Abstract: A filtering apparatus including a fluid monitoring head and a replaceable filter cartridge removably fastened to said head. The cartridge includes a shut off mechanism for interrupting fluid flow through the cartridge when a predetermined quantity of fluid has been treated by the filter. The fluid monitoring head is releasably coupled to the shutoff mechanism when the filter is installed. The shutoff mechanism includes a valve element threadedly carried by a shaft that forms part of a driven member, operatively connected to a drive member forming part of the monitoring head. As the driven member rotates, the valve element is gradually unthreaded until it separates and is driven to a flow interrupting position by a biasing spring. The coupling between the drive and driven members includes apertures on one of the members which are engaged by resilient tongues formed on the other member.

Abstract: A filter assembly and associated collection bowl for a dual contaminant collection zone arrangement use a self-sealing o-ring in combination with a threaded mating arrangement in order to withstand high pressure differentials. The filter assembly includes an end cap having a plurality of downwardly projecting ribs distinct from a threaded connector ring upon which the end cap rests. The end cap includes a number of contaminant channels between adjacent pairs of the ribs, the contaminant channels leading to corresponding contaminant outlets.

Abstract: A multiple-disc filter comprises a stack of filtering discs each formed with grooves extending only partially through the thickness of the disc and configured to define a continuous, non-apertured surface on one face and a plurality of spaced ribs projecting from the opposite faces. The ribs are connected together to define a sinuous configuration and have flat line edges. The stack further includes spacing means between the contacting faces of adjacent discs of the stack, spacing the straight line edges of the sinuous ribs of one disc from the face of the next adjacent disc in the stack, such that the contacting faces of adjacent discs define a first group of recesses between the ribs communicating with the housing inlet, a second group of recesses alternating with the first group of recesses and communicating with the housing outlet, and a plurality of filtering passageways between the straight line edges of the ribs and the opposite face of the next adjacent disc.

Abstract: A filtering apparatus for removing impurities out of a lubrication oil for use in an internal combustion engine including low and high density filters having inlets commonly connected to an inlet conduit through which the lubrication oil to be filtered is supplied, an orifice arranged in an outlet conduit of the low density filter to produce a reduced pressure due to a fast oil flow and a conduit connected between an outlet of the high density filter and the orifice. Due to the reduced pressure applied to the outlet of the high density filter, a part of the oil is effectively sucked into the high density filter.

Abstract: A filtering system for water treatment including a head member having fluid inlet and outlet ports, a bracket member adapted to be secured to stationary support means, the head member being secured to the bracket member, a disposable filter cartridge closed at one end and being equipped at its other end with a closure member, the closure member having inlet and outlet passages formed therein to communicate with the interior of said filter cartridge, the closure member portion of the filter cartridge being insertable into the head member, its inlet and outlet passages formed so as to communicate with the inlet and outlet ports in the head member, and coacting locking means formed on the head member and the bracket member to secure the filter cartridge in place during operation of the filter system and also permit easy insertion of the closure member into and withdrawal of the closure member from the head member.

Abstract: The invention relates to a filter comprising main and secondary filtering stacks and a distribution valve provided with main and secondary enclosures adapted to isolate the filtering elements of the two stacks section by section with a view to deblinding them. According to the invention, a port, with which the distribution valve is provided, connects the main and secondary enclosures. One application of the invention is the production of a filter with high yield of filtration.

Abstract: The invention relates to a filter comprising main and secondary filtering stacks and a distribution valve provided with main and secondary enclosures adapted to isolate the filtering elements of the two stacks section by section with a view to deblinding them, the fluid issuing from deblinding being directed towards a discharge chamber. This chamber communicates with an enclosure without pressure via a duct and a complementary duct provided with a valve. One application of the invention is the production of a filter with high yield of filtration.

