Abstract: A filter assembly for filtering water in spas, swimming pools, hot tubs and whirlpools, having a first or outer filter element, a second or inner filter element removably installed within the outer filter element, a first coupling member associated with the outer filter element, a second coupling member associated with the inner filter element, the first and second coupling members engaging one another to connect the inner filter element with the outer filter element, and a releasable detent arrangement resisting disengagement of the first and second coupling members from one another. The outer filter element includes a filter medium for mechanically removing particulates from a fluid to be treated and the inner filter element includes a filter medium containing fluid purifying particles.

Abstract: A fuel filter assembly includes a filter bowl body including a bottom wall, the bottom wall having a concave feature. The fuel filter assembly includes an electro-static discharge (ESD) pin at least partially positioned within in the concave feature. A method for discharging electro-static in a fuel filter assembly includes providing a filter bowl body including a bottom wall, the bottom wall having a concave feature. The method includes discharging electro-static by positioning an ESD pin at least partially within the concave feature.

Abstract: A bottle filling station may include a liquid dispenser configured to dispense liquid. A pan can be configured to collect at least a portion of the dispensed liquid with a liquid flow circuit providing liquid to the liquid dispenser. A filter can be disposed in the liquid flow circuit configured to filter the liquid in the liquid circuit and a non-filtering bypass can provide liquid to the liquid dispenser bypassing the filter.

Abstract: A device for easy and rapid removal of pollutants from drinking water and other liquids. A method for removing a pollutant from a drink by immersing the device into the drink. A method for constructing the device using polypropylene (PP) membrane sheet and an adsorbent.

Abstract: A separating device for separating a liquid from gas is provided with a separating element that has a housing with housing cover closing off an end face of the housing. A filter element is arranged in the housing. A coupling element is provided to couple the separating element to a connector device. The housing cover has a central first gas passage and a second gas passage arranged radially outwardly of the first gas passage. The housing cover has a housing cover thread correlated with the first gas passage. The housing cover thread is to be screwed to a coupling element thread of the coupling element. A fluid discharge channel is arranged within the coupling element for discharging separated liquid from the separating device. The housing cover thread and the coupling element thread, in a position of use of the separating device, are connected substantially seal-tightly to each other.

Abstract: A filter insert for installation in a fluid filter has at least one main separator for separating liquid from aerosol. The main separator is supported at a main separator support tube. The filter insert further has at least one post separator for separating liquid from aerosol that is supported at a post separator support tube. The post separator is arranged downstream of the main separator in a flow direction of a fluid to be cleaned. The post separator is arranged concentric to the main separator and is radially spaced by an intermediate space from the main separator. The post separator support tube is configured to add axial elasticity to the support tube.

Abstract: A filter material for a filter insert of a fuel filter for separating solid particles and water droplets from fuel. The filter material comprises a particle filter medium layer through which the fuel flows first during use and at least one coalescer medium layer which lies on the particle filter medium layer on the outflow side. At least one coalescer medium layer is gradient-free in the flow direction with respect to the geometrical structure and/or physical properties and/or chemical properties of the layers. The at least one coalescer medium layer has a thickness measured in the flow direction which is maximally as large as the thickness of the particle filter medium layer measured in the flow direction.

Abstract: Embodiments of the present invention provide elements that are beneficial for use in fluid filtration. Embodiments provide elements that have variable feed spacer height, variable permeate spacer height, or both. The variable height allows flow properties to be matched to fluid volume as the filtration occurs.

Abstract: A stacked sorbent assembly for use in sorbent dialysis. The stacked sorbent assembly contains two or more interchangeable sorbent pouches that allow for fluid to freely pass into and through the sorbent materials, while keeping the sorbent materials inside the sorbent pouches. Any of the pouches in the sorbent cartridge can be reused and/or recharged.

Abstract: An air filter group for air supply to internal combustion engines of motor vehicles, of a type comprising an external casing provided with an inlet opening of the air to be filtered, and an outlet opening of the filtered air, and a removable cover, the inlet and outlet openings being separated by a removable filter cartridge which comprises a hollow cylindrical filter wall crossed by the air in a centripetal direction, in which the at least a filter cartridge is fixed to the cover in which cover a chamber is present, delimited by a base provided with at least a hole at which the at least a cartridge is fixed, by an opposite wall to the base and by an annular wall located between the base and the opposite wall and comprising the outlet hole of the filtered air, the cover being destined to be inserted sealedly in the casing.

