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 filter assembly comprises a filter case having an opening end portion; a filter element inserted into the filter case; a set plate mounted to the opening end portion of the filter case and having an inlet and an outlet of fluid to be filtered; and a seal plate attached to the set plate and fixed to the opening end portion of the filter case by curling up an outer periphery portion thereof together with an edge portion of the opening end portion of the filter case. The set plate is mounted to the filter case with press fitting to ensure the mechanical contact to prevent the leakage of the fluid to be filtered. Thus, the filer assembly can effectively prevent leakage of fluid of high pressure, such as AT-fluid introduced therein.

Abstract: The invention relates to an apparatus for isolating nucleic acids from biological fluids and suspensions containing nucleic acids, a reaction compartment 17 for receiving an adsorption medium 100 being connected to a removal compartment 50, and the nucleic acids being able to be moved and enriched from the reaction compartment 17 into the removal compartment 50 by an electrophoresis apparatus 20a, 20b.

Abstract: The invention relates to a spin-on filter for filtering a flowing substance, especially to a filter for hydraulic liquid or lubricating oil in combustion motors. The filter comprises a casing, which is openable at one end, a substantially cylindrical replaceable filter means fitted inside the casing, the flow to be filtered having been arranged to pass through the filter means mantle, and a collar for connecting the filter with a device assembly, which includes inlet and outlet ducts for flow to be filtered. In accordance with the invention, the filter comprises a support member forming a solid extension of the collar, consisting of an axial spindle inside the filter means and of an end flange at its end opposite to the collar, the periphery of the end flange being tightly sealed against the inner wall of the casing such that the support member will receive the internal pressure within the casing axially.

Abstract: A fluid separation element assembly comprises a fluid separation element having a membrane unit and a wrapping material formed around the membrane unit, an anti-telescoping plate attached to at least one end of the fluid separation element at a condition free to be detached, and a feed water seal member for preventing feed water from leaking through a gap between the fluid separation element and the anti-telescoping plate. The membrane unit is formed by a separation membrane, a permeate carrier material and a feed carrier material which are spirally wound around a permeate collection tube. By providing the anti-telescoping plate detachably, when the separation membrane has reached its life, it is possible to reuse other members.

Abstract: The filter head and filter housing define a liquid flow inlet path, a first liquid flow outlet path, and a second liquid flow outlet path. A filter media construction is positioned within the housing. The filter media construction, in combination with the housing, defines an unfiltered liquid volume, and a filtered liquid volume. A first liquid flow inlet path directs liquid from the liquid flow inlet to the unfiltered liquid volume. A first liquid flow outlet path directs liquid flow from the filtered liquid volume to the first liquid flow outlet. A second liquid flow outlet path directs liquid flow from the filtered liquid volume to the second liquid flow outlet. A first valve assembly selectively opens the second liquid flow path to passage of liquid therethrough in response to a first selected liquid pressure level within the filtered liquid volume.

Abstract: The invention relates to an improved separation device in which a plate unit containing the filter comprises a separate abutment ring and a cassette which can be easily connected thereto, said cassette comprising at least one filter together with, if required, a frame belonging thereto so as to support the filter. If the filter consists of a flexible membrane, this is fitted into a special frame. However, if the filter is a rigid self-supporting filter of a porous material, for example, a ceramic filter or the like, a separate frame is not needed to support the filter.

Abstract: A multiple cartridge filter housing assembly for the high purity filtration of etching liquids, deionized water, slurries and other liquids used in the semiconductor, pharmaceutical and chemical industries. It comprises at least one upper and one lower cartridge within a bottom housing, a top housing and at least one extension housing. A vent tube in the top housing extending to the upper spacer ring in the extension housing generates a first air pocket between its lower end and the top of the housing assembly. The upper end of each cartridge is centered by a flow-through spacer ring. The lower end of each cartridge is sealed, against the pressure drop across the cartridge, and centered by an adapter ring. The adapter rings, except for the bottom one, have a downwardly extending tube with flow-through holes at its lower end such that secondary air pockets are generated above the holes and below the bottom surface of the adapter ring.

Abstract: In order to facilitate removal of an air filter from a housing, the air filter has a flexible tab which provides a finger grip. In a preferred embodiment, the flexible tab is disposed between a molded gasket and an expanded metal screen which covers the downstream area or dirty side of a pleated filter media.

