A screen assembly (40) formed with a truncated cone may include a plurality of spaced screen elements defining slots of differing predetermined widths. The panel or panels of the screen assembly (40) may extend from the first end (46) to the second end (44) of the truncated cone, and each panel may be formed from a single piece of screen material secured to one or more adjoining panels to form the truncated cone. The plurality of screen elements may include a first plurality of screen elements defining a first plurality of slots having a first predetermined width, and a second plurality of screen elements defining a second plurality of slots having a different, second predetermined width. Different combinations of slot widths and configurations may be provided to vary the performance of the assembly, and substantially horizontal seams in panels may be omitted in some embodiments.
The invention relates to a novel sieve box with adjustable nozzles (53) that significantly increase the usage life of the sieve screen (30) by properly aligning the nozzles (53) to the screen (30). In this regard, the translational and rotational degrees of freedom of the nozzles (53) can be accurately configured from the exterior of the sieve box, without disassembling the screen, to provide an efficient and precise device and method of separation of one or more components of slurry.
B01D 29/90 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor having feed or discharge devices for feeding
B05B 15/06 - Mountings, supporting or holding means, or rests for spray heads or other outlets when in use or out of use (B05B 15/10 takes precedence)
A continuous belt screen assembly and system used for filtering fluid for various municipal and industrial purposes. The assembly includes a pair of spaced, endless belts, lifters, and screen panels. Each lifter is operably mounted to the pair of belts for lifting of solid waste out of the fluid in the channel. Each of the screen panels may be interposed between lifters and secured in place by opposing slots defined by the lifters. The endless belts may include toothed drive links, with the ends of the teeth extending with the ends of the drive links to define an involute profile. The lifters may include a sleeve portion for receiving a pivot shaft and a paddle portion extending from the sleeve portion, terminating at a free end that may be contoured to have teeth. The lifters may be a flexible material configured to deflect.
B01D 33/048 - Filters with filtering elements which move during the filtering operation with filtering bands or the like supported on cylinders which are pervious for filtering with endless filtering bands
A diffuser basket includes a screen portion and a flow modifier positioned within the screen portion. The flow modifier is configured to change the direction of flow of a fluid introduced into the diffuser basket. The flow modifier can include a plurality of flat plates coupled to the screen portion and positioned at spaced apart intervals along a longitudinal axis of the diffuser basket. The flow modifier can include a plurality of truncated conical plates positioned at spaced apart intervals along a longitudinal axis of the diffuser basket, the plurality of truncated conical plates coupled to the screen portion. The plurality of flat or truncated conical plates each can include an opening. The plurality of flat truncated conical plates each has a cone angle that forms an oblique angle with respect to the longitudinal axis. These cone angles can be the same or they can be different.
B01D 35/00 - Filtering devices having features not specifically covered by groups , or for applications not specifically covered by groups Auxiliary devices for filtrationFilter housing constructions
A pipe coupling for connecting adjacent pipes. The pipe coupling has a connection type at each end that may be male or female. A female end may have an interior surface defining a receiving chamber. An interior circumferential groove is formed in the interior surface in which a band is seated. A plurality of rigid fingers is extends from the band into the receiving chamber. The receiving chamber receives a male end of an adjacent pipe, the male end having an exterior surface. An exterior circumferential groove is defined on the exterior surface to receive the plurality of rigid fingers. A variety of connection types and combinations are disclosed. The female end may define a sight window to permit viewing of the position of a male end of an adjacent pipe. The receiving chamber may have a reduced diameter proximate to the middle of the coupling to improve sealing.
An adjustable nozzle assembly for a sieve box and a sieve box including same, including a support assembly and nozzles. A pair of elongated support members may be received through openings in support collars. Nozzles may be operatively connected to the collars. The support assembly, which may include collars and rods, are configured to provide at least one of lateral movement and rotational movement of the nozzles. At least one of the first elongated support member and the second elongated support member may be configured to move when coupled to the sieve box to adjust a spray angle of the nozzles. Pivoting of the one rod about the other rod adjusts the angle at which the nozzles are disposed. The rods may be externally threaded, and the collars may be internally threaded, such that when the rods are rotated, the collars translate laterally along the rods to move the nozzles.
B01D 29/90 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor having feed or discharge devices for feeding
7.
