Abstract: A body 1 is constructed by mounting a purifier cartridge 23 in a cold-water passage 7 and is equipped with a purified water handle 16 for opening and closing a branch passage leading from the cold-water passage 7 to the purifier cartridge 23. To this body, there is mounted a base 9 which includes a valve functioning part 11 for adjusting the mixing of cold water and hot water coming through the cold-water passage 7 and a hot-water passage 8, and the flow rates of the cold water, the hot water and the mixed water by operating a lever 15. A spout 10 spouts therefrom the cold water, the hot water, their mixed water adjusted by the valve functioning part 11, or the purified water. The purified water handle 16 and the valve functioning part 11 are provided separately, and hence they can be individually replaced when they fail.

Abstract: An automatic valving unit for a pressure vessel that holds a cartridge, loose media, and the like for conditioning and/or purifying a fluid, comprises a valve head having a first passageway extending through it and being adapted to be connected to a fluid transmission line, an outlet port formed at an outlet end portion of the first passageway in the valve head, a first valve member positioned in the first passageway of the valve head for blocking flow of fluid through the first passageway of the valve head when the pressure vessel is not connected to the valve head, a fluid inlet member formed on the pressure vessel for providing a passageway for fluid into the pressure vessel, said fluid inlet member including a first valve actuating member for opening the first valve member when the pressure vessel is connected to the valve head, and connecting/disconnecting members formed on the outlet port of the valve head and on the fluid inlet member of the pressure vessel for connecting the pressure vessel to the val

Abstract: A fuel filter comprises a head (10, 96) having an inlet (14, 100) and an outlet (16,102). The head has a pumping portion (18, 104) which includes a vertically extending stepped bore (46, 120) having movable bodies (86, 88; 132, 140) therein. The fluid area between the bodies (54, 126) is connected to a variable volume area (77, 160). The head is connected to an element (98, 266) by a nipple portion (186) which has a valve element (196) therein. An actuating projection (222, 272) is engagable with said valve element to open flow through said nipple portion when the correct element is attached thereto. The failure of the nipple portion to sufficiently extend in the element, which occurs when an improper element is attached, prevents flow through the nipple portion and renders the filter inoperable. 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.

Abstract: A filter system for a liquid, which system has a base with an inlet for incoming unfiltered liquid and an outlet for outgoing filtered liquid and a filter subassembly having a filter unit and structure for removably maintaining the filter unit in an operative position on the base. There is a first lead-in port on the base in communication with the base inlet and a first lead-out port on the base in communication with the base outlet. There is a second lead-in port on the filter unit and a second lead-out port on the filter unit. The filter unit further has structure for filtering liquid communicating between the second lead-in port and the second lead-out port.

Abstract: Embodiments of a fluid filtering assembly are shown and described, each embodiment including a valve head that routes fluid to and from a filter cartridge and that includes a valve system that automatically opens and closes when the filter cartridge is inserted and removed, respectively. The valve system preferably includes a generally-cylindrical piston with a hollow interior space, which receives a stem member. The stem member has a bottom-end seat or sealing member and has a central body shape that allows fluid to flow up through the piston interior space, either through or up around the stem member. Upon removal of the filter cartridge, the piston is biased to move down into an "off" position, to close both the inlet and outlet fluid passages. In this "off" position, the piston exterior surface blocks off radial fluid inlets and the piston interior surface seals with the stem bottom end seat to prevent fluid backflow out of the piston interior space.

Abstract: A strainer includes a filter which is easily detachable without the possibility of fluid leakage. The strainer has a housing defining a bore and is formed with a fluid inlet and outlet, and an end plate formed with a circular hole and cutouts provided along the edge of the circular hole, opposite to each other. A closure member is rotatably mounted in the bore of the housing and is formed with a passage through which the inlet and the outlet can communicate with each other, and a filter mounting hole. A filter is detachably inserted in the filter mounting hole. It has a flange and a knob formed with a protrusion. The edge of the circular hole is sandwiched between the protrusion and the flange. By turning the knob, the closure member can be turned to a position where it closes both the inlet and outlet. By pulling the knob in this state, the filter can be pulled out of the filter mounting hole for cleaning or replacement.

Abstract: A filter device has a housing with connections for a fluid and can be secured to a filter pot. The filter has a filter element secured by a holder. A closure prevents the undesired leakage of fluid. The closure has two sealing plates with at least partly bound openings in mutually staggered array in two different planes. The openings can be mutually moved under the effect of a power store for closing or opening the openings. As the filter pot is moved further away from the housing, the closure gradually seals at least one of the connections and/or the filter pot off from the environment. The filter device has a universally usable closure which can be economically produced, requires little space inside the device and operates reliable.

