PulPac AB

Sweden

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United States - USPTO
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Date
2026 June 1
2026 May 1
2026 April 1
2026 (YTD) 5
2025 8
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IPC Class
B31B 50/59 - Shaping sheet material under pressure 19
B27N 5/02 - Hollow articles 13
B29C 43/52 - Heating or cooling 13
B29C 51/00 - Shaping by thermoforming, e.g. shaping sheets in matched moulds or by deep-drawingApparatus therefor 12
B29K 1/00 - Use of cellulose, modified cellulose or cellulose derivatives, e.g. viscose, as moulding material 12
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Status
Pending 20
Registered / In Force 18
Found results for  patents

1.

DRY-FORMING MOULD SYSTEM AND METHOD FOR COLLECTING CELLULOSE PRODUCTS IN A DRY-FORMING MOULD SYSTEM

      
Application Number 19113003
Status Pending
Filing Date 2023-08-28
First Publication Date 2026-06-04
Owner PULPAC AB (Sweden)
Inventor Larsson, Ove

Abstract

A dry-forming mould system comprising a forming mould for dry-forming cellulose products from an air-formed cellulose blank structure. The forming mould comprises a first mould part and a second mould part configured for interacting with 2024/061575 each other during dry-forming of the cellulose products from the air-formed cellulose blank structure in the forming mould. The dry-forming mould system comprises a transporting unit and a collecting unit, and the transporting unit is configured for transporting the dry-formed cellulose products from the forming mould to the collecting unit. The collecting unit comprises an elongated product flow channel configured for receiving and guiding the cellulose products, and the product flow channel is configured for receiving several consecutive cellulose products from the forming mould.

IPC Classes  ?

  • B31D 5/02 - Multiple-step processes for making three-dimensional articles including pressing
  • B31B 50/59 - Shaping sheet material under pressure
  • B31B 50/74 - Auxiliary operations
  • B31B 50/98 - Delivering in stacks or bundles
  • B31F 1/00 - Mechanical deformation without removing material, e.g. in combination with laminating

2.

A METHOD FOR MANUFACTURING A CELLULOSE PRODUCT AND A CELLULOSE PRODUCT

      
Application Number 18706349
Status Pending
Filing Date 2022-10-31
First Publication Date 2026-05-07
Owner PULPAC AB (Sweden)
Inventor
  • Larsson, Ove
  • Fawcus, Philip
  • Jones, Mark
  • Farrell, Mark
  • Dunlop, Stuart

Abstract

A cellulose product comprising a non-flat cellulose product structure, a protective inner layer, and a protective outer layer. The cellulose product structure comprises an interior surface, an exterior surface, and an edge structure arranged between the interior surface and the exterior surface. The protective inner layer is applied to the interior surface, and the protective outer layer is arranged in connection to the exterior surface of the cellulose product structure. The protective inner layer and the protective outer layer are forming an integrated structure that is fully enclosing the cellulose product structure, and a sealed outer volume is formed by the protective inner layer and the protective outer layer.

IPC Classes  ?

  • B27N 7/00 - After-treatment, e.g. reducing swelling or shrinkage, surfacingProtecting the edges of boards against access of humidity
  • B05D 7/22 - Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to internal surfaces, e.g. of tubes
  • B27N 3/12 - Moulding of mats from fibres
  • B27N 3/20 - Moulding or pressing characterised by using platen-presses
  • B27N 5/02 - Hollow articles
  • B65D 25/14 - Linings or internal coatings
  • B65D 25/36 - Coverings or external coatings formed by applying sheet material
  • D21J 3/10 - Manufacture of articles by pressing wet fibre pulp, or papier-mâché, between moulds of hollow bodies

3.

METHOD FOR DRY-FORMING A CELLULOSE PRODUCT AND PRODUCT FORMING UNIT FOR DRY-FORMING A CELLULOSE PRODUCT

      
Application Number 19115650
Status Pending
Filing Date 2023-09-25
First Publication Date 2026-04-09
Owner PULPAC AB (Sweden)
Inventor
  • Ekwall, Peter
  • Larsson, Ove

Abstract

A method for dry-forming a cellulose product from cellulose fibres in a product forming unit is disclosed. The method includes opening the forming mould and arranging cellulose fibres into the forming mould; closing the forming mould around the cellulose fibres, and after closing the forming mould, upper mould parts of the forming mould are moved towards each other in a lateral direction, and the lower mould parts are moved towards each other in the lateral direction and in a longitudinal direction towards a flexible membrane; inflating the flexible membrane with a pressure medium and applying a forming pressure onto the cellulose fibres by pressing the cellulose fibres against the upper mould parts and lower mould parts by the inflated flexible membrane, and applying a forming temperature onto the cellulose fibres, for dry-forming the cellulose product with a three-dimensional compressed fibre structure having a closed bottom portion and an upper portion.

IPC Classes  ?

4.

FORMING MOULD COMPRISING A MOVABLE ELEMENT AND METHOD FOR FORMING CELLULOSE PRODUCTS

      
Application Number 18880318
Status Pending
Filing Date 2023-06-16
First Publication Date 2026-01-08
Owner PulPac AB (Sweden)
Inventor
  • Ekstrand, Niklas
  • Arlerot, Björn
  • Bergfjord, Mathias
  • Sjöstrand Jonsson, Felix
  • Ljungberg, Martin
  • Högblom, Olle

Abstract

A forming mould for forming three-dimensional cellulose products from an air-formed cellulose blank structure. The forming mould includes a first mould part and a second mould part. The first mould part and the second mould part are movable relative to each other in a pressing direction and arranged to be pressed relative to each other during forming of the cellulose products. The first mould part includes a movable element displaceable between an extended state and a retracted state, where the movable element in the extended state is arranged as a protruding body extending in the pressing direction relative to a surrounding pressing surface of the first mould part. The movable element is in the retracted state arranged as a pressing surface cooperating with the surrounding pressing surface for forming the cellulose products.

IPC Classes  ?

5.

METHOD FOR TRANSPORTING A CELLULOSE BLANK STRUCTURE VIA A BUFFERING MODULE AND BUFFERING MODULE

      
Application Number 18881780
Status Pending
Filing Date 2023-06-07
First Publication Date 2026-01-01
Owner PULPAC AB (Sweden)
Inventor Högblom, Olle

Abstract

A method for transporting an air-formed cellulose blank structure to a forming mould via a buffering module, includes the steps: continuously feeding the cellulose blank structure on a first endless belt unit in a first feeding direction, and redirecting the cellulose blank structure to a second endless belt unit; feeding the cellulose blank structure on the second endless belt unit in a second feeding direction being at least partly opposite the first feeding direction, where the second endless belt unit alternatingly is longitudinally moved in opposite directions relative to the first endless belt unit and a third endless belt unit, and redirecting the cellulose blank structure to the third endless belt unit; intermittently feeding the cellulose blank structure on the third endless belt unit in a third feeding direction at least partly coinciding with the first feeding direction.

IPC Classes  ?

  • B31B 50/04 - Feeding sheets or blanks
  • B31B 50/00 - Making rigid or semi-rigid containers, e.g. boxes or cartons
  • B31B 50/30 - Folding sheets, blanks or webs around mandrels, e.g. for forming bottoms the mandrels moving
  • B31B 50/74 - Auxiliary operations
  • B31B 100/00 - Rigid or semi-rigid containers made by folding single-piece sheets, blanks or webs
  • B31B 120/00 - Construction of rigid or semi-rigid containers
  • B65H 5/02 - Feeding articles separated from pilesFeeding articles to machines by belts or chains
  • B65H 5/34 - Varying the phase of feed relative to the receiving machine
  • D21J 3/10 - Manufacture of articles by pressing wet fibre pulp, or papier-mâché, between moulds of hollow bodies

6.