Method of manufacture of pipe with reinforced female end
The present invention is directed to manufacturing processes for manufacturing a single piece of thermostatic pipe from a length of pipe with a female end that is reinforced by a band of reinforcing material extending around the female end. When the pipe and a similar adjacent pipe are threaded together, the band of reinforcing material helps protect the female end against failure due to hoop stresses and/or lateral stresses. In this regard, the reinforcing material is any material with a higher resistance to hoop stresses and/or lateral stresses than the material from which the pipe is made.
A screen assembly including at least upper and lower portions each with screen elements having different orientations. The upper portion includes a first plurality of screen elements and the lower portion includes a second plurality of screen elements. The upper and lower portions are coupled together to form a truncated conical arrangement. At least one screen element of the first plurality of screen elements has a different angular orientation relative to a plane that is perpendicular to the central longitudinal axis than at least one screen element of the second plurality of screen elements has relative to the plane. In some such embodiments, the screen elements of the second plurality of screen elements are each oriented to be in a respective plane that is substantially perpendicular to the central longitudinal axis. The screen assembly may be configured to separate a liquid component and a solid component from a slurry.
A method and apparatus for supporting a screen. The apparatus may comprise a cylindrical screen for submerging in a fluid. The screen may have an inlet pipe for connecting to a piping system, filter members, a first end, a second end, and a support structure. The support structure may include one or more helical and/or straight bar members which traverse the screen.
A screen intake system has a body with an open end and a chamber. A flat screen is disposed at the open end of the body. To keep the screen clear of debris, an airburst system has pipes disposed in the chamber. The pipes dispose parallel to one another adjacent the flat screen, and each of the pipes has orifices in a side facing the flat screen. Directors are disposed along the backs of the pipes in a lattice, and each of the directors has a channel in which the pipe disposes. Compressed air released by valves from a tank dispersed from the pipe's orifices. Each of the directors directs the resulting water/airburst from the orifices toward the adjacent flat screen to clear it of debris.
A47L 5/38 - Built-in suction cleaner installations, i.e. with fixed tube system to which, at different stations, hoses can be connected
B01D 29/66 - Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
B01D 35/02 - Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
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 29/46 - Edge filtering elements, i.e. using contiguous impervious surfaces of flat, stacked bodies
A screen assembly configured to separate coarse (larger) and fine (small) materials from an effluent flow. The assembly includes a plurality of bars having different heights. The bars are arranged to form larger spaces for separating coarser material from the effluent flow, and arranged to form smaller spaces for separating finer materials from the effluent flow. The effluent flows into the larger spaces first, and subsequently flows out of the smaller spaces. The assembly includes a cleaning device operable to remove the materials from both the large and small spaces.
A support grid assembly for use in a vessel. The support grid assembly includes panels each including a first wall including a media-supporting screen and a second wall to be supported by the vessel wall inner surface. A manifold is coupled to the panels and is in hydraulic communication with vessel outlet. The manifold and the panels permit fluid to flow through the screen in each panel, through the panels, into the manifold, and through the manifold to the outlet of the vessel, as well as in the reverse direction. At least a portion of the first wall may slope downward toward the manifold, and at least a portion of the second wall may form a bottom surface that is curved to substantially conform to a curvature of the vessel wall inner surface. The panels may be arranged in a circular configuration extending radially from the manifold.
A screen intake has a central body with two screens attached on either end. Each of the screens has an interior that communicates with a hollow of the body via flow modifiers. These flow modifiers include one or more pipes disposed in the interior of the screens and through passages in ends of the body. A flow control support device disposed within the body supports the body's sidewall and divides the hollow into at least two portions, each communicating with flow from one of the flow modifiers. The device can include one or more plates disposed adjacent one another within the internal hollow with a peripheral edge attached to an inside of the body's sidewall. At least one of the one or more plates can be solid, or one or more of the plates can define openings therein allowing passage of at least some fluid therethrough.
A screen has a plurality of rods arranged longitudinally around a central axis. The rods have first and second edges (e.g., inner and outer edges). Each of the first edges defines a profile that varies in lateral distances from the central axis along a longitudinal length of the rod. For example, the first edges can have an undulating profile of crests and troughs. With the plurality of rods disposed around the central axis, the profile produces a varied surface on the screen when a plurality of wraps from one or more wires is disposed laterally around rods. These one or more wires attach to the first edges of the rods and form a plurality of gaps.
