Abstract: Water to be purified swirls about a source of ultraviolet radiation to kill any microorganisms contained therein and flows through a carbon filter cartridge mounted about the ultraviolet source to remove any chlorine and particulate matter. The outflow from the carbon filter is again subjected to ultraviolet radiation to kill any microorganisms entrained in the water emanating from the carbon filter. An ozone generator may be incorporated to entrain ozone with the inflowing water to enhance killing of any microorganisms present and to oxidize any undesirable compounds. The cartridge filter has its annular support member at one end disposed adjacent a first annular ridge to establish an annular seal between the support member and the first annular ridge. An axially moveable disk includes a second annular ridge disposed adjacent the annular support member at the other end of the cartridge filter to establish an annular seal therebetween.

Abstract: In a liquid filter comprising a filter housing having at least one liquid intake channel and at least one liquid return channel passing through a face wall of the filter housing that faces toward a filter connecting flange to which said filter housing is to be mounted, a releasable cover that closes the filter housing liquid-tight, an individually replaceable filter insert that can removed from the filter housing, and the improvement of a hollow fastening screw forming an axial liquid channel in communication with the liquid return channel and that can be rotated relative to the filter housing, the screw being centrally arranged in the face wall of the filter housing and serving to securely mount the filter housing to the filter connecting flange. Check valves can optionally be provided in the intake channel and in the hollow screw to prevent unwanted flow of liquid through the filter housing, particularly when changing the filter insert.

Abstract: Membrane disk assemblies include membrane disks which have feed and residue apertures formed through and bounded entirely by a perimetrical edge region of the disk. Preferably, the feed and residue apertures are formed though a fluid-impermeable support rim positioned in the perimetrical edge region of the membrane disk which serves to sealably bond the exterior membrane sheets and at least one interposed permeate carrier sheet one to another. Most preferably, the support rim includes inwardly directed lobes through which the feed and residue apertures are formed. The membrane disks will also include a central permeate aperture in fluid communication with the carrier sheet interposed between the pair of membrane sheets. When a number of such membrane disks are assembled in stacked relationship with the feed, residue and central permeate apertures registered, there will be formed respective feed, residue and permeate passageways through the stack.

Abstract: The invention relates to a filling sluice for appliances for the treatment of infectious waste, with at least two chambers separable from on another via a rotary vane of stationary mounting and located in a sluice housing closable in a fluid-tight manner relative to the outside. For the rapid and reliable sluicing of infectious waste without a release of infectious germs, the rotary vane is arranged as a swingable partition wall between axially adjacent chambers and can be brought via an inflatable continuous sealing element to bear in a sealingly closing manner on the inner wall of the sluice housing.

Abstract: A liquid filtering device includes a vessel and a filtering cartridge within the vessel. A pressure seal between the outlet venting of the cartridge includes a circumferentially extending skirt which is communicated with pressure at the inlet of the vessel, which is higher than the pressure of the outlet of the vessel by the pressure drop across the filtering cartridge. Accordingly, the skirt is maintained in sealing engagement with a portion of the vessel or the support plate area by the vessel, thereby preventing bypass of fluid directly from the inlet to the outlet.

Abstract: A fuel filter assembly employs a base which mounts a disposable filter cartridge. A pair of axial conduits in the base provide fluid communication between the base and the cartridge. An axial conduit and at least one baffle positioned on the axial conduit outer surface within the cartridge provide a flow path through the cartridge. An orifice located in the cartridge axial conduit provides a bleed vent which controls the size and flow rate of air bubbles in filtered fuel exiting the fuel filter.

