Abstract: Devices, methods, and system that prevent clotting of blood during blood-processing procedures such as hemofiltration, hemodialysis, and hemodiafiltration are described. A filter with a cap has a housing that is shaped to receive a blood filter. The housing has an inlet for blood and may have an outlet for waste and ultrafiltrate. The cap is attached to the housing. The cap has an outlet for blood and a port adjacent the outlet for receiving dilution fluid. Methods of use during blood-processing procedures to provide immediate hemodilution to blood exiting entering and/or exiting a filter are also described.

Abstract: A filter element includes a filter medium (10) extending between two end caps (12, 14) that are respectively connected to an associable end region (16, 18) of the filter medium (10). The filter medium is supported at least on one side on a supporting tube (20). At least one of the end caps (14) and/or at least one end region (16, 18) of the filter medium (10) has a contacting device (22) and/or the respective end cap (14) itself or its parts are embodied in such a way as to derive the electrostatic charges, especially occurring during the operation of the filter element to ensure that the charge generated on the filter medium (Meshpack) by tribo-electrical effects can escape towards a mass point or a mass site via the contacting device (22) or the respective end cap (14).

Abstract: A filter element (1) with a hollow-cylindrical star-shaped folded filter medium (2) and glued-on terminal disks (3) on at least one of the end faces of the filter medium (2) is proposed in which the respective end face contour of the filter medium (2), the intermediate space between the filter medium (2) and the respective terminal disks (3), and/or the respective contour of the terminal disk (3) is designed, for example, by slants (8, 9) or spacers (10), such that at the inner diameter of the hollow-cylindrical star-shaped folded filter medium (2) an enlarged gap for an adhesive connection (4) between the filter medium (2) and the respective terminal disks (3) is provided so that the folds at the inner diameter are thus safely adhesively connected.

Abstract: A contaminant adsorption filter element is provided that includes a self-assembled monolayers on mesoporous supports (SAMMS) contained in a filter element having a plurality of pockets such as a fluted filter media. The plurality of pockets are filled with mesoporous material that is functionalized for a target contaminant. A method of making a filter element having mesoporous material filled flutes is also provided.

Abstract: A filter element is particularly suitable as a “green” filter element because all of its parts are flammable for disposal of after use by incineration. The filter element has an annular pleated filter media, hard resinous end seals and compressible gaskets bonded directly to the end seals. In accordance with one embodiment, both the end seals and gaskets are applied to the ends of the filter media by sequential steps in an injecting molding machine. In accordance with another embodiment, the gasket is molded to the end cap to form an integral assembly and the end cap is then fixed to the filter media by adhesive or by heat bonding.

Abstract: A filter is provided by pleated filter media having a plurality of pleats defined by wall segments extending axially along an axial direction along an axis and extending transversely along a transverse direction between first and second sets of pleat tips at first and second sets of axially extending bend lines. The pleated filter media spans laterally along a lateral span along a lateral direction, with the wall segments being spaced from each other by lateral gaps. The pleats have a pleat depth along the transverse direction along the wall segments between the first and second sets of pleat tips. The pleat depth varies as the pleated filter media spans laterally along the lateral direction.

Abstract: A filter element (1) with a tubular folded bag (2) of folded filter material, which has a plurality of fold blades (3) adjacent each other in the longitudinal direction (10) of the folded bag (2) a closure cover (4) is attached at at least one axial end (7) of the folded bag (2). In order to provide a filter element which can be bent to any desired curved form while maintaining a high degree of filtration performance, and can be produced in a cost effective manner, the fold blades (3) of a folded bag (2) are provided with a combination of diagonal folds extending at an angle relative to each other such that the fold blades (3) in the longitudinal direction (10) of the folded bag extend back and forth and thereby form a three-dimensional crown structure (18). At least the outer margin of the closure cover (4) has a form corresponding to the crown structure (18) of the fold blades (3).

