  • Safarian, Gabriel J.
  • Van Eylen, David L.

Abstract

Filters having canted openings, filter assemblies including the filters, filter supports, collectors, collectors with reduced profile clean air chambers, and methods of using the same are described herein.

IPC Classes  ?

  • B01D 46/00 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
  • B01D 46/24 - Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
  • B01D 46/58 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in parallel
  • B01D 46/71 - Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter with pressurised gas, e.g. pulsed air

60.

BURST VALVE

      
Application Number US2023032112
Publication Number 2024/054519
Status In Force
Filing Date 2023-09-06
Publication Date 2024-03-14
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Goode, Matthew J.
  • Dotzler, Daniel J.
  • Nelson, Robert O.

Abstract

A valve assembly is disclosed that has a valve housing including a first axial end, a cap, a second axial end, and an airflow pathway extending from the first axial end towards the second axial end. The cap is positioned towards the second axial end. The valve housing includes an environmental opening configured for fluid communication with an outside environment, an enclosure opening towards the first axial end configured for fluid communication with an interior of an enclosure, and a film having an expansion diameter disposed in the valve housing laterally across the airflow pathway. The cap has an inner lateral surface and a piercing protrusion (having a piercing tip) extending from the inner lateral surface towards the first axial end. An axial distance is defined between the film and the inner lateral surface. A ratio of the axial distance to the film expansion diameter is at least 0.14.

IPC Classes  ?

  • H01M 50/342 - Non-re-sealable arrangements
  • H01M 50/30 - Arrangements for facilitating escape of gases
  • F16K 17/14 - Safety valvesEqualising valves opening on surplus pressure on one sideSafety valvesEqualising valves closing on insufficient pressure on one side with fracturing member

61.

TWO-STAGE AIR CLEANER SYSTEM WITH SIDE-POSITIONED PRECLEANER AND PRE-CLEANER

      
Application Number US2023072099
Publication Number 2024/036318
Status In Force
Filing Date 2023-08-11
Publication Date 2024-02-15
Owner DONALDSON COMPANY, INC. (USA)
Inventor Wang, Shirong

Abstract

A two-stage air cleaner simple in structure, low in costs, compact and reliable, with automatic dust discharge function. The two-stage air cleaner system can include a main air cleaner and a pre-cleaner positioned at a side of a primary filter cartridge of the main air cleaner. The primary filter cartridge has a dirty side facing downwards and an opposite clean side. The pre-filtered air enters the primary filter cartridge from the dirty side for filtration, and the filtered clean air exits the clean side through an air outlet downstream of the primary filter cartridge. In use, dusts and impurities adsorbed in open channels inside the primary filter cartridge fall into a dust removal arrangement beneath the primary filter cartridge under mechanical vibration and gravity, to automatically discharge from the primary air cleaner, so as to prolong the service life of the primary filter cartridge.

IPC Classes  ?

  • B01D 46/52 - Particle separators, e.g. dust precipitators, using filters embodying folded material
  • B01D 50/20 - Combinations of devices covered by groups and

62.

FILTER ELEMENTS AND ASSEMBLIES

      
Application Number US2023070943
Publication Number 2024/026310
Status In Force
Filing Date 2023-07-25
Publication Date 2024-02-01
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Catoor, Bart
  • Verstraete, Mathijs
  • Decoster, Kristof

Abstract

A filter cartridge having a filtration media arrangement (or media pack) extending along a longitudinal axis between a first end and a second end and defining an internal volume of the filter cartridge; and a first end cap arranged at the first end of the filtration media and further delimiting the internal volume, wherein the first end cap comprises a deformable portion and a displaceable portion surrounded by the deformable portion, wherein the end cap is adapted for allowing a displacement of the displaceable portion along the longitudinal axis between at least a first axial position and a second axial position by a deformation of the deformable portion; wherein the displaceable portion comprises an inner and an outer surface and a first member of a projection-receiver arrangement arranged on the inner surface; and associated filter assembly.

IPC Classes  ?

  • B01D 46/24 - Particle separators, e.g. dust precipitators, using rigid hollow filter bodies

63.

COMPOSITIONS AND METHODS FOR IMPROVING VIRAL TRANSDUCTION

      
Application Number US2023070044
Publication Number 2024/015853
Status In Force
Filing Date 2023-07-12
Publication Date 2024-01-18
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Votaw, Nicole
  • Dzuricky, Michael
  • Luginbuhl, Kelli M.

Abstract

Disclosed herein are fusion proteins comprising the CR3 domain of the low density lipoprotein (LDLR) and a polypeptide with phase behavior. Also provided herein are polypeptides with phase behavior. Additionally provided herein are methods of improving or decreasing viral transduction efficiency comprising administering a fusion protein or polypeptide with phase behavior described herein.

IPC Classes  ?

  • C07K 14/00 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof
  • C07K 14/47 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from animalsPeptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from humans from vertebrates from mammals
  • C07K 1/00 - General processes for the preparation of peptides
  • C12N 15/00 - Mutation or genetic engineeringDNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purificationUse of hosts therefor
  • A61K 38/00 - Medicinal preparations containing peptides
  • A61K 39/00 - Medicinal preparations containing antigens or antibodies
  • C12P 21/06 - Preparation of peptides or proteins produced by the hydrolysis of a peptide bond, e.g. hydrolysate products

64.

VENT WITH INVERSION PROTECTION

      
Application Number US2023024287
Publication Number 2023/235562
Status In Force
Filing Date 2023-06-02
Publication Date 2023-12-07
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Andvik, Marc J.
  • Brownson, Matthew P.
  • Betcher, Scott A.
  • Libbey, Michael S.
  • Rahmathullah, Aflal
  • Dahlstrom, Robert L.
  • Campbell, Shane B.

Abstract

A vent assembly has a vent housing having a first axial end, a second axial end, and an airflow pathway extending between the first axial end and the second axial end. An environmental opening is towards the second axial end configured for fluid communication between an outside environment and an airflow pathway. An enclosure opening is configured to selectively define a fluid flow pathway between an interior of an enclosure and the airflow pathway. The vent assembly has an obstruction having a first relative position and a second relative position. The obstruction is configured to obstruct the fluid flow pathway in the first relative position and unobstruct the fluid flow pathway in the second relative position. Filter media is disposed in the vent housing laterally across the airflow pathway.