Abstract: The invention relates to a filter panel (1) for a drum filter (2) which is used for filtering off solid particles from a liquid. The filter panel (1) comprises a first side (3) being adapted to be attached to a drum (4) of said drum filter (2), a second side (5) being adapted to receive a filter cloth (6), and a plurality of through holes (7) extending from said first side (3) to said second side (5), each hole (7) defining one or more side walls (8). The filter panel (1) is characterized in that at least one of said holes (7) comprises an inclined side wall (8). The invention also relates to a drum filter (2) for filtering liquid.

Abstract: An upper end cap is attached to an upper end portion of a filter assembly, and the upper end cap includes an inner peripheral wall that is fitted into a central space portion of an inner-filter member, an intermediate wall that surrounds the outer periphery of an outer-core member, and an outer peripheral wall that surrounds the outer periphery of an outer-filter member. The height of the intermediate wall is smaller than the height of the outer peripheral wall and the height of the inner peripheral wall. The inside of the upper end cap is filled with adhesive having a depth that enables the intermediate wall to be embedded in the adhesive, and the upper end portion of the filter assembly is bonded to the upper end cap in a state where the upper end portion is inserted in the adhesive.

Abstract: An effluent processing apparatus comprises a first processing stage in which oil and water are separated from an effluent mixture containing air, oil, and water from a purge valve of an air dryer. The effluent processing apparatus also comprises a second processing stage in which oil is extracted from the separated oil and water of the first processing stage. The effluent processing apparatus further comprises a third processing stage in which air from the first processing stage and water from the second processing stage are combined and exhausted to atmosphere.

Abstract: A liquid filter cartridge is provided. Preferred seal arrangements are provided, to provide for preferred axial load conditions, with respect to one or more of the end caps of the cartridge. Some cartridge configurations provided include no core structure or outer liner structure therein, to support axial load. Assemblies using the cartridge, and methods of assembly and use, are provided. The liquid filter cartridge can be a serviceable cartridge, or it can be retained permanently in a housing.

Abstract: An oil separator provided with a housing with an inlet for an oil-gas mixture and which defines a space that is closed off by means of a lid, whereby a screen is provided in the aforementioned space in which a filter element is affixed and a pipe or collector that connects the interior of the filter element to an outlet in the housing for purified gas, whereby the oil separator is provided with a drainage line for the removal of the oil that has been filtered out, wherein the drainage line ensures the removal of the oil that has been filtered out from the underside of the filter element directly to an outlet for oil in the housing.

Abstract: The present invention relates to a coalescence filter for purifying a fluid which contains a carrier and at least one liquid contaminant by coalescing of the at least one contaminant, wherein the coalescence filter includes an inlet for supplying the fluid to a filter element present in the coalescence filter, wherein the filter element includes a primary coalescence medium which is provided for coalescing of the at least one contaminant in the primary coalescence medium during the displacement of the fluid through the primary coalescence medium, wherein the coalescence filter further includes an outlet for discharging the coalesced contaminant from the filter element, wherein the primary coalescence medium comprises at least one layer of a porous material, wherein the primary coalescence medium has a total thickness of at least 3.5 mm.

Abstract: Filter elements for gaseous fluid (e.g., air) filtration for wafer processing systems. The filter elements have a pleat ratio of no greater than 7, where the pleat ratio is the number of pleats per mean diameter of the filter. By having a pleat ratio no greater than 7, and in some implementations also greater than 5, the filter is optimized for wafer processing systems and methods. This pleat ratio optimizes the spacing between pleats, thus balancing filtration media area against effective area, such as what might be lost due to contaminant bridging.

Abstract: The present invention relates to a filter unit for filtering a compressed gas contaminated with oil, in particular compressed air, wherein the filter unit contains a coalescence filter for coalescing the contaminant contained in the compressed gas, in particular oil. The coalescence filter comprises a housing with a gas supply for supplying the gas to a primary coalescence medium disposed in the housing, the gas flowing in a flow direction, wherein the primary coalescence medium contains at least one first layer of a first porous coalescence medium and a second layer of a second porous coalescence medium adjacent to the first layer, wherein the primary coalescence medium has a total thickness of at least 3.5 mm, measured at a pressure of 2 N/cm2.

