Abstract: The present invention relates to filters used to remove debris from water being sucked into a piping system. It has particular application use in nuclear power plants, which, after a loss of coolant accident, must pump cooling water back into the reactor core from a collection sump. This water may contain various types of debris that must be removed before the water is sent back into the reactor cooling system. There are restrictions on the allowable pressure drop across the strainer and the space available for installing this equipment. The finned strainer of the present invention addresses these issues while maximizing the quantity of debris filtered from the water.

Abstract: A filter cartridge which comprises a filter pack (3) formed by a flat filtering medium, a tubular sheath (2) with a perforated wall, surrounding the filtering pack, and two respective end caps (5) having a first disc (16) and a second disc (17) placed one on top of the other, each made from thermoplastic, with a portion of the filtering pack (3) situated along one of its edges and a portion of the sheath (2) situated along one of its edges (33) which are embedded in the second disc (17), with the first disc (16) having a peripheral rim (19) which surrounds the relevant portion of the sheath (2) and with the sheath having a shoulder (34) opposite the edge of the rim (19) of the first disc (16).

Abstract: A filter comprises at least one filtration unit with a filtration passage having an inlet and an outlet, wherein the filtration unit includes at least one groove formed in an inlet side surface of the filtration unit, said at least one groove extending to the inlet and dimensioned to hold back substances which may clog the filtration passage, by means of upper edges of said at least one groove. According to the present invention, by forming at least one groove in an inlet side surface of the filtration unit, the filtration passages of the filter can be effectively prevented from being clogged.

Abstract: A juice press as used in the production of wine for removing liquids from solids, having a horizontally positionable press frame that allows a vertical press mechanism to be rolled to a first position for interference-free loading of a press basket with material to be pressed, and then rolled to a second operating position located over the press basket. The press basket has a liquid channeling plate having an arrangement of holes and channels that creates a perimeter seal along a circumference at the bottom of a loaded press basket. The liquid channeling plate traps naturally occurring sludge along the circumference bottom and allows for efficient evacuation of extracted juice from the bottom of the basket as the press mechanism is operated.

Abstract: Provided are a porous sintered compact suitable for a filter, a power feeder in a polymer electrolyte membrane type water electrolyzer, a current collector in a solid polymer fuel cell and in addition a liquid dispersion plate, especially an ink dispersion plate for an ink jet printer ink and the like. A titanium powder sintered compact made of a plate-like porous compact is obtained by sintering spherical powder made of titanium or a titanium alloy produced by means of a gas atomization method. A void ratio in the range of from 35 to 55% is realized by filling without applying a pressure and sintering without applying a pressure.

Abstract: A multi-well filtration device for filtering a suspension comprises a filtration plate with a filtration chamber and a collecting plate with a collecting well. The filtration chamber is connected to the collecting well and a filter element is arranged between the filtration chamber and the collecting well. A separation layer is arranged between the filtration plate and the collecting plate adjacent to the filter element. The use such of a separation layer allows an easy detachment of the filtration plate from the collecting plate. The detached filtration plate can comfortably be transferred into an analysis device, in which the solid phase of the filtration chamber can separately be analyzed through the separation layer, without any replacement of the solid phase.

Abstract: A storm drain filter is provided for filtering trash and debris from a stream of water passing through a storm drain. The storm drain filter comprises a panel having a multiplicity of openings formed therein and is adapted to mount adjacent to a sidewall of a storm drain such that the filter lies adjacent an outlet through which water passing from the storm drain flows. When installed in a storm drain, the filter fits relatively close to the outlet and the adjacent sidewall and permits water to flow through the openings thereof, but filters trash and debris.

Abstract: An edge filter assembly is disclosed. The edge filter assembly may include a housing having an inlet and an outlet. The edge filter assembly may further include a filter element disposed within the housing including first and second filter plates and first and second spacers disposed between the first and second filter plates. The spacers and filter plates may be configured and arranged to form a flow channel extending generally radially within the housing and defined between the first and second filter plates and the first and second spacers. The flow channel may have an inner flow gate and an outer flow gate. The inner flow gate may be disposed radially inward of the outer flow gate and may have a different cross-sectional configuration than the outer flow gate. The first filter plate may have an axial projection extending therefrom generally aligned with a fluid path within the housing.