Abstract: A filtration module (10) is provided which includes a manifold (12), a filter cartridge (16) and a bowl (14) which houses the filter cartridge (16). The filter cartridge (16) and bowl (14) are connected to each other by a key (30) which is secured to flat surfaces (38) on the cartridge (16) to form a unitary construction. The filter cartridge (16) and a bowl (14) are in fluid communication with the manifold (12) in a manner which prevents mixing of a fluid feed to the module (10) and a permeate removed from the module (10).

Abstract: A pleated woven wire filter for use in a process vessel of a given process includes: a) a perforated core; b) a pleated woven wire filter media wrapped around the perforated core, the filter media having spaced apart pleats and an external filter media surface comprising the external peaks of the pleats; c) horizontal bands adjacent to and encircling the external peaks, the horizontal bands spaced apart and welded to vertical supports; and d) top and bottom end caps connected to the vertical supports, and sealed against top and bottom ends of the filter media with Vermiculite-coated fiberglass felt gaskets. In another feature of the invention, a required square footage of filter media, determined by flow rate calculations for the given process, is divided by a number between 33 and 34 to determine the inside diameter of the perforated core.

Abstract: Devices for separating impurities from the lubricating oil of an internal combustion engine, the devices at least having a filter element and a housing provided with a screw cap. The screw cap and the filter element include a detachable connection arrangement which can be brought into contact and are used to transmit axial tractive forces. A first device is characterized in that the connection arrangement can be brought into contact by rotating the screw cap in the loosening rotational direction thereof and can be disengaged by rotating the screw cap in the tightening rotational direction thereof. A second device also includes a centrifuge located in the same housing, a first connection apparatus, corresponding to the above-mentioned connection apparatus being provided between an intermediate cap and the filter element, and a second connection apparatus being provided between the screw cap and the intermediate cap.

Abstract: A fuel filter assembly includes a housing having an end supporting a first tube. The housing defines a cavity that is enclosed by a cover opposite the end. A diverter is arranged within the cavity and includes first and second sides with the first side adjacent to the housing end. The diverter includes a wall on the first side in sealing engagement with either the first tube or the housing end. The diverter is constructed from a first material forming a base and a second material supported by the first material defining at least a portion of the first side. The second material may be overmolded onto the first material. Preferably, the first material is a plastic and the second material is an elastomer forming a gasket suitable for providing a seal between the diverter and the housing. One end of the filter media is embedded in the adhesive on the second side of the diverter.

Abstract: A filter cartridge comprises a pleat pack including filtration media for removing particulates from a particulate laden fluid stream moving in a first direction through the filtration media. The pleat pack is formed into a tubular configuration with a plurality of circumferentially spaced pleats. The filtration media is periodically subject to a cleaning fluid stream moving in a second direction opposite to the first direction. Potting material is at axially opposite end portions of the pleat pack to maintain the filtration media in the tubular configuration. A support tube is located on a first side of the pleat pack downstream of the filtration media in the first direction of fluid flow. A retention device limits movement of a portion of the filtration media when subjected to the periodic cleaning fluid stream. The retention device comprises a metal band and located on a second side of the filtration media opposite the first side.

Abstract: A filtration module is provided which includes a manifold (100), a filtration cartridge (104) and a bowl (102) that houses the filter cartridge. 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.

Abstract: A filter element (10) is provided which can be used to remove microsize contaminant particles (i.e., about 0.5 ?m to about 25.0 ?m) from aviation fuel. The filter element (10) includes a cylindrical pleated filter media (14) and an exoskeleton support structure (16) supporting the filter media (14). The filter media (14) has a pleat density of about eight to about thirteen pleats per inner diameter inch and is formed only from cellulose-fiber-free and woven-mesh-free layers. The exoskeleton support structure (16) is a screen which is thermally bonded to the pleats' peaks in such a manner that the filter media (14) is sufficiently supported without conventional endoskeleton support layers.