DEFORMATION ELEMENT, FORMING MOULD COMPRISING A DEFORMATION ELEMENT AND METHOD FOR FORMING CELLULOSE PRODUCTS

      
Application Number 18875435
Status Pending
Filing Date 2023-06-07
First Publication Date 2025-12-04
Owner PULPAC AB (Sweden)
Inventor
  • Ljungberg, Martin
  • Högblom, Olle
  • Arlerot, Björn
  • Bergfjord, Mathias
  • Sjöstrand Jonsson, Felix
  • Ekstrand, Niklas

Abstract

A deformation element for forming three-dimensional cellulose products from an air-formed cellulose blank structure in a forming mould. The deformation element includes an ejection element arranged for ejecting the cellulose products from the deformation element after forming of the cellulose products in the forming mould. The ejection element is arranged as a protruding body extending in a pressing direction of the deformation element relative to a surrounding surface of the deformation element in a non-compressed state. The ejection element is configured for separating the formed cellulose products from the deformation element upon expansion of the deformation element and/or the ejection element from a compressed state to the non-compressed state after the forming of the cellulose products in the forming mould.

IPC Classes  ?

  • D21J 3/10 - Manufacture of articles by pressing wet fibre pulp, or papier-mâché, between moulds of hollow bodies

7.

EJECTION ELEMENT, FORMING MOULD COMPRISING AN EJECTION ELEMENT AND METHOD FOR FORMING CELLULOSE PRODUCTS

      
Application Number 18875467
Status Pending
Filing Date 2023-06-16
First Publication Date 2025-12-04
Owner PULPAC AB (Sweden)
Inventor
  • Ljungberg, Martin
  • Högblom, Olle
  • Arlerot, Björn
  • Bergfjord, Mathias
  • Sjöstrand Jonsson, Felix
  • Ekstrand, Niklas

Abstract

An ejection element attached to a forming mould for forming three-dimensional cellulose products from an air-formed cellulose blank structure. The ejection element is arranged for ejecting the cellulose products and/or residual parts of the cellulose blank structure from the forming mould after forming of the cellulose products in the forming mould. The ejection element is arranged as a resilient protruding body extending in a pressing direction of the forming mould relative to a surrounding surface of the forming mould in a non-compressed state. The ejection element is configured for separating the formed cellulose products and/or the residual parts of the cellulose blank structure from the forming mould upon expansion of the ejection element from a compressed state to the non-compressed state after the forming of the cellulose products in the forming mould.

IPC Classes  ?

  • D21J 3/10 - Manufacture of articles by pressing wet fibre pulp, or papier-mâché, between moulds of hollow bodies

8.

RADIAL ROTARY

      
Application Number 19263209
Status Pending
Filing Date 2025-07-08
First Publication Date 2025-10-30
Owner PulPac AB (Sweden)
Inventor
  • Högblom, Olle
  • Larsson, Ove
  • Larsson, Linus
  • Guidotti, Edward

Abstract

A method is provided for producing discrete three-dimensional cellulose products from an air-formed cellulose blank structure in a rotary forming mould system. The method includes providing an air-formed cellulose blank structure, wherein the cellulose blank structure is air-formed from cellulose fibres; transporting the air-formed cellulose blank structure to a rotary forming mould system; feeding the air-formed cellulose blank structure to a position between a first mould part and a second mould part, and heating the air-formed cellulose blank structure; forming the three-dimensional cellulose products from the air-formed cellulose blank structure in the rotary forming mould system, by pressing the heated air-formed cellulose blank structure with a forming pressure.

IPC Classes  ?

  • B29C 43/08 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor of articles of definite length, i.e. discrete articles using movable moulds continuously movable with circular movement
  • B29C 43/46 - Rollers
  • B29C 43/52 - Heating or cooling
  • B29K 1/00 - Use of cellulose, modified cellulose or cellulose derivatives, e.g. viscose, as moulding material
  • B31B 50/59 - Shaping sheet material under pressure
  • B31D 5/02 - Multiple-step processes for making three-dimensional articles including pressing

9.

A METHOD FOR FORMING A CELLULOSE PRODUCT IN A DRY-FORMING MOULD SYSTEM

      
Application Number 18855037
Status Pending
Filing Date 2023-03-08
First Publication Date 2025-07-31
Owner PULPAC AB (Sweden)
Inventor
  • Larsson, Ove
  • Ekwall, Peter

Abstract

A method for dry-forming a cellulose product in a dry-forming mould system from an air-formed cellulose blank structure. The dry-forming mould system includes a forming mould having a first mould part and an opposing second mould part arranged to cooperate with each other in a pressing direction upon forming of the cellulose product. The method includes: providing the air-formed cellulose blank structure and arranging the cellulose blank structure in the forming mould between the first mould part and the second mould part, wherein the cellulose blank structure has a moisture content in the range of 4-15 wt %, when arranged between the first mould part and the second mould part; forming the cellulose product by pressing and heating the cellulose blank structure when arranged between the first mould part and the second mould part in a single pressing operation, and heated to a forming temperature in the range of 100-200° C.

IPC Classes  ?

  • D21J 7/00 - Manufacture of hollow articles from fibre suspensions or papier-mâché by deposition of fibres in or on a wire-net mould

10.

Method for producing a cellulose product and a cellulose product

      
Application Number 18722947
Grant Number 12618196
Status In Force
Filing Date 2022-12-15
First Publication Date 2025-02-13
Grant Date 2026-05-05
Owner PULPAC AB (Sweden)
Inventor
  • Larsson, Ove
  • Ljungberg, Martin
  • Guidotti, Edward
  • Arlerot, Björn
  • Högblom, Olle
  • Larsson, Patrik

Abstract

A method for producing a cellulose product from an air-formed cellulose blank structure includes the steps of providing a cellulose-based material to a mill, milling the cellulose-based material, and providing an air-formed cellulose blank structure, wherein the cellulose blank structure is air-formed from cellulose fibres.

IPC Classes  ?

  • D21F 9/00 - Complete machines for making continuous webs of paper
  • D21B 1/06 - Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by dry methods

11.

A PRESSING MODULE FOR FORMING CELLULOSE PRODUCTS AND A METHOD FOR FORMING CELLULOSE PRODUCTS

      
Application Number 18720234
Status Pending
Filing Date 2022-11-17
First Publication Date 2025-02-13
Owner PULPAC AB (Sweden)
Inventor
  • Litten, Neil Anthony
  • Mordue, Adrian
  • Bergfjord, Mattias

Abstract

A pressing module and method for forming cellulose products from an air-formed cellulose blank structure, where the pressing module comprises a forming mould with a first mould part and a second mould part configured for interacting with each other for forming the cellulose products from the air-formed cellulose blank structure in the forming mould. The first mould part and/or the second mould part are movably arranged relative to each other in a pressing direction parallel to a longitudinal direction of the pressing module. The first mould part and the second mould part are at least partly configured for being arranged in an overlapping relationship in the longitudinal direction during forming of the cellulose products. The first mould part comprises a first mould part section and a second mould part section arranged in connection to the first mould part section.

IPC Classes  ?

  • B31F 1/00 - Mechanical deformation without removing material, e.g. in combination with laminating
  • B31B 50/59 - Shaping sheet material under pressure

12.

METHOD FOR MANUFACTURING A CELLULOSE PRODUCT BY A PRESSURE MOLDING APPARATUS, PRESSURE MOULDING APPARATUS AND CELLULOSE

      
Application Number 18899929
Status Pending
Filing Date 2024-09-27
First Publication Date 2025-01-16
Owner PulPac AB (Sweden)
Inventor
  • Larsson, Ove
  • Larsson, Linus

Abstract

The present invention relates to a method of manufacturing a cellulose product having a flat or non-flat product shape by a pressure moulding apparatus comprising a forming mould. The forming mould has a forming surface defining said product shape, The method comprises the steps of: The present invention relates to a method of manufacturing a cellulose product having a flat or non-flat product shape by a pressure moulding apparatus comprising a forming mould. The forming mould has a forming surface defining said product shape, The method comprises the steps of: arranging a cellulose blank containing less than 45 weight percent water in said forming mould; heating said cellulose blank to a forming temperature in the range of 100° C. to 200° C.; and pressing said cellulose blank by means of said forming mould with a forming pressure acting on the cellulose blank across said forming surface, said forming pressure being in the range of 1 MPa to 100 MPa.

