Abstract: A filter cartridge housing formed of a manifold and a bowl containing a filter cartridge is disclosed. The filtration cartridge and bowl are connected to each other to form a unitary construction. The filtration cartridge and bowl are in fluid communication with the manifold in a manner which prevents mixing of a fluid feed to the module and a permeate removed from the module. A threaded ring substantially fixed in a position relative to either the bowl or the manifold is used to positively drive the manifold and bowl together and apart as needed and to form a secure and liquid tight seal between the two components when they are together. The threaded ring is held by a key in the keyway on of the outer surface of the bowl or manifold. The threads of the ring mate with the threads on the manifold or bowl. As the ring is relatively fixed by the key/keyway to its position on the bowl or manifold, it moves the bowl relative to the manifold as the ring is rotated onto or off of the mating threads.

Abstract: A filter assembly includes a water filter assembly having a filter element sealingly disposed in a cartridge, and having an inlet and an outlet, the water filter assembly being substantially dripless when charged with water and disposed substantially horizontally. A manifold assembly is fluidly couplable at an inlet to a source of water to be filtered and having a filtered water outlet and having mating members for removably mating to the water filter assembly and having a mounting means attached to said manifold providing rotational travel to the water filter assembly for installation, removal and replacement of the water filter assembly. A cartridge and a water distribution manifold assembly are further included.

Abstract: A filter cartridge for use in a filter system, in which the cartridge has no structural metal parts and is adapted for environmentally acceptable disposal. A pleated paper filter media is formed into a cylinder, and end caps at the axial ends of the cylinder hold the shape of the filter. Sealing gaskets are associated with the end caps. At least one side has a radial seal formed at the outer periphery of the filter cartridge to protect the associated end cap from higher a pressure region found at the outer periphery. The other axial end can have a similar radial filter in some applications, or in other applications, where flow at that end of the filter is not desired, can utilize an axial seal specially configured to protect the associated end cap from higher pressure at the outer periphery. Maintenance of lower pressure at the respective end caps places any axial loads on the filter in tension, and thereby prevents the application of axial crushing loads on the filter cartridge.

Abstract: The present invention provides a MEMS-based integrated particle identification system having a substrate, a magnetic structure, and a bioferrograph. The substrate includes a topside portion, backside portion and a flow system. The flow system includes a flow channel for accepting the flow of a stream of particles to identified. The magnetic structure is in physical communication with the topside and backside portions of the substrate and has at least two pole pieces. A plurality of pole piece embodiments are provided for generating a magnetic field that acts on magnetically susceptible particles in the flow stream. The bioferrograph has at least one sensor for identifying the presence and quantity of magnetically susceptible particles. A plurality of sensor embodiments are also provided.

Abstract: A filter cartridge which has an insertable center tube including an upper part (13) and a lower part (14) which can be coupled together in the cartridge by a snap fastener (21). The snap fastener (21) is configured such that it can be made without undercuts by simple injection molding dies. Therefore the filter cartridge with the center tube according to the invention is very economical.

Abstract: An improved, spin-on, bead-lock filter which is particularly adapted for use in a high-pressure oil filter in a diesel engine is provided. The filter includes a housing containing a filter medium and having an inwardly deformed periphery, and a cover assembly including a cover plate and a retainer plate having mutually spaced apart outer edges for forming a recess that receives the inwardly deformed portion of the housing. A gasket whose outer diameter is less than the inner diameter of the undeformed housing is seated in the recess. The smaller outer diameter of the gasket relative to the inner diameter of the housing allows the cover assembly to be easily positioned in place over the top of the housing during manufacture. Both a mechanical connection and a seal is formed between the cover assembly and the housing when the periphery of the housing is inwardly deformed pursuant to a bead rolling step in conformance with the assembly method of the invention.