Abstract: The filter cartridge assembly has a valve body having an interior flow passage, a filter across the interior flow passage, and a check valve assembly in the valve body. The filter removes particulates as small as 0.003 microns. A check valve element adjacent to a valve seat in the interior flow passage has a check valve poppet and a stem. The check valve poppet has a relatively narrow neck, and the check valve poppet is tapered inwardly from the outlet end toward the neck at an oblique angle relative to the longitudinal axis of the valve body that is substantially equal to the oblique angle of the annular valve seat.

Abstract: The invention relates to a spin-on filter (1) for filtering a flowing substance, especially a hydraulic liquid or lubricating oil in combustion motors. The filter (1) comprises a casing (7), open at one end, which is connected to a device assembly (6) including inlet and outlet ducts (4, 5) for the flow to be filtered, and a substantially cylindrical replaceable filter element (12) fitted inside the casing. The flow to be filtered passes through the filter element mantle, either radially-inwardly or radially outwardly. The cylindrical filter element (12) includes an end flange (16), designed such that its outer edge (17) simultaneously acts as a seal for the casing (7) end. The flange (16) can be made by injection-molding plastic in one piece and is equipped with flow openings (18) required for the flow to be filtered and communicating with the inlet or outlet ducts in the device assembly.

Abstract: A rod-shaped pipe filter for fluid lines having a fine-mesh pipe filter element, flowed through from inside to outside and providing a bypass function when the filter element is clogged, the fine-mesh pipe filter element, inserted by its inlet end into the fluid line in a known, sealed way, is arranged at a distance from the wall of the fluid line, is kept at a distance from the wall of the fluid line by means of reinforcing ribs with lug-shaped spacers, bears with its outlet end via a tapered surface against an offset of the fluid line and has here bypass openings which ensure a fluid overflow from the inner region to the outer region and to the branch to the unit to be supplied with fluid, even when the filter element is clogged.

Abstract: A filter assembly includes a replaceable filter element disposed within a filter housing. The housing includes a removable cover, and a fitting including an internal central conduit extending along the central axis of the housing. The central conduit is bisected along its length and has a pair of flow channels connected to a pair of ports in the fitting. Another port is provided in the fitting and a still further port is provided in the housing. The filter element includes a first circular imperforate end cap, and a second annular imperforate end cap dimensioned to receive the central conduit. First and second filter media loops are supported between the first and second end caps. An imperforate cylindrical wall is radially disposed between the first and second filter media loops. Annular seals are provided around the opening in the second end cap, at the inner end of the first filter media loop, and at the inner end of the cylindrical wall.

Abstract: A fuel filter comprises a head (96) having an inlet (100) and an outlet (102). The head is connected to an element (266) by a nipple portion (186) which has a valve element (196) therein. An actuating projection (222, 272) is engageable with the valve element to open flow through said nipple portion when the correct element is attached thereto. The actuating projection is further supported on a central portion (220, 276) which prevents connection to a nipple portion that extends too far into the element. According to a further embodiment, the filter includes a housing (412) with a removable element (424) mounted therein. The housing has an inlet port (414) in direct fluid communication with a chamber (418). The outlet port (416) is in direct fluid communication with a central standpipe (422). The standpipe has a flow element (442) movable therein for controlling the condition of flow openings (436) in the standpipe.

Abstract: A high pressure spin-on filter cartridge utilizes an end plate which is strengthened by four substantially triangular shaped gussets which project from an annular U-shaped bridge that supports an internally threaded hub member. The internally threaded hub member provides an outlet for the filter cartridge while a plurality of radially positioned inlet openings are positioned between the gussets. The gussets extend radially past a sealing gasket that seals the spin-on filter canister with a machine on which it is mounted.

Abstract: A filter cartridge includes a filter housing having a main housing portion and a removable end closure defining a filter element cavity. The main housing portion includes an open annular end having an in-turned annular lip with a series of receiving slots formed in the inner surface of the lip. A filter element is disposed within the housing cavity and includes an end cap with a series of axially-extending drive pins, and an axially-extending stand-off device, where the drive pins are axially longer than the stand-off device. A mounting hub having a central threaded collar for attachment to a base is disposed between the outer surface of the end cap and the lip of the main housing portion. The mounting hub includes a series of orientation through-holes which correspond to the location of the drive pins on the end cap.

Abstract: A sealing ring for use in connection with a filter bag assembly of a filter is disclosed. The sealing ring includes an annular body having an outer annular wall projecting from the body. The outer wall is flexible such that it can engage an adjacent surface of the filter in a liquid-tight manner for forming a seal between the surface and the sealing ring.