Abstract: A filter device, in particular, for high-pressure applications in a molten polymer filtration, has a screw-in piece (10), provided with a first threaded section (12) for fixing the filter device, and a second threaded section (14) for fixing a filter medium (16), in particular, in the form of a metal wool and with a perforated support tube (18) for the metal wool. The other free end of the filter device is provided with a volume displacer (24). The metal wool is surrounded by a support grid (20) and fixed by two fixing pieces (28, 30), held at a separation from each other by the support grid (20). One fixing piece (28) is fixed to the second threaded section (14) of the screw-in piece (10). The other fixing piece forms a handle (30) for the fixing formed.

Abstract: An anti-microbial filter (105) for a micro-fluidic system (100) includes a silicon-based filter membrane (213) having holes (218) formed therein. The membrane (213) is formed on a substrate (211). One side of the filter membrane (213) has an anti-microbial coating (216) between the holes (218) on the filter membrane (213) and the other side can include filter supports formed from a silicon substrate. A method for making the anti-microbial filter (105) includes forming a filter membrane (213) on a substrate (211), forming holes (218) in the membrane (213) by providing a filter mask (215) and etching holes (218) through holes (222) in the mask (215). Then portions of the substrate (211) are removed from the filter membrane (213) using a masking and etching process to expose the holes (218). An anti-microbial coating is applied to the membrane (213) adjacent the holes (218).

Abstract: A screening device (e.g., screen plate or screen cylinder) is manufactured relatively inexpensively and easily yet has uniform screening openings (e.g., screening slots) even when of a width of less than 0.5 mm. A plurality of wires having first and second sections (the second sections having base portions and of smaller cross-section than the first sections) are mounted substantially parallel to each other, supported by at least one support bar or ring. The bars or rings have slots formed in a first side surface, and a cavity in open communication with the slots in a second side surface. The wires are fixed to the bars or rings by deforming the wires (e.g., by bending a flap, engagement by a reciprocating tool, welding, etc.) within the cavity, or by deformation of the support bar or ring in the cavity. The screen plate or cylinder is preferably used to screen or otherwise treat a cellulose pulp suspension, e.g.

Abstract: A vibratory apparatus for separating a liquid from a liquid-laden solid material. The apparatus includes an inclined trough having a base with a first end and a second elevated with respect to the first end. A deck is attached to the trough base, the deck defining support points positioned above the base spaced from one another by a distance sufficient to support the solid material above the deck, and passages located between the support points to allow liquid to flow to the deck. A vibratory drive is attached to the trough and oriented impart a conveying motion toward the trough second end. Solid material deposited onto the deck is advanced toward the second end by the conveying motion while the liquid flows along the trough base toward the first end under gravity.

Abstract: A drain water filter assembly for filtering debris laden liquids. The filter assembly has an apertured filter holder constructed and arranged to be placed into a basin, tub or sink. A removable and disposable filter is provided for placement within and securement to the filter holder structure. The filter holder has an elevated bottom portion which permits debris to be filtered and the filtered drain water to be dispensed through the apertures in the elevated portions of the filter holder bottom.

Abstract: An internal filter includes a lower substrate and an upper substrate. Fluid passages are formed by etching grooves into the surfaces(s) of the upper and/or lower substrates and/or in one or more intermediate layers. The filter pores extending between the fluid passages are formed by etching second grooves that fluidly connect the fluid passages. Two or more sets of the one or two intermediate layers can be implemented to provide additional filter passages and/or pores. Each set can be connected to a separate fluid source and/or a separate microfluidic device. In another internal filter, the inlet and outlet passages and the filter pores are formed on the same upper or lower substrate. The inlet and outlet passages are partially formed in a first step. In a second step, the inlet and outlet passages are completed at the same time that the filter pores are formed.

Abstract: A separation device, such as a filter or separation line apparatus, and method of making the same.

Abstract: A filter element for pulp screens comprising at least two plates separated by a distance from each other, wherein one plate has a number of projections formed thereon, and the projections being directed towards the other plate. The plates are attached to each other at the projections.

Abstract: In a filtration device (1) comprising a pressure-resistant housing (2) with a liquid inlet opening (3) and an outlet opening (4) for filtered matter, into which a collecting channel (12) terminates, at least one filter element (8–11) designed as flat membrane is connected to the collecting channel (12) in a pressure-tight manner. This device provides a high liquid throughput at the same time having a compact construction.