Abstract: An in-tank fuel filter for a lawnmower including a tank inlet adapter having a lower gasket portion and an upper inlet portion, the gasket portion further having a generally tubular configuration with an outer surface, an inner surface, a top edge and a bottom edge interconnecting the surfaces thereof, the inlet portion further having a generally tubular configuration positioned in axial alignment with the gasket portion, an inner surface, an outer surface, a top edge and a bottom edge interconnecting the surfaces thereof and with the bottom edge further coupled to the top edge of the gasket portion; and a metal screen having a bottom wall and a tubular peripheral side wall portion extended upwards from the bottom wall to define a hollow interior, a central opening to the interior, and an upper edge bounding the central opening and with the upper edge coupled to the gasket portion to thereby create an annular holding space for receiving a nozzle of a gas tank.

Abstract: A liquid filter includes an openable filter housing. The liquid filter has an unfiltered-liquid inlet and a clean-liquid outlet. A first filter element is arranged in the filter housing. The first filter element has an essentially hollow-cylindrical design, with the liquid flow travelling through it from the outside to the inside. An additional hollow-cylindrical filter element is arranged inside of the first filter element, wherein the liquid flow is also from the outside to the inside through the additional filter element. A separating wall is disposed between the two filter elements. The entire filter has a compact construction with a large effective filter area.

Abstract: An oil filter has a cap screwed to the approximately upright arranged filter housing of the oil filter for the cleaning of lubricating oil, with a ring-shaped filter insert being detachably fastened on the cap and separating the outer inflow space from the inner flow-off space. In the lower zone of the filter housing, provision is made for a valve-like acting member, which is automatically opened with each change of the filter insert and serves for discharging oil that remained in the filter housing into an oil-collecting space via a discharge duct. A center bar is rotatably connected with the cap. The center bar is axially displaceable in a limited way and has in its zone close to the cap a piston-like flange, which is sealed against the filter insert and separates the inflow space from the flow-off space. The center bar has, in its lower end zone, the valve-like acting member cooperating with the discharge duct.

Abstract: A fuel injection valve has a fuel filter developed as one piece with a holding collar. The holding collar extends radially beyond the fuel inlet connection and has a nose outside the fuel inlet connection. The circumferential nose of the holding collar together with the groove on the outer circumference of the fuel inlet connection forms a detent connection by which the fuel filter is fastened in pin-pointed position. Between the base body of the fuel filter and the inner wall of the fuel inlet connection there is merely a clearance fit, so that formation of chips is avoided within the fuel injection valve. The fuel injection valve is particularly suitable for use in fuel injection systems of mixture-compressing external-ignition internal combustion engines.

Abstract: A filter element includes a bundle of hollow fibers made of first polyolefin. The bundle has at least one end sealed with second polyolefin having an average molecular weight in the range of 1,000 to 16,000. The filter element is produced by a method including the steps of fusing the second polyolefin having a fusion point lower than that of the first polyolefin, attaching the fused second polyolefin to at least one end of the bundle, allowing the attached second polyolefin to set, thereby providing the bundle with a sealed portion, and cutting off the leading end of the sealed portion.

Abstract: A shower filter assembly having an in-line reversible filter, changeable by unscrewing two portions of the housing. The housing exterior includes a plurality of gripping means to allow easy opening and closing of the housing and to prevent slippage of the hands of a user gripping the two portions, even when wet. The shower filter assembly includes a separate internal filter element that may be easily inserted into or removed from the shower filter assembly to allow the internal filter element to be easily reversed for longer use.

Abstract: A filtration apparatus for separating filtrate and concentrate from a liquid solution is disclosed. The filtration apparatus contains a housing having a discharge opening therein and being capable of containing a liquid solution to be filtered therein. A filter unit is insertable within the housing such that a first side faces the discharge opening of the housing. The filter unit contains a semipermeable membrane located thereon and capable of separating filtrate and concentrate. At least one inlet is located within the first side so that the semipermeable membrane covers the inlets.

Abstract: A spin-on filter includes a baseplate secured to an end cover and further includes a filter element disposed in a canister having an open end. The end cover is secured to the open end of the canister by seaming a flange formed at the edge of the end cover with a flange formed at the end of the canister. An end cap which is secured to the filter element is trapped between the baseplate and the seamed flanges, thereby securing the filter element in the canister and avoiding the need of a helical spring for urging the filter element toward the baseplate.