IPC Classes  ?

  • B29C 43/10 - Isostatic pressing, i.e. using non-rigid pressure-exerting members against rigid parts or dies
  • B27N 3/04 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
  • B27N 3/08 - Moulding or pressing
  • B27N 5/02 - Hollow articles
  • B29B 13/06 - Conditioning or physical treatment of the material to be shaped by drying
  • B29C 43/00 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor
  • B29C 43/02 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor of articles of definite length, i.e. discrete articles
  • B29C 43/20 - Making multilayered or multicoloured articles
  • B29C 43/36 - Moulds for making articles of definite length, i.e. discrete articles
  • B29C 43/46 - Rollers
  • B29C 43/52 - Heating or cooling
  • B29C 43/58 - Measuring, controlling or regulating
  • B29C 49/00 - Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mouldApparatus therefor
  • B29C 49/04 - Extrusion blow-moulding
  • B29C 49/22 - Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mouldApparatus therefor using multilayered preforms or parisons
  • B29C 49/58 - Blowing means
  • B29C 51/00 - Shaping by thermoforming, e.g. shaping sheets in matched moulds or by deep-drawingApparatus therefor
  • B29C 51/08 - Deep-drawing or matched-mould forming, i.e. using mechanical means only
  • B29C 51/16 - Lining or labelling
  • B29C 51/30 - Moulds
  • B29C 51/42 - Heating or cooling
  • B29K 1/00 - Use of cellulose, modified cellulose or cellulose derivatives, e.g. viscose, as moulding material
  • B29K 311/10 - Natural fibres, e.g. wool, cotton
  • B29L 31/00 - Other particular articles
  • B31B 50/59 - Shaping sheet material under pressure
  • B31B 120/00 - Construction of rigid or semi-rigid containers
  • B65B 43/08 - Forming three-dimensional containers from sheet material
  • D04H 1/732 - 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 fluid current, e.g. air-lay

13.

A METHOD FOR PRODUCING A CELLULOSE PRODUCT AND A CELLULOSE PRODUCT

      
Application Number 18712213
Status Pending
Filing Date 2022-11-18
First Publication Date 2025-01-09
Owner PULPAC AB (Sweden)
Inventor
  • Högblom, Olle
  • Westerberg, Niklas Olov

Abstract

A method for producing a cellulose product from an air-formed cellulose blank structure, wherein the method comprises the steps; providing a cellulose based material to a first mill, providing a barrier chemistry composition to the cellulose based material before the first mill; milling the cellulose based material and the barrier chemistry additive; providing an air-formed cellulose blank structure, wherein the cellulose blank structure is air-formed from cellulose fibres.

IPC Classes  ?

  • D04H 1/492 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres by fluid jet
  • D04H 1/425 - Cellulose series
  • D06C 7/02 - Setting
  • D06H 7/00 - Apparatus or processes for cutting, or otherwise severing, specially adapted for the cutting, or otherwise severing, of textile materials

14.

CELLULOSE PRODUCT TOGGLE PRESSING MODULE AND METHOD FOR USING THE SAME

      
Application Number 18287904
Status Pending
Filing Date 2021-04-15
First Publication Date 2024-08-22
Owner PULPAC AB (Sweden)
Inventor Larsson, Ove

Abstract

A cellulose product toggle pressing module for forming non-flat cellulose products from an air-formed cellulose blank structure. The toggle pressing module includes a toggle press including pressing member movably arranged in a pressing direction, a toggle-mechanism connected to the pressing member, a pressing actuator arrangement connected to the toggle-mechanism, and an electronic control system operatively connected to the pressing actuator arrangement. The toggle pressing module includes a forming mold including a moveable first mold part attached to the pressing member and a second mold part. The electronic control system is configured for controlling operation of the pressing actuator arrangement for driving the pressing member using the toggle-mechanism in the pressing direction and forming the non-flat cellulose product from the cellulose blank structure by pressing the first mold part against the second mold part. Furthermore, the toggle press is installed with the pressing direction of the pressing member arranged primarily in a horizontal direction.

IPC Classes  ?

  • B30B 1/10 - Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by toggle mechanism
  • B30B 11/04 - Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses or tabletting presses using a ram exerting pressure on the material in a moulding space co-operating with a fixed mould
  • B30B 15/00 - Details of, or accessories for, pressesAuxiliary measures in connection with pressing
  • B30B 15/14 - Control arrangements for mechanically-driven presses
  • B30B 15/30 - Feeding material to presses

15.

Method for detecting a liquid composition applied onto a cellulose blank structure with a detection system and a detection system

      
Application Number 18565320
Grant Number 12571728
Status In Force
Filing Date 2022-06-08
First Publication Date 2024-08-01
Grant Date 2026-03-10
Owner PulPac AB (Sweden)
Inventor Högblom, Olle

Abstract

A method for detecting a liquid composition applied onto a cellulose blank structure, with a detection system. The detection system forms part of a cellulose product forming unit for forming cellulose products from the cellulose blank structure. The detection system includes a detection unit connected to a control unit. The method includes: providing the cellulose blank structure and feeding the cellulose blank structure in a feeding direction, where the cellulose blank structure moves through an application area and a detection area, the application area being arranged upstream the detection area; applying the liquid composition onto the cellulose blank structure in the application area; detecting the applied liquid composition in the detection area with the detection unit; analysing a detection result formed by the detection by the control unit, thereby forming an analysis result; and initiating a control action by the control unit upon detection of an analysis result deviating from a pre-determined analysis result.

IPC Classes  ?

  • G01N 21/3577 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing liquids, e.g. polluted water
  • B01L 3/00 - Containers or dishes for laboratory use, e.g. laboratory glasswareDroppers
  • G01J 5/00 - Radiation pyrometry, e.g. infrared or optical thermometry
  • G16C 20/20 - Identification of molecular entities, parts thereof or of chemical compositions

16.

METHOD FOR MANUFACTURING CELLULOSE PRODUCTS AND A PRODUCT FORMING UNIT FOR MANUFACTURING CELLULOSE PRODUCTS

      
Application Number 18285461
Status Pending
Filing Date 2021-04-15
First Publication Date 2024-06-06
Owner PulPac AB (Sweden)
Inventor
  • Larsson, Ove
  • Högblom, Olle
  • Ljungberg, Martin

Abstract

A method for manufacturing non-flat cellulose products from an air-formed cellulose blank structure in a product forming unit. The product forming unit includes a buffering module and a pressing module including one or more forming molds. The method includes providing the cellulose blank structure and feeding the cellulose blank structure to the buffering module; buffering the cellulose blank structure in the buffering module, and feeding the cellulose blank structure from the buffering module to the pressing module; forming cellulose products from the cellulose blank structure in the one or more forming molds by heating the cellulose blank structure to a forming temperature, and pressing the cellulose blank structure with a forming pressure. The cellulose blank structure is continuously fed to the buffering module in a first feeding direction, and intermittently fed from the buffering module in a second feeding direction, wherein the second feeding direction differs from the first feeding direction.

IPC Classes  ?

  • D21J 5/00 - Manufacture of hollow articles by transferring sheets, produced from fibres suspensions or papier-mâché by suction on wire-net moulds, to couch moulds
  • B65H 23/188 - Registering, tensioning, smoothing, or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in connection with running-web

17.