Abstract: A screen panel for a wood-chip digester, comprises a screen plate having a plurality of slots therein that are curved in the form of an arc. Each slot has a generally parallel-sided middle portion in the middle of the thickness of the screen plate, which middle portion has a width in the range of from 3 mm to 10 mm, and a portion that tapers out at an angle on each side of the middle portion, at a half-angle in the range of from 10° to 20°, for approximately one quarter of the thickness of the plate. All of the slots have their concave sides facing in the upstream direction of chip flow in the digester.

Abstract: A screen panel for a wood-chip digester comprises a screen plate having a plurality of slots therein that are curved in the form of an arc. Each slot has a width in the range of from 3 mm to 10 mm. One form of slot has a generally parallel-sided middle portion in the middle of the thickness of the screen plate, which middle portion has a width in the range of from 3 mm to 10 mm, and a portion that tapers out at an angle on each side of the middle portion, at a half-angle in the range of from 5° to 20°, for approximately one quarter of the thickness of the plate. Another form of slot tapers out from one side of the plate to the other side. All of the slots have their concave sides facing in the upstream direction of chip flow in the digester.

Abstract: A method of separating a liquid from a liquid-laden solid material includes providing a trough having a deck defining a support surface with passages extending through the support surface. The liquid-laden solid material is deposited onto the support surface so that the liquid-laden solid material is supported by the support surface. A vibratory force is applied to the deck to separate a substantial portion of the liquid from the liquid-laden solid material. The liquid separated from the liquid-laden solid material is directed under gravity force through the passages extending through the support surface. The solid material is conveyed along the support surface by the vibratory force to a solids discharge point.

Abstract: A micro-filter for filtering blood cells has a plurality of filtering channel structures, each having a first through hole and a first concave portion connecting to each other, and a plurality of through channel structures respectively connect to the filtering channel structures. Each defines a second through hole opposite the first concave portion, whereby the filtering channel structures are respectively attached to the through channel structures to provide more than two filtering effects.

Abstract: A liquid cleaning device comprises a vessel (1), a bottom plate (3), a heating device and a tubular riser (12) arranged in the vessel for heated liquid ascending through the riser, the heated liquid from the upper, open end of the riser running back through force of gravity down and outside of the riser to be reheated and ascend agains through the riser, and so on. The vessel—61) is cylindrical and substantially its entire base (17) can be heated by means of the heating device (171). A plurality of discs (51–54) of equal size are arranged in the upper part of the vessel (1), said discs having a central aperture (510) for the riser (12) and a plurality of small holes (511) distributed uniformly across the entire surface of the discs and provided with drip edges (5110). A distributor (14) is arranged at the upper, open end of the riser (12) to distribute the hot liquid coming out of the ruser uniformly over the uppermost disc (51).

Abstract: A filter having filter openings, which openings vary in cross-section automatically in accordance with an inherent variable of the medium passing there through. The openings can vary in response to the heat of the medium passing through the openings. The openings can include a perforated plate screening the openings and having elements, which shift the plate relative to the openings. The elements can be springs and can include a shape memory alloy.

Abstract: A filter wrap for a cylindrical filter has a sheet with an interior side facing the filter when the sheet is wrapped on the filter, and an exterior side. It also has an edge defining a main opening to the interior for receiving the filter. At least one strap is provided for the wrap with one end attached to the sheet. The strap has another accessible distal end. Pulling on the strap(s) everts the sheet as it is pulled off of the filter. This results in trapping debris residing on the exterior of the sheet within the sheet once it is everted during removal of the wrap from the filter. Installation and removal can be performed while the protected equipment remains in operation.

Abstract: A filter frame including a panel having a plurality of V-shaped elements disposed on the first side thereof. Each V-shaped element includes a pair of slots each configured to receive and orient a filter element. A portion of the panel disposed between adjacent pairs of V-shaped elements has an opening form therein to define a handle for carrying the filter frame.