Abstract: A fuel filter assembly employs a base which mounts a disposable filter cartridge. A pair of axial conduits in the base provide fluid communication between the base and the cartridge. An axial sealing member mounted in the cartridge receives the axial conduits. An axial conduit and preferably at least one baffle positioned on the axial conduit outer surface within the cartridge provide a flow path through the cartridge. An orifice located in the cartridge axial conduit provides a bleed vent which controls the size and flow rate of air bubbles in filtered fuel exiting the fuel filter. A flange-shaped end of the cartridge axial conduit engages a ridge on the outside surface of the sealing member to prevent the fuel flow from bypassing the baffle.

Abstract: A filtration apparatus with exchangeable filters for hygienic filtration of contaminated fluids. A tubular filter housing (1) has a central bore (2) as a receiving chamber for a filter cartridge. O-shaped rings (5,6) are mounted at the ends and in the center of the wall of the receiving chamber, and these prevent fluid from leaking around the filter. The filter housing has a fluid entrance opening (7), and an exit (8). The filter cartridge has a filter element (11) and two end caps (13 and 14). The rear end cap (13) has an annular opening (16) which provides an open connection with a filter chamber (12) within the filter element. In an assembled state, the fluid entrance (7) is aligned with the annular opening (16) in the filter chamber. Contaminated fluid is drawn through entrance (7) and proceeds through the filter to fluid exit (8).

Abstract: A bag filter assembly utilizing a conventional housing and end cap construction includes a unique filter bag retaining cage and end cap adaptor which allow the use of replaceable bag filter elements of widely varying construction. The assembly will accommodate bag filter elements of the type having a shape retaining opening of rigid construction and including a shape-retaining bottom end cap or of the type comprising a generally continuous flexible tubular sleeve. The system is tolerant of the latter type of bag filters of substantially varying thicknesses.

Abstract: A flow-through, in-line filter housing including a cylindrical barrel for receiving a removable filter element, a filter element adaptor, and end cap assembly for engaging one end of the barrel, and a input flow diffuser and end cap assembly for engaging the opposite end of the barrel.

Abstract: A plurality of substantially parallel filter plates are assembled as a unit and are locatable within a substantially rigid outer shell to provide a closed vessel. Either or both of the unit and the shell are movable relative to the other between a position wherein the unit is sealed within the shell to enable pressurised supply to the shell of medium to be filtered via the plates and a position wherein the unit is at least partially removed from the shell to enable discharge of resultant filter cake from the plates. To improve filter efficiency, reducing the number of plates required and the pressure required, and to allow the removal of the filter plate unit when encrusted with filter cake, substantially impermeable, flexible membrane is provided as a lining to the shell and an additional shell inlet/outlet port is provided and is connected to pressure medium supply means so that a space between the lining and the shell is inflatable by pressure medium for the duration of the filtration operation.

Abstract: A filter for removing hazardous particulate matter from an aqueous flow. The filter includes a rigid support housing having an input port for the aqueous flow, an exit port for the aqueous flow, a brace to securingly engage a filter vessel for the aqueous flow, an internal seal and an external seal, and a disposable filter cartridge configured similarly to the housing and sized to be substantially entirely received within the housing and sealingly engage the internal seal and having a filter medium that extends across a path from the input port to the exit port when received in the housing, the cartridge having a terminal seal located to sealingly engage the cartridge to the aqueous flow filter vessel outside of the housing when the cartridge sealing engages with the internal seal.

Abstract: A filter assembly includes a disposable filter element and a reusable perforated supporting core, the filter element being removably mounted around the perforated core. The filter assembly may include first and second end caps and each end cap may include a first segment or adapter attached to one end of the filter element and a second segment or adapter attached to a corresponding end of the core. The first and second segments or adapters of each end may be detachably sealed to each other. The filter assembly may include a wrap having one or more strips wrapped at least once around the filter element.