IPC Classes  ?

65.

HYDRODYNAMIC SEPARATOR WITH TAPERED MICROFLUIDIC CHANNEL

      
Application Number US2023024006
Publication Number 2023/235396
Status In Force
Filing Date 2023-05-31
Publication Date 2023-12-07
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Nelson, Jacob, A.
  • Moravec, Davis, B.
  • Quam, Daryl, L.

Abstract

The technology disclosed herein relates to hydrodynamic separator. The hydrodynamic separator can be configured to separate a liquid having dispersed particles having a diameter. The hydrodynamic separator has a substrate and a liquid channel at least partially defined by the substrate. The liquid channel is configured to receive a liquid within the channel. The liquid channel has an inlet and an outlet. The outlet has a first outlet branch and a second outlet branch. The liquid channel has an inner wall defining an inner radius around a central axis and an outer wall defining an outer radius around the central axis. The liquid channel has a liquid channel length along the inner wall from the inlet to the outlet. The liquid channel has a channel width between the inner wall and outer wall, where the channel has a tapered region where the channel width increases towards the outlet.

IPC Classes  ?

  • B01D 21/26 - Separation of sediment aided by centrifugal force
  • B01D 43/00 - Separating particles from liquids, or liquids from solids, otherwise than by sedimentation or filtration
  • B01D 21/00 - Separation of suspended solid particles from liquids by sedimentation

66.

ADSORBENT FILTER ASSEMBLY

      
Application Number US2023021381
Publication Number 2023/219960
Status In Force
Filing Date 2023-05-08
Publication Date 2023-11-16
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Tuma, Daniel L.
  • Keller, Scott

Abstract

A filter assembly has a housing. The housing has an inner body and an outer body surrounding at least a portion of the inner body. The inner body has a base extending in a lateral direction and a first sidewall extending axially outward from the base. The inner body defines a cavity. The first sidewall defines a perimetric surface around the cavity. A first filter media extends across the perimetric surface and across the cavity. An adsorbent is disposed in the cavity. The outer body has a second sidewall laterally outward from and surrounding the first sidewall. The second sidewall spans at least 50% of the axial length of the first sidewall. The outer body has a first axial end and a second axial end and a retainer portion extending laterally inward from the first axial end. The retainer portion is positioned axially outward from the first filter media.

IPC Classes  ?

  • B01D 53/04 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
  • B01D 53/26 - Drying gases or vapours
  • G11B 33/14 - Reducing influence of physical parameters, e.g. temperature change, moisture, dust

67.

PRESSURE RELIEF ASSEMBLY

      
Application Number US2023022086
Publication Number 2023/220397
Status In Force
Filing Date 2023-05-12
Publication Date 2023-11-16
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Goode, Matthew J.
  • Dotzler, Daniel J.
  • Cleveland, Raymond S.

Abstract

A pressure relief assembly has a frame having a coupling structure, a valve mounting surface, a valve opening within the valve mounting surface, a vent mounting surface, and a vent opening within the vent mounting surface. The vent opening is functionally parallel to the valve opening. A valve body is sealably disposed on the valve mounting surface across the valve opening. A first detent releasably secures the valve body to the frame. The first detent is configured to release the valve body from the frame upon a minimum pressure differential across the valve opening. A vent is coupled to the vent mounting surface across the vent opening.

IPC Classes  ?

  • F16K 17/04 - Safety valvesEqualising valves opening on surplus pressure on one sideSafety valvesEqualising valves closing on insufficient pressure on one side spring-loaded
  • F16K 27/02 - Construction of housingsUse of materials therefor of lift valves

68.

COMPOSITIONS COMPRISING AAV-BINDING POLYPEPTIDES AND METHODS OF USING THE SAME

      
Application Number US2023066363
Publication Number 2023/212694
Status In Force
Filing Date 2023-04-28
Publication Date 2023-11-02
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Luginbuhl, Kelli M.
  • Hyun, Linus
  • Dzuricky, Michael

Abstract

Disclosed herein are AAV binding proteins and methods of making and using the same.

IPC Classes  ?

  • C07K 14/00 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof
  • C12N 7/02 - Recovery or purification
  • C12N 15/864 - Parvoviral vectors

69.

AIR FILTRATION MONITORING SYSTEM

      
Application Number US2023020067
Publication Number 2023/212115
Status In Force
Filing Date 2023-04-26
Publication Date 2023-11-02
Owner DONALDSON COMPANY, INC. (USA)
Inventor Nelson, Brent R.

Abstract

Embodiments herein relate to air filtration monitoring systems that can measure air volume and/or air velocity. In an embodiment a monitoring system for industrial dust collectors is included having a pressure sensor and a control circuit, wherein the control circuit can be in signal communication with the pressure sensor. The monitoring system can store a previously measured air volume value and/or air velocity value and can calculate real time air volume values and/or real time air velocity values using data from the pressure sensor and the previously measured air volume value and/or air velocity value. Other embodiments are also included herein.

IPC Classes  ?

  • B01D 46/42 - Auxiliary equipment or operation thereof
  • B01D 46/44 - Auxiliary equipment or operation thereof controlling filtration
  • B01D 46/46 - Auxiliary equipment or operation thereof controlling filtration automatic
  • B01D 46/00 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours

70.

FILTER ELEMENTS AND ASSEMBLIES

      
Application Number US2023066083
Publication Number 2023/205790
Status In Force
Filing Date 2023-04-21
Publication Date 2023-10-26
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Catoor, Bart
  • Verstraete, Mathijs
  • Decoster, Kristof

Abstract

A filter element comprising a media pack and a seal, the seal being directly or indirectly connected to the media pack in a sealing manner, the filter element comprising a longitudinal axis, wherein the seal extends along a closed loop trajectory; and wherein the seal defines a predetermined sealing direction with respect to the longitudinal axis along the closed loop trajectory; wherein the predetermined sealing direction is not constant along the loop trajectory; and wherein, in at least one seal portion, the seal direction is not parallel with a sidewall, upper wall or lower wall of the filter element or media pack; and a filter assembly comprising the filter element

IPC Classes  ?