Abstract: A pulp screen cylinder that includes screen media releasably engaged with a frame at spaced locations opposing movement of the media away from the frame during screening. A preferred frame includes a plurality of spaced engaging structures that releasably engage screen media. A preferred frame includes an arrangement of flow windows that are triangular or rhomboid. A preferred method includes producing a frame cylinder by centrifugal casting and machining flow windows using a jet cutting process. A preferred screen media has a plurality of spaced apart engaging structures that each releasably engages the frame at spaced apart locations. A preferred screen media is of wedgewire construction having engaging structure carried by a plurality of spaced wire retaining clips. A preferred clip has vee-shaped rounded slots and an arm thicker than an end wall. A preferred engaging structure includes a projection that has a lip or hook for releasable interlocking engagement.

Abstract: Process for manufacturing screens and screens suitable for use in wet screening fibrous paper suspensions, in which the screens include at least one screen plate having a number of sorting apertures. The process includes providing a number of fastening openings in the at least one screen plate, and inserting profiled pieces into the fastening openings. At least a portion of the profiled pieces are arranged to project beyond a screen surface.

Abstract: A lint trap, including a housing having a first side wall, a second side wall, a top wall, a bottom wall, a back wall and a front wall, and the bottom wall defining an aperture; at least one attachment mechanism joining the housing to a utility sink; a lint collection plate slot defined in the side walls; a lint collection plate, the lint collection plate being slidably received within the lint collection plate slot; and an adapter having a hose end and a trap end, the hose end being adapted to join to a hose of a washing machine and the trap end being joined relative to the aperture defined in the bottom wall and a method of use including the steps of flowing water into a flow rate control chamber of a lint trap; flowing water from the flow rate control chamber to a water release chamber; flowing water from the water release chamber through a lint collection plate; removing the lint collection plate from the lint trap; wiping lint off the lint collection plate; and reconnecting the lint collection plate to t

Abstract: A media bed support grid for use with a vessel having an inner surface. The media bed support grid comprises a plurality of filter panels, each filter panel having a plurality of parallel and spaced-apart filter wires, the plurality of filter wires forming a filtering surface. The media bed support grid also comprises a plurality of channels underlying and positioned substantially perpendicular to the filter wires. The media bed support grid further comprises a plurality of manifolds, each manifold being coupled to and in fluid communication with the channels.

Abstract: In the rotationally symmetrical screen for fiber suspensions with a series of straight profiled bars which extend the direction of the screen axis and form slot-shaped screen openings between them, and with several ring-shaped profiled bar supports lying in planes extending perpendicularly to the screen axis, each of the profiled bar supports having in its edge region adjacent to the inlet side of the screen a series of cutouts opening towards the inlet side of the screen for insertion of the profiled bars, with the shape of these cutouts corresponding to the configuration of the cross-sectional regions of the profiled bars held positively in these cutouts, in order to simplify insertion of the profiled bars into the cutouts of the profiled bar supports each profiled bar has for each profiled bar support a recess which decreases the width of this cross-sectional region of the profiled bar, and the recesses lie outside the profiled bar supports in the finished screen.

Abstract: A strainer for straining food is disclosed wherein. The strainer includes a clamping device for clamping the strainer to a center partition of a sink.

Abstract: A drain strainer for debris is located in drain line having a side outlet extending to a drain line flow space. The strainer has a body bounded by sidewalls contiguous with an annular forward end wall for abutting with the drain flow space to prevent the passage of debris. An array of apertures in the strainer body, which is hemispherical or planner with upstanding sidewalls, is sufficient in number and size to maintain water flow while extracting and retaining debris occurring in the drain line flow space. A closure assembly is formed by a closure plate that supports a seal acted on by a retainer for forming a fluid tight seal with the side outlet opening of the drain line segment.

Abstract: The invention relates to a filter element (1) for pulp screens. The filter element (1) comprises at least two plates (2,3) at a distance from each other, of which at least one is provided with a number of projections (4) made on the said plate by forming, the projections being directed towards the other plate. The said plates (2,3) are attached to each other at the projections (4). The invention further relates to a method for manufacturing such plates (2,3).

Abstract: A wash bucket screen has a slanting platform supported on a frustum skirt. The platform has a plurality of holes interspersed between raised ridges on the platform running radially generally toward its perimeter as an aid in releasing water from a cloth squeezed against the platform. To effectively prevent backsplash from the bucket bottom back through the screen, the holes taper from a diameter sized to readily collect water on the platform top to a smaller hole diameter on the platform bottom. The skirt includes a flange on its distal end that engages the bucket wall. To accommodate a frustum bucket with changing wall diameter, the skirt flexes resiliently with the flange engaging the bucket wall and the skirt flexing inward as the screen is inserted in a bucket with decreasing diameter. To allow movement of the skirt, a plurality of slits extend vertically, opening at the skirt distal end, providing an effective splash shield between the skirt and the bucket wall.