Abstract: A filter/oil pan assembly for use in devices such as transmissions for vehicles and for use as oil pans in internal combustion engines includes a housing having an upper chamber and a sump, wherein a filter element is disposed between the upper chamber and the sump. The filter element includes a filter media having pleats which extend in the direction parallel to the direction of movement of the vehicle utilizing the filter element. In order to facilitate flow through the filter element, all interior surfaces of the housing slope toward a well in which the filter element is positioned and the filter element itself has laterally projecting flanges which slope downwardly toward the filter media.

Abstract: A liquid filter mainly intended for oil or fuel in internal combustion engines, in which the filter comprises a replaceable filter cartridge (17). The filter cartridge is housed in a housing having an essentially central symmetry comprising a housing base and a cover which is designed to be screwed on. In order to avoid leakage residual liquid when the filter housing is opened, especially if the liquid filter is mounted horizontally, a drain screw (22) is actuated before the housing is opened, and in order to achieve the highest possible degree of drainage, the drain screw is moved to the lowest possible position by rotating a threaded member (11) by at most 360°. Upon rotation of the threaded member, a sealing ring (13) ensures tightness in the base (10) of the housing in an area “a”. After all the liquid has drained out of the housing through the drain opening (23), the filter housing can then be opened to enable replacement of the filter cartridge without danger of leakage.

Abstract: A fluid treatment housing system for fluid filter elements including a first housing member, a second housing member and an interchangeable mounting plate on which one or more filter elements are mounted. The mounting plate may be a substantially flat plate or a basket type structure to accommodate various inside-out and outside-in filter elements. Additionally, more than one mounting plate may be used in a single system so that the system can include both pre and post fluid treatment.

Abstract: A disposable filter cartridge, in which the entire filter cartridge is disposable. The filter cartridge includes a tubular filter element substantially permanently retained to a lid such that the filter element cannot be removed from the lid without extreme force. The filter element includes a ring of filter media having ends potted in cup shaped end caps. The lid includes a central hub that is inserted through the opening in on of the end caps and ultrasonically deformed or flared radially outward to provide a lip that engages the top end cap for axial retention. The filter element is free floating and can be moved or tilted a small degree axially and can also be freely rotated relative to the lid.

Abstract: A bacterial fluid filter includes a filter element supported by a backing member. The filter element and backing member are sealed, e.g., with one or more o-ring seals, in a housing to provide a filter assembly capable of filtering fluid under relatively high pressure. In one embodiment, a filter element, backing member, and seal are disposed in a removable and disposable housing that is sized to fit within a filter housing.

Abstract: A single cartridge filter housing assembly for the filtration of etching liquids, deionized water, slurries and other liquids used in the semiconductor, pharmaceutical and chemical industries. It comprises a bottom housing and a top housing with an O-ring in between and a nut ring engaging top and bottom housings in order to compress the O-ring thus forming a sealed cavity for the cartridge. The bottom housing holds the nose of the cartridge in a concentric recess and holds the cartridge top centered by several radial protrusions in its mouth. An inlet and an outlet at the bottom of the bottom housing for the liquid to be filtered are coaxial for easy plumbing connections. The top housing carries a vent tube to use the air within to stabilize the liquid level in spite of pressure variations because of pump action.

Abstract: A trash trap for liquid manure disposal systems that has cylindrical housing with an open interior. The housing has a first end with an inlet port and an outlet port in its side wall. The cylindrical housing also has a removable cylindrical filter that has a fluid opening in its side walls and is detachably mounted along a centerline of the housing. The cylindrical filter has a diameter that is less than the inner diameter of the housing so that fluid can enter the housing through the inlet port and exit through the outlet port. Also, on the second end of the housing there is a detachable cap around an access opening.

Abstract: A filter device includes a tubular casing [10] with a closed bottom, a filter element [20] received within the casing [10], a lid [30] which closes an open end of the casing [10], and has a communication hole communicating the inside and outside of the casing [10] with each other, and a fastening member [50] fastening the casing [10] and the lid [30] together. A gap is formed between a peripheral wall [14] of the open end portion of the casing [10] and a peripheral surface [32] of that portion of the lid opposed to the peripheral wall [14].