Abstract: A liquid fuel operated engine has an integral fuel filter head formed unitarily on a part of the engine, particularly the engine cylinder head. The integral fuel filter head is designed to matingly receive a fuel filter canister or an adapter for enabling a plurality of fuel filter canisters to be attached thereto. In accordance with a preferred embodiment, the adapter is a plate-like structure having a base mounting socket on one side and a pair of filter canister mounting sockets on an opposite side thereof. The integral fuel filter head is, in accordance with the preferred embodiment, situated on the underside of a horizontally projecting flange formed on a side of the cylinder head. The adapter is designed to receive the same type of filter canisters as does the integral filter head.

Abstract: An in-line vacuum filter normally mounted between a vacuum pump and a vacuum packaging machine to block flow of process debris and sediment that collects at the outer surface of an outer screen of two concentric contiguous cylindrical screen with air flow inward through the two screens. The outer screen surface is viewable from the exterior of the vacuum filter through a transparent outer cylindrical enclosure so that a machine operator can easily see when it is time to disassemble and clean the filter of the sediment and debris buildup thereon. The transparent outer cylindrical enclosure and the two concentric cylindrical screens are held in the assembled vacuum filter between a bottom filter plate and a top filter plate all held together by one rod threaded on both ends with the top threaded into the top filter plate and the bottom extended through the bottom filter plate with a hex nut threaded on the bottom.

Abstract: A valve whose casing has two coaxial passages and a chamber disposed between the passages and receiving a valving element movable between an open position in which the passages are free to communicate with one another and a closed position in which the passages are fully sealed from each other. The housing is separably connected with a casing for a tubular filter through which the fluid entering via one of the passages flows on its way toward the other passage when the valving element is held in the open position. The casing can be detached from the housing only when the valving element is held in the closed position to thus prevent leakage or spillage of fluid from the housing on detachment of the casing. The valving element can include a rotary body or a membrane and a displacing member which latter is reciprocable in the chamber to move the membrane against an annular seat of the housing.

Abstract: A combination fuel filter and water separator which is particularly useful at the upstream, suction side of a fuel pump includes efficient provision for initial settling of water and particulate material in a lower chamber, after which the fluid passes up through a backflow preventing check valve and into an upper chamber, where fine filtration takes place. The check valve, preferably a ball valve between the lower and upper chambers, prevents any backflow of fuel by gravity from the filter/separator assembly when a top cover is opened, e.g. for servicing of a filter element in the upper chamber. The location of the ball valve avoids subjecting it to highly contaminated entering fuel, which could foul the valve. Associated with the inlet structure of the assembly is a channel for inducing a helical flow path for centrifugally removing water and particles while imparting a downward component of motion to them.

Abstract: A port proximate to an automotive oil filter, and a closure therefor, used to precharge a newly installed oil filter with oil. The port may be located either in an adaptor mounting plate, which is located between the filter and the engine block, or in the engine block itself. The port is in fluid communication with the filter, allowing a newly installed filter to be precharged with oil to minimize engine wear.

Abstract: The filter system includes a high performance full-flow filter and the second super efficient by-pass filter. An adapter and adapter bushing is located between the engine block and the full-flow filter. The adapter is tapped to provide a pressure source through a filter hose to the by-pass filter. The by-pass filter is then connected to the low pressure side of the oil by connecting through a special drain plug fitting. The hoses are connected to the by-pass filter and the drain plug through a special pivotal connection to fit any make automobile. The by-pass filter may be mounted inside of a neoprene coated nylon sleeve or by a special mounting bracket.

Abstract: A port proximate to an automotive oil filter, and a closure therefor, used to precharge a newly installed oil filter with oil. The port may be located either in an adaptor mounting plate, which is located between the filter and the engine block, or in the engine block itself. The port is in fluid communication with the filter, allowing a newly installed filter to be precharged with oil to minimize engine wear.

Abstract: The subject invention relates to a filter apparatus for separating fluids of varying density. The subject filter is particularly adapted for use with diesel engines. The apparatus includes a new and improved baffle system which increases the separation of fluids. In addition, a unique filter cartridge is disclosed which is readily replaceable. The cartridge also functions to reduce the likelihood of the formation of air pockets.