Abstract: A filter assembly adapted for connection between fluid supply and delivery lines to filter fluid flowing therethrough includes a replaceable filter cartridge having at one end concentric entrance and exit passages confined within an axially outwardly projecting annular wall and a mounting head having inlet and outlet ports adapted for substantially fixed connection to the supply and delivery lines, respectively. The mounting head has a cylindrical recess for sealingly receiving the annular wall of the filter cartridge therein, and the filter cartridge and the mounting head each have complementary interfitting ears and lugs thereon for permitting quick locked connection and unlocked disconnection of the filter cartridge to and from the mounting head incident to axial rotation of the filter cartridge in opposite directions, respectively, relative to the mounting head.

Abstract: A filter assembly adapted for connection between fluid supply and delivery lines to filter fluid flowing therethrough includes a replaceable filter cartridge having at one end concentric entrance and exit passages confined within an axially outwardly projecting annular wall and a mounting head having inlet and outlet ports adapted for substantially fixed connection to the supply and delivery lines, respectively. The mounting head has a cylindrical recess for sealingly receiving the annular wall of the filter cartridge therein, and the filter cartridge and the mounting head each have complementary interfitting ears and lugs thereon for permitting quick locked connection and unlocked disconnection of the filter cartridge to and from the mounting head incident to axial rotation of the filter cartridge in opposite directions, respectively, relative to the mounting head.

Abstract: A shut-off valve for a spin-on filter includes a generally cylindrical outer housing which has an open top surface and an annular spring channel formed in that top surface for receipt of a coil spring. The spring is positioned so as to act on a valve actuator and gasket combination which are moveable relative to a valve seat for opening and closing the shut-off valve. In the normally closed condition the spring exerts a spring biasing force on the upper portion of the valve actuator which pushes it against the gasket and pushes the gasket against the outer sealing ridge of the valve seat. In this condition any liquid flowing into the top center opening of the housing will not be allowed to pass through the lowered centered opening of the valve seat. However, when the spin-on filter which includes the shut-off valve is spun onto a mounting base a stem on that mounting base pushes upwardly on the valve actuator compressing the spring and creating a liquid flow path between the gasket and the valve seat.

Abstract: A fluid filter, particularly adapted for use in non-vertical header mount arrangements, has an inlet thereinto and an outlet therefrom, both of which are valved to create a closed filter shell upon removal of the filter from the header. The outlet valve is opened by engagement of the filter on a header spud therefor and the inlet valve is opened by pressurized oil being presented thereto.

Abstract: A filter assembly adapted for connection between fluid supply and delivery lines to filter fluid flowing therethrough includes a replaceable filter cartridge having at one end concentric entrance and exit passages confined within an axially outwardly projecting annular wall and a mounting head having inlet and outlet ports adapted for substantially fixed connection to the supply and delivery lines, respectively. The mounting head has a cylindrical recess for sealingly receiving the annular wall of the filter cartridge therein, and the filter cartridge and the mounting head each have complementary interfitting ears and lugs thereon for permitting quick locked connection and unlocked disconnection of the filter cartridge to and from the mounting head incident to axial rotation of the filter cartridge in opposite directions, respectively, relative to the mounting head.

Abstract: A filter container includes a sheet having a base with a liquid inlet pipe and a liquid exhaust pipe and a cap that is integrally attached to the base. A disposable unit container is housed inside the sheet, and the disposable unit container contains cartridge filters. The disposable unit container has a liquid inlet port and a liquid outlet port at a bottom portion thereof, these ports being provided with shut-off valves on the inside of the disposable unit container. The shut-off valves are engagable by the inlet and exhaust pipes on the base of the sheet so that the valves are open by engaging the disposable unit container with the base with the sheet, and are closed by removing the unit container from the base. The bottom end cap supports the lower ends of the cartridge filters above the inlet and outlet ports, and defines the inlet and outlet liquid flow paths. Upper end caps are also provided for sealing the upper ends of the cartridge filters.