Abstract: A medical filter (11) is constructed as a container with an interior volume in open fluid communication with a patient connection element (31) and a transport connection element (39). Filter support structure (13) mounted within the interior is structured as a thin, perforated member (14) carrying hydrophilic filter medium (17). A first flow path directs spent dialysate from the patient across the surface of the filter medium (17) to the transport connection (39). A second flow path directs fresh dialyalysate from the transport connection (39) through the filter medium (17) and the perforated support structure (13) to the patient connection (31).

Abstract: A device for washing, serving and storing berries, grapes and other fruits, etc., comprising a first container provided with a plurality of throughgoing openings so that when berries, grapes and other fruits, etc. are deposited in an interior of the first container and water is poured into it for washing berries, grapes and other fruits, etc., after washing water can flow out of the first container, and a second container which is substantially solid and formed so that the first container can be inserted into the second container so that water flowing out of the first container is accumulated in an interior of the second container and thereby the water is substantially removed from the berries, grapes and other fruits, etc. located in the interior of the first container, so that the device can be used for washing, serving and storing the berries, grapes and other fruits, etc.

Abstract: A screening device (e.g., screen plate or screen cylinder) is manufactured relatively inexpensively and easily yet has uniform screening openings (e.g., screening slots) even when of a width of less than 0.5 mm. A plurality of wires having first and second sections (the second sections having base portions and of smaller cross-section than the first sections) are mounted substantially parallel to each other, supported by at least one support bar or ring. The bars or rings have slots formed in a first side surface, and a cavity in open communication with the slots in a second side surface. The wires are fixed to the bars or rings by deforming the wires (e.g., by bending a flap, engagement by a reciprocating tool, welding, etc.) within the cavity, or by deformation of the support bar or ring in the cavity. The screen plate or cylinder is preferably used to screen or otherwise treat a cellulose pulp suspension, e.g.

Abstract: A filter is press-inserted into a mounting bore of an injector. The filter has an inlet section at an opening-end fuel inlet side and a filter section which has a number of holes. The bottom of the filter section is hemispherically-shaped so that a flow area formed between the outer surface of the hemispherical bottom portion and the inner round surface of the mounting inlet bore widens gradually to reduce pressure loss effectively.

Abstract: The invention relates to a spinneret for spinning thermoplastics. Said spinneret comprises a central polymer inlet channel, a filter assembly (2), consisting of one or more filter plates of various filtration grades, a spinneret plate (3) and a housing (1) which receives and tightly surrounds the filter assembly (2) and the spinneret plate (3). The selection of suitable materials and tolerances for the individual parts of the spinneret enables the sealing effect to be achieved at operating temperature by the increased expansion of the internal components, in relation to the external housing.

Abstract: A strainer basket is used in conduits or fluid systems and includes a non-metallic strainer basket in which a bio-cide is disposed to combat algae and fungal buildup along the surface of the basket and/or in the openings of the basket.

Abstract: A filter having a filter body with a plurality of filter openings, each having a passage cross-section which varies automatically in response to a characteristic inherent to a medium flowing through the openings to filter the medium.

Abstract: Flat, stackable filter disk elements include a deep bed filter material for removing particulates from a flow of unfiltered fluid and thereby obtain a filtered fluid. The filter material has a thickness extending between a pair of major parallel planar surfaces which define a filter element plane, and include a first flow openings for the filtered fluid, a second flow opening for unfiltered fluid, and a collection opening for collecting one of the filtered and unfiltered fluids. The collection opening and the first and second flow openings extend through the filter material between the planar surfaces. The first and second flow openings also respectively define first and second flow surfaces for the filtered and unfiltered fluids which are substantially perpendicular to the filter element plane and which establish a fluid flow path between the first and second flow openings through the filter material which is substantially parallel to the filter element plane.