Abstract: A hollow fiber type filter having a simple structure and also having an excellent heat resistance which can withstand a rapid temperature change due to high temperature generated in, for example, a steam sterilization is disclosed. The hollow fiber type filter comprises a case and a plurality of hollow fiber type filter membranes which are bundled and fixed with a potting material in the case, wherein a stop ring designed such that a thickness thereof increases inwardly is provided on an inner surface of the case into which the potting material is poured, and air release portions which penetrate the stop ring in the direction of the thickness of the stop ring is formed at an appropriate portion of the stop ring.

Abstract: Bonded end capped tubular or cylindrical filter elements are formed by fusing a fibrous mass of non-woven, intertwining, mechanically entangled, synthetic polymeric, microfibers possessing a temperature of dimensional heat instability and end caps formed from a dynamic vulcanizate comprising ethylene-propylene-diene-monomer (EPDM) rubber particles dispersed in a polypropylene matrix wherein the fused end capped filter exhibits minimal fiber pull back.

Abstract: A cartridge containing a plurality of hollow fiber membranes is disclosed. The cartridge comprises a plurality of fibers arranged in a bundle and at least one end of the bundle embedded in a tubesheet. The tubesheets are fitted with end caps to provide a chamber for the permeate. A feed tube extends longitudinally through the bundle and a permeate discharge tube is housed, preferably concentrically, within a feed tube. The cartridge does not require a high pressure seal, such as an O-ring seal, against the inner wall of the pressure vessel. The cartridge is configured as a single unit adapted for simple drop-in installation into a pressure vessel. Multiple cartridges may readily be inserted into a pressure vessel, and arranged so as to operate in series or in parallel. The hollow fiber membrane cartridge is adapted for industrial performance with high volumetric efficiency and high solute rejection.

Abstract: A membrane filtration module is provided incorporating a seal assembly to seal the annular space or bypass channel existing between the outer diameter of the filtration cartridge and the inner diameter of the housing in which it is disposed. The seal assembly prevents a feed stream from entering the bypass channel, and includes a pair of seals each having a flexible gasket and a sleeve extending perpendicularly therefrom, the sleeve being adapted to be positioned directly on the cartridge. This positioning prevents the feed stream from ever coming into contact with the housing.

Abstract: A filter for removing debris from a flow of molten plastic includes a cartridge containing a screen and a holder which seats one face of the cartridge. The flow of molten plastic is directed at an acute angle through the screen producing a filtered plastic flow through a downstream face of the screen and a flow of debris separated from the filter plastic along the upstream screen face. A compartment extends along the upstream screen face and accumulates the separated debris. A passage in the holder communicates with the debris-accumulating compartment and discharges the accumulating debris. A cooling mechanism regulates the rate at which debris is discharged.

Abstract: The filter includes an end plate stamped and drawn from sheet metal and formed with four upright walls generally defining a square and having inlet openings therein. Relatively deep gussets are located between the walls for strengthening purposes. Located outwardly of the walls and gussets is a flat peripheral portion of relatively small area and defining a flat surface to which a sheet metal retaining ring is welded. The ring is seamed to the canister of the filter by a hem which hooks beneath a short radially extending lip of the canister.

Abstract: The present invention relates to a filter carrier 1 for the construction of a filter tower 9. To simplify the construction on the whole, the invention provides for a seal which is arranged on the pressure-exerting plate of the filter carrier and comprises a sealing edge for sealing between the pressure-exerting plate and. the side wall of a filter carrier positioned thereunder, as well as a sealing collar for sealing and retaining the distributor element on the pressure-exerting plate.

Abstract: A dual-flow lubricant filter assembly having a bypass filter element with a full-flow filter element stacked thereon includes a grommet disposed between the filter elements for isolating lubricant streams after the lubricant has passed through the filter elements. The grommet is molded of a resinous material and includes an external flange which is sandwiched between the bypass and full-flow filter elements in order to axially position the grommet. The grommet also includes an internal flange which seals with an unthreaded portion of a standpipe with which the filter assembly is coupled.