CELLULOSE PRODUCT TOGGLE PRESSING MODULE AND METHOD FOR USING THE SAME

      
Application Number 18285619
Status Pending
Filing Date 2022-04-08
First Publication Date 2024-06-06
Owner PulPac AB (Sweden)
Inventor
  • Högblom, Olle
  • Larsson, Ove
  • Ljungberg, Martin
  • Guidotti, Edward
  • Arlerot, Björn
  • Larsson, Patrik

Abstract

A product forming unit for manufacturing non-flat cellulose products from an air-formed cellulose blank structure (2). The product forming unit includes a blank dry-forming module with a moveable forming wire, a toggle pressing module with a toggle press and a forming mold, and an electronic control system operatively connected to the forming wire and the toggle press. The blank dry-forming module is configured for air-forming the cellulose blank structure onto the forming wire. The toggle press includes a pressing member movably arranged in a pressing direction, a toggle-mechanism drivingly connected to the pressing member, and a pressing actuator arrangement drivingly connected to the toggle-mechanism. The forming mold includes a moveable first mold part attached to the pressing member and a second mold part. The electronic control system is configured for controlling operation of the pressing actuator arrangement for performing pressing operations, which involves driving the pressing member in the pressing direction by the toggle-mechanism, and thereby forming the non-flat cellulose product from the air-formed cellulose blank structure by pressing the first mold part against the second mold part. The electronic control system is configured for intermittently feeding the forming wire between subsequent pressing operations.

IPC Classes  ?

  • B31F 1/00 - Mechanical deformation without removing material, e.g. in combination with laminating
  • B30B 1/16 - Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by toggle mechanism operated by fluid-pressure means
  • B30B 11/00 - Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses or tabletting presses
  • B31B 50/00 - Making rigid or semi-rigid containers, e.g. boxes or cartons
  • B31B 50/10 - Feeding or positioning webs
  • B31B 50/59 - Shaping sheet material under pressure

18.

Method for dry-forming cellulose products from a cellulose blank structure in a product forming unit and a product forming unit

      
Application Number 18285623
Grant Number 12420517
Status In Force
Filing Date 2022-04-08
First Publication Date 2024-06-06
Grant Date 2025-09-23
Owner PulPac AB (Sweden)
Inventor
  • Högblom, Olle
  • Larsson, Ove
  • Ljungberg, Martin
  • Guidotti, Edward
  • Arlerot, Björn
  • Larsson, Patrik

Abstract

Method for dry-forming cellulose products from a cellulose blank structure in a product forming unit. The product forming unit includes a blank dry-forming module and a pressing module. The cellulose blank structure is air-formed in the blank dry-forming module onto a forming wire. The pressing module includes one or more forming molds for forming the cellulose products from the cellulose blank structure in a pressing operation. The method includes arranging the forming wire in a stationary mode during the pressing operation.

IPC Classes  ?

  • B31F 1/00 - Mechanical deformation without removing material, e.g. in combination with laminating
  • B27N 1/00 - Pretreatment of moulding material
  • B27N 3/00 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres
  • B27N 3/04 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
  • B27N 3/18 - Auxiliary operations, e.g. preheating, humidifying, cutting-off
  • B27N 5/00 - Manufacture of non-flat articles
  • B30B 1/10 - Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by toggle mechanism
  • B30B 9/28 - Presses specially adapted for particular purposes for forming shaped articles
  • B30B 15/30 - Feeding material to presses
  • B31B 50/00 - Making rigid or semi-rigid containers, e.g. boxes or cartons
  • B31B 50/10 - Feeding or positioning webs
  • B31B 50/59 - Shaping sheet material under pressure

19.

Method for dry-forming a cellulose bottle, cellulose bottle forming unit and cellulose bottle

      
Application Number 18235227
Grant Number 12667996
Status In Force
Filing Date 2023-08-17
First Publication Date 2024-03-28
Grant Date 2026-06-30
Owner PulPac AB (Sweden)
Inventor Larsson, Ove

Abstract

A bottle forming unit and method for dry-forming a cellulose bottle from an air-formed cellulose blank structure in a bottle forming unit. The dry-formed cellulose bottle comprises a neck portion, a closed bottom portion, and a mid-portion arranged between the closed bottom portion and the neck portion. The mid-portion is arranged in fluid communication with the neck portion. The dry-formed cellulose blank structure is shaped into a shaped cellulose blank structure, where the shaped cellulose blank structure has a tube-like configuration with an inner surface and an outer surface. A first section of the shaped cellulose blank structure is fed to a first forming mould and a semi-closed bottom portion of the cellulose bottle is formed from the first section in the first forming mould, simultaneously with forming the neck portion of a directly preceding cellulose bottle from the first section in the first forming mould. A following second section of the shaped cellulose blank structure is fed to the first forming mould and the neck portion of the cellulose bottle is formed from the second section in the first forming mould, simultaneously with forming a semi-closed bottom portion of a directly following cellulose bottle from the second section in the first forming mould.

IPC Classes  ?

20.

Method for dry-forming a cellulose bottle, cellulose bottle forming unit and cellulose bottle

      
Application Number 18373187
Grant Number 12629911
Status In Force
Filing Date 2023-09-26
First Publication Date 2024-03-28
Grant Date 2026-05-19
Owner PulPac AB (Sweden)
Inventor Larsson, Ove

Abstract

A bottle forming unit and method for dry-forming a cellulose bottle from an air-formed cellulose blank structure in a bottle forming unit is provided. A first section of the shaped cellulose blank structure is fed to a first forming mould and a semi-closed bottom portion of the cellulose bottle is formed from the first section in the first forming mould, simultaneously with forming the neck portion of a directly preceding cellulose bottle from the first section in the first forming mould. A following second section of the shaped cellulose blank structure is fed to the first forming mould and the neck portion of the cellulose bottle is formed from the second section in the first forming mould, simultaneously with forming a semi-closed bottom portion of a directly following cellulose bottle from the second section in the first forming mould.

IPC Classes  ?

  • B31B 50/59 - Shaping sheet material under pressure
  • B65D 1/02 - Bottles or similar containers with necks or like restricted apertures, designed for pouring contents

21.

Spoon

      
Application Number 29834851
Grant Number D1019291
Status In Force
Filing Date 2022-04-14
First Publication Date 2024-03-26
Grant Date 2024-03-26
Owner PULPAC AB (Sweden)
Inventor Jonsson, Felix Sjöstrand

22.

Method for forming cellulose products in a forming mould system from a cellulose blank structure, a forming mould system, and a cellulose blank structure

      
Application Number 18272464
Grant Number 12515393
Status In Force
Filing Date 2022-01-05
First Publication Date 2024-03-07
Grant Date 2026-01-06
Owner PulPac AB (Sweden)
Inventor
  • Larsson, Ove
  • Guidotti, Edward
  • Högblom, Olle

Abstract

A method for forming cellulose products in a mould system from an air-formed cellulose blank structure, where the forming mould system comprises a first mould part and a second mould part. The method comprises the steps: providing the cellulose blank structure, and defining one or more product sections and a residual section; compressing at least a portion of the residual section to a first degree of compression higher than a degree of compression of the one or more product sections; feeding the cellulose blank structure in a feeding direction to a forming position in the forming mould system, where in the forming position each product section is arranged between a corresponding first mould part and second mould part; forming the cellulose products from the cellulose blank structure between the first mould part and the second mould part by heating the cellulose blank structure and pressing the cellulose blank structure.

IPC Classes  ?

  • B29C 51/22 - Thermoforming apparatus having movable moulds or mould parts rotatable about an axis
  • B29C 51/00 - Shaping by thermoforming, e.g. shaping sheets in matched moulds or by deep-drawingApparatus therefor
  • B29C 51/08 - Deep-drawing or matched-mould forming, i.e. using mechanical means only
  • B29K 1/00 - Use of cellulose, modified cellulose or cellulose derivatives, e.g. viscose, as moulding material

23.