Abstract: Embodiments of the present disclosure provide a system for purifying fats, oils, and grease from wastewater. The system may include a trash pump configured to pump the wastewater into the system, a grinder pump positioned downstream of the trash pump and configured to grind materials in the wastewater to form a process mixture, a plurality of heat exchangers positioned downstream of the grinder pump and configured to heat the process mixture, a shaker tray positioned downstream of the grinder pump and configured to remove solids from the process mixture, a decanter positioned downstream of the shaker tray and configured to remove solids from the process mixture, and a centrifuge positioned downstream of the decanter and configured to remove liquids and solids from the process mixture to form purified FOG.

Abstract: A hollow drywell apparatus adapted to being positioned beneath the ground and to receive surface water for discharge over a subsurface area in the ground is provided. The drywell has a top with a large diameter top port, a side wall with a plurality of smaller diameter drain-type ports generally uniformly distributed about the drywell side wall surface, and an open bottom. The top port receives a collector assembly acting as a surface drain. Optional larger diameter inlet ports may be formed in the sidewall to provide interconnection between and ganging of adjacent drywells. A diverter is positioned over each drain-type port along either the drywell wall surface exterior, or optionally the wall surface interior. Each diverter laterally dispenses water from the drywell interior while blocking back fill from entering the drywell assembly interior.

Abstract: In general, techniques are described for filter media monitoring within a filtration system. The filter media monitoring techniques described herein include, for example, direct contact with the filter media, e.g., a sensor may be located inside a boundary defined by a surface of the filter media, or indirect contact with the filter media, e.g., a sensor may be located outside the boundary defined by the surface of the filter media such that the sensor does not make direct physical contact with the filter media being monitored.

Abstract: A stacked sorbent assembly for use in sorbent dialysis. The stacked sorbent assembly contains two or more interchangeable sorbent pouches that allow for fluid to freely pass into and through the sorbent materials, while keeping the sorbent materials inside the sorbent pouches. Any of the pouches in the sorbent cartridge can be reused and/or recharged.

Abstract: A blood reservoir may be used in combination with other elements such as a heart lung machine (HLM), oxygenator, heat exchanger, arterial filter and the like to form an extracorporeal blood circuit that may be employed in a procedure such as a bypass procedure. The blood reservoir may be configured to receive, filter and store blood from a number of sources including vent blood (from within the heart), venous blood (from a major vein), purge blood (from a sampling line) and cardiotomy or suction blood (from the surgical field).

Abstract: A support tube for a filter element, in which the support tube is an elongated tubular member having a central longitudinal axis extending through a hollow interior of the support tube. The support tube has a plurality of through openings extending through a circumferential wall of the support tube and is formed in one piece and a unitary component. The plurality of through openings are bounded by at least five longitudinal webs which are polygonal in cross section in at least some sections in the longitudinal direction of the support tube. The at least five longitudinal webs are in each case formed symmetrically.

Abstract: A dispensing system having a treatment cartridge utilizing linear translation of the treatment cartridge within the manifold to actuate a valve to dispense a fluid. To dispense the fluid, a person pushes their glass or other container against a dispensing lever that translates the treatment cartridge within the manifold causing a cam surface on the filter's circumferential exterior to actuate a valve sending the fluid from the valve though the treatment cartridge and out a dispensing orifice in the treatment cartridge into the glass.

Abstract: In some embodiments, a water straining and chemical additive device may include a filter body having a wall inflow surface, a central aperture, and a peripheral aperture. A return water tube having a tube outflow surface and a tube inflow surface may be coupled to the filter body. An inflow conduit may be in fluid communication with the peripheral aperture, and the inflow conduit may be formed by the wall inflow surface and the tube inflow surface. An inflow filter screen may be coupled to the peripheral aperture. A filter cap forming a primary cavity in fluid communication with the central aperture and the peripheral aperture may be coupled to the filter body. An outflow filter screen may be coupled to the central aperture. An outflow conduit may be in fluid communication with the central aperture, and the outflow conduit may be formed by the tube outflow surface.