Abstract: A water filter including a packing ring to seal up the gap between the casing and the top cover, which packing ring having downward projecting strips fitted into respective notches on the casing to stop the packing ring against rotary motion relative to the casing, two water sealing devices respectively mounted on a water outlet pipe on the top cover and a stub tube on the casing and having respective flanges forced to engage two opposite ends of the filter element and to prevent unfiltered water from entering the longitudinal center through hole of the filter element.

Abstract: A sanitary cartridge filter housing is formed by a bottom plate having a raised platform thereon from which a splash plate extends radially. A housing cylinder is mounted on the bottom plate and clamped thereto, with an O-ring therebetween, by a surrounding clamp. At an opposite end of the housing cylinder is located a top plate which is either held in place by a clamp or by the pressure exerted on the top plate by a tightening nut threadingly engaging a winged center post with the threads of the winged center post engaging the tightening nut externally of the formed housing. The winged center post is solid (non-perforated) and extends through the center of the housing cylinder, through the platform supporting the splash plate, and is secured at its lowermost end at the bottom of an outlet port tee located externally of the formed housing.

Abstract: Sealing means for use in the upstream passage of a slide plate screen changer, comprising a ring-shaped seal for contact with the slide plate, a pliable ring and a sleeve. A cavity external to the passage is formed by the seal, the sleeve and a shoulder on the body defining the passage. The pliable ring substantially fills and is confined by the cavity. The sleeve forms an aperture communicating between the passage and the cavity to transmit the pressure in the passage to the pliable ring.

Abstract: A novel sealing connector is provided for sealing a stack of filter units in a filter housing. The sealing connector has a base portion, a compression generating member, and an attachment member for selectively attaching the base portion to the end of a filter unit. The attachment member and the connecting portion of the end connector resiliently cooperate to permit latch members of the attachment member and the end connector to slide past each other and overlap in a radial direction when an axial force is exerted on the aligned latch members for integrally attaching the sealing connector to the end connector. In one illustrated embodiment, the sealing connector has a female attachment member for attaching to a male connecting portion of a male end connector.

Abstract: This invention relates to the preparation of, and a device for using, a permanently deformed sulfonated halopolymer article. A flexible and non-brittle flange may be formed from at least one end of a hollow perfluorosulfonic acid membrane in one aspect of the invention. The flanged membrane is particularly useful for quick attachment and detachment to various instrumentation used for pervaporation. In addition, by packing the membrane with a means for increasing radial diffusion of fluid within the membrane, pervaporation efficiency may be increased.

Abstract: A portable filtering apparatus with improved canister and filter cartridge design is described for remotely filtering by continuous recycling a variety of solvents and lubricating fluids from machinery reservoirs without requiring the halting of machinery operation or need for emptying said reservoirs to replace the solvents or fluids therein, said filter cartridge being replaceably removable from the canister for complete disposal along with its trapped contaminates preferably by incineration.

Abstract: A filter cartridge for a liquid is designed to be removably received in a housing and comprises a tubular filter element of zig-zag folded paper having two ends that are secured to two respective flexible washers. The cartridge does not have any central reinforcement of its own and its washers co-operate directly for sealing purposes with appropriate annular bearing surfaces of a perforated rigid tube that is included in the housing: the cartridge is therefore easily discarded or degraded after use.

Abstract: A reusable liquid filtering system and a disposable liquid filter used in the liquid filtering system are provided for use with an internal combustion engine or pump. The liquid filter includes first and second end members and a liquid bypass valve is connected to and projects outwardly from the first end member whereby excessive oil pressure will result in opening of the bypass valve so that an emergency oil flow bypass is thereby provided. The disposable liquid filter is removably positioned within a container of the reusable liquid filtering system. A base is removably connected to the engine or pump and to an open end of the container for allowing removal and replacement of the liquid filter and for allowing neat and spill-free drainage of oil from the container when the base and the container have been removed from the engine or pump and when the base has been removed from the container.