METHOD FOR MANUFACTURING A CELLULOSE PRODUCT, CELLULOSE PRODUCT FORMING APPARATUS AND CELLULOSE PRODUCT

      
Application Number 18388627
Status Pending
Filing Date 2023-11-10
First Publication Date 2024-03-07
Owner PulPac AB (Sweden)
Inventor
  • Larsson, Ove
  • Larsson, Linus

Abstract

A method for manufacturing a cellulose product, comprising the steps: dry forming a cellulose blank in a dry forming unit; arranging the cellulose blank in a forming mould; heating the cellulose blank to a forming temperature in the range of 100° C. to 200° C.; and pressing the cellulose blank in the forming mould with a forming pressure of at least 1 MPa.

IPC Classes  ?

  • B29C 43/10 - Isostatic pressing, i.e. using non-rigid pressure-exerting members against rigid parts or dies
  • B27N 3/04 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
  • B27N 3/08 - Moulding or pressing
  • B27N 5/02 - Hollow articles
  • B29B 13/06 - Conditioning or physical treatment of the material to be shaped by drying
  • B29C 43/00 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor
  • B29C 43/02 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor of articles of definite length, i.e. discrete articles
  • B29C 43/20 - Making multilayered or multicoloured articles
  • B29C 43/36 - Moulds for making articles of definite length, i.e. discrete articles
  • B29C 43/46 - Rollers
  • B29C 43/52 - Heating or cooling
  • B29C 43/58 - Measuring, controlling or regulating
  • B29C 49/00 - Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mouldApparatus therefor
  • B29C 49/22 - Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mouldApparatus therefor using multilayered preforms or parisons
  • B29C 51/00 - Shaping by thermoforming, e.g. shaping sheets in matched moulds or by deep-drawingApparatus therefor
  • B29C 51/08 - Deep-drawing or matched-mould forming, i.e. using mechanical means only
  • B29C 51/30 - Moulds
  • B29C 51/42 - Heating or cooling
  • B31B 50/59 - Shaping sheet material under pressure
  • B65B 43/08 - Forming three-dimensional containers from sheet material
  • D04H 1/732 - 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 fluid current, e.g. air-lay

24.

METHOD FOR MANUFACTURING A CELLULOSE PRODUCT, CELLULOSE PRODUCT FORMING APPARATUS AND CELLULOSE PRODUCT

      
Application Number 18388165
Status Pending
Filing Date 2023-11-08
First Publication Date 2024-02-29
Owner PulPac AB (Sweden)
Inventor
  • Larsson, Ove
  • Larsson, Linus

Abstract

A method for manufacturing a cellulose product, comprising the steps: dry forming a cellulose blank in a dry forming unit; arranging the cellulose blank in a forming mould; heating the cellulose blank to a forming temperature in the range of 100° C. to 200° C.; and pressing the cellulose blank in the forming mould with a forming pressure of at least 1 MPa.

IPC Classes  ?

  • B29C 43/10 - Isostatic pressing, i.e. using non-rigid pressure-exerting members against rigid parts or dies
  • B27N 3/04 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
  • B27N 3/08 - Moulding or pressing
  • B27N 5/02 - Hollow articles
  • B29B 13/06 - Conditioning or physical treatment of the material to be shaped by drying
  • B29C 43/00 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor
  • B29C 43/02 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor of articles of definite length, i.e. discrete articles
  • B29C 43/20 - Making multilayered or multicoloured articles
  • B29C 43/36 - Moulds for making articles of definite length, i.e. discrete articles
  • B29C 43/46 - Rollers
  • B29C 43/52 - Heating or cooling
  • B29C 43/58 - Measuring, controlling or regulating
  • B29C 49/00 - Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mouldApparatus therefor
  • B29C 49/22 - Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mouldApparatus therefor using multilayered preforms or parisons
  • B29C 51/00 - Shaping by thermoforming, e.g. shaping sheets in matched moulds or by deep-drawingApparatus therefor
  • B29C 51/08 - Deep-drawing or matched-mould forming, i.e. using mechanical means only
  • B29C 51/30 - Moulds
  • B29C 51/42 - Heating or cooling
  • B31B 50/59 - Shaping sheet material under pressure
  • B65B 43/08 - Forming three-dimensional containers from sheet material
  • D04H 1/732 - 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 fluid current, e.g. air-lay

25.

Method for edge-forming cellulose products in a forming mould system, and a forming mould system for forming edges of cellulose products

      
Application Number 18034563
Grant Number 12208591
Status In Force
Filing Date 2021-10-12
First Publication Date 2024-01-11
Grant Date 2025-01-28
Owner PULPAC AB (Sweden)
Inventor
  • Ljungberg, Martin
  • Bergfjord, Mathias

Abstract

A method and system for edge-forming cellulose products from an air-formed cellulose blank structure. The system comprises a first mould part having an edge-forming device with a protruding element configured for compacting and separating fibres of the cellulose blank structure and a second mould part arranged for cooperating with each other. The edge-forming device is movably arranged in relation to a base structure of the first mould part, and is adapted for interacting with a pressure member arranged in the base structure. The method includes the steps: providing the air-formed cellulose blank structure, and forming a compacted edge structure of the cellulose products by separating fibres of the cellulose blank structure with the protruding element, applying an edge-forming temperature, and compacting the cellulose blank structure by applying an edge-forming pressure onto the cellulose blank structure between the protruding element and the second mould part.

IPC Classes  ?

  • B31B 50/14 - Cutting, e.g. perforating, punching, slitting or trimming
  • B31B 50/22 - NotchingTrimming edges of flaps
  • B31D 5/02 - Multiple-step processes for making three-dimensional articles including pressing

26.

Method for manufacturing a cellulose product, cellulose product forming apparatus and cellulose product

      
Application Number 18231018
Grant Number 12134215
Status In Force
Filing Date 2023-08-07
First Publication Date 2023-11-23
Grant Date 2024-11-05
Owner PulPac AB (Sweden)
Inventor
  • Larsson, Ove
  • Larsson, Linus

Abstract

A method for manufacturing a cellulose product, comprising the steps: dry forming a cellulose blank in a dry forming unit; arranging the cellulose blank in a forming mould; heating the cellulose blank to a forming temperature in the range of 100° C. to 200° C.; and pressing the cellulose blank in the forming mould with a forming pressure of at least 1 MPa.

IPC Classes  ?

  • B29C 43/10 - Isostatic pressing, i.e. using non-rigid pressure-exerting members against rigid parts or dies
  • B27N 3/04 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
  • B27N 3/08 - Moulding or pressing
  • B27N 5/02 - Hollow articles
  • B29B 13/06 - Conditioning or physical treatment of the material to be shaped by drying
  • B29C 43/00 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor
  • B29C 43/02 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor of articles of definite length, i.e. discrete articles
  • B29C 43/20 - Making multilayered or multicoloured articles
  • B29C 43/36 - Moulds for making articles of definite length, i.e. discrete articles
  • B29C 43/46 - Rollers
  • B29C 43/52 - Heating or cooling
  • B29C 43/58 - Measuring, controlling or regulating
  • B29C 49/00 - Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mouldApparatus therefor
  • B29C 49/22 - Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mouldApparatus therefor using multilayered preforms or parisons
  • B29C 51/00 - Shaping by thermoforming, e.g. shaping sheets in matched moulds or by deep-drawingApparatus therefor
  • B29C 51/08 - Deep-drawing or matched-mould forming, i.e. using mechanical means only
  • B29C 51/30 - Moulds
  • B29C 51/42 - Heating or cooling
  • B31B 50/59 - Shaping sheet material under pressure
  • B65B 43/08 - Forming three-dimensional containers from sheet material
  • D04H 1/732 - 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 fluid current, e.g. air-lay
  • B29C 49/04 - Extrusion blow-moulding
  • B29C 49/58 - Blowing means
  • B29C 51/16 - Lining or labelling
  • B29K 1/00 - Use of cellulose, modified cellulose or cellulose derivatives, e.g. viscose, as moulding material
  • B29K 311/10 - Natural fibres, e.g. wool, cotton
  • B29L 31/00 - Other particular articles
  • B31B 120/00 - Construction of rigid or semi-rigid containers

27.