Abstract: A filter is configured to be used in a variety of different devices to filter particulate matter from a fluid (e.g., air or water), such as residential or commercial air filtration systems, automobile filtration systems, and water filtration systems. In one embodiment, the filter includes a filter medium and a support member. At least one inwardly deflected portion of the support member engages at least one portion of the filter medium to couple the support member to the filter medium. In one embodiment, the deflected portion of the support member may be deflected inward at an angle between approximately 90 degrees and approximately 180 degrees. The filter medium may be any suitable filtration material, such as fiberglass, paper, or vegetable fibers (e.g., cotton). The support member may be constructed of expanded metal, wire mesh, or a flat plate.

Abstract: Described herein is a substrate including a central longitudinal axis, a first support web, and a second support web. A sinuous web may be positioned between the first support web and the second support web. The sinuous web may include transverse web portions and bridging web portions, where the bridging web portions alternatively connect ends of adjacent transverse web portions. The sinuous web may be connected to the first support web by support legs extending between bridging web portions and a surface of the first support web. The sinuous web may be connected to the second support web by support legs extending between bridging web portions and a surface of the second support web. A support leg length to distance between transverse web portions ratio may be from about 1.0 to about 4.0.

Abstract: A spiral-wound forward osmosis membrane element (2) includes: a membrane leaf (23) in which an internal flow path extending from a first opening (26A) to a second opening (26B) is formed; and a central tube (31) around which the membrane leaf (23) is wound and which has a feed hole (31A) communicating with the first opening (26A) and a collection hole (31B) communicating with the second opening (26B). The central tube (31) has an interior partitioned to include an inflow region (3A) communicating with the feed hole (31A) and an outflow region (3B) communicating with the collection hole (31B) so that the inflow region (3A) and the outflow region (3B) each form a flow path extending continuously in an axial direction of the central tube (31) from one end to the other end of the central tube (3).

Abstract: A filter element has a filter structure and first and second end caps attached to the opposite ends of the filter structure. The filter structure includes an outer filter pack, an inner filter pack, and a helical support positioned between the outer and inner filter packs. The helical support may have flow channels and support ridges on the inner surface and the outer surface of the helical support. Unfiltered fluid may be directed outside-in through the outer filter pack and inside-out through the inner filter pack, the support ridges of the helical support supporting the outer and inner filter packs against the pinching forces associated with the pressure drops across the outer and inner filter packs. Filtrate may be directed axially along the flow channels of the helical support and discharged from the filter element.

Abstract: Improvements to filtration and vessels such as for filtration and coalescing of gas streams are shown. A filter element with a partial treated region and untreated region such as providing different surface energies or other filtration characteristics are provided. Various keying arrangements for compatibility and/or rotational locking are shown between the filtration vessel, a tubular coalescing baffle, and/or filter element. The tubular coalescing baffle also may include non-louvered pore structure, which provides for more even flow in a two stage type filtration vessel to prevent premature exiting and reduction of flow velocities along the second stage, and/or may additionally or alternatively include drainage apertures such as drain slot formed along a gravitational bottom or otherwise to facilitate additional drainage of coalesced liquid as opposed to letting such liquid be forced through fluid velocity toward the open end of the tubular baffle.

Abstract: Method and system is described to enhance operations for managing the hydrocarbon release. The system utilizes an airborne detection device equipped with measurement components and communication components. The system may utilize various measurement techniques to determine the thickness of the oil slick. This remote detection method may provide a dedicated airborne detection device for each response vessel and that can identify the location and thickness of the oil slick.

Abstract: A drain strainer assembly includes a housing having a circular cross-section, with an inlet port, an outlet port, and a plurality of first engagement tabs. The drain strainer assembly also includes a strainer member assembly having a circular cross-section. The strainer member assembly includes a strainer member with a solid front surface having a handle and a plurality of second engagement tabs interlocked with the first engagement tabs on the housing. The strainer member also includes cylindrical strainer sidewalls defining a circular opening at the back of the strainer member, and has an upper conduit aligned with the inlet port of the housing. The strainer member assembly also includes a circular strainer disk coupled to the strainer member with a fastener and covering the circular opening at the back of the strainer member.