Abstract: The present invention provides a filter sealing device for a filter element. The filter element includes an end portion defining an opening. The sealing device includes a body having a first section attached to a second section. The first section is positionable within the opening in the filter element with the second section facing an open end portion of the filter element. The first section has a larger coefficient of thermal expansion than the end portion of the filter element so that an increase in temperature results in the first section of the body expanding at a greater rate than the end portion of the filter element. These differing rates of expansion cause a compressive force to be exerted between the first section of the body and the end portion of the filter element.

Abstract: A compressible differential pressure energized seal (18) coacting between a filter element (10) and the like and a housing (21) comprises a compressible portion (35) having a large open end (36) and a small open end (37), the large end (36) directed toward and contacting the housing (21 ) and the small end (37) directed toward the filter (10) element; and an annular flange (38) integrally attached to the compressible portion (35) at its small end (37) and extending outwardly, the flange (38) operatively communicating with the filter element (10). The seal (18) may also include at least one flap (43) to center the filter element (10) to which it is attached onto a centering rod (31 ) carried within the housing (21 ). Such a seal (18) is compressed when the element (10) is operationally enclosed within the housing (21 ) to provide a leak-proof seal during operation and is self-energizing during operation such that as the differential pressure increases, it more forcefully engages the sealing surface.

Abstract: A filter for a refrigeration unit having a heat exchange fluid supply conduit. The filter is a substantially cylindrical filter screen having a radial flange disposed at each end. One or more filters are disposed along the entire length of the fluid supply conduit to maximize the surface area of the filter screen. Each radial flange has a gasket disposed thereon for providing a seal that prevents the fluid from circumventing the filter screen of the one or more filters. As fluid passes through the conduit, it flows radially through the filter along the entire length of the conduit thereby reducing the adverse effect on fluid pressure in the conduit and passes through the screen, into a volume defined exterior to the filter, thereby minimizing the pressure drop experienced along the fluid supply conduit.

Abstract: A filter assembly is provided for a manifolded water filtration system and includes a filter element, a brine seal located at the top of the filter element and engaging a boss depending from the system manifold. The brine seal isolates a rinse water discharge port, communicating with a an outlet of the filter element, from an untreated water inlet port formed in the boss so as to ensure that the water to be treated passes through the filter membrane as opposed to directly out of the rinse water discharge port. This configuration eliminates the need for an exterior feed line, thus simplifying the system and preventing vibration during system start-up. The brine seal also structurally reenforces the filter element, facilitates assembly of the filter, increases the capacity of the assembly, and reduces the chances of failure and leakage.

Abstract: A new and improved engine coolant filter for removing particulate matter such as scale and rust from an internal combustion engine cooling system, the engine coolant filter comprising a filter element wherethrough coolant fluid may be circulated, the filter element including a housing having an input aperture and an output aperture, the housing also having filter medium disposed between the input aperture and the output aperture wherethrough coolant fluid may flow, and a manifold installed in series with a pressurized coolant line, the manifold having an input port and an output port, the manifold being removedly connected to the filter element such that coolant fluid flowing into the input port is circulated through the filter medium then out the output port, the manifold also having an automatic clogged-filter bypass valve whereby an unacceptable pressure differential across the ports caused by clogged filter medium shunts the coolant fluid around the clogged filter medium, the manifold further having a vis

Abstract: A liquid filtration system which includes a filter vessel having a liquid inlet and an outlet. A filter basket Is positioned in the vessel between the inlet and outlet and a filter bag is mounted on the filter basket. The bag includes a mounting ring which seats against the basket and against a smooth inner side wall of the vessel to prevent fluid leakage.

Abstract: A filter for fuel and/or lubricants of an internal combustion engine is described. This filter consists of a base plate which can be fastened to a threaded nipple, a cover which is releasably fastened to the base plate, and a support tube disposed on the cover or base plate. A filter cartridge is slipped over the support tube and consists of a cylinder-shaped filter insert and nonmetallic end plates. This filter cartridge is in contact with a sealing means on the base plate and an additional sealing means on the cover. Replacement of the entire filter is not necessary, with only the filter cartridge requiring replacement at specified intervals of time.