Abstract: Fluid treatment assemblies and elements may include a plurality of axially extending pleats and may be used to treat fluids, including gases, liquids, or mixtures of gases, and/or solids, in a crossflow mode of operation. For example, some fluid treatment assemblies and elements may be used to remove one or more substances from the fluid and may then function as separators, including filters and concentrators. Other fluid treatment assemblies and elements may be used to transfer substances between two fluid streams and may then function as mass transfer devices.

Abstract: A filter media and liner pleat block and method involves melting the filter media at mating pleats to form a closed-loop-bonded filter media and liner pleat block.

Abstract: Fluid treatment elements and methods for treating fluids may be used to treat fluids, including gases, liquids, or mixtures of gases, and/or solids, in a crossflow mode of operation. For example, some fluid treatment elements and methods may be used to remove one or more substances from the fluid and may then function as concentrators or filters or separators. Other fluid treatment elements or methods may be used to transfer substances between two fluid streams and may then function as mass transfer devices.

Abstract: A replacement filter for conventional throw-away spin-on oil filter cartridge on an internal combustion engine. The replacement filter uses a porous metallic filter element, preferably a woven stainless steel, pleated filter element, within a housing physically simulating the conventional throw-away spin-on oil filter cartridge. The housing is disassembleable, typically by unscrewing the top cap of the housing, for removal, cleaning and reuse of the filter element. This avoids the problems of cost and availability of replacement filters and of disposal of used filters. Various embodiments are disclosed.

Abstract: The chrysanthemum-shaped element is in a cylindrical shape in which folds are formed and inner surfaces of adjacent folds are bonded at their top and bottom edges. The chrysanthemum-shaped element includes (A) an element body composed of a filter medium having a filter paper and a low-melting fiber layer formed on a surface of the filter paper on the inner surface side of the folds at least at the top and bottom edges of the filter paper; and (B) bonding sections formed at the top and bottom edges on inner surfaces of the folds by heat-adhesion of the low-melting fiber layer. The low-melting fiber layer is made of a fiber having a lower melting point than that of filter paper materials that form the filter paper and/or compound fibers which contain a fiber of a lower melting point than that of the filter paper material.

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 removably located in a housing having a central valve structure. The element has an end cap with a valve actuating portion. The valve actuating portion includes a cylindrical portion and an annular base projecting radially inward from the cylindrical portion. The valve actuating portion includes a plurality of thin, flat keys spaced around the annular base and projecting radially inward from the cylindrical portion and axially outward from the base. The keys engage the valve structure in the housing when the element is installed, and open up a flow passage through the housing.

Abstract: A filter tube frame for use with a filter bag house. The filter tube frame includes an end cap having a pivotable handle attached thereto to facilitate removal of the tube frame from the bag house. The handle includes a lever surface adapted to engage a tube sheet surface, thus, during use, providing a force to urge the end cap away from the tube sheet and unseat the filter tube frame from the tube sheet.

Abstract: A filter cartridge has a keyed end cap which is configured and shaped for unlocking an associated valve mechanism that comprises a latch device and a valve. In this manner, when the fuel filter cartridge is placed into a fuel filter housing having such a latch and valve mechanism, the fuel filter cartridge is operable therein to filter fluid and pass the fluid into a standpipe contained within the fuel filter housing. The fuel filter cartridge of this type generally includes pleated filter paper which is disposed between two opposed end caps. The keys may be provided along the bottom end cap.

Abstract: An adapter for a water supply system includes castlellations around the periphery of the mounting hub. The castellations eliminate the continuous sealing surface required for a standard filter end cap to effective seal to the adapter. The mounting hub has ribs on the internal periphery to prevent insertion of filter cartridge end caps with a flat O ring seal or with an O ring seal around the periphery thereof.

Abstract: A filter cartridge which is environmentally friendly in that it is made up of components which are all incinerateable. The ends of a filter element are sealed using potting compound and plastic endcaps. The upper endcap, which is closed, has a pressure relief aperture associated therewith to prevent bowing. In a plugged filter condition the high downward pressure introduced on the upper endcap is compensated by providing the cartridge with centering ribs which bottom on an associated ledge in the housing to provide a positive stop for the top endcap, preventing it from being driven down into and through the filter element. Rubber gaskets are associated with the respective endcaps, and are reliably secured to the endcaps by being snap fit into grooves molded into the plastic of the endcaps. The lower endcap utilizes a simple radial seal gasket which is both highly effective and also positioned to avoid structural crushing forces on the cartridge. A keying system prevents the installation of improper filters.