Abstract: A fluid filter assembly includes a filter housing, a filter element, and an outlet conduit coupled to the filter housing to discharge liquid fluid from a filtered-fluid region in the filter element. An elongated grommet is mounted on the outlet conduit and positioned in the filter housing to seal against an outer surface of the filter element and an inner surface of the filter housing.

Abstract: A filter assembly includes housing enclosing a replaceable filter element. A support core is provided in the housing, and includes an extension and locking assembly. The element includes a ring of filtration media with a pair of end caps. The first end cap includes a central opening to receive the support core. The extension and locking assembly prevents the cover of the housing from being attached to the housing body without a proper filter element installed. The extension and locking assembly includes a bypass member and a locking member, which are in locking engagement when an element is absent in the housing. The second end cap includes internal protrusions which engage the locking member when the filter element is installed to disengage the bypass member from the support core, and allow the element to be inserted and the cover to be installed.

Abstract: A filter element assembly used to filter liquid-state process stream. The assembly includes first and second tubes. A ring is seated in one of the tubes. One or more filter elements extend from the ring into one of the tubes. The ring has a lip that extends beyond the outside of the tubes. Opposed open ends of the tube abut opposed surfaces of the ring lip. A seal surrounds the open ends of the tube and the ring lip. A clamp surrounds the seal. Liquid that flows between the ends of the tubes and the ring lip forces the seal against the clamp and the outer tubes to prevent the liquid from flowing beyond the seal.

Abstract: The invention concerns a motor vehicle fuel drawing assembly comprising a housing (200) having a ring-shaped chamber (220) and a filter (100) arranged in said ring-shaped chamber. The invention is characterised in that it comprises at least a plastic annular lip (126, 136), cast in one single piece linked to the housing (200) or to the filter (100), made of a material capable of being elastically deformed, and shaped along an oblique direction relatively to the axis O-O of the filter (100) and the housing chamber (220), such that said lip (126, 136) is urged to rest, with elastic deformation, and along a direction with tangential components by its free end (127, 137), against the surface opposite (286, 296), the other surface of the filter (100) or of the housing (200) arranged substantially transversely to the axis (O-O) of the filter (100) of the housing (200) chamber (220) to ensure tightness at that level between the filter (100) and the housing (200).

Abstract: A spin-on filter cartridge adapted to be mounted on a filter mount has a housing with an open end and a closed end. Adjacent to the closed end of the housing is a crimped portion defining an annular groove, the crimped portion retaining an annular support and having a radially extending shelf for supporting an end plate. An annular gasket having an annular channel for receiving the crimped portion of the housing has projecting rib which is received in the annular groove defined by the crimped portion. With this arrangement, the annular gasket is securely attached to the housing and is able to rotate independently of the housing, so that when the gasket is in abutment with the filter mount, the housing can be rotated without rotating the gasket.

Abstract: A ring-shaped filter element through which material can flow radially. Web material as is provided filter material which is folded in a zigzag shape and sealingly connected at its longitudinal sides relative to a ring-shaped end plate. The end plate is formed of a first area made of a first material, and extends peripherally and not covering a radial inner and/or outer edge area. A second area forms this edge area and is designed for a seal-tight placement onto a connecting part, of a second material. The ring-shaped filter element contains a second area having a second material which is foamed simultaneously onto the web material of the first material already connected fixedly with the web material.

Abstract: A novel surface treatment is provided for portions of filter media coming in contact with the filter media holder, such as a filter housing. In certain applications, the treatment is also applied to the filter media holder, depending on the application. Filter media having at least two distinct surface property modifications are provided in liquid filtration applications to enhance the performance of a filtration system, reduce the cost of the system, provide a visual means of detecting fluid bypass, and minimize fluid hold-up volume within the filter media, all with substantially no loss of performance performances parameters, even in steam sterilization applications.