  • B01D 46/52 - Particle separators, e.g. dust precipitators, using filters embodying folded material

71.

SECURE FILTER ELEMENT AND FILTER ASSEMBLY

      
Application Number US2023066085
Publication Number 2023/205792
Status In Force
Filing Date 2023-04-21
Publication Date 2023-10-26
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Catoor, Bart
  • Van De Poel, Günther
  • Verstraete, Mathijs

Abstract

The present disclosure relates to a filter element comprising a filter medium pack elongating along a longitudinal axis, a seal and a supporting structure supporting the seal. The seal comprises at least a first segment and a second segment adjoining the first segment, and wherein at least a portion of the second segment is axially separated from the first segment. The filter medium pack further comprises a coupling arrangement for engaging with a complementary coupling arrangement of the housing of the filter system, and wherein the supporting structure comprises a first circumferential radial surface and a second circumferential radial surface circumscribing the longitudinal axis, and wherein the coupling arrangement of the filter element is disposed on said first circumferential radial surface and wherein the seal is disposed on the second circumferential radial surface.

IPC Classes  ?

  • B01D 29/11 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
  • B01D 46/24 - Particle separators, e.g. dust precipitators, using rigid hollow filter bodies

72.

FILTER ELEMENTS AND ASSEMBLIES

      
Application Number US2023065055
Publication Number 2023/192871
Status In Force
Filing Date 2023-03-28
Publication Date 2023-10-05
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Verstraete, Mathijs
  • De Wolf, Marc

Abstract

An air cleaner comprising: a) a housing b) a cover; c) a filter element within the housing; wherein the surrounding housing-wall defines a pair of opposing receiving V-shaped grooves; wherein the filter element comprises first and second protrusions extending from opposing sides of the filter element and arranged along a common axis; the protrusions being adapted and arranged within the receiving grooves such that the filter element can be rocked about a pivot axis defined by pivot points of the first and second protrusions within the housing pivot the filter element into sealing engagement with the housing; and wherein the protrusions comprise a generally L-shaped cross-section comprising a first leg and a second leg, connected by an elbow connection portion, the elbow connection portion being arranged and adapted to serve as the pivot point for the filter element in the housing.

IPC Classes  ?

  • B01D 46/00 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
  • B01D 46/52 - Particle separators, e.g. dust precipitators, using filters embodying folded material

73.

SYSTEM AND METHOD FOR RECLAIMING SOLVENT

      
Application Number US2023016805
Publication Number 2023/192421
Status In Force
Filing Date 2023-03-30
Publication Date 2023-10-05
Owner
  • DONALDSON COMPANY, INC. (USA)
  • ECOSCE LLC (USA)
Inventor
  • Goertz, Matthew, P.
  • Whitten, Matthew, S.
  • Shuja, Ahmed
  • Mclean, Shawn

Abstract

A system for separating a solvent includes a first mixing tank comprising a waste solvent feed and a reactant feed; a first filter comprising a nanofiltration membrane; a distillation column or an evaporator; a condenser or cooler; and a pervaporation membrane. A method for separating a solvent includes mixing a waste solvent with a reactant to cause precipitation or complexing and forming a mixture; filtering the mixture using a nanofiltration membrane and forming a permeate; distilling or evaporating the permeate to form a concentrated solvent; condensing or cooling the concentrated solvent to below a boiling point of solvents in the concentrated solvent; and filtering the concentrated solvent using pervaporation to form a purified solvent. The system and method may be used to separate and purify a solvent without creating thermal degradation products.

IPC Classes  ?

  • B01D 3/10 - Vacuum distillation
  • B01D 3/14 - Fractional distillation
  • B01D 11/00 - Solvent extraction
  • B01D 61/02 - Reverse osmosisHyperfiltration
  • B01D 61/36 - PervaporationMembrane distillationLiquid permeation
  • C02F 1/44 - Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis

74.

AIR BUBBLE SENSING SYSTEMS AND RELATED SIGNAL PROCESSING

      
Application Number US2023015280
Publication Number 2023/177728
Status In Force
Filing Date 2023-03-15
Publication Date 2023-09-21
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Moravec, Davis B.
  • Cronin, Michael J.
  • Miller, Danny W.
  • Goltzman, Chad M.
  • Yoder, Mikayla A.
  • Hauser, Bradly G.

Abstract

Embodiments herein relate to systems for detecting air bubbles in fluids. In an embodiment, a fluid system aeration detector is included having an optical air bubble sensor. The optical air bubble sensor can include a light source, a light detector, and a sensor controller. The sensor controller can be in signal communication with the light detector and can be configured to detect air bubbles based on the signals received from the light detector. The sensor controller can further be configured to estimate an amount of aeration of a fluid based on the detected air bubbles. Other embodiments are also included herein.

IPC Classes  ?

  • G01N 15/02 - Investigating particle size or size distribution
  • G01N 15/06 - Investigating concentration of particle suspensions
  • G01N 15/14 - Optical investigation techniques, e.g. flow cytometry
  • G01N 21/85 - Investigating moving fluids or granular solids
  • G01N 33/28 - Oils
  • G07C 5/08 - Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle, or waiting time

75.

MIXING TUBES AND EXHAUST AFTERTREATMENT SYSTEMS WITH IMPROVED UREA WATER SOLUTION MIXING PROPERTIES

      
Application Number US2023063712
Publication Number 2023/168428
Status In Force
Filing Date 2023-03-03
Publication Date 2023-09-07
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • De Rudder, Korneel
  • Schellens, Bart
  • Silva, Francisco
  • Follon, Bavo
  • Chauvin, Corine
  • Agar, Anil
  • Maddineni, Ajay
  • Pandey, Rangesh

Abstract

A mixing tube for an exhaust treatment assembly, the mixing tube extending along a tube axis and having a first end and a second end; the mixing tube comprising a first longitudinal tube portion at the first end and a second longitudinal tube portion in between the first longitudinal tube portion and the second end; wherein the first longitudinal portion comprises a first set of regularly spaced openings for allowing an exhaust flow to enter the mixing tube and wherein the first longitudinal tube portion and the second longitudinal tube portion are separated from one another by a flow guide component arranged within the mixing tube such as to separate an injection area from a mixing area in the mixing tube; and exhaust treatment assembly comprising the mixing tube.