Abstract: A filter arrangement (26) for a fuel system (10) having a cartridge (92) located in a bore (48) of a housing (42) for sequentially interruption flow communication from the bore (48) to a regulator (14) through an outlet port (44) and to the bore (48) through an inlet port (46) from a source (16) of fuel prior to the removal of the cartridge (94) from a housing (42). The housing (42) has a vent port (52) and a drain port (54) which are opened to allow fuel in the bore (48) to flow to a storage container (56) once the outlet (44) and inlet (46) ports are closed so that fuel is not lost from the fuel system (10) on the removal of the cartridge (94) from the bore (48).

Abstract: A filter apparatus for a percussion device powered by fluid pressure includes a percussion device housing having a fluid inlet and a fluid outlet. A valve is displaced between an open and a closed position. A filter recess is formed within the housing. A filter is inserted within the filter recess for moving the valve from the closed to the open position, thereby permitting fluid pressure to be supplied from the inlet to the outlet.

Abstract: A shut-off valve sealing system for a removable cartridge-type filter which includes a body having an inlet to conduct fluid to be filtered therethrough to an inlet of the filter cartridge. The body has an outlet to conduct filtered fluid therethrough from an outlet of the filter cartridge when supported on the body, and a central opening in communication with the inlet and the outlet. A seal member is provided on the body about the central opening. A valve member is movably mounted on the body and movable against the seal member to shut off the inlet when the filter cartridge is removed from the body. A retainer member is provided for retaining the seal member on the body, the retainer member projecting beyond the seal member and providing a stop for stopping movement of the valve member.

Abstract: An air filter system, with a replaceable cartridge, suitable for use in controlled environment systems such as computer information storage and retrieval devices. The system provides ease of maintenance, while providing a highly sanitized air stream to an optical device, over prolonged periods of operation, for temperature control of temperature sensitive areas. The system is comprised of a housing plenum located in the controlled environment system, the housing having a sliding filter tray, a plurality of air flow ports and a spring biased valve gate. When the filter tray is fully inserted in the housing, the valve gate is forced open so that the air flow is into the controlled environment, but when fully retracted the valve gate closes, causing the air to exit the system through an exhaust port.

Abstract: The invention relates to a filter for regenerating oil, especially from combustion engines, with an exchangeable cylindrical filter-cartridge, being of filter-tissue-paper wrapped tightly around a thin-wall-carton-tube. The filter-cartridge-center is supported by a rubber-tube, being slightly smaller in diameter than the carton-tube. The thin-wall-carton-tube will be ruptured by the oil-pressure existing on the outer circumference of the carton-tube, at such weak places caused by the channels running lengthwise the rubber-tube, making the oil-flow through the filter-cartridge possible. The filtered oil will collect in channels passing to the exit.

Abstract: The present invention provides an aquarium filtering system having a pump housing and a filter assembly which is detachably secured to the pump housing for cleaning or replacement. The pump housing includes two conduits which register with and telescopically receive two conduits on the filter assembly as the filter assembly is connected to the pump housing thus fluidly connecting the pump housing and filter assembly together. A yoke is slidably mounted to the pump housing and movable between a locking and unlocking position. In its locking position, the yoke engages two locking tabs on the filter assembly thus mechanically attaching the filter assembly to the pump housing. Conversely, in its unlocking position, the yoke enables the filter assembly to be removed from the pump housing.

Abstract: The invention pertains to a valve particularly suitable for sampling internal combustion engine lubricating oil while under pressure being used within the engine and consists of a valve body placed within a pressurized oil conduit. The body includes an orifice having a valve movable between open and closed positions by a sample collecting receptacle wherein one hand operation is readily achieved. The valve includes a proboscis suitable for piercing the sample receptacle diaphragm, and a spring produces a positive biasing force on the valve toward the closed position. A pressure balancing piston connected to the valve balances the force necessary for valve operation due to internal pressure. A removable cover protects the valve and proboscis when not in use.

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 filter assembly includes a slidable tubular member which in a first position provides for flow communication from an inlet passage through a filter element to a filter chamber outlet. Upon removal of the filter housing and filter element the tubular member is biased to a second position to effect a flow shut off between the inlet passage and the tubular member. The filter assembly may further include an outlet passage in flow communication with the inlet passage, and a valve seat is axially aligned with the tubular member and disposed between the inlet passage and outlet passage. A valve member on the end of the tubular member is engageable with the valve seat to preclude flow between the inlet passage and outlet passage when the tubular member is in the first position and providing for flow communication between the inlet passage and the filter chamber outlet.