Abstract: The present invention comprises concerns a novel air cleaner having an inner mesh barrier. This inner mesh barrier has a plurality of openings, and is generally cylindrical, having an inner mesh barrier liner surface, and an inner mesh barrier outer surface. Furthermore, the air filter has an upper retaining segment and a lower retaining segment, and a filtration means. Furthermore, the lower retaining segment of the air filter has an outer surface having an integral coupling means protruding outward there from. The integral coupling means of the present invention is generally molded from the same material as the lower segment of the air filter. Furthermore, the integral coupling means has an inner surface and an outer surface, wherein said outer surface of said integral coupling means has a plurality of threads for thereby attaching the air filter to a suitable device.

Abstract: An electrically regeneratable filter element comprises at least two flanks, each of these flanks comprising a stiff material layer. Each of these flanks has at least one thermally and electrically insulated side. The filter element comprises further a metal fiber fleece being pleated according to pleating lines providing an edge with pleat openings. The metal fiber fleece is mounted between the flanks, in such a way that the thermally and electrically insulated sides make contact with the edge, meanwhile these sides closing the pleat openings.

Abstract: A filter element includes a ring of filtration media circumscribing a central axis, and first and second end caps. The first end cap includes i) an annular body portion defining a central opening around the central axis, sealingly bonded to the first end of the media ring, ii) an annular sealing ring having an annular, peripheral resilient sealing portion; and iii) axial support stanchions around the periphery of the body portion. The stanchions support the sealing ring at a location spaced apart from the body portion, and define radial flow openings between adjacent stanchions. One or more non-radial flow members extend from each stanchion along the outer surface of the annular body portion to direct flow in a spiral or helical manner, where the flow then passes through the flow openings and downwardly along the outer surface of the media in a swirling manner.

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 comprising a filter cartridge and a housing having at least one fitting and defining a chamber, the filter cartridge being disposed in the chamber, wherein the housing includes a fluid conduit which extends axially from the fitting along the periphery of the filter cartridge, the fluid conduit being isolated from the filter cartridge chamber along a substantial portion of the length of the fluid conduit.

Abstract: A filtration module (10) is provided which includes a manifold (12), a filter cartridge (16) and a bowl (14) which houses the filter cartridge (16). The filter cartridge (16) and bowl (14) are connected to each other by a flange (15) on an end cap (30) of the filter cartridge (16) which fits into collar (34) on the bowl to form a unitary construction. The filter cartridge (16) and bowl (14) are in fluid communication with the manifold (12) in a manner which prevents mixing of a fluid feed to the module (10) and a permeate removed from the module (10).

Abstract: A fluid filtration system includes a filter receiver located in a fluid reservoir housing and a replaceable filter module adapted to mount in the filter receiver. Fluid to be filtered is exposed to a filter media included in the filter module and mounted in a filter chamber provided in the filter receiver. The filtered fluid is discharged into a fluid reservoir located in the fluid reservoir housing and outside the filter receiver. Fluid is then pumped from the fluid reservoir to a fluid user and fluid discharged from the filter user is conducted to the filter chamber for filtration in the filter media.

Abstract: A filter has a longitudinal axis with an inner diameter defined by a hollow longitudinally extending center. The filter has fingers extend radially outwardly arcuately from the longitudinal axis. The fingers have base ends near the longitudinal axis and outer edges at extremities spaced from the longitudinal axis. The outer diameter of the filter is defined by the outer edges of the fingers. The filter is formed from a sintered porous molded thermoplastic or another material resulting in a filter more rigid than standard filters. The fingers are spaced apart from one another a predetermined, substantially fixed distance to form slots therebetween sized to capture contaminants therein.