Abstract: A cover encloses a filter cartridge in an outer housing. The cover has an unfiltered fluid inlet channel and a concentric filtered fluid outlet channel. The filter cartridge includes a filter media with a central passage. An upper endplate is provided on the upper end of the filter media, and the upper endplate has oblong openings defined therein. A separate seal retainer is attached to the upper endplate. The retainer has an outer body portion and a concentric inner body portion extending from the outer body portion. The outer body portion has a lower outwardly opening channel, and the inner body portion has an upper outwardly opening channel. An outer seal is provided in the lower channel to seal the filter cartridge with the housing. An inner seal is provided in upper channel to seal the inlet channel from the outlet channel in the cover.

Abstract: A fluid filter for spin-on mounting to a base includes an outer shell defining a hollow interior and a nutplate secured to the outer shell by forming an upper edge portion of the outer shell onto the nutplate. A filtering element is positioned within the hollow interior and the base provides fluid-in and fluid-out passageways for the fluid filter. To provide a face seal against the base and concurrently a radial seal against the formed edge, a retainer and gasket assembly is used. The retainer has a base portion which rests on the nutplate and an inclined portion which extends upwardly and inwardly. An elastomeric gasket with a unique cross sectional shape has a flat portion which rests on the inclined portion. With axial compression of the gasket by the base, the gasket compresses against the retainer and expands radially into sealing contact with the formed edge.

Abstract: A filter (12) has a resiliently compressible thermally and chemically resistive combined unitary frame and gasket member (22) extending along its perimeter (18) and supporting a filter media element (16) and sealed to both the filter media element and the housing (20). One or more flange portions (34, 72, 94, 96, 118, 130) have one or more hollow channels (36, 74, 90, 92, 120, 132) deformed by engagement with the housing and reducing required closure force of the housing thereagainst.

Abstract: Length-adjustable filter cartridges are provided which in preferred embodiments include at least one length-adjustable end cap attached to an end of a generally cylindrical filter body. The length-adjustable end cap most preferably includes an annular stationary ring member which is attached to one end of the filter body, and a moveable connection member slideably received within said annular stationary ring member so as to be moveable longitudinally relative thereto. A seal is formed between the stationary ring member and the moveable connection member so as to seal against fluid leakage yet permit relative axial movement (length adjustment) therebetween. In use, the filter cartridges may be adapted to fit conventional standardized bag filter cartridge housings even though the physical size and/or geometries of the metal support basket thereof is non-standard.

Abstract: A fuel filter includes a pair of housing portions defining an interior cavity. A filter element is provided in surrounding relation to a fuel pump. A diverter plate assembly supported in the housing in sealing relation with one of the housing portions, the pump and the filter element, includes a bypass valve with a ball member. The bypass valve is normally closed when the pump is operational, and fuel flow passes from the inlet, through the filter element, and through the pump to the outlet. When the pump is not operational, the bypass valve opens, and fuel flow passes from the inlet through the filter element, and then directly to the outlet, bypassing the fuel pump. The diverter plate assembly includes a segmented collar that couples the assembly to one of the housing portions; a lip seal sealing to the pump; an outer rim that seals to one of the housing portions; and an annular flange that seals to the filter element.

Abstract: A fluid filter has a filter element for filtering fluid. A nutplate having a threaded mounting portion is adapted to threadedly engage an externally threaded filter head. An inner seal retainer is positioned between the nutplate and the filtering element in order to define a hollow interior. The inner seal retainer has at least one stiff hollow web extending in a radial direction adapted to provide a space for transmitting fluid between the nutplate and the filter element. An inner radial seal is attached to the inner seal retainer for sealing the filter element with the filter head.

Abstract: A method of assembling a fluid filter begins with a step of aligning housing shells to form a housing. A seam is defined in an area where the housing shells contact one another. The housing shells surround and enclose a porous filter element, having an edge portion that is substantially parallel to an adjacent side wall of the housing. The next step involves heating the first and second housing shells in the area of the seam, such that the first and second end caps are fused together. Another step of the method involves moving molten plastic, from the seam area of the housing, inwardly to contact the filter element, such that the filter element becomes fixed in position in the housing. Preferably, the molten plastic is arranged to form a circumferential seal around the filter element. A filter made according to the method is also described.