B01D 29/44 - Edge filtering elements, i.e. using contiguous impervious surfaces
B07B 1/46 - Constructional details of screens in generalCleaning or heating of screens
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 29/33 - Self-supporting filtering elements arranged for inward flow filtration
B01D 29/48 - Edge filtering elements, i.e. using contiguous impervious surfaces of spirally or helically wound bodies
A screen intake apparatus has a concrete platform resting on a water source floor. A screen intake anchors on the platform and forms a half cylinder thereon. A barrier at one end of the platform in divides the flow of water. The screen intake has a half-cylindrical body and half-cylindrical screens. Transition walls in the screen intake divide the body's hollow and the screens' interiors, and at least one flow modifier communicates the interior with the hollow. These flow modifiers also form a half cylinder with the platform. A manifold in the screens receives a supply of air to clear debris. Forming a half-cylinder, the screen intake on the platform can have a much lower profile for the water source than the normal cylindrical screens, which require half of its diameter in clearance above and below.
A variable flow control nozzle has a head, a tube, and a valve. The head disposes adjacent an opening and has a screen for passage of fluid flow into and out of the head's interior. The tube extends from the head through the opening and secures the head thereto. A tube passage communicates the interior of the head with the other side of the opening. The valve disposed in the passage has a first condition permitting first fluid flow from the passage to the interior of the head and has a second condition permitting second fluid flow from the interior to the passage. The second fluid flow may be greater than the first fluid flow. The tube can have first and second tube members with different internal diameters, and the valve can use a ball movable between positions in the tube members.
B05B 15/02 - Arrangements or devices for cleaning discharge openings
F23D 11/34 - Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space by ultrasonic means
B01D 24/46 - Regenerating the filtering material in the filter
B01D 24/12 - Downward filtration, the filtering material being supported by pervious surfaces
F16K 17/04 - Safety valvesEqualising valves opening on surplus pressure on one sideSafety valvesEqualising valves closing on insufficient pressure on one side spring-loaded
A single piece of pipe connectable to a similar adjacent pipe and including a female end that is reinforced with a band. The pipe includes in one embodiment a male end having external threads, a female end having an enlarged exterior diameter, a first section at the female end having an interior diameter to receive a male end of the similar adjacent pipe, a second section at the female end having internal threads to mate with the external threads of the male end of the similar adjacent pipe. The first section is positioned to funnel the male end of the similar adjacent pipe to the second section, and the second section is positioned between an intermediate section and the first section. At least one reinforcement band is positioned circumferentially around at least a portion of the female end. The pipe is disconnectable from the similar adjacent pipe and reusable.
A pipe for connecting to a similar adjacent pipe. The pipe has a female end with a plurality of rigid fingers extending into the space within the female end. The plurality of rigid fingers extends from at least one interior circumferential groove on the interior surface of the female end. On the male end of the pipe there is at least one exterior circumferential groove that is sized and positioned to receive the plurality of rigid fingers from a corresponding interior circumferential groove on the female end of an adjacent pipe. The number of interior circumferential grooves on the female end with the plurality of rigid fingers extending from them typically corresponds to the number of exterior circumferential grooves on the male end. When the male end of a similar adjacent pipe is inserted into the female end of the pipe, the plurality of rigid fingers is received within the corresponding exterior circumferential groove on the male end, thereby preventing the male end of the similar adjacent pipe from being withdrawn from the female end of the pipe.
B23P 11/02 - Connecting or disconnecting metal parts or objects by metal-working techniques, not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluidsConnecting or disconnecting metal parts or objects by metal-working techniques, not otherwise provided for by making force fits
F16L 39/00 - Joints or fittings for double-walled or multi-channel pipes or pipe assemblies
19.
Push lock pipe connection system and disconnection tool
A disconnection tool for disconnecting pipes which are connected. The disconnection tool is preferably a two piece cylinder with a leading edge and handles opposite the leading edge, and, can be positioned around a male end of a male pipe that is within a female end of a female pipe. The disconnection tool initially inserts into a clearance between the interior surface of the female end and the exterior surface of the male end while the pipes are connected. As the disconnection tool is further inserted, its leading edge contacts and disengages one or more locking members extending through the clearance thereby allowing the male pipe to be disconnected from the female pipe.
patents