Abstract: Providing a filter device with various functions, such as remarkable improvement of the throughput of the downstream filter, ion-removing property of the upstream filter. A filter element comprises an upstream filter and a downstream filter made of the same or different material and installed into one housing or container, wherein said downstream filter is fixed to said housing, said upstream filter is fixed to said downstream filter, both filters are concentrically arranged to each other, and when the downstream filter is not contaminated, only the upstream filter can be replaced with fresh one.

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 removably located in a housing having a central valve structure. The element has an end cap with a valve actuating portion. The valve actuating portion includes a cylindrical portion and an annular base projecting radially inward from the cylindrical portion. The valve actuating portion includes a plurality of thin, flat keys spaced around the annular base and projecting radially inward from the cylindrical portion and axially outward from the base. The keys engage the valve structure in the housing when the element is installed, and open up a flow passage through the housing.

Abstract: A filter device includes a pot-shaped filter housing (1) that defines a longitudinal axis along which a filter element (13) can be inserted into and removed form the filter housing (1). A retaining device detachably retains the filter element (13) in the filter housing (1) and has first and second retaining elements on the inner side of the filter housing (1) and on the filter element (13) and interacting with one another. At least one set of the retaining elements has a shape coaxial to the longitudinal axis of the filter housing (1) and forms at least a part of a thread. When the filter element (13) is rotated about its longitudinal axis, it is locked in a form-fit.

Abstract: A filter element comprises a pleated metal fiber fleece which is pleated according to pleating lines, providing an edge with pleat openings to be closed to make gas flowing through the metal fiber fleece. The filter element comprises at least two flanks, each of these flanks comprises a ceramic plate. The metal fiber fleece is mounted between the ceramic plates of both flanks, while flanks exercising a clamping force on the edges of the metal fiber fleece in a direction essentially parallel to the pleating lines, meanwhile closing the pleat openings.

Abstract: An improved disposable filter cartridge for use in a filter housing includes a pleated filter member and first and second plastic end caps mounted to the ends of the filter member. The first end cap has an inner edge defining a central opening. In one embodiment, an elastomeric annular gasket is removably mounted to the inner edge of the first end cap. In another embodiment, a predetermined surface of elastomeric annular gasket is adhered to a confronting surface of the first end cap. At least one annular ridge projects into the first end cap opening. The at least one ridge abuts the outer surface of an inlet tube to form a fluidic seal with the inlet tube when the disposable filter cartridge is mounted within a cooperative filter housing. The second end cap may include an elastomeric annular gasket having an angled sealing surface configured to form a seal against the confronting end of an inlet tube.

Abstract: A filter element comprises a pleated metal fiber fleece being pleated according to pleating lines providing an edge with pleat openings to be closed in order to make gas flowing through the metal fiber fleece. The filter element further comprises at least two flanks, each of these flanks comprising a stiff material layer. The stiff material layer and the metal fiber fleece are connected using a layer of ceramic adhesive, which prevents direct contact of the metal fiber fleece over the length of the edge of the metal fiber fleece with the flank. Meanwhile the flanks, being essentially perpendicular to the pleating lines, closing the pleat openings in order to prevent bypasses.

Abstract: A filter element comprising a pleated metal fiber fleece is pleated according to pleating lines, providing an edge with pleat openings to be closed to make gas flowing through the metal fiber fleece. The filter element comprising at least two flanks, each of these flanks comprises a thermally and electrically insulating fabric and a stiff material layer. The thermally and electrically insulating fabric is present at one side of the stiff material layer, providing a thermally and electrically insulated side to the flank. The metal fiber fleece is mounted between the thermally and electrically insulated sides of both flanks, which exercise a clamping force on the edges of the metal fiber fleece in a direction essentially parallel to the pleating lines, while the flanks closing said pleat openings.