Abstract: The invention relates to a filter cartridge (1) to be inserted in the filter feed trough of a filter for fluid flowing in a hydraulic motor or apparatus and for cooperating with a center tube (2) of said filter, said cartridge having a filter medium (3) and at least one end flange (4) joined to said filter medium, characterized in that said end flange (4) is extended by a projecting part (5) defining a cavity for lodging a gasket (7), and in that said gasket has at least one pressurizing duct from the inside of said cavity. The invention also relates to a corresponding filter cartridge (1)/gasket (7) assembly wherein said gasket has at least three lobes defining three fluid receiving areas.

Abstract: A vacuum filtration apparatus (900) for detecting microorganisms and particulates in liquid samples. The apparatus includes a base (901), an absorbent pad (991), a filter means (990), a funnel (930), and a lid (960). The funnel is releasably attached to the base, and may contain an integral flexible seal for releasably sealing the filter means to the base. The outer wall of the lid may be segmented to make it flexible, this flexibility allows it to be releasably attached to the funnel or the base. The apparatus is designed so that any funnel will fit any base, and any lid will fit any base or any funnel when all parts are manufactured to normal tolerances. The apparatus may contain a means to keep the filter means wrinkle free in both the dry and wet states.

Abstract: A filter assembly is described that includes a substantially recyclable filter cartridge inside a pressure vessel. The invented filter cartridge comprises substantially non-pressure bearing walls, except for a pressure-bearing neck that is adapted to withstand high pressures preferably in the range of about 500 psi from the inside. The walls of the filter cartridge that are incapable of withstanding significant internal pressure are surrounded on the outside by a pressure vessel. The invented cartridge need not seal to the pressure vessel, because the cartridge neck protrudes outside of the pressure vessel to seal directly to a filter head. The cartridge preferably includes a quick-disassembly mechanism for allowing quick and non-destructive access to the internal components and media of the cartridge.

Abstract: A chromatography column with filters having minimal volume. A stamped screen disk is coated with fluorocarbon polymer on both sides, leaving a center area open. The fluorocarbon polymer coating serves as a gasket, providing reliable sealing for pressure up to approximately 10000 psi. The chromatography column comprises a fitting having an internal cavity. A fluorocarbon polymer coated screen is placed within the cavity. A threaded capillary tubing is screwed inside the cavity. At the end of the capillary lies a compression screw solvent tubing connection.

Abstract: Oil or fuel filter includes a holder element with an inlet and an outlet for liquid, an outer container fixed to the holder element, and a filter insert housed in the outer container. The insert includes an inner container, a filter element and a perforated tube placed centrally in the filter element, all of these elements being glued to each other so that they form a replaceable filter unit with a collecting container for contaminants.

Abstract: A blown micro-fiber filtration unit having multiple overlapping layers of fibrous material and an active material applied over said layers. The fibrous material layers being fused together.

Abstract: A disposable filter cartridge, in which the entire filter cartridge is disposable. The filter cartridge includes a tubular filter element substantially permanently retained to a lid such that the filter element cannot be removed from the lid without extreme force. The filter element includes a ring of filter media having ends potted in cup shaped end caps. The lid includes a central hub that is inserted through the opening in on of the end caps and ultrasonically deformed or flared radially outward to provide a lip that engages the top end cap for axial retention. The filter element is free floating and can be moved or tilted a small degree axially and can also be freely rotated relative to the lid.

Abstract: The invention relates to a fuel filter for an internal combustion engine, comprising a filter housing (1) consisting especially of metal, and a filter element (6) and a pressure-regulating valve (7) located in said filter housing. The aim of the invention is to ensure that no noise originating from the pressure-regulating valve (7) is emitted. To this end, the pressure-regulating valve (7) is mounted in the filter housing (1) in such a way that vibrations are dampened.