Abstract: A filter (10) with a filter element (36) are described. A housing (12) includes at least one fuel inlet, fuel outlet (18) and a water outlet (30) for water separated from the fuel. The filter element (36) within the housing separates the fuel inlet (26) from the fuel outlet (18). The filter element (36) includes a hollow body filter medium (38) flowed through radially. A water separation unit (56) with a hollow body hydrophobic fuel-permeable separating medium (66) separates water contained in the fuel and includes at least one support structure disposed in the flow path (78) in such a way that a precipitation gap (74) is realized between the filter medium (38) and the separating medium (66). The precipitation gap (74) is connected with the water outlet (30).

Abstract: A water separating device of a filter element for separating water from a liquid hydrocarbon has a coalescing medium in the from of a hollow body and designed to coalesce water droplets of the liquid hydrocarbon passing through the coalescing medium in a flow direction of the liquid hydrocarbon. A hydrophobic separating medium in the form of a hollow body and permeable for the liquid hydrocarbon is provided. The hydrophobic separating medium is arranged in a flow direction of the liquid hydrocarbon downstream of the coalescing medium and separates water droplets of the liquid hydrocarbon from the liquid hydrocarbon. At least one precipitation gap is formed between the coalescing medium and the separating medium.

Abstract: A water filter including a housing, at least one cylindrical filter component disposed within the housing, an inflow pipe extending through, and parallel to a longitudinal axis of, the at least one cylindrical filter component, the inflow pipe including a series of openings arranged along the length of the inflow pipe so as to cause a cyclonic motion of the contaminated water out of the inflow pipe and into contact with the at least one cylindrical filter component, a first outflow pipe that delivers filtered water from the at least one cylindrical filter component, and a second outflow pipe that delivers contaminants from the at least one cylindrical filter component.

Abstract: Static dissipaters for eliminating static electricity in fuel filter assemblies and fuel filter assemblies including static dissipaters are provided. The static dissipaters are in the form of a static dissipation sleeve that is disposed around the outside of a fuel pump within a fuel filter assembly. The static dissipation sleeve has one or more protrusion portions that protrude radially from the surface of the static dissipation sleeve and provide contacts for static dissipation of static electricity.

Abstract: A filter within a filter cartridge design is described that includes a sealing structure on an endplate of an outer filter element. Generally, the sealing structure includes an annular flange on the endplate that can directly seal against an interior surface of a housing when the filter cartridge is assembled for use. During filtration, the annular flange prevents a working fluid from bypassing the outer filter element. The sealing flange can seal with the housing in a press fit engagement.

Abstract: A high capacity suction strainer for a nuclear reactor has a frame, a flow-through plenum, and a filter array. The flow-through plenum is mechanically mounted to the frame and has a plurality of inlets and an outlet. The filter array is also mechanically mounted to the frame and has a plurality of filter groupings in fluid communication with the inlet on the plenum.

Abstract: A parallel flow filter-in-filter design for a filter system is provided. The filter-in-filter design provides two distinctly parallel or independent flow paths within a filter assembly in a single housing or shell. The filter assembly includes a first outer filter element radially spaced apart from a second inner filter element. A centertube and a funnel shaped passageway housed within the centertube are provided in a space between the first outer filter element and the second inner filter element. The centertube and funnel shaped passageway work in tandem to provide two distinct parallel or independent flow paths within the filter assembly. The funnel shaped passageway is provided generally below the second inner filter element within the centertube.

Abstract: Apparatus for treating run-off water, the apparatus including a mechanical-sorption filter for removing particulate and colloidal material; an ion exchange filter for removing positively charged ions; and, a sorption filter for removing at least other soluble contaminants.

Abstract: A fluid pressure vessel has a chamber with an inlet and outlet with a nested primary and secondary filter bag disposed such that the primary bag communicates exclusively with the inlet, and flow through the primary bag flows through the secondary bag before the outlet. The primary bag is disposed in a first rigid porous basket and the bag rim seals against a flange on the first basket. The secondary filter bag surrounds the first basket and the rim of the secondary bag is sealed around the flange of first basket. A second rigid porous basket surrounds the secondary filter bag and is sealed on the rim of the secondary filter bag and is sealed against the inner periphery of the pressure chamber by an O-ring.