Abstract: A filter sheet positioned between plates (14) of a filter press has a fluid-impermeable wax layer (11) sealing the sheet's perimeter. The wax preferably comprises ethylene bis stearamide and has a durometer reading of about 75 to about 100 Shore A hardness at 25.degree. C. and 85.degree. C., a melt point of about 110.degree. C. to about 180.degree. C., and a viscosity of less than about 100 cp at 155.degree. C. The wax layer increases the useful life of the filter sheet while providing a sheet which is easily released from a filter press and which retains integrity along the seal during repeated hot water sanitations.

Abstract: A liquid filter apparatus includes a housing cup, end plate enclosing an end of the housing cup, a filter cartridge positioned within housing cup, and a gasket positioned between the filter cartridge and the end plate. The end plate has a gasket centering projection thereon. The gasket includes a centering depression positioned in engagement with the gasket centering projection of the end plate. The gasket may include a gasket for a lube filter, a gasket for a fuel filter, or a gasket for a coolant filter. A method for assembling a filter assembly includes steps of selecting a gasket from amongst a plurality of different shaped gaskets, and selecting a filter element from amongst a plurality of different filter elements. The gasket selected and the filter elements selected will depend upon the final intended application.

Abstract: An extension kit for adaptation to an existing filter housing provides a two-fold increase in filtering surface area, while inducing a vibration into a resultant filter housing structure which resultantly loosens entrapped impurities to extend the life and frequency between filter change-outs.

Abstract: A filter for filtering plastic melt prior to feeding the melt into an extruder nozzle, for example a thermoplastic film extruder nozzle, has preferably two filter housings for holding respective exchangeable filter cartridges. Both filter housings are articulated by hinges to a column mounting so that one filter housing can be serviced while the other filter housing with its filter cartridge is in a filtering position and vice versa. A single filter may be used alternatively. In both instances the column mounting may include at least one, preferably two, mounting columns.

Abstract: A fuel filter comprises a head (96) having an inlet (100) and an outlet (102). The head is connected to an element (266) by a nipple portion (186) which has a valve element (196) therein. An actuating projection (222, 272) is engageable with said valve element to open flow through said nipple portion when the correct element is attached hereto. The actuating projection is further supported on a central portion (220, 276) which prevents connection to a nipple portion that extends too far into the element. According to a further embodiment, the filter includes a housing (412) with a removable element (424) mounted therein. The housing has an inlet port (414) in direct fluid communication with a chamber (418). The outlet port (416) is in direct fluid communication with a central standpipe (422). The standpipe has a flow element (442) movable therein for controlling the condition of flow openings (436) in the standpipe.

Abstract: A filter, in particular, a fluid filter of the "spin-on" type, comprising a head with an inlet space and an outlet space and with a coaxially extending connecting spigot, a housing with one open end, said housing containing an annular-cylindrical filter element and having a terminal edge that confines said open end and sealingly engages a groove provided in the body of said head and positioned coaxially around said connecting spigot, as well as an annular disc-shaped intermediate piece screwed onto said connecting spigot and supporting said filter element. An edge portion of said intermediate piece extending beyond said filter element is screwed into said housing and is provided with passage openings. Head, intermediate piece and filter housing are sealingly assembled with one single ring.

Abstract: A seal arrangement for fluid filters is provided. The seal arrangement generally concerns compressing a gasket between selected portions of the filter base and filter cartridge. A preferred frusto-conical configuration is provided, to advantage. Methods of assembly and use are described, as well as preferred filter base configurations and preferred filter cartridge configurations.

Abstract: A fluid filtering apparatus for a vehicle, which comprises: a filter element (2) provided with an element body (20) having a tubular shape and with a sealing member (21, 21) having a plate-shape, which is joined to each of opposite ends of the element body (20); a filter case (1) for receiving the filter element (2); and a pair of holding members (3, 4) coming into close contact with the sealing member (21) of the filter element (2) in an axial direction of the filter element (2) so as to divide an inside of the filter case (1) into a dirty-side zone (C1) and a clean-side zone (C2), between which the filter element (2) is placed. The sealing member (21) is joined to the element body (20) by ultrasonic fusion, which is applied exclusively to an outer peripheral portion (210) of the sealing member (21).