Abstract: This product will be made of polyurethane. The purpose of this product is to minimize accidental burns and spill overs. With it's unique clamp down feature, this product will do just that. Made dishwasher safe it allows a steril cleaning. This product also allows a person to use both hands, control tipovers and attaches safely to the sink.

Abstract: A fluid filtering system for filtering dirt and other debris from fluids being conveyed in a pipeline for snow making apparatus and other devices. An upright pipe segment is connected to a horizontal pipe segment through a pipe elbow or angle for conveying fluid such as water and/or air under pressure from the horizontal pipe segment through the pipe angle and upwardly through the upright pipe segment. A filter is provided in the upright pipe segment adjacent its lower end and an external drain is disposed in the pipe angle directly under the filter to automatically flush and clean the filter when the drain is opened.

Abstract: A fluid filtration system, particularly for use in piston cooling jets, includes a fluid chamber with a filter element disposed therein. In one embodiment, the filter element comprises a tubular filter telescopically attached within a coil spring. In a second embodiment, the filter element comprises a coil spring serving as a filter. The filter element is installed within the fluid chamber, so its interior is in communication with one of an inlet and outlet of the chamber, by compressing the filter element and inserting it through an aperture in the fluid chamber which serves as the other of the fluid inlet and outlet. The filter element then expands and is held in place by its resilient bias. The filter element of the invention can be used to apply local filtration, and can be readily removed for cleaning or replacement by reversing the installation process.

Abstract: Spent pyrophoric reaction catalyst from a reaction mixture is removed safely, cheaply, and rapidly using a single plate pressure filter. After hydrogenation, the reaction mixture is decanted, the desired hydrogenation product is removed, and catalyst-rich material which settles at the bottom of the vessel is delivered to a single plate pressure filter fitted with a filter bag 40 of permeable material. The spent catalyst is retained in the filter bag 40 and stored under water awaiting recovery. The filter apparatus 1 comprises a container having a domed base 2, a generally cylindrical sidewall 3 terminating in an upper rim 4 closed by a lid 5 having lifting lugs 6. The lid 5 is fixed in pressure-tight engagement with the sidewall 3 by flange engaging screw clamps 7 and an embedded polytetrafluoroethene gasket 8. The filter bag 40 is held in position by a band 11 and may be readily released for removal of the spent catalyst material. The bag 40 may be reused.

Abstract: A filtration membrane and method of making the same wherein the filtration membrane comprises obstructions and/or spacers.

Abstract: A screen panel for a wood-chip digester, comprises a screen plate having a plurality of slots therein that are curved in the form of an arc. Each slot has a generally parallel-sided middle portion in the middle of the thickness of the screen plate, which middle portion has a width in the range of from 3 mm to 10 mm, and a portion that tapers out at an angle on each side of the middle portion, at a half-angle in the range of from 10° to 20°, for approximately one quarter of the thickness of the plate. All of the slots have their concave sides facing in the upstream direction of chip flow in the digester.

Abstract: A filter screen having support frame including an outer peripheral flange surrounding a central region. Faces of the outer peripheral flange of the support frame to which the wirecloth is bonded by heating are formed with a plurality of closely spaced apart parallel ridges including outer ridges and inner ridges, each having a crest, so that when heated, the crests of the ridges soften, and the woven wirecloth laid thereover and tensioned can, under an appropriate downward loading, penetrate and become embedded in the softened ridge crests. The outer ridges extend to a greater height above the frame than said inner ridges, whereby there is a greater volume of polymer to be melted and spread by the application of heat and pressure to the wire cloth near outer regions of the outer peripheral flange than near inner regions of the outer peripheral flange.

Abstract: The screen cylinder includes a screening plate having contoured grooves along an inflow side and a backing cylinder having a plurality of openings therethrough and disposed on the outflow side of the screening cylinder. The contoured grooves are elongated in the axial direction and are closely circumferentially spaced one from the other about the screen cylinder. In one embodiment, circumferentially extending grooves are formed along the outflow side of the screening cylinder whereby pulp flows through the contoured grooves into the recesses and then through the openings of the backing cylinder. In another embodiment, the recesses are formed on the inflow side of the backing cylinder, the screening cylinder being provided with elongated slots along its outflow side in registry with the contoured slots. In this manner, increased flow capacity is provided. Additionally, the screening cylinder is removable when worn for replacement by a fresh screening cylinder which may then be secured to the backing cylinder.