Abstract: In order to provide an improved multistage oil separator, in particular for the use with compressors in cryogenics, the oil separator includes a housing (10) having a gas inlet (18) and a gas outlet (20), and at least two filter elements (26, 28) arranged as a cascade in the housing between the gas inlet (18) and the gas outlet (20).

Abstract: A water-conducting household appliance, in particular a dishwasher, includes a hydraulic circuit for circulation of a wash fluid, and a filter facility which includes a filter element having an inner wall and at least one filter opening for passage of the wash fluid. The filter opening is bounded by the inner wall running around the filter opening. The inner wall has an upstream wall segment and a downstream wall segment, with a gradation being formed at least in a segment between an upstream and downstream wall segment of the inner wall of the filter opening. Additionally or independently hereof, the downstream wall segment has a cross section that increases in a flow direction of the wash fluid.

Abstract: A filtration and demineralization apparatus 10 including a vessel 20 in a form of a body of revolution; a hollow columnar body 40 that is located in an internal space of the vessel 20, one end 40a of the columnar body being connected to an inner surface of the vessel 20 along an entire circumference of the end, and the other end 40b of the columnar body forming an opening; and a partition plate 44 that is connected to the other end 40b of the hollow columnar body along an entire circumference of the other end 40b, the partition plate being configured to separate an inside space or an outside space of the hollow columnar body 40 as an independent space in the vessel. The partition plate 44 has a circulation port 43 that allows water that is to be treated to pass therethrough.

Abstract: A fluid filter providing several degrees of filtering is designed to be receivable in a filter container that is closable by a cover. The filter itself includes both an annular main filter element, through which fluid to be filtered can pass radially to undergo primary filtration, and a supplemental filter element, to which fluid discharged from the main filter element passes to provide supplemental filtration additional to the primary filtration. The main filter element, the supplemental filter element, or both may be oblong or circular in cross section. At least one of a pair of end caps disposed on opposed ends of the main filter element carries the supplemental filter element as well as one end of the main filter element. That end cap may or may not be permanently secured to the one filter element end.

Abstract: A dual flow filter element includes inner and outer closed loop filter media and inlet and outlet end caps, and having a given shape-in-shape configuration. A support frame extends axially from one of the end caps toward the other end cap and terminates at a termination position between one-fourth and three-fourths of the axial distance between the inlet and outlet ends. Combinations using pleated filter media include a first group of pleat tip ends which are exposed, and a second group of pleat tip ends which are fully potted. One embodiment includes axially offset inner and outer closed loop filter media.

Abstract: Disclosed are modular filter-in-filter elements, namely an outer filter element and an inner filter element which may be assembled to form a filter cartridge for use in separation methods and systems. The outer filter element typically functions as a coalescing element and the inner element typically functions as a particulate filter element. The disclosed filter cartridges may be structured for separating water from a hydrocarbon-based liquid fuel as the fuel moves through the cartridge from outside to inside.

Abstract: A cartridge filter assembly includes a depth filter element and a downstream second filter element. The depth filter element has a mass of melt-blown polymer filaments. The depth filter removes 0.5 to 10 micron sized contaminants at an efficiency of 90% or more. The depth filter preferably comprises multiple zones occupying different depths, with one or more melt-blown polymer filaments traversing two or more of the zones. The second filter element comprises nano-fibers having a diameter of 1 micron or less, and removes a material percentage of contaminants that are less than 1 micron in size, preferably less than 0.5 microns in size. The depth filter element may be in the form of a tube and the second filter element may be in the form of a pleated sheet located inside of the depth filter. The cartridge filter assembly may be used to pre-treat a feed water upstream of an RO membrane. The SDI of the feed water may be reduced to 3 or less or 2 or less.

Abstract: A dual stage filter includes an outer filter with a first media and an inner filter with a second media. A barrier is between the first media and the second media. The barrier directs fluid flow between the first and second media. The barrier creates a flow path between the first and second media, such that a working fluid, which is desired to pass through the first and second media, is directed by the barrier and flows through the second media, and such that another fluid, which is not desired to pass through the second media, is directed by the barrier and separates from the working fluid. Using the barrier, the dual stage filter can employ either or both upward flow and downward flow to achieve efficient fluid separation, for example fuel water separation in an engine fuel filter.