Abstract: A liquid filter includes a barrel defining a cylindrical water chamber having a neck at the middle, a raw water inlet at the bottom side, and a clean water outlet at the top side, a suspension board suspended in the water chamber, a pneumatic cylinder operated to reciprocate pressure means through the suspension board in and out of the neck of in cylindrical water chamber, bundles of fibers respectively suspended from the suspension board for removing solid matter from upward flow of water passing through, a weight board connected to the bundles of fibers and suspended in the water chamber below the neck, and a fabric filter suspended in the water chamber below the weight board, wherein the sizes of the filtering open spaces in the bundles of fibers are reduced when the pressure means is lowered into the neck; the sizes of the filtering open spaces in the bundles of fibers are expanded when the pressure means is lifted away from the neck.

Abstract: A combination disc and sealing ring for a filter assembly is provided. The disc is an annular thermoplastic disc having a central aperture. The disc includes an upper side and a lower side and the upper side of the disc includes an annular thickened area that extends upward from the upper side of the disc and that is spaced radially outward from the aperture of the disc. The annular thickened area is thermally welded to a sealing ring. The height of the annular thickened area is at least one-third the height of the sealing ring. The sealing ring further includes a central aperture that has a common axis with the central aperture of the disc. The sealing ring also includes a compressible area radially disposed between the aperture of the sealing ring and the annular thickened area of the disc.

Abstract: A filter device has two flow paths. The first flow path has at least one cap and fluid port. The second flow path surrounds the first fluid flow path and has at least one cap that overlaps the cap of the first fluid flow path. The second flow path also has at least one fluid port. The filter device provides a simple arrangement that is easily disinfected or sterilized.

Abstract: Described is an apparatus for the contamination-free isolation of nucleic acids from biological fluids and suspensions containing nucleic acids comprising: a reaction compartment for holding an adsorption medium laden with nucleic acids; connected via a channel to a removal compartment; wherein the nucleic acids can be moved by an electrophoresis device from the reaction compartment into the removal compartment and enriched there; and the reaction compartment can be charged via a charging orifice and drained via a draining orifice being located essentially opposite of the charging orifice.

Abstract: An improved, reduced waste oil filter has a concave housing having a first end, a fluid inlet port and a fluid outlet port. A concave cover is removably and sealably attached to a second end of the housing providing a closed area with which the inlet and outlet ports communicate. An elongated cylindrical disposable oil filter element is supported within the closed area. The filter element has a perforated center tube, a first end of which detachably communicates with the fluid outlet port, the other end of the center tube being closed. The center tube has a filter media there around so that fluid flow into the closed area through the inlet port flows through the filter media and into the center tube to pass out through the outlet port. The filter element has a length greater than the internal depth of the cover so that when the cover is removed from the housing a portion of the length of the filter element extends exteriorly of the cover to facilitate easy removal and replacement.

Abstract: A filter assembly includes a housing having a cylindrical side wall and a first and second end walls at either end of the cylindrical side wall. The first end wall has a fluid inlet port for receiving fluid to be filtered and at least one fluid outlet port for discharging the filtered fluid. The second end wall is easily removable from the housing, and includes a pressure-activated sensing device preferably extending centrally within filter media to an outlet. The filter media can comprise either a single filter element or a pair of nested filter elements, and is supported between the upper and lower end walls. The pressure-activated sensing device includes a piston assembly which is responsive to a pressure drop across the filter media. A first flow path is provided to the upstream side of the piston assembly from the inlet to the filter assembly, while a second flow path is provided to the downstream side of the piston assembly from the downstream side of the filter media.

Abstract: A disposable separation module is disclosed which is capable of connecting to a fluid processing system in a quick-connect fashion. The module includes a housing containing a separation element with a plurality of fluid connectors on one end of the housing which are parallel to and exclusive of each other. This arrangement provides for essentially simultaneous engagement and fluid tight sealing of the fluid connectors to corresponding mating connectors on the fluid processing system. A retention mechanism is included which retains the entire module in fluid tight engagement by a single action without producing relative motion between the mating connectors.

Abstract: By making the fluid seal an integral part of either the filter element or the filter housing, the reliability of fluid filter assemblies is improved. In addition, the process for manufacturing filter assemblies and their individual components can be more easily automated.