IPC Classes  ?

  • F01N 3/28 - Construction of catalytic reactors

76.

FILTER CARTRIDGES; AIR CLEANER ASSEMBLIES; HOUSING; FEATURES; COMPONENTS; AND METHODS

      
Application Number US2023060851
Publication Number 2023/141473
Status In Force
Filing Date 2023-01-18
Publication Date 2023-07-27
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Verstraete, Mathijs
  • Burton, David, J.
  • Wessels, Timothy, J.
  • Campbell, Steven, K.
  • Norwood, Miles

Abstract

An air cleaner assembly having a housing defining an interior volume, a first filter cartridge installed within the housing interior volume, and a second filter cartridge installed within the housing interior volume at a location downstream of the first filter cartridge. The second filter cartridge includes a seal member including a radially directed first seal arrangement forming a seal between the second filter cartridge and the housing, and including a radially directed second seal arrangement forming a seal between the second filter cartridge and the first filter cartridge.

IPC Classes  ?

  • B01D 46/24 - Particle separators, e.g. dust precipitators, using rigid hollow filter bodies

77.

VENT ASSEMBLY

      
Application Number US2023010610
Publication Number 2023/137070
Status In Force
Filing Date 2023-01-11
Publication Date 2023-07-20
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Bommineni, Suresh B.
  • Goode, Matthew J.
  • Campbell, Shane B.
  • Moorman, James P.
  • Sanders, Jacob L.
  • Betcher, Scott A.
  • Tuma, Daniel L.
  • Bronson, Lisa R.
  • Dotzler, Daniel J.

Abstract

The present disclosure is generally related to vent assemblies. More particularly, the present disclosure is related to vent assemblies that are configured for pressure equalization of an enclosure.

IPC Classes  ?

  • H05K 5/02 - Casings, cabinets or drawers for electric apparatus Details

78.

MULTILAYER FIBER COMPOSITE FILTER MEDIA

      
Application Number US2022053718
Publication Number 2023/122216
Status In Force
Filing Date 2022-12-21
Publication Date 2023-06-29
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Willis, Klenton T.
  • Moody, Jared R.
  • Rahmathullah, Aflal
  • Suthar, Anil C.
  • Jackson, Elizabeth

Abstract

A composite media includes a stack with 20 or more layers, each layer including a substrate with a first major surface and an opposing second major surface; and a fiber layer deposited onto the first major surface of the substrate and including polymeric fibers with a diameter of 100 nm to 1.5 μm. Each fiber layer independently has a thickness of 5 μm to 100 μm, and each layer independently has a pore size of 0.1 μm to 10 μm. A filter may include a housing and the composite media disposed within the housing. The filter may be a syringe filter.

IPC Classes  ?

  • B01D 63/08 - Flat membrane modules
  • A61M 5/31 - Syringes Details
  • B01D 67/00 - Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
  • B01D 69/02 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or propertiesManufacturing processes specially adapted therefor characterised by their properties
  • B01D 69/12 - Composite membranesUltra-thin membranes
  • B01J 20/28 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof characterised by their form or physical properties

79.

FILTER SYSTEMS WITH FILTER BAG ASSEMBLIES INCLUDING FILTER BAGS WITH RADIAL SEAL GASKETS

      
Application Number US2022053540
Publication Number 2023/122106
Status In Force
Filing Date 2022-12-20
Publication Date 2023-06-29
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Graham, Stephan A.
  • Verstraete, Mathijs
  • Gutman, David V.
  • Movia, Massimo
  • Catoor, Bart
  • Proost, Gert
  • Safarian, Gabriel J.
  • Johnson, Steven A.

Abstract

Filter systems with filter bag assemblies including filter bags with gaskets configured to form radial seals, as well as corresponding methods of assembling and using the same, are described herein. The filter systems, filter bag assemblies, and filter bags with gaskets may be used in filter systems to remove particulate matter from air or other gases. Methods of using the filter systems and methods of assembling the filter bags on filter service cages in the filter bag assemblies are also described.

IPC Classes  ?

  • B01D 46/02 - Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
  • B01D 46/06 - Particle separators, e.g. dust precipitators, having hollow filters made of flexible material with means keeping the working surfaces flat
  • B01D 46/71 - Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter with pressurised gas, e.g. pulsed air

80.

AIR FILTRATION FOR LIVESTOCK

      
Application Number US2022081013
Publication Number 2023/107942
Status In Force
Filing Date 2022-12-06
Publication Date 2023-06-15
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Yadav, Rakesh K.
  • Wihren, Charles V.
  • Schmitz, Sarah A.
  • Carlson, Michael R.

Abstract

A system for filtration for livestock comprises a barn enclosure including a surrounding wall and a ceiling; the enclosure being sized to house livestock; the bam enclosure having a positive internal pressure differential compared to ambient air. An air inlet is in communication with an interior of the barn enclosure; the air inlet drawing in ambient air. A filter arrangement is downstream of the air inlet, cleaning the drawn in ambient air from the air inlet. A conduit having an air vent arrangement is in air flow communication with the filter arrangement and allowing the filtered air to flow through the vent arrangement into the interior of the barn enclosure. An air exhaust is arranged to exhaust air from the interior of the barn enclosure.

IPC Classes  ?

  • A01K 1/00 - Housing animalsEquipment therefor

81.

NANOMATERIAL COMPOSITIONS AND METHODS OF MAKING THE SAME

      
Application Number US2022051726
Publication Number 2023/102234
Status In Force
Filing Date 2022-12-02
Publication Date 2023-06-08
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Ignacio-De Leon, Patricia A.
  • Yadav, Radesh K.
  • Moody, Jared R.