Abstract: A fluid filtering device comprising a housing having an interior chamber with an open top and an inlet and outlet open to the chamber. An annular seat is secured to the housing within the chamber in a position spaced downwardly from the open top so that the seat protrudes inwardly into the chamber and forms an axially extending surface having a seal member. A filter element is removably insertable into the chamber through its open top and to a filtering position in which the filter element is positioned in between the housing inlet and outlet. The filter element includes an outwardly flanged portion which abuts against the top of the seat when the filter element is in its filtering position while the seal member sealingly engages an axially extending surface of the filter element. A cover is detachably secured across the open top of a housing while an elongated handle is secured at one end to the filter element and its other end is positioned adjacent the intersection of the cover with the housing.

Abstract: An adapter 10 for connecting a bypass oil filter to an internal combustion engine 14 having a full flow lubricating system is mounted between the oil filter mounting block 12 and the conventional full flow filter 16. The adapter includes means 48, 52 for diverting a portion of the circulating oil flow to the bypass filter and means 46, 74, 76 for returning that portion to the engine. The adapter includes a body portion 36 and an insert 60 which together define the passages necessary for diverting a portion of the oil flow to the bypass filter. The body includes a central axial 38 opening which receives the insert, the body and insert together defining an annular chamber 76 which receives clean oil from the bypass filter through a radial passage 46 in the body.

Abstract: A fluid filter (10) of the spin-on automotive type has a housing with a unitary closure member (18). The unitary, or one-piece, closure member (18) includes provision for mounting of the filter and for fluid flow therethrough. Two opposed annular flanges (78, 80) of the closure member receive between them the marginal edge (72) of the filter shell in a fluid-tight crimped engagement. This arrangement facilitates manufacture of the filter by providing support to the shell wall (68) during the crimping operation and also provides an exceptionally strong joint between the shell (12) and closure member (18). Another embodiment of the filter has a closure member (18) with a marginal edge (76) having a portion of reduced thickness which facilitates its crimped engagement with the filter shell (12). Methods of making such closure members attain a unitary closure member without welding operations.

Abstract: A cold trap disposed in a system in which liquid sodium is circulated as a heat exchanging medium, and adapted for removing impurities from the liquid sodium. The cold trap has a vessel in which defined are a cooling zone for cooling the liquid sodium containing the impurities, trapping zone in which the precipitated impurities are trapped and separated from the liquid sodium and an economizer zone in which the purified liquid sodium is reheated. The cooling zone and the economizer zone are disposed adjacent to each other, so that the purified sodium flowing through the economizer zone may be heated by the liquid sodium flowing through the cooling zone. The trapping zone is disposed in the passage of the liquid sodium interconnecting the heating and economizer zones.

Abstract: A filter assembly having an extruded filter head. The extruded filter head is composed of a generally flat base and a domed upper section which is connected to the side edge of the base. A central wall extends between the base and the upper section and defines longitudinally extending inlet and outlet chambers, each of which has a uniform cross section throughout its length. Fluid to be filtered is introduced into the inlet chamber and is withdrawn from the outlet chamber. One or more filters are mounted on the underside of the base. Each filter is provided with an inlet opening which is connected through a port in the base to the inlet chamber and is also provided with an outlet opening which is connected through a second port in the base to the outlet chamber. The extruded construction provides improved mechanical strength for the head, and substantially reduced porosity as compared to a cast head.

Abstract: A disposable, oil filter cartridge is described. The cartridge comprises a shell of circular outline within which a stack of interconnected filter discs of octagonal outline are held in preloaded, compressed condition by an end cap attached to the outer, or open, end of the shell. The stack of filter elements has a plurality of tortuous passageways through which oil flows and is discharged, after filtration, centrally of the stack of filter elements, through the end cap. A compression spring maintains the integrity of the tortuous passageways which might otherwise be lost due to the expected reduction in thickness of the filter elements during use. A second embodiment of the invention illustrates a similar cartridge in which the filter discs are of hexagonal outline which facilitates their fabrication from a sheet of filter material.