Abstract: The invention relates to a filter device comprising at least one filter element (32), which can be accommodated inside a filter housing (22). Said filter device also comprises an inlet (16) for a fluid to be cleaned and an outlet (18) for the fluid cleaned by the filter element (32), whereby the filter element (32) is retained by at least one element retainer (106) of the filter housing (22). By virtue of the fact that a closing device (98) seals the interior (34) of the filter element (32) off from the environment when the filter element (32) is removed from the element retainer (106), a filter device is created which is improved with regard to the prior art and which, in particular, simplifies the necessary exchange of the filter element while imposing only a slight burden on the environment.

Abstract: A fuel filter cartridge assembly employs a two piece housing to house a replaceable filter unit. The filter cartridge assembly incorporates a key system to ensure compatibility of a replacement filter unit for a given cartridge assembly. Keys formed on the filter unit cooperate with keyways formed in the housing to ensure that only filter units having key structures may be used. Each key may have a different angular position, angular dimension and radial projection. By varying the dimensions of the keys and/or the positions and/or the number of keys, a composite compatibility matrix comprising an infinite number of configuration sets are available to differentiate between filter units having differing flow capacities, filter media, disposal options or other characteristics.

Abstract: Liquid filter arrangement with interchangeable filter element and including a pot-like filter housing in which the filter element is disassemblably inserted between a liquid inlet to the chamber and an outlet situated below, in the lower section of the filter housing, for filtered liquid from the chamber. In the liquid chamber is arranged a central tube about which is arranged the filter element which is provided at the bottom with an annular end piece sealingly surrounding the central tube, and is provided upwards with an end disc by which the filter element is fastened to a lid fastened sealingly in the upper section of the filter housing. When the filter element is in its fitted position, the end piece blocks the inlet to a draining duct in the central tube, which duct leads to a draining outlet from the chamber.

Abstract: A filtering chamber for a set for the administration of fluids is provided. The chamber includes a housing providing a passageway for the fluid in the administration set. Within the chamber is a filter of screen which filters the fluid flowing through the housing. The filter or screen is attached to the housing during molding of the housing without the use of bonding agents, resulting in a chamber component which may be produced automatically and economically.

Abstract: A toilet water-line filter (10) that is designed to protect a toilet's fill valve (62) from the intrusion of potentially damaging debris such as rocks, vegetation, etc. The filter (10) is comprised of a housing (12) and an internal filter (34) which consists of a mesh staining element (36). The filter (10) is attached between the toilet's fill valve (62) and a typical, flexible, water line (66). Debris that would normally pass into the fill valve (62) becomes trapped in the mesh staining element (36), from where the debris is easily removed.

Abstract: An oil filter assembly includes a filter housing and a release valve for regulating oil drainage from a filter chamber in the filter housing. A filter module is arranged in the filter chamber to engage the release valve. A first biasing element normally moves the release valve to an opened position allowing drainage of oil from the filter chamber to urge the filter module to cause the release valve to move against and overcome a biasing force generated by the first biasing element to the closed position when the filter module is installed in a oil-filtering position in the filter housing.

Abstract: To develop a filter device for filtering a hydraulic fluid with a filter housing, in which a filter element is disposed, in such a way that it ensures protection of a hydraulic pump and highly stressed hydraulic components and has a compact, easy-to-service form of construction, it is proposed according to the invention that the filter element comprises a first and a second subelement, the first subelement having a higher filter fineness than the second subelement and both subelements being insertable through a common insertion opening into the filter housing, and that it is possible for hydraulic fluid to be fed to each subelement via a separate supply inflow and for filtered hydraulic fluid to be discharged from both subelements via a common outflow. Furthermore, a filter element and a hydraulic circuit for a filter device of this type are proposed.