Abstract

Nanoparticle compositions, electrospun nonwoven material compositions, and methods of making the same are disclosed. The nanoparticles may be made by electrospinning a composition including a sacrificial polymer and first and second ion species into fibers, and decomposing at least a portion of the sacrificial polymer. The nanoparticles may include an electroactive compound. The nanoparticles may include a catalytically active compound. The nanoparticles may further be included in a composition prepared into a nonwoven material. The nonwoven material may be used to prepare battery compositions. The battery compositions may include an electrode that includes the nanoparticles.

IPC Classes  ?

  • D04H 1/728 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by electro-spinning
  • H01M 4/04 - Processes of manufacture in general
  • H01M 4/13 - Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulatorsProcesses of manufacture thereof
  • H01M 4/139 - Processes of manufacture
  • H01M 4/66 - Selection of materials

82.

SAFETY FILTER ELEMENT, FILTER SYSTEM, FILTER ASSEMBLY

      
Application Number US2022026034
Publication Number 2023/096662
Status In Force
Filing Date 2022-04-22
Publication Date 2023-06-01
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Verstraete, Mathijs
  • Van De Poel, Günther
  • Catoor, Bart
  • Decoster, Kristof

Abstract

A safety filter element (1) suitable for use in a filter assembly includes a safety filter media (6) at least partially surrounding a safety filter media inner space (14) and at least one safety filter element endcap (13) having an outlet opening (15) that leads to the safety filter media inner space. The safety filter element endcap comprises a safety filter element circumferential support structure, whereby a sealing component (11) is arranged on the safety filter element circumferential support structure and extends along the safety filter element circumferential support structure, and a housing sealing component (12).

IPC Classes  ?

  • B01D 46/00 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
  • B01D 46/24 - Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
  • B01D 46/64 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series arranged concentrically or coaxially

83.

CHEMICAL FILTER ASSEMBLIES

      
Application Number US2022047805
Publication Number 2023/076328
Status In Force
Filing Date 2022-10-26
Publication Date 2023-05-04
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Lauer, David D.
  • Kruger, Steve M.
  • Lawson, Shane
  • Adamek, Daniel E.
  • Moravec, Davis B.
  • Suthar, Anil

Abstract

A filter assembly has a housing defining an inlet and an outlet. A plurality of chemical filter elements are disposed in the housing and are arranged in a series with respect to fluid flow. A spacing region is between adjacent filter elements in the series. Also disclosed is an assembly having a housing and a first and second chemical filter element. The second chemical filter element is downstream of the first chemical filter element. Each chemical filter element has a sheet of chemical filter material having a first edge and a second edge. A first flow path is defined parallel to a surface of the first sheet extending from its first edge to its second edge. A second flow path is defined parallel to a surface of the second sheet extending from its first edge to its second edge.

IPC Classes  ?

  • B01D 53/02 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by adsorption, e.g. preparative gas chromatography
  • B01D 53/06 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by adsorption, e.g. preparative gas chromatography with moving adsorbents

84.

COALESCING MEDIA

      
Application Number US2022048162
Publication Number 2023/076555
Status In Force
Filing Date 2022-10-28
Publication Date 2023-05-04
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Jones, Derek O.
  • Hauser, Bradly G.
  • Kapoor, Vijay K.

Abstract

Some embodiments relate to a filter material for coalescing a dispersed phase in a continuous phase. The filter material has binder fibers and irregular rayon fibers distributed among the binder fibers. The filter material lacks non-fibrous resin. Some embodiments relate to a filter assembly. The filter assembly has a particle filtration layer, a coalescing layer downstream of the particle filtration layer, and a growth media downstream of the coalescing layer. The coalescing layer is coupled to the particle filtration layer. The growth media has irregular rayon fibers and binder fibers distributed among the irregular rayon fibers. The growth media lacks non-fibrous resin.

IPC Classes  ?

  • B01D 39/16 - Other self-supporting filtering material of organic material, e.g. synthetic fibres
  • B01D 39/18 - Other self-supporting filtering material of organic material, e.g. synthetic fibres the material being cellulose or derivatives thereof

85.

HIGH EFFICIENCY FILTER MEDIA, MEDIA PACKS, AND FILTER ELEMENTS

      
Application Number US2022044395
Publication Number 2023/049269
Status In Force
Filing Date 2022-09-22
Publication Date 2023-03-30
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Yadav, Rakesh K.
  • Tuma, Daniel L.
  • Levac, Robert R.
  • Griffin, Byron G.
  • Beckett, Jonathan M.
  • Suthar, Anil
  • Pannepacker, Jr., Robert J.

Abstract

Filtration media packs, filter elements, and media are disclosed, including media packs having a plurality of layers of single facer media wherein the layers of single facer media include a fluted sheet, a facing sheet, and a plurality of flutes extending between the fluted sheet and the facing sheet, with the fluted sheet and facing sheet formed of multi-layer media can include a polytetrafluoroethylene (PTFE) layer supported by a polymeric scrim layer.

IPC Classes  ?

  • B01D 39/08 - Filter cloth, i.e. woven, knitted or interlaced material
  • B01D 39/16 - Other self-supporting filtering material of organic material, e.g. synthetic fibres

86.

SAFETY FILTER ELEMENT

      
Application Number US2022076590
Publication Number 2023/044440
Status In Force
Filing Date 2022-09-16
Publication Date 2023-03-23
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Catoor, Bart
  • Verstraete, Mathijs
  • Decoster, Kristof
  • Van De Poel, Günther

Abstract

The present disclosure relates to a safety filter element for backing up a failure of a main filter element comprising a primary filter medium pack. The safety filter element comprises a secondary filter medium pack and a shell wherein a first portion of an inner side of a circumferential wall of the shell is surrounding a circumferential side of the secondary filter medium pack, and wherein a second portion of the inner side of the circumferential wall of the shell is radially delimiting a cavity located between a first opening of the shell and a fluid inlet side of the secondary filter medium pack. The cavity allows for receiving or at least partly receiving the primary filter medium pack of the main filter element. The safety filter element comprises a first seal member that comprises a first circumferential sealing portion for sealing to the shell and a second circumferential sealing portion for sealing to the main filter element. The second circumferential sealing portion has a contour shape of single-fold rotational symmetry.