Abstract: A fluid filter (10) of the spin-on automotive type has a housing with a unitary closure member (18). The unitary, or one-piece, closure member (18) includes provision for mounting of the filter and for fluid flow therethrough. Two opposed annular flanges (78, 80) of the closure member receive between them the marginal edge (72) of the filter shell in a fluid-tight crimped engagement. This arrangement facilitates manufacture of the filter by providing support to the shell wall (68) during the crimping operation and also provides an exceptionally strong joint between the shell (12) and closure member (18). Another embodiment of the filter has a closure member (18) with a marginal edge (76) having a portion of reduced thickness which facilitates its crimped engagement with the filter shell (12). Methods of making such closure members attain a unitary closure member without welding operations.

Abstract: A filter assembly with an inner housing and filter element mounted within an outer housing, and with first and second poppets carried on a shaft in said inner housing forming first and second valves. The filter assembly has a normal flow path from the outer housing inlet through the filter element and into the inner housing past the first poppet valve and then out the outlets from the inner housing to the outer housing. A bypass flow path is provided through the filter assembly when the filter element is blocked or dirty. In the bypass operation, the increased pressure differential between inlet and outlet causes operation of the second poppet valve providing a flow path from inlet to outlet bypassing the filter element. A reverse flow path is also provided by the second poppet valve to prevent flushing of the filter during reverse flow conditions such as occur when the filter assembly is utilized in conjunction with a hydraulic motor.

Abstract: A fluid filter of the disposable automotive spin-on type has a cup-shaped member and a closure member which together form a chamber for receiving a filtering media. The cup-shaped member has a relatively thin side wall and an open end defined by a marginal edge including a bead. The closure member is a one-piece stamping of uniform thickness and substantially thicker than the cup-shaped member. The closure member closes the open end of the cup-shaped member and includes an annular rim which extends perpendicularly to the plane of the closure member and generally parallel to the side wall of the cup-shaped member. A channel defined by the rim receives the bead of the cup-shaped member and the rim is crimped to form a fluid-tight connection between the members.

Abstract: A fluid filter apparatus has a standard filter element in it which has the usual end gaskets seated in annular grooves. An axial drive shaft positively rotates the filter element through key-like means between the shaft and the wall of a groove. An automatic system starts and stops the rotation.

Abstract: An improved self-contained apparatus for the separation of low density fluids, such as fuel, from higher density fluids such as water and also particles is disclosed which may be easily retrofitted into a variety of existing new and used engines as it can selectively accommodate the various fuel line arrangements and also various obstructions of these engines. Further, the apparatus includes improved flow director means which provides for the separation of the higher density fluid and the particles from the low density fluid at an earlier stage contributing to a more complete separation prior to the filtration of the fluid. Consequently, the filter element has an extended life due to the fact that it is exposed to less higher density fluids and particles in filtering the low density fluids.

Abstract: A container for air filters adapted to selectively house one or the other of at least two different primary filter elements having different diameters and different lengths, the container having a cylindrical body closed at one end by a fixed cap and closed at its opposite end by a removable cap, an air inlet in the container body and a centrally disposed air outlet in the fixed cap, the fixed cap being provided with a plurality of concentric annular sealing surfaces surrounding the air outlet, each such surface forming a seat for a different size primary filter element, centering means being provided to center each different primary filter element in the container, together with adjustable means for securing each different primary filter element in the container with its end in sealing contact with the corresponding sealing surface, provision being made for a secondary filter element.

Abstract: A head assembly for a spin-off filter is provided and comprises a stamped housing having a closed top wall and an open bottom with a flange adapted to sealingly engage the spin-off filter. A tube extends through the housing and is secured to the housing by appropriate means, such as welding. A member is thereafter secured to the tube for detachable connection with the spin-off filter. The tube also includes fluid passage means formed therein so that one end of the tube forms a fluid outlet while the other end of the tube forms a fluid inlet for connection with a fluid system. Fluid flow into the fluid inlet is diverted by the fluid passage means through the spin-off filter and to the fluid outlet.