Forming mould system and a method for forming a cellulose product in a forming mould system

      
Application Number 17795795
Grant Number 12415330
Status In Force
Filing Date 2021-02-02
First Publication Date 2023-11-09
Grant Date 2025-09-16
Owner PulPac AB (Sweden)
Inventor
  • Ljungberg, Martin
  • Arlerot, Björn

Abstract

a). The disclosure further relates to a method for forming a cellulose product (1) from an air-formed cellulose blank structure (2) in a forming mould system (3).

IPC Classes  ?

  • B29C 33/22 - Opening, closing or clamping by rectilinear movement
  • B29C 43/00 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor
  • B29C 43/10 - Isostatic pressing, i.e. using non-rigid pressure-exerting members against rigid parts or dies
  • B29C 43/36 - Moulds for making articles of definite length, i.e. discrete articles
  • B29C 43/52 - Heating or cooling
  • B31D 5/02 - Multiple-step processes for making three-dimensional articles including pressing
  • B31F 1/00 - Mechanical deformation without removing material, e.g. in combination with laminating
  • D21J 3/00 - Manufacture of articles by pressing wet fibre pulp, or papier-mâché, between moulds
  • B29K 1/00 - Use of cellulose, modified cellulose or cellulose derivatives, e.g. viscose, as moulding material
  • B29K 105/04 - Condition, form or state of moulded material cellular or porous
  • B31B 50/59 - Shaping sheet material under pressure

28.

Multi-Cavity Forming Mould System and a Method for Forming Cellulose Products in a Multi-Cavity Forming Mould System

      
Application Number 18041940
Status Pending
Filing Date 2021-08-20
First Publication Date 2023-10-12
Owner PulPac AB (Sweden)
Inventor
  • Larsson, Ove
  • Högblom, Olle

Abstract

A multi-cavity forming mould system for forming a plurality of discrete three-dimensional cellulose products from an air-formed cellulose blank structure. The forming mould system includes a first mould part and a second mould part arranged for cooperating with each other during forming of the cellulose products. The first mould part includes a plurality of first forming elements and the second mould part comprises a plurality of corresponding second forming elements movably arranged in relation to a base structure of the second mould part. The forming mould system is configured for establishing a plurality of forming cavities for the cellulose blank structure between each first forming element and corresponding second forming element during formation of the cellulose products. Each second forming element is arranged for interacting with a pressure member arranged in the base structure, where the pressure member is configured for establishing a forming pressure in each forming cavity onto the cellulose blank structure during formation of the cellulose products.

IPC Classes  ?

  • B27N 5/02 - Hollow articles
  • B27N 3/20 - Moulding or pressing characterised by using platen-presses
  • B27N 1/00 - Pretreatment of moulding material
  • B27N 3/04 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres

29.

Method for producing a cellulose product

      
Application Number 18210533
Grant Number 12138830
Status In Force
Filing Date 2023-06-15
First Publication Date 2023-10-12
Grant Date 2024-11-12
Owner PulPac AB (Sweden)
Inventor
  • Larsson, Linus
  • Larsson, Ove

Abstract

A method for producing a cellulose product from a multi-layer cellulose blank structure, wherein the method comprises the steps; forming the multi-layer cellulose blank structure from at least a first layer of dry-formed cellulose fibres and a second layer of a cellulose fibre web structure, through arranging the at least first layer and second layer in a superimposed relationship to each other and in the superimposed relationship arranging the at least first layer and second layer in contact with each other; arranging the multi-layer cellulose blank structure in a forming mould; heating the multi-layer cellulose blank structure to a forming temperature in the range of 100° C. to 300° C., and forming the cellulose product from the multi-layer cellulose blank structure in the forming mould, by pressing the heated multi-layer cellulose blank structure with an isostatic forming pressure of at least 1 MPa, preferably 4-20 MPa, wherein the multi-layer cellulose blank structure is shaped into a two-dimensional or three-dimensional fibre composite structure having a single-layer configuration.

IPC Classes  ?

  • B29C 43/20 - Making multilayered or multicoloured articles
  • B29C 43/18 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles
  • B29C 51/00 - Shaping by thermoforming, e.g. shaping sheets in matched moulds or by deep-drawingApparatus therefor
  • B29K 1/00 - Use of cellulose, modified cellulose or cellulose derivatives, e.g. viscose, as moulding material
  • B29K 23/00 - Use of polyalkenes as moulding material
  • B29K 67/00 - Use of polyesters as moulding material
  • B29K 77/00 - Use of polyamides, e.g. polyesteramides, as moulding material
  • B29K 101/12 - Thermoplastic materials
  • B29K 309/00 - Use of inorganic materials not provided for in groups , as reinforcement

30.

A METHOD FOR PRODUCING CELLULOSE PRODUCTS AND A ROTARY FORMING MOULD SYSTEM

      
Application Number 17636988
Status Pending
Filing Date 2020-08-27
First Publication Date 2022-11-10
Owner PulPac AB (Sweden)
Inventor
  • Larsson, Ove
  • Larsson, Linus
  • Ekstrand, Niklas

Abstract

A method for forming cellulose products from an air-formed cellulose blank having a base and one or more forming moulds attached to the base which is arranged to rotate around a rotational axis, wherein each forming mould comprises a first mould part Wand a corresponding second mould part wherein during rotational movement of the base around the rotational axis each first mould part is arranged to engage with its corresponding second mould part in a pressing direction. The method comprises arranging the cellulose blank in a position between a first mould and the second mould forming the cellulose products in the rotary forming mould system, by applying a forming pressure between the first mould and its corresponding second mould through an engaging movement of the first mould in relation to its corresponding second mould in the pressing direction, wherein the forming moulds are rotating with the base around the rotational axis.

IPC Classes  ?

  • B29C 43/08 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor of articles of definite length, i.e. discrete articles using movable moulds continuously movable with circular movement
  • B29C 43/10 - Isostatic pressing, i.e. using non-rigid pressure-exerting members against rigid parts or dies
  • B29C 43/36 - Moulds for making articles of definite length, i.e. discrete articles
  • B29C 43/40 - Moulds for making articles of definite length, i.e. discrete articles with means for cutting the article
  • B29C 43/52 - Heating or cooling

31.

Method for producing a cellulose product and a cellulose product

      
Application Number 17623820
Grant Number 12312745
Status In Force
Filing Date 2020-06-26
First Publication Date 2022-08-11
Grant Date 2025-05-27
Owner PULPAC AB (Sweden)
Inventor
  • Guidotti, Edward
  • Jabbari, Mostafa

Abstract

F) of at least 1 MPa, preferably 4-20 MPa.

IPC Classes  ?

  • D21H 19/82 - Paper comprising more than one coating superposed
  • B31B 50/14 - Cutting, e.g. perforating, punching, slitting or trimming
  • B31B 50/59 - Shaping sheet material under pressure
  • B31B 120/00 - Construction of rigid or semi-rigid containers
  • D04H 1/26 - Wood pulp
  • D04H 1/425 - Cellulose series
  • D04H 1/732 - 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 fluid current, e.g. air-lay
  • D21H 19/16 - Coatings without pigments applied in a form other than the aqueous solution defined in group comprising curable or polymerisable compounds
  • D21H 19/20 - Coatings without pigments applied in a form other than the aqueous solution defined in group comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
  • D21H 21/16 - Sizing or water-repelling agents

32.

Method for manufacturing a cellulose product, cellulose product forming apparatus and cellulose product

      
Application Number 17716909
Grant Number 11766810
Status In Force
Filing Date 2022-04-08
First Publication Date 2022-07-28
Grant Date 2023-09-26
Owner PULPAC AB (Sweden)
Inventor
  • Larsson, Ove
  • Larsson, Linus

Abstract

A method for manufacturing a cellulose product, comprising the steps: dry forming a cellulose blank in a dry forming unit; arranging the cellulose blank in a forming mould; heating the cellulose blank to a forming temperature in the range of 100° C. to 200° C.; and pressing the cellulose blank in the forming mould with a forming pressure of at least 1 MPa.