Abstract: Fine particles such as minerals in a slurry are separated according to their specific gravity by cyclic centrifugal acceleration preduced by rotating a chamber (40) about its own axis and a further axis. Particles of greatest specific gravity are removed from the chamber (40) in the region of its side wall most remote from the further axis.

Abstract: A filter comprising a filter head, a canister secured to the filter head and a tubular filter within the canister. The filter head has inlet and outlet ports for connecting into a hydraulic conduit. A first passage normally delivers fluid from the inlet port to the outer cylindrical surface of the tubular filter element. A second passage delivers fluid from the interior of the filter element to the outlet port. The filter head has a sliding element between the inlet and outlet ports. The sliding element is spring biased which bias can be overcome by differential pressure across the filter element. An indicator is associated with said sliding element and extends through the filter head to the exterior thereof. The filter head has a butterfly valve in the second passage. A plunger slidably positioned in said filter head is spring biased to a first position in which it extends into the canister in the space normally occupied by the tubular filter element.

Abstract: The invention relates to strainers or filters, particularly such oil strainers of the type which have removable filter elements held, against spring bias in a casing.As shown in FIG. 1 the strainer comprises a casing 10 with inlet apertures 11 and outlet apertures 12. Spring biased shutters 17 and 21 are held in their open positions (as illustrated) by the filter element 13 when the closure cap 24 is screwed down.On removal of the filter element 13 the springs 18 and 22 cause shutters 17 and 21 respectively to close the inlet and outlet apertures automatically.

Abstract: Artificial kidney apparatus comprising a blood circulation system including a dialyzer and a blood pump interposed in a blood circuit connectable with blood vessels of a patient, the blood circulation section being contained together with a drive motor for the blood pump and an electrical supply source thereof in a single casing to form a portable unit. The unit has connection openings for detachable connection with corresponding connection openings of a dialyzing liquid circuit of a dialyzing liquid circulation section. Respective valves are provided in the openings which are normally closed but which when the sections are coupled are opened to provide intercommunication. In a modification a portable container freely contains a blood circulation section and a dialyzing liquid circulation section. A dialyzing liquid supply section is contained within the portable container in the interior thereof not taken up by the blood circulation section and the dialyzing liquid circulation section.

Abstract: The present invention relates to a filtering device for filtering a fluid flowing through the filtering device particularly for use in fluid systems requiring a continuous supply of filtered fluid. When it is necessary to replace or clean removable filter elements at certain intervals. The invention provides a filtering device which allows a continuous fluid supply during the cleaning or replacement of the filter element by providing a plurality of filter chambers connected in parallel which cooperatively functions as bypass chambers which maintan the connection between the inlet and the outlet of the filtering device when at least one filter element is removed.

Abstract: A valve for preventing the loss of fluid from a fluid circuit in an engine block when a screw on filter element located at a low point in the circuit is removed includes a bore in the engine block having an inlet passage connected to the bore near a valve seat which connects the bore to the outside of the engine block. The bore contains a poppet valve having a threaded end for engaging the filter element and a pin and spring combination passing through a longitudinal slot in the poppet valve to cause the poppet valve to block the bore to prevent the loss of fluid. The poppet valve is hollow and open to an outlet passage in the engine block which is spaced away from and is always blocked from the inlet passage. The through passage has a check surface and contains a check ball and check spring which are disposed between the pin and the threaded end of the poppet valve.

Abstract: A system for the removal and disposal of debris from the water intake of power plants or the like is disclosed. The system includes a strainer basket having pivoted, separable sections movable from an abutting position to an open position; the sections are biased to the abutting position, in the preferred form, by gravitational forces acting upon the basket sections and their contents. The system further includes structure for opening the separable portions of the basket to empty the contents into a suitable disposal receptacle; a preferred opening device is a member adapted to be positioned on the debris-receiving receptacle and having cam surfaces for separating the basket sections. The system contemplates placement of the strainer basket in a bellow-ground location and a hoist for lifting the basket for emptying.

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: The invention relates to a shut-off valve assembly for use with a filter carriage where the upper portion of the filter cartridge cooperates with the valve assembly for controlling fluid flowing into and out of the inlet and outlet port of the cartridge once the cartridge is removed from service. Cartridge removal causes the shut-off valve to automatically close fluid flow into and out of the cartridge. A valve abutment member in the shut-off assembly serves to shut off fluid inlet flow and a sealing member on a support member of assembly, serves to seal the shut-off assembly at the fluid inlet port. A ball check mounted in a retainer of assembly is biased in the downward direction during fluid shut-off.

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.