Abstract: A water filter, in particular for aquarium water, comprises a filter chamber having a water inlet and a water outlet and being filled with exchangable filter material, as well as a boost pump arranged downstream of the water outlet. The filter chamber is defined by an annular space between two concentric tubes of different diameters, the outer tube having as water inlet a perforation arranged spaced around its entire circumference and its entire length and the inner tube likewise being provided with a perforation around its entire circumference and its entire length. At one end of the inner tube, a water outlet line is connected, while the other end of the inner tube is closed. With this structure, the entire filter material employed may be completely utilized, and also, the exchanging of the filter material is simpler.

Abstract: This invention relates to fluid filter units comprising a canister having a filter element permanently retained in the canister by an end plate. The end plate is attached to the canister by a closing ring which is joined to the end plate and which forms a seam joint with the mouth of the canister. An annular seal is provided at the junction of fluid leakage paths past the end plate to the inner and outer peripheries of the closing ring so that the seal closes both leakage paths.Such filter units are particularly suitable for the lubrication systems of internal combustion engines.

Abstract: Method and apparatus for the constant volume solvent exchange or constant volume neutralization of a liquid solution or suspension of macromolecules. Liquid enters a bulk zone and passes into a thin layer filtration zone, in which the separation is effected through a semi-permeable membrane filter.

Abstract: A fluid collection apparatus is disclosed which is useful in separating blood serum or plasma from blood cellular and particulate matter. The apparatus includes an elongate hollow body having a self-sealing septum sealingly disposed within one end thereof and a piston having an axially projecting hollow piercing element adapted to pierce the septum and provide communication with the interior of the hollow body. The piston includes a laterally extending flange for sealing engagement with the interior of a container for containing the mixture to be treated. After the hollow body and the associated piston assembly is inserted into the container the flange of the piston is engaged with the inner wall of the container causing the composite piston apparatus to remain in and seal a sample within the container.

Abstract: A fluid collection apparatus is disclosed which is useful in separating blood serum or plasma from blood cellular and particulate matter. The apparatus comprises an elongated hollow body closeable at both ends with a self sealing septum near one end. The septum includes a central cavity extending axially from one end of the septum and terminates in a web portion. The septal web portion is pierced by a composite piston member which includes a passageway equipped with a filter. Fluid, therefore, flows through the filter, the piercing means and into the hollow body. A flange on the composite piston extends laterally of the hollow body and sealingly engages the inner wall of a tube filled with a sample of mixed materials.Upon withdrawal of the apparatus, the composite piston remains sealed in the sample containing tube. The web portion of the hollow body reseals on withdrawal of the piercing means to prevent leakage.

Abstract: A filter of the throw away spin-on type having a housing body with a closed end and an open end, a filter element mounted within said body, a cover plate secured to and closing said open end, a gasket retainer secured to the end closure cover plate, fluid input and output apertures provided in both the cover plate and the gasket retainer, the gasket retainer having a recessed pocket extending circumferentially around the fluid flow openings, inwardly of the outer circumference of the gasket retainer, said gasket pocket having a base at a specified angle relative to the surface plane of the cover plate, and a resilient flexible gasket member of special shape retained by the gasket retainer pocket. The specially configured sealing gasket member is preferably of rhomboid shape and thus a cross section thereof forms a parallelogram with oblique angles and opposite sides equal. The top and bottom surfaces of the sealing gasket form an angle of approximately 10.degree.

Abstract: An electric oil refining apparatus for motor vehicle internal combustion engines designed to remove liquid and solid contaminants from oil which is then recycled. The oil exits from a single small orifice into a vaporization chamber where, due to sudden change of temperature and pressure, the liquid contaminants separate from the oil. The stream of oil is then deflected against a heated concave cup which vaporizes liquid contaminants, and allows oil to flow over the floor of the vaporization chamber and back to the internal combustion engine of the motor vehicle for reuse. A filter is provided at the input to the orifice, thereby avoiding clogging of the orifice.