Abstract: An improved liquid filtering assembly used in applications such as filtering solvents for use in a liquid chromatography system. The filter assembly uses a filter cup having a large surface area which can be quickly removed and changed. The filter assembly also allows for the liquid to be drawn close to the bottom of the liquid reservoir. The filter assembly includes a coupling nut into which the tubing is secured on one side and an expansion member is secured on the other side. A seal ring is located around a portion of the expansion member. The expansion member urges the seal ring against the interior surface of the filter cup to secure the filter cup to the filter assembly. When the filter cup becomes clogged, the expansion member can be loosened to allow an operator to remove the clogged filter cup, replace it with a new filter cup, and then tighten the expansion member. Thus, the filter assembly can be reused simply by replacing the filter cup.

Abstract: The invention relates to a filter plate for a plate filter press with at least one press diaphragm (6) covered with filter fabric, in which the filter plate (2) and the press diaphragm (6) have at least one shared passage aperture (4), whereby the edge of the aperture (4) of the press diaphragm (6) has a circumferential edge bead (9) which is held in a groove (10) at the edge of the aperture (4) of the filter plate (2) by means of an annular securing component so as to create a seal.

Abstract: Device to simulate operation and placement of a reverse osmosis membrane element in a Reverse Osmosis Water Purification Unit (ROWPU). The device simulates the drop in hydrostatic pressure occurring when a liquid (usually water) is forced across a membrane which separates different concentrations of solutes in the same solvent system. When substituted into a typical ROWPU for an actual reverse osmosis (RO) element, the drop in hydrostatic pressure is effected by an aperture or series of apertures which allow passage of liquid directly from the intake liquid piping to the purified effluent piping. The hydrostatic pressure of the waste effluent is similar to the pressure present in the waste effluent when an actual RO element is operating in a ROWPU.

Abstract: The present invention relates to an apparatus for extracting liquid from a humid mass. The apparatus comprises a cylindrical housing having a first and a second end wall and a cylindrical side wall. At least one inlet is provided for admitting said humid mass in the housing. A pumping system is also provided for forcing said humid mass into the inlet. A rotor has one or more pairs of side walls, which are joined to a bottom wall and define one or more channels open at their periphery in at least a portion thereof. One or more rotor side walls are provided with perforations. The rotor has a central shaft for rotation with respect to the housing, this shaft having a conduit extending longitudinally therethrough, and is provided with one or more draining conduits having a first portion in fluid communication with the perforations. One or more rotor side walls are moved upon rotation of the central shaft. The draining conduit has a second portion in fluid communication with the shaft conduit.

Abstract: A filter assembly for an internal combustion engine includes inner and outer coaxial filter elements disposed in a spin-on canister which is detachably secured to a mounting adaptor. Oil from the crankcase is filtered by the outer filter element and a substantial volume of the filtered oil flows to the primary lubricating circuit of the engine. A small percentage of the filtered oil is subjected to further filtration by the inner filter element and is returned directly to the crankcase. A single gasket including a sealing ring and a concentrically disposed tubular fitting attached to the sealing ring by support legs is positioned to prevent commingling of the oil from the crankcase with oil filtered by the outer filter element and to prevent the oil filtered by the outer filter element from commingling with oil filtered by the inner filter element. In addition, the inner filter element is provided with a warm-up orifice to insure oil flow regardless of the condition of the inner and outer filter elements.

Abstract: A spin-on fluid filter cartridge with a replaceable filter element is provided, comprising a housing, an internally threaded annular collar, a replaceable filter element, and an externally threaded mounting head assembly. The annular collar is secured inside the housing at its open upper end. A sealing ring in an annular channel adjacent the external threads of the mounting head seals the cartridge when the mounting head assembly is threaded into the annular collar.