Abstract: An oil exchange apparatus (16, 96, 126) and its assembly with an arrangement (17) of fluid flow lines (112), (108), for lubricating a system, such as an engine (15, 145), while providing for a quick exchange of the apparatus (16, 96, 126) with another one when another batch of oil is to lubricate the system. A filter (30, 103, 135) is mounted and disposed in a receptacle (21, 97, 128); inlet conduits (144, 109, 132) and outlet conduits (34, 105, 136) are mounted to the receptacle (21, 97, 128) and by which oil flows in and out of it in the operation of the system. A vacuum or vent conduit 43 also is mounted to the receptacle in each of its embodiments. In one embodiment, all the conduits (34, 44, 43) are mounted in a top housing component (22) of the receptacle (21). In other embodiments, inlet (109, 132) and outlet (105, 136) conduits are mounted at the receptacle's bottom (101, 130), while the vacuum/vent or third conduit (115, 141, 156) is at its top (102, 142).

Abstract: A fluid filter for assembly onto a filter head includes a combination of features such that the assembly of the fluid filter onto the filter head establishes radial flow paths within the fluid filter. The filter head includes an externally threaded outer wall and includes an annular inner wall which defines a flow opening. The inner wall is shaped with a protruding portion and a substantially horizontal bearing surface. The fluid filter includes an enclosing outer shell and a filtering element positioned within the outer shell. A support spring is positioned in the base of the outer shell so that it is axially positioned between the outer shell and the filtering element. An internally threaded nutplate is assembled to the outer shell and threadedly engages the externally-threaded outer wall of the filter head. An inner seal is positioned between the nutplate and the primary filtering element and is designed so as to define a hollow interior.

Abstract: Filter press apparatus comprises a plurality of substantially parallel filter plates assembled as a unit and located within a substantially rigid outer shell to provide a closed vessel to which can be supplied medium under pressure to be filtered via the plates, a substantially impermeable primary membrane lining the shell for forming a substantially incompressible boundary wall to the unit on supply of pressure medium to the space between the primary membrane and the shell, and a secondary membrane having an intermediate extent between the primary membrane and the unit which, with the primary membrane urged towards the unit, moves axially with the unit and slides relative to the primary membrane to eliminate stress in the primary membrane during the compression stage.

Abstract: To provide a filter frame which enables a filtering medium to be easily renewed on a site and makes it possible to provide a filter at a low cost.The filter frame comprises a pair of frame elements capable of being integrally coupled together through flange bonding, each frame element comprising a passage portion allowing the passage of a fluid to be filtered and a flange portion outwardly disposed at a peripheral end portion of said passage portion, and that each of said flange portions has at least one bending portion, and said two flange portions, when coupled together, are engaged with each other based upon at least one tongue-in-groove connecting portion with said filtering medium being sandwiched between said flange portions.

Abstract: A canister oil filter for an internal combustion engine comprising a plurality of filter elements with seals on each end of each filter, the filters being stacked end to end within the tubular housing, an oil inlet and outlet disposed in one end of the canister and a spring biased retainer collar, which keeps pressure on all of the end seals, disposed in the same end of the canister as the oil inlet and outlet with the bias of the spring and the force from the impinging incoming oil acting generally in the same direction, to form a canister with improved filter sealing.

Abstract: A filter assembly particularly suited for a gasoline fuel pump includes a reusable filter element. The filter assembly has a surrounding housing and a base portion. The base portion including a surface for supporting the filter element and a central stand pipe having a thread formation for engaging an outlet tube of an adapter mounted to the top of the housing. Engagement of the stand pipe to the outlet tube pressing a sealing surface of the housing to a sealing surface of the adapter. The filter element can be retained by a retaining ring threaded onto the stand pipe or by a retaining ring assembly which functions to retain the filter element and also to provide sealing surfaces between the housing, the retaining ring assembly and the adapter. The base can also be made unitary with the housing.

Abstract: The invention relates to a filter cartridge for a filter for filtering liquid or gaseous media comprising two disks and a substantially hollow cylindrical filter member arranged inbetween the two disks, with the medium to be filtered flowing through the filter member, with at least one of the two disks provided with a central aperture whereby the filter cartridge is axially mountable onto a medium inlet pipe or outlet pipe with at least one seal sealingly positioned inbetween, and wherein the filter cartridge is detachable from the pipe for replacement. The filter cartridge is designed as a replacement filter cartridge for replacing common filter cartridges having metal parts, wherein the filter consists of paper and/or cotton and/or felt and/or thermally usable plastic non-woven fabric, wherein the front disks are formed of thermally consumable plastic and the seal is formed of a flexible thermally consumable material.