Abstract: A fluid filtering device for use with a filter body having a chamber open at one end and a fluid inlet and a fluid outlet port in fluid communication with the chamber. The device comprises a housing formed by molding a plastic cap onto one axial end of a tubular cage. A filter element is disposed within the cage while an annular member is nondetachably secured to the other end of the cage to entrap the filter element within the cage. The cage is dimensioned so that upon insertion into the body chamber, the filter element is positioned between the inlet and outlet ports while the cap covers the open end of the chamber. In addition, a fluid bypass valve is contained within the cage and bypasses the fluid flow around the filter element from the fluid inlet to the fluid outlet upon the occurrence of a predetermined differential pressure across the filter element.

Abstract: A filter having a microporous filter sleeve formed from fibres providing pore sizes below 50 microns, supported by a rigid support, and held at each end in a tapered channel in an end cap to compress the end zones of the sleeve. The end caps can be urged towards each other by a tie rod, extending between them, having a nut and screw arrangement. A porous sock may be provided downstream of the filter element, and this can be of plastic material, or of foamed metal, and combined with the rigid support.

Abstract: The filter assembly employs a closure portion having fluid inlet and outlet ports integral therewith enabling in-line use of the assembly. Associated with such closure is a spring biased valve handle, whereby rotation of the handle along a prescribed course of travel enables simultaneous closing of the inlet and outlet ports thusly permitting free movement of the filter assembly body from the closure. A vent is provided in the closure which acts to relieve internal pressure within the assembly thereby further enabling easy removal of the filter body.

Abstract: A filter bag pressure vessel having a filter bag that affords significantly more filter area than the conventional filter bag per equal unit area of volume displacement. The arrangement incorporates a center feed that permits a positive 360.degree. sealing of the inlet and filter bag between two parallel surfaces with a single sealing means that eliminates close tolerances and other requirements that were utilized in the prior art constructions. In addition, the filter bag and supporting structure can be adapted to fit within existing pressure vessels.

Abstract: A filter comprises an inner rigid metal tube connectable at its opposite ends to the fluid pipe line, and a spaced outer plastic housing enclosing the inner rigid tube. The latter is formed with two groups of holes through its wall, and with a deflector between the groups of holes for deflecting the fluid to flow through one group of holes, the space between the inner tube and the other housing, and the second group of holes. A filter body is disposed in the space between the outer plastic housing and the inner rigid tube.Two embodiments of the invention are described, one being an in-line construction wherein the filter body is coaxial to the inner rigid tube, and the other being an off-line construction wherein the filter body is at right angles to the inner tube.

Abstract: A water cleaner is formed of a hollow casing having a water inlet and a water outlet. An elongated tubing is secured to the interior of the casing and contains an inlet and an outlet and means for coupling the tubing inlet to the water inlet and the tubing outlet to the water outlet. A screen surrounds the exterior of the tubing and is secured thereto. A filter element surrounds the screen for removing impurities from the water passing from the casing inlet to the casing outlet.

Abstract: A filter device for straining brake fluid in a hydraulic brake system comprises a disk shaped core the opposite sides of which are attached to a cup shaped bowl. A filter element is secured to one side of the core in one bowl. Nipples integral with the core extend radially outward and communicate with radial bores in the core. The bores have axial portions opening at opposite sides of the core in the bowls. One pipe may connect the filter device to the reservoir of a master brake cylinder via one nipple, and another pipe may connect the filter device to a source of brake fluid via the other nipples. A bleed hole adapted to be closed by a removable screw is provided in the outer wall of each of the bowls. The filter element may have a porous body made of sintered metal and may have a cylindrical outer wall with a reetrant conical wall.