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 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 system for spas and swimming pools is disclosed having a primary filter containing a porous membrane made of multiple plies. A fluid purifying medium in the form of irregularly shaped copper and zinc alloy particles is captured between the plies and placed in contact with the spa water to kill bacteria and remove heavy metals, precipitates and chlorine as the water cycles through the filter. A micro filter for filtering particles surrounds the primary filter, the micro filter and primary filter are mounted in a chamber in fluid communication with the spa or pool. Another particulate filter is positioned upstream of the micro filter and primary filter. A secondary micro filter and primary filter provide filter capacity augmentation through a parallel flow path during periods of increased demand.

Abstract: A filter assembly for filtering fluids which may be readily disassembled includes a perforated center tube assembly which is fluid-tightly connected at one end to an injection molded plastic head and is closed at its other end; an injection molded plastic bowl having one open end and a semi-closed second end; a disposable cylindrical plastic filter element adapted to fit within the plastic bowl and slip over the perforated center tube assembly in close proximity thereto but with no physical retention means between the plastic filter element and the center tube assembly. The assembly includes a releasable seal between the plastic filter element and the center tube assembly. The plastic head further includes an annular base provided with injection molded threaded fittings whereby it can be attached to a fluid supply and unfiltered fluid can flow into the plastic bowl and filtered fluid can flow out of the plastic bowl.

Abstract: A filter assembly includes a housing and an inner post with a fluid inlet passage extending in the housing. An outer post surrounds the inner post to define a fluid outlet passage. A filter cartridge is received around the inner post and the outer post. The filter cartridge includes a filter element. A first endplate, which defines a first opening, is attached to a first end of the filter element. A first seal is received in the first opening to seal between the inner post and the first endplate. A second endplate, which defines a second opening, is attached to a second end of the filter element. A seal is received in the second opening to seal the outer post with the second endplate. The housing and the filter cartridge define an outer cavity. The fluid inlet passage opens into the outer cavity to minimize back flushing of contaminants.

Abstract: The invention relates to a liquid filter, especially an oil filter, for cleaning lubricating oil, especially for internal combustion engines of automobiles, comprising an upright filter housing which contains a receiving area for a ring-shaped filter insert that is inserted into said receiving area, an inlet channel for unclean liquid, an outlet for clean liquid, and an additional discharge channel which is exposed when the ring-shaped filter insert is removed. An eccentrically projecting pin is moulded to a lower end plate and sealingly penetrates an opening of the discharge channel when the ring-shaped filter insert is introduced into the filter housing.

Abstract: A filter for separating contaminants from a gas stream, including (a) a housing having a housing body and a housing head, the housing head having an inlet for the gas stream to be purified, an outlet and a first sealing surface, and (b) a filter element accommodated in the housing, having an element head and an element body having a central element axis and an element interior. The element head has a second sealing surface which cooperates with the first sealing surface. A curved inlet manifold is formed between the inlet and the element interior. The inlet manifold is embodied partly in the housing head and partly in the element head such that the first and second sealing surfaces contact in a sealing plane at a 90° to 60° angle to the element axis. A radially arranged seal is provided on the sealing plane, forming one of the sealing surfaces.

Abstract: A filter cartridge includes a filter element that is adapted to filter fluid. The filter element defines a center post cavity constructed and arranged to receive a center post. The filter element has a first end and a second end. A first end plate is attached to the first end of the filter element. The first end plate defines a first end plate opening. A second end plate is attached to the second end of the filter element. The second end plate defines a second end plate opening. A seal is positioned in the second end plate opening to seal around the center post. A floating seal assembly is received in the first end plate opening to seal around the center post. The floating seal assembly includes a gasket and a gasket retainer. The gasket retainer retains the gasket against the first end plate to seal around the center post.

Abstract: A fluid filter includes a cylindrical pleated filter media disposed around a central perforated support core or self-supporting. An outer support sleeve comprising a extruded nylon, diamond-shaped mesh is stretched across the pleated media, and elastically conforms to the pleat peaks to structurally retain the pleats of the pleat peaks in fixed relation to one another. A bead of adhesive is then applied over the sleeve to fix the sleeve to the pleat peaks. End caps are disposed at opposite ends of the fluid filter.