IPC Classes  ?

  • B29C 43/10 - Isostatic pressing, i.e. using non-rigid pressure-exerting members against rigid parts or dies
  • B29C 51/42 - Heating or cooling
  • B29C 49/00 - Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mouldApparatus therefor
  • B29C 43/02 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor of articles of definite length, i.e. discrete articles
  • B29C 51/00 - Shaping by thermoforming, e.g. shaping sheets in matched moulds or by deep-drawingApparatus therefor
  • B27N 3/04 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
  • B27N 3/08 - Moulding or pressing
  • B27N 5/02 - Hollow articles
  • D04H 1/732 - 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 fluid current, e.g. air-lay
  • B65B 43/08 - Forming three-dimensional containers from sheet material
  • B31B 50/59 - Shaping sheet material under pressure
  • B29C 43/36 - Moulds for making articles of definite length, i.e. discrete articles
  • B29C 43/52 - Heating or cooling
  • B29C 49/22 - Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mouldApparatus therefor using multilayered preforms or parisons
  • B29C 43/20 - Making multilayered or multicoloured articles
  • B29C 51/08 - Deep-drawing or matched-mould forming, i.e. using mechanical means only
  • B29C 43/46 - Rollers
  • B29B 13/06 - Conditioning or physical treatment of the material to be shaped by drying
  • B29C 43/00 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor
  • B29C 51/30 - Moulds
  • B29C 43/58 - Measuring, controlling or regulating
  • B29K 1/00 - Use of cellulose, modified cellulose or cellulose derivatives, e.g. viscose, as moulding material
  • B29C 49/04 - Extrusion blow-moulding
  • B29K 311/10 - Natural fibres, e.g. wool, cotton
  • B29C 49/58 - Blowing means
  • B29C 51/16 - Lining or labelling
  • B31B 120/00 - Construction of rigid or semi-rigid containers
  • B29L 31/00 - Other particular articles

33.

Method for manufacturing a cellulose product by a pressure moulding apparatus, pressure moulding apparatus and cellulose product

      
Application Number 17716908
Grant Number 12134214
Status In Force
Filing Date 2022-04-08
First Publication Date 2022-07-21
Grant Date 2024-11-05
Owner PulPac AB (Sweden)
Inventor
  • Larsson, Ove
  • Larsson, Linus

Abstract

The present invention relates to a method of manufacturing a cellulose product having a flat or non-flat product shape by a pressure moulding apparatus comprising a forming mould. The forming mould has a forming surface defining said product shape, The method comprises the steps of: arranging a cellulose blank containing less than 45 weight percent water in said forming mould; heating said cellulose blank to a forming temperature in the range of 100° C. to 200° C.; and pressing said cellulose blank by means of said forming mould with a forming pressure acting on the cellulose blank across said forming surface, said forming pressure being in the range of 1 MPa to 100 MPa.

IPC Classes  ?

  • B29C 43/10 - Isostatic pressing, i.e. using non-rigid pressure-exerting members against rigid parts or dies
  • B27N 3/04 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
  • B27N 3/08 - Moulding or pressing
  • B27N 5/02 - Hollow articles
  • B29B 13/06 - Conditioning or physical treatment of the material to be shaped by drying
  • B29C 43/00 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor
  • B29C 43/02 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor of articles of definite length, i.e. discrete articles
  • B29C 43/20 - Making multilayered or multicoloured articles
  • B29C 43/36 - Moulds for making articles of definite length, i.e. discrete articles
  • B29C 43/46 - Rollers
  • B29C 43/52 - Heating or cooling
  • B29C 43/58 - Measuring, controlling or regulating
  • B29C 49/00 - Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mouldApparatus therefor
  • B29C 49/22 - Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mouldApparatus therefor using multilayered preforms or parisons
  • B29C 51/00 - Shaping by thermoforming, e.g. shaping sheets in matched moulds or by deep-drawingApparatus therefor
  • B29C 51/08 - Deep-drawing or matched-mould forming, i.e. using mechanical means only
  • B29C 51/30 - Moulds
  • B29C 51/42 - Heating or cooling
  • B31B 50/59 - Shaping sheet material under pressure
  • B65B 43/08 - Forming three-dimensional containers from sheet material
  • D04H 1/732 - 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 fluid current, e.g. air-lay
  • B29C 49/04 - Extrusion blow-moulding
  • B29C 49/58 - Blowing means
  • B29C 51/16 - Lining or labelling
  • B29K 1/00 - Use of cellulose, modified cellulose or cellulose derivatives, e.g. viscose, as moulding material
  • B29K 311/10 - Natural fibres, e.g. wool, cotton
  • B29L 31/00 - Other particular articles
  • B31B 120/00 - Construction of rigid or semi-rigid containers

34.

RADIAL ROTARY

      
Application Number 17604887
Status Pending
Filing Date 2020-05-14
First Publication Date 2022-06-09
Owner PulPac AB (Sweden)
Inventor
  • Högblom, Olle
  • Larsson, Ove
  • Larsson, Linus
  • Guidotti, Edward

Abstract

A method is provided for producing discrete three-dimensional cellulose products from an air-formed cellulose blank structure in a rotary forming mould system. The method includes providing an air-formed cellulose blank structure, wherein the cellulose blank structure is air-formed from cellulose fibres; transporting the air-formed cellulose blank structure to a the rotary forming mould system; feeding the air-formed cellulose blank structure to a position between a first mould part and a second mould part, and heating the air-formed cellulose blank structure; forming the three-dimensional cellulose products from the air-formed cellulose blank structure in the rotary forming mould system, by pressing the heated air-formed cellulose blank structure with a forming pressure.

IPC Classes  ?

  • B29C 43/08 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor of articles of definite length, i.e. discrete articles using movable moulds continuously movable with circular movement
  • B31D 5/02 - Multiple-step processes for making three-dimensional articles including pressing
  • B31B 50/59 - Shaping sheet material under pressure
  • B29C 43/52 - Heating or cooling
  • B29C 43/46 - Rollers

35.

Method for manufacturing a cellulose product, cellulose product forming apparatus and cellulose product

      
Application Number 17242833
Grant Number 11839999
Status In Force
Filing Date 2021-04-28
First Publication Date 2021-08-12
Grant Date 2023-12-12
Owner PulPac AB (Sweden)
Inventor
  • Larsson, Ove
  • Larsson, Linus

Abstract

A method for manufacturing a cellulose product, comprising the steps: dry forming a cellulose blank in a dry forming unit; arranging the cellulose blank in a forming mould; heating the cellulose blank to a forming temperature in the range of 100° C. to 200° C.; and pressing the cellulose blank in the forming mould with a forming pressure of at least 1 MPa.

IPC Classes  ?

  • B29C 51/08 - Deep-drawing or matched-mould forming, i.e. using mechanical means only
  • B29C 51/00 - Shaping by thermoforming, e.g. shaping sheets in matched moulds or by deep-drawingApparatus therefor
  • B27N 3/04 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
  • B27N 3/08 - Moulding or pressing
  • B27N 5/02 - Hollow articles
  • D04H 1/732 - 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 fluid current, e.g. air-lay
  • B65B 43/08 - Forming three-dimensional containers from sheet material
  • B29C 43/00 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor
  • B29C 43/10 - Isostatic pressing, i.e. using non-rigid pressure-exerting members against rigid parts or dies
  • B29C 51/42 - Heating or cooling
  • B29C 49/00 - Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mouldApparatus therefor
  • B29C 49/22 - Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mouldApparatus therefor using multilayered preforms or parisons
  • B29C 43/20 - Making multilayered or multicoloured articles
  • B29C 43/46 - Rollers
  • B29C 43/02 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor of articles of definite length, i.e. discrete articles
  • B29B 13/06 - Conditioning or physical treatment of the material to be shaped by drying
  • B31B 50/59 - Shaping sheet material under pressure
  • B29C 51/30 - Moulds
  • B29C 43/36 - Moulds for making articles of definite length, i.e. discrete articles
  • B29C 43/52 - Heating or cooling
  • B29C 43/58 - Measuring, controlling or regulating
  • B29K 1/00 - Use of cellulose, modified cellulose or cellulose derivatives, e.g. viscose, as moulding material
  • B29C 49/04 - Extrusion blow-moulding
  • B29K 311/10 - Natural fibres, e.g. wool, cotton
  • B29C 49/58 - Blowing means
  • B29C 51/16 - Lining or labelling
  • B31B 120/00 - Construction of rigid or semi-rigid containers
  • B29L 31/00 - Other particular articles

36.