IPC Classes  ?

  • B01D 46/00 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
  • B01D 46/10 - Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
  • B01D 46/52 - Particle separators, e.g. dust precipitators, using filters embodying folded material
  • B01D 46/64 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series arranged concentrically or coaxially

87.

FUME EXTRACTOR SYSTEM AND METHODS

      
Application Number US2022075982
Publication Number 2023/039374
Status In Force
Filing Date 2022-09-06
Publication Date 2023-03-16
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Peach, Aaron, S.
  • Stoneham, Ross, C.J.

Abstract

A fume extractor system (100) and method for use with a 3D printer (102) includes a system operable in three conditions including: continuously filtering particulates and fumes at high temperatures during a printing process without intentional removal of pressure from the print chamber; continuously filtering particulates at high temperatures during a print process with intentional removal of pressure from the print chamber, to keep noxious gases retained in the print chamber; and purging the print chamber of fumes and mixing in ambient air to cool the fumes to a temperature low enough to allow adsorption of the fumes created by the printer. The system has a first compartment (106) holding a first filter assembly (108) and a second (124) compartment holding a second filter assembly (126).

IPC Classes  ?

  • B08B 15/04 - Preventing escape of dirt or fumes from the area where they are producedCollecting or removing dirt or fumes from that area from a small area, e.g. a tool
  • B29C 64/00 - Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
  • B33Y 40/00 - Auxiliary operations or equipment, e.g. for material handling

88.

FILTER CARTRIDGES; FEATURES AND METHODS OF ASSEMBLY; FILTER ASSEMBLIES; AND, FILTER CARTRIDGE COMBINATIONS

      
Application Number US2021046728
Publication Number 2023/022721
Status In Force
Filing Date 2021-08-19
Publication Date 2023-02-23
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Boulos, Michael J.
  • Gieseke, Steven S.
  • Ahuja, Deepak
  • Manchanda, Vikas

Abstract

Filter cartridge arrangements, features thereof and assembly for use therewith, are provided. Selected filter cartridge features are disclosed. Methods of assembly and systems for use are described. The safety or secondary filter cartridge includes an extension of media, typically surrounding an open filter interior and having a first end and a second end. In general, the open filter interior of the secondary or safety cartridge is large enough to accommodate a primary or main filter cartridge therein. In preferred configurations, the media either: has no pleats; or, if pleated, preferably has no pleats greater than about 3 millimeters in depth, more preferably no greater than 2 mm in depth.

IPC Classes  ?

  • B01D 46/24 - Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
  • B01D 46/52 - Particle separators, e.g. dust precipitators, using filters embodying folded material

89.

VEHICLE FILTER MONITORING SYSTEMS AND METHODS

      
Application Number US2022038722
Publication Number 2023/009753
Status In Force
Filing Date 2022-07-28
Publication Date 2023-02-02
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Zambon, Nathan, D.
  • Adamek, Daniel, E.
  • Hauser, Bradly, G.
  • Goltzman, Chad, M.
  • Wynblatt, Michael, J.

Abstract

Embodiments herein relate to vehicle filter monitoring systems and methods. In an embodiment, a filter monitoring system (104) is included having a filter sensor device (1074, 1076) configured to generate data reflecting a filter condition value of a filter (214) and a geolocation circuit (1038) configured to determine a present geolocation of a vehicle (102). The system (104) can also include a system control circuit configured to generate or receive local contaminant concentration values at the present geolocation, evaluate the filter sensor device data to determine at least one of the filter condition value and a change in the filter condition value, and generate at least one of a maintenance recommendation and a routing recommendation based on the local contaminant concentration values, time spent at the geolocation of the vehicle, duty cycle of the vehicle, the filter condition value, and a change in the filter condition value.

IPC Classes  ?

  • B60H 1/00 - Heating, cooling or ventilating devices
  • B60H 3/06 - Filtering
  • F02M 35/024 - Air cleaners using filters, e.g. moistened
  • F02M 35/09 - Clogging indicators
  • F02M 35/10 - Air intakesInduction systems
  • F02M 35/02 - Air cleaners
  • B01D 46/00 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
  • G07C 5/08 - Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle, or waiting time
  • G01C 21/34 - Route searchingRoute guidance

90.

EPOXIDE-ACTIVATED SUBSTRATES AND HYDROPHOBIC INTERACTION CHROMATOGRAPHY MEMBRANE MADE THEREFROM

      
Application Number US2022036711
Publication Number 2023/287718
Status In Force
Filing Date 2022-07-11
Publication Date 2023-01-19
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Zhou, Jinxiang
  • Temples, Graham
  • Guo, Bin

Abstract

Disclosed are activated membranes and derivatized membranes as may be formed from the activated membranes. HIC systems incorporating the derivatized membranes as may be used for use purifying plasmid DNA using hydrophobic interaction separation methods are also disclosed. Derivatized membranes can exhibit a high plasmid DNA binding capacity and short residence times. Methods for forming the activated membranes and methods for further derivatization of the membranes are also described.

IPC Classes  ?

  • B01D 15/32 - Bonded phase chromatography, e.g. with normal bonded phase, reversed phase or hydrophobic interaction
  • B01J 20/28 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof characterised by their form or physical properties
  • B01J 20/282 - Porous sorbents
  • B01J 20/285 - Porous sorbents based on polymers
  • B01J 20/287 - Non-polar phasesReversed phases
  • B01J 20/289 - Phases chemically bonded to a substrate, e.g. to silica or to polymers bonded via a spacer

91.

SEPARATION MEDIA AND PURIFICATION METHODS FOR NUCLEOTIDES AND NUCLEOTIDE COMPONENTS USING THE SAME

      
Application Number US2022036740
Publication Number 2023/287733
Status In Force
Filing Date 2022-07-11
Publication Date 2023-01-19
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Zhou, Jinxiang
  • Temples, Graham
  • Guo, Bin

Abstract

Separation media includes a membrane and a plurality of ligands immobilized on the membrane, the plurality of ligands comprising anion-exchange ligands, cation-exchange ligands, thiophilic ligands, hydrophilic ligands, hydrophobic interaction ligands, or a combination thereof. The separation media may be multimodal. The separation media may be configured for separation of target molecules comprising a nucleic acid, nucleotide, nucleoside, nucleobase, or an analogue or derivative thereof, from a reaction mixture. The separation media may be configured for use with organic solvents. A separation device includes the separation media. Materials including a nucleic acid, nucleotide, nucleoside, nucleobase, or an analogue or derivative thereof, may be purified at high speeds using the separation device.