Abstract: A filter assembly comprises a housing having a tubular filter and a bypass valve mounted therein. The valve comprises a spool having pressure modulating means thereon in the form of a tubular extension having a plurality of metering orifices formed therethrough. In normal operation, fluid is communicated from an inlet of the housing, through the filter and to an outlet. When the inlet pressure of the fluid exceeds a predetermined level due to clogging of the filter, for example, the fluid is communicated from the inlet to the outlet directly, through the metering orifices of the valve. The spool has a cylindrical portion which forms a sliding seal with a cylindrical bore defined in the housing to prevent premature opening of the bypass valve.

Abstract: A universal filter mounting attachment for engine oil filters comprises a base having valved apertures therethrough and a threaded member selected for connection to a cooperating threaded member on a particular engine. The base carries a latch which cooperates with corresponding structure on the filter to latch the filter to the base and thus to the engine for circulation through the filter of oil from the engine. The base is normally left attached to the engine and the filter is unlatched therefrom for replacement or the like. The latch and the cooperating structure on the filter are designed such that filters may be manufactured in a single configuration and attached to all engines.

Abstract: A filter for liquids with a filter head provided with inlet and outlet channels and with a filter body arranged therebelow which is retained at the filter head by a central threaded connection, and in which the discharge of the liquid takes place centrally; a bolt engaging by means of a thread in the filter body is thereby provided to establish the threaded connection which is in communication by way of a coaxial dead-end bore and a cross bore, on the one hand, with the interior of the filter body and, on the other hand, with the outlet channel in the filter head; a sealing ring is provided between the thread of the bolt and the cross bore which provides a radial seal in the filter head with respect to the bolt bore.

Abstract: A filter device, particularly a dry filter device for refrigerant in cooling systems, comprises an inlet- and outlet-equipped housing having a chamber containing the filter, which chamber has a sealable aperture for allowing replacement of the filter in the chamber, and a valve having a valve body which in an operating position establishes communication between the inlet and the outlet via the chamber containing the filter and which in a service position establishes communication between the inlet and the outlet around the chamber containing the filter to allow replacement of the filter. The valve body has an evacuation position in addition to the two said positions, in which evacuation position said valve body seals the inlet and establishes communication between the chamber containing the filter and the outlet.

Abstract: A filter for liquid fuels wherein a flanged end portion of the metallic case for filter elements is embedded in or bonded to the reinforced open end of a transparent injection-molded plastic cup. The connection includes an elastic plastic liner which may constitute a barrier against any direct contact between the cup and the case or is disposed between the inner side of the end portion of the case and a raised annular portion of the open end of the cup. The liner compensates for differences between the thermal expansion coefficients of the materials of the case and cup and insures that the connection is not only leakproof but also resistant to relatively high fluid pressures in the filter. If the end portion of the case is bonded to the open end of the cup, it has an inwardly extending collar which overlies a bead of the open end; the liner then consists of hot melt and fills a gap between the inner side of the collar and the adjacent shoulder of the bead.

Abstract: Presented is a filter device for the fuel of diesel engines to remove water and entrained solids from the fuel, and which prevents the build-up of pockets of air within the filter device.

Abstract: An improved method for treating liquids by disinfection and clarification which includes a means to mix and maintain consistency of the flow in a generally uniform composition prior to and during treatment. The mixture being connected to a section of conduit arranged in a pattern in a target area of a microwave generator so that all matter in the flow is exposed and excited by the electro-magnetic energy for a predetermined period of time and a control means to regulate flow of the mixture so as to allow flow only when mixture is treated, to a prescribed level. The method includes an automatic means to sense degree of treatment and to increase or decrease flow, as required, to maintain uniformity of treatment. Disposable filter means is provided when removal of undesirable contaminents is required.

Abstract: An oil filter mounting means for an internal combustion engine has an engine engaging end dimensioned and shaped to be mounted on an engine fitting on which an oil filter is normally mounted and has an opposite end with a threaded nipple for receiving an oil filter with first and second conduits extending through the fitting member and a valve means for opening or closing the conduits to permit flow of oil through the filter or to block the flow of oil to permit the filter to be changed without interruption of the operation of the engine.