Method for producing a cellulose product

      
Application Number 17049842
Grant Number 11717993
Status In Force
Filing Date 2019-04-17
First Publication Date 2021-03-11
Grant Date 2023-08-08
Owner PulPac AB (Sweden)
Inventor
  • Larsson, Linus
  • Larsson, Ove

Abstract

A method for producing a cellulose product from a multi-layer cellulose blank structure, wherein the method comprises the steps; forming the multi-layer cellulose blank structure from at least a first layer of dry-formed cellulose fibres and a second layer of a cellulose fibre web structure, through arranging the at least first layer and second layer in a superimposed relationship to each other and in the superimposed relationship arranging the at least first layer and second layer in contact with each other; arranging the multi-layer cellulose blank structure in a forming mould; heating the multi-layer cellulose blank structure to a forming temperature in the range of 100° C. to 300° C., and forming the cellulose product from the multi-layer cellulose blank structure in the forming mould, by pressing the heated multi-layer cellulose blank structure with an isostatic forming pressure of at least 1 MPa, preferably 4-20 MPa, wherein the multi-layer cellulose blank structure is shaped into a two-dimensional or three-dimensional fibre composite structure having a single-layer configuration.

IPC Classes  ?

  • B29C 43/18 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles
  • B29C 43/20 - Making multilayered or multicoloured articles
  • B29C 51/00 - Shaping by thermoforming, e.g. shaping sheets in matched moulds or by deep-drawingApparatus therefor
  • B29K 1/00 - Use of cellulose, modified cellulose or cellulose derivatives, e.g. viscose, as moulding material
  • B29K 23/00 - Use of polyalkenes as moulding material
  • B29K 67/00 - Use of polyesters as moulding material
  • B29K 77/00 - Use of polyamides, e.g. polyesteramides, as moulding material
  • B29K 101/12 - Thermoplastic materials
  • B29K 309/00 - Use of inorganic materials not provided for in groups , as reinforcement

37.

Method for manufacturing a cellulose product by a pressure moulding apparatus

      
Application Number 16085456
Grant Number 11407149
Status In Force
Filing Date 2017-03-16
First Publication Date 2019-04-25
Grant Date 2022-08-09
Owner PulPac AB (Sweden)
Inventor
  • Larsson, Ove
  • Larsson, Linus

Abstract

The present invention relates to a method of manufacturing a cellulose product having a flat or non-flat product shape by a pressure moulding apparatus comprising a forming mould. The forming mould has a forming surface defining said product shape, The method comprises the steps of: arranging a cellulose blank containing less than 45 weight percent water in said forming mould; heating said cellulose blank to a forming temperature in the range of 100° C. to 200° C.; and pressing said cellulose blank by means of said forming mould with a forming pressure acting on the cellulose blank across said forming surface, said forming pressure being in the range of 1 MPa to 100 MPa.

IPC Classes  ?

  • B29C 43/10 - Isostatic pressing, i.e. using non-rigid pressure-exerting members against rigid parts or dies
  • B29C 51/42 - Heating or cooling
  • B29C 49/00 - Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mouldApparatus therefor
  • B29C 49/22 - Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mouldApparatus therefor using multilayered preforms or parisons
  • B29C 51/08 - Deep-drawing or matched-mould forming, i.e. using mechanical means only
  • B29C 43/20 - Making multilayered or multicoloured articles
  • B29C 43/46 - Rollers
  • B29C 43/02 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor of articles of definite length, i.e. discrete articles
  • B29C 51/00 - Shaping by thermoforming, e.g. shaping sheets in matched moulds or by deep-drawingApparatus therefor
  • B29B 13/06 - Conditioning or physical treatment of the material to be shaped by drying
  • B27N 3/04 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
  • B27N 3/08 - Moulding or pressing
  • B27N 5/02 - Hollow articles
  • D04H 1/732 - 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 fluid current, e.g. air-lay
  • B65B 43/08 - Forming three-dimensional containers from sheet material
  • B31B 50/59 - Shaping sheet material under pressure
  • B29C 43/00 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor
  • B29C 51/30 - Moulds
  • B29C 43/36 - Moulds for making articles of definite length, i.e. discrete articles
  • B29C 43/52 - Heating or cooling
  • B29C 43/58 - Measuring, controlling or regulating
  • B29K 1/00 - Use of cellulose, modified cellulose or cellulose derivatives, e.g. viscose, as moulding material
  • B29C 49/04 - Extrusion blow-moulding
  • B29K 311/10 - Natural fibres, e.g. wool, cotton
  • B29C 49/58 - Blowing means
  • B29C 51/16 - Lining or labelling
  • B31B 120/00 - Construction of rigid or semi-rigid containers
  • B29L 31/00 - Other particular articles

38.

Method for manufacturing a cellulose product, cellulose product forming apparatus and cellulose product

      
Application Number 16085466
Grant Number 11020883
Status In Force
Filing Date 2017-03-16
First Publication Date 2019-03-07
Grant Date 2021-06-01
Owner PulPac AB (Sweden)
Inventor
  • Larsson, Ove
  • Larsson, Linus

Abstract

A method for manufacturing a cellulose product, comprising the steps: dry forming a cellulose blank in a dry forming unit; arranging the cellulose blank in a forming mould; heating the cellulose blank to a forming temperature in the range of 100° C. to 200° C.; and pressing the cellulose blank in the forming mould with a forming pressure of at least 1 MPa.

IPC Classes  ?

  • B29C 51/08 - Deep-drawing or matched-mould forming, i.e. using mechanical means only
  • B27N 3/04 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
  • B27N 3/08 - Moulding or pressing
  • B27N 5/02 - Hollow articles
  • D04H 1/732 - 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 fluid current, e.g. air-lay
  • B29C 43/00 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor
  • B65B 43/08 - Forming three-dimensional containers from sheet material
  • B29C 43/10 - Isostatic pressing, i.e. using non-rigid pressure-exerting members against rigid parts or dies
  • B29C 51/42 - Heating or cooling
  • B29C 49/00 - Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mouldApparatus therefor
  • B29C 49/22 - Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mouldApparatus therefor using multilayered preforms or parisons
  • B29C 43/20 - Making multilayered or multicoloured articles
  • B29C 43/46 - Rollers
  • B29C 43/02 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor of articles of definite length, i.e. discrete articles
  • B29C 51/00 - Shaping by thermoforming, e.g. shaping sheets in matched moulds or by deep-drawingApparatus therefor
  • B29B 13/06 - Conditioning or physical treatment of the material to be shaped by drying
  • B31B 50/59 - Shaping sheet material under pressure
  • B29C 51/30 - Moulds
  • B29C 43/36 - Moulds for making articles of definite length, i.e. discrete articles
  • B29C 43/52 - Heating or cooling
  • B29C 43/58 - Measuring, controlling or regulating
  • B29K 1/00 - Use of cellulose, modified cellulose or cellulose derivatives, e.g. viscose, as moulding material
  • B29C 49/04 - Extrusion blow-moulding
  • B29K 311/10 - Natural fibres, e.g. wool, cotton
  • B29C 49/58 - Blowing means
  • B29C 51/16 - Lining or labelling
  • B31B 120/00 - Construction of rigid or semi-rigid containers
  • B29L 31/00 - Other particular articles