IPC Classes  ?

  • B01D 15/36 - Selective adsorption, e.g. chromatography characterised by the separation mechanism involving ionic interaction, e.g. ion-exchange, ion-pair, ion-suppression or ion-exclusion
  • B01D 15/32 - Bonded phase chromatography, e.g. with normal bonded phase, reversed phase or hydrophobic interaction
  • B01D 15/38 - Selective adsorption, e.g. chromatography characterised by the separation mechanism involving specific interaction not covered by one or more of groups , e.g. affinity, ligand exchange or chiral chromatography
  • B01J 20/28 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof characterised by their form or physical properties
  • C07K 1/16 - ExtractionSeparationPurification by chromatography
  • C12N 15/10 - Processes for the isolation, preparation or purification of DNA or RNA
  • B01J 41/20 - Anion exchangers for chromatographic processes
  • B01J 47/12 - Ion-exchange processes in generalApparatus therefor characterised by the use of ion-exchange material in the form of ribbons, filaments, fibres or sheets, e.g. membranes
  • C07K 1/18 - Ion-exchange chromatography

92.

FLUID CONDITION SENSING SYSTEM AND METHODS

      
Application Number US2022035302
Publication Number 2023/278434
Status In Force
Filing Date 2022-06-28
Publication Date 2023-01-05
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Zambon, Nathan D.
  • Miller, Danny W.
  • Goltzman, Chad M.
  • Izzi, Giancarlo M.
  • Moravec, Davis B.
  • Cronin, Michael J.

Abstract

Embodiments herein relate to oil condition sensing systems and related methods. In a first aspect, an oil condition sensing system is included having a control circuit, a temperature sensor, and a fluid property sensor, wherein the fluid property sensor measures fluid properties including at least dielectric constant and the oil condition sensing system is configured to automatically detect when an oil change event has occurred, record the fluid property sensor data as new baseline fluid property data after an oil change event has occurred, and evaluate the condition of an engine oil based on a comparison with the baseline fluid property data. The oil condition sensing system can be configured to automatically detect the oil change event by evaluating signals from the fluid property sensor and interpret a change in dielectric constant and/or viscosity crossing a threshold value as an oil change event. Other embodiments are also included herein.

IPC Classes  ?

  • F01M 11/10 - Indicating devicesOther safety devices

93.

MAINTENANCE OF HYDRODYNAMIC SEPARATORS

      
Application Number US2022031972
Publication Number 2022/256537
Status In Force
Filing Date 2022-06-02
Publication Date 2022-12-08
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Moravec, Davis B.
  • Quam, Daryl L.
  • Nelson, Jacob A.
  • Hauser, Bradly G.
  • Goertz, Matthew P.
  • Streed, Timothy J.
  • Colling, Connor J.

Abstract

Some embodiments of the technology disclosed herein relate to a system having a hydrodynamic separator element defining an element inlet and an element outlet. The element outlet has a first element outlet and a second element outlet. The hydrodynamic separator element has a plurality of curved microfluidic channels in fluid communication. Each of the plurality of microfluidic channels are arranged to operate in parallel. Each microfluidic channel defines a channel inlet downstream of the element inlet and a channel outlet having a first channel outlet upstream of the first element outlet and a second channel outlet upstream of the second element outlet. A flow characteristic sensor is in sensing communication with the separator element. A controller is in data communication with the flow characteristic sensor, where the controller is configured to provide a first alert upon the flow characteristic being outside a first threshold.

IPC Classes  ?

  • B01D 17/02 - Separation of non-miscible liquids
  • B01D 21/26 - Separation of sediment aided by centrifugal force
  • B01D 45/12 - Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
  • B01J 19/00 - Chemical, physical or physico-chemical processes in generalTheir relevant apparatus
  • B01L 3/00 - Containers or dishes for laboratory use, e.g. laboratory glasswareDroppers
  • B08B 9/027 - Cleaning the internal surfacesRemoval of blockages

94.

STRUCTURES HAVING RE-ENTRANT GEOMETRIES ON A POROUS MATERIAL SURFACE

      
Application Number US2022031119
Publication Number 2022/251488
Status In Force
Filing Date 2022-05-26
Publication Date 2022-12-01
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Yoder, Mikayla A.
  • Conklin, Christopher P.
  • Moravec, Davis B.
  • Dallas, Andrew J.
  • Zhao, Tianheng
  • Janse Van Rensburg, Richard W.
  • Jackson, Peter
  • Scott, Blane

Abstract

A filter material has a layer of porous material and a plurality of structures disposed on a surface of the layer, where each of the structures has a re-entrant geometry. The plurality of structures may be a plurality of ordered structures. A filter material may include a layer of porous material and a plurality of re-entrant structures disposed on a surface of the layer, each of the re-entrant structures including a stem and a cap, where the caps of adjacent structures are attached to each other to form a plurality of pores, where each pore is disposed between adjacent re-entrant structures.

IPC Classes  ?

  • B01D 39/16 - Other self-supporting filtering material of organic material, e.g. synthetic fibres
  • B01D 46/00 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
  • B01D 46/54 - Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms

95.

POLYMERIC RUPTURE DISK SYSTEM

      
Application Number US2022026355
Publication Number 2022/232149
Status In Force
Filing Date 2022-04-26
Publication Date 2022-11-03
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Bommineni, Suresh B.
  • Moorman, James P.
  • Campbell, Shane B.
  • Rahmathullah, Aflal

Abstract

A rupture disk system has a housing defining a central axis, a first axial end defining an axial opening and a second axial end. An airflow pathway extends from the first axial end facing towards the second axial end. A sealing surface is defined about the airflow pathway towards the first axial end. A shield extends across the airflow pathway on the second axial end. Radial openings are defined around the central axis, where the radial openings are positioned between the first and the second axial ends, such that the airflow pathway extends from the axial opening to the radial openings. A rupture disk is coupled to the housing across the airflow pathway. The rupture disk has a polymeric layer. The rupture disk has an unweakened region having a first thickness and a weakened region having a second thickness. A threshold rupture pressure is defined by the weakened region.