Abstract: A fuel filter assembly includes a housing (12) with a removable element (24) mounted therein. The housing has an inlet port (14) in direct fluid communication with a chamber (18). The outlet port (16) is in direct fluid communication with a central standpipe (22). The standpipe has a flow element (42) movable therein for controlling the condition of flow openings (36) in the standpipe. The element includes projections (88) for engaging recesses (90) in a cover (28) to selectively latch the element and cover together. The cover further includes a cover projection (82) for supporting a projection (78) on end cap (60) of the filter element, which opens flow into the standpipe only when the element is installed. When the element is removed, the flow element prevents the introduction of contaminants into the standpipe.

Abstract: A filter assembly is disclosed which includes a downwardly sloping skirt portion, a gasket, filter media, and a supply suction tube. The gasket is integral with a top section of the skirt portion. The filter media, which may be pleated for increased filtering capabilities, is positioned at the bottom of the skirt portion such that unfiltered fluid will be gravity biased to pass through the filter media. The suction tube is integral with the skirt and has a first end and a second end. The first end is adapted to be connected to a pump, while the second end extends through the skirt such that the filtered fluid can be drawn through the suction tube when the pump is activated.

Abstract: A continuous flow filter changer for a fluid having a filter carrier assembly for intermittent sliding transition displacements in a filter channel to align adjacent filters thereon successively with a filter aperture in the flow passage. The duration of each such transition is substantially less than that between transitions. A ring shaped seal sealingly connects between the flow passage upstream thereof and a filter aligned with said aperture to prevent fluid flow except through said filter. The clearance for sliding between the filter carrier assembly and the filter channel is controlled to allow for such displacements while limiting the fluid leakage from the filter channel during a single transition to a predetermined level.

Abstract: A holding device for a filter element is disclosed. More particularly, the holding device includes a body having upper and lower surfaces. The lower surface is sized and shaped so as to engage an end of an associated filter element. The holding device also includes a compressible member, which is positioned on the upper surface of the body, and a connecting mechanism for directly and movably connecting the body to a body of at least one other identical holding device.

Abstract: A spin-on filter unit for filtering liquids which may be readily disassembled and which utilizes a perforated center tube support disposed within a housing canister having both an open end and a closed end, a mounting head assembly which includes a bayonet connector mechanism adapted for releasable engagement with the open end of the housing canister, and a spring mechanism mechanism which acts upon the center support tube to urge the mounting head assembly bayonet connection mechanism into releasable engagement with the open end of the housing canister after rotation of the mounting head assembly about its center axis relative to the housing canister.

Abstract: A fluid filter assembly which is constructed and arranged to threadedly mount onto an engine block mounting base includes an enclosing outer shell, a filtering element positioned within the outer shell so as to define an annular clearance space between the outer shell and the filtering element. A nutplate is assembled to the outer shell so as to close the outer shell and provide an internally-threaded mounting portion for attachment to the engine block mounting base. The sidewall which defines the threaded mounting portion is free of any flow openings therethrough. A seal arrangement including an inner seal positioned between the nutplate and the filter element and an outer seal positioned between the engine block mounting base and the nutplate is provided as part of the fluid filter assembly.

Abstract: The invention provides a method for separating fuel from water in a marine propulsion system and a reusable device for separating water from fuel in marine and diesel engines thereby preventing or limiting water from entering the combustion process of the engine. The device includes two generally thin-walled housings which secure and contain a plurality of petroleum sorbent filter elements therein. The filter elements are constructed from multiple adjacent microfibers layers bonded to each other by entanglement of said microfibers between adjacent layers, each element allowing passage of fuel therethrough but being substantially impervious to the passage of water. At least some of the filter elements are treated such that the surface of the element which faces the incoming fuel is heated until at least some of the microfibers coalesce and bond together.

Abstract: A water filter outer shell having an improved sleeve and top cover. The top cover and sleeve are formed with interior and exterior conical surfaces, the lower half of the conical surface of the outer shell having exterior threads. The top cover is fastened by screwing interior and exterior threads near the conical surfaces of the top cover and outer shell to eliminate three components from the known device. The tightness and water permeation seal are thus stronger and more effective. The structure has lower production costs to improve market competition.

Abstract: A filter assembly has a filter support means which axially receives a coreless filter element which is constructed of recyclable materials.

Abstract: A full-flow filter is disclosed and which comprises a screen or element housed between two body halves. The construction of the filter is such that fluid to be filtered enters and exits the filter body from the same side thereof.