Abstract: Filter cartridge or housing construction for filtering a fluid medium such as a slurry having a filtration medium, and one or more end caps therefor. One end of the cartridge of this invention is sealed with a cap having a fluid inlet while the opposing end is sealed with a cap having a fluid outlet. The present invention provides an end cap design for a filter cartridge or housing that reduces the number of parts previously required for such end caps. In addition, once the end caps of the invention are assembled to the filter housing, they cannot be removed without destroying the housing and/or cap, thereby ensuring a permanent assembly.

Abstract: A manually pressurized water filtering container comprising an enclosure having a compressible wall terminating at an open neck and a removable, water permeable filter module and a cap adapted for receiving the filter module and for engaging and sealing the open neck. A sealing gasket is compressed between two sealing surfaces in one case by a retainer and in another case by the engagement of the cap on the container. Water forced out of the enclosure by compression of the wall moves through the filter module to reach the open neck and the cap.

Abstract: A fluid filter for spin-on mounting to a base includes an outer shell defining a hollow interior and a nutplate secured to the outer shell by forming an upper edge portion of the outer shell onto the nutplate. A filtering element is positioned within the hollow interior and the base provides fluid-in and fluid-out passageways for the fluid filter. To provide a face seal against the base and concurrently a radial seal against the formed edge, a retainer and gasket assembly is used. The retainer has a base portion which rests on the nutplate and an inclined portion which extends upwardly and inwardly. An elastomeric gasket with a unique cross sectional shape has a flat portion which rests on the inclined portion. With axial compression of the gasket by the base, the gasket compresses against the retainer and expands radially into sealing contact with the formed edge.

Abstract: A recharge and filter assembly includes a housing with a removable recharge and filter cartridge. The housing includes a canister with a removable cover allowing access to the cartridge. The cartridge includes a filter element comprising a ring of media and upper and lower end caps. The upper end cap carries a peripheral seal which provides a fluid-tight seal with the housing canister. An annular channel is provided between an annular portion of the upper end cap and the seal. An annular support member from the cover is received in the annular channel to support the upper end cap. Latching fingers on the upper end cap and a mating ring on the cover removably couple the cartridge to the cover. The cartridge further includes a recharge canister supported by tabs on the upper and lower end caps. Fluid is recharged by inhibitor material, while particulates and other contaminants are removed by the filter media.

Abstract: A cartridge filter includes a cartridge filter including an upper annular groove in an outer periphery thereof a top cover mounted to seal an open upper end of the cartridge filter, and a C-shape upper bracket mounted in the upper annular groove of the cartridge filter. A screw and a nut are provided for securing ends of the upper bracket together. The upper bracket includes a plurality of annular spaced pivot seats. A plurality of swivel studs are provided and each includes a first end pivotally attached to each pivot seat. Each swivel stud further includes a threaded second end and a handwheel threadedly engaged on the threaded second end for securing the top cover in place. The upper bracket further includes a flange extended radially outward for preventing deformation in the ends of the C-shape upper bracket and the pivot seats.

Abstract: A cover encloses a filter cartridge in an outer housing. The cover has an unfiltered fluid inlet channel and a concentric filtered fluid outlet channel. The filter cartridge includes a filter media with a central passage. An upper endplate is provided on the upper end of the filter media, and the upper endplate has oblong openings defined therein. A separate seal retainer is attached to the upper endplate. The retainer has an outer body portion and a concentric inner body portion extending from the outer body portion. The outer body portion has a lower outwardly opening channel, and the inner body portion has an upper outwardly opening channel. An outer seal is provided in the lower channel to seal the filter cartridge with the housing. An inner seal is provided in upper channel to seal the inlet channel from the outlet channel in the cover.

Abstract: An improved sealing grommet for a spin-on type fluid filter has an annular flange coupled to an interior wall of the grommet body which sealingly engages filter adapter standpipes of varying diameters. An annular cavity, formed by the interior wall of the grommet body and the annular flange, allows pressurized fluid within the annular cavity to exert forces against the surface of the cavity to thereby enhance the sealing engagement between the filter element, the base plate and the filter adapter standpipe.