IPC Classes  ?

  • F16K 17/16 - Safety valvesEqualising valves opening on surplus pressure on one sideSafety valvesEqualising valves closing on insufficient pressure on one side with fracturing member with fracturing diaphragm

96.

AIR CLEANER ARRANGEMENT AND ASSOCIATED FILTER ELEMENTS

      
Application Number US2022025607
Publication Number 2022/226098
Status In Force
Filing Date 2022-04-20
Publication Date 2022-10-27
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Verstraete, Mathijs
  • Catoor, Bart
  • Decoster, Kristof

Abstract

A filter element for the filtration of gaseous fluids, comprising a filter media pack having a longitudinal axis, and a circumferential seal support structure sealingly coupled to a sidewall of the media pack, the seal support structure further comprising a first seal and a second seal; wherein axial projections of the first and the second seal along the longitudinal axis on a plane perpendicular to the longitudinal axis define a first and a second closed perimeter, and wherein the areas corresponding to the first and the second closed perimeter comprise a non-overlap region; and associated filter assembly.

IPC Classes  ?

  • B01D 46/00 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
  • B01D 46/52 - Particle separators, e.g. dust precipitators, using filters embodying folded material
  • B01D 50/20 - Combinations of devices covered by groups and

97.

BOWL FILTER CARTRIDGE ARRANGEMENT HAVING TRAP AND METHODS

      
Application Number US2022022301
Publication Number 2022/212340
Status In Force
Filing Date 2022-03-29
Publication Date 2022-10-06
Owner DONALDSON COMPANY, INC. (USA)
Inventor Shepherd, Mark C.

Abstract

A bowl filter cartridge has an annular trap to catch and collect any contaminant, debris, or unfiltered fuel remaining in the filter housing during filter service. This prevents material being collected in the trap from being transferred to the clean side of a new filter, thereby reducing engine exposure.

IPC Classes  ?

  • B01D 29/21 - Supported filter elements arranged for inward flow filtration with corrugated, folded or wound sheets
  • B01D 29/58 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection arranged concentrically or coaxially
  • B01D 29/96 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor in which the filtering elements are moved between filtering operationsParticular measures for removing or replacing the filtering elementsTransport systems for filters
  • B01D 35/30 - Filter housing constructions
  • B01D 36/00 - Filter circuits or combinations of filters with other separating devices

98.

PATTERNED POROUS MATERIAL SURFACES

      
Application Number US2022023143
Publication Number 2022/212900
Status In Force
Filing Date 2022-04-01
Publication Date 2022-10-06
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Yoder, Mikayla A.
  • Moravec, Davis B.
  • Conklin, Christopher P.
  • Goertz, Matthew P.
  • Sontag, Stephen K.
  • Suthar, Anil
  • Rajgarhia, Stuti S.
  • Boyat, Alexandra M.
  • Dallas, Andrew J.

Abstract

A filter media comprises a layer of porous material having a patterned outer surface comprising a plurality of structures. Each structure in the plurality has at least a predetermined height based on an expected contaminant and spacing between each structure in a pair of structures in the plurality is at most a predetermined spacing based on the expected contaminant.

IPC Classes  ?

  • B01D 67/00 - Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
  • B01D 69/02 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or propertiesManufacturing processes specially adapted therefor characterised by their properties
  • B01D 71/16 - Cellulose acetate
  • B01D 71/36 - Polytetrafluoroethene
  • B01D 39/16 - Other self-supporting filtering material of organic material, e.g. synthetic fibres
  • B01D 39/18 - Other self-supporting filtering material of organic material, e.g. synthetic fibres the material being cellulose or derivatives thereof

99.

FOLDABLE FILTER BAGS, FILTER BAG SUPPORT ASSEMBLIES, AND FILTER BAG ASSEMBLIES

      
Application Number US2022020237
Publication Number 2022/197631
Status In Force
Filing Date 2022-03-14
Publication Date 2022-09-22
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Collin, Eric W. E.
  • Gutman, David V.
  • Johnson, Steven A.
  • Mombaerts, Benny J. B.
  • Safarian, Gabriel J.
  • Van Eylen, David L.
  • Vezvaei, Iman

Abstract

Foldable filter bags, filter bag support assemblies, and filter bag assemblies are described herein. The foldable filter bags, filter bag support assemblies, and filter bag assemblies may be used in air filter systems to remove particulate matter from air or other gases. Methods of using the air filter systems and methods of assembling the filter bag assemblies are also described.

IPC Classes  ?

  • B01D 46/00 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
  • B01D 46/02 - Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
  • B01D 46/71 - Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter with pressurised gas, e.g. pulsed air

100.

ENLARGED OPENING FILTER BAGS, SUPPORT ASSEMBLIES, AND FILTER BAG ASSEMBLIES

      
Application Number US2022020242
Publication Number 2022/197632
Status In Force
Filing Date 2022-03-14
Publication Date 2022-09-22
Owner DONALDSON COMPANY, INC. (USA)
Inventor
  • Gutman, David V.
  • Movia, Massimo
  • Collin, Eric W. E.
  • Johnson, Steven A.
  • Mombaerts, Benny J. B.
  • Safarian, Gabriel J.
  • Van Eylen, David L.
  • Vezvaei, Iman

Abstract

Filter bags, filter bag support assemblies, and filter bag assemblies are described herein. The filter bags, filter bag support assemblies, and filter bag assemblies may be used in air filter systems to remove particulate matter from air or other gases. Methods of using the air filter systems and methods of assembling the filter bag assemblies are also described.

IPC Classes  ?

  • B01D 46/00 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
  • B01D 46/02 - Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
  • B01D 46/71 - Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter with pressurised gas, e.g. pulsed air
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