Abstract: A filter device includes four couplers attached to four sides, and a casing attached to bottom. A filtering material receptacle may be attached to the casing for filtering the water. A valve member is rotatably received in the housing, and includes six openings and four spaces and to communicate the openings of the valve member with each other, and includes two passageways for communicating with two openings of the valve member. The filtering material may be flushed with the water, and may be forced to change ion or to be cleaned with cleansing agent simply by rotating the valve member relative to the housing.

Abstract: A diaphragm operated valve having the diaphragm attached at its lower end to a valve closure plug, and movable therewith, and attached at its upper end to a portion of valve body that forms the pressure cavity. The diaphragm has a stepped portion between its upper and lower ends which folds back on itself when the valve opens. The valve body has shoulder portions that support the diaphragm when the valve is closed to avoid stressing the diaphragm material due to pressure in the pressure chamber. This allows the outside diameter of the diaphragm to be minimized, and eliminates the need for fabric reinforcement. A filter screen is positioned flush with the surface of the valve plug so that high velocity flow across the screen while the valve is opening and closing removes accumulated dirt thereby making the screen self cleaning.

Abstract: A diaphragm operated valve having the diaphragm attached at its lower end to a valve closure plug, and movable therewith, and attached at its upper end to a portion of valve body that forms the pressure cavity. The diaphragm has a stepped portion between its upper and lower ends which folds back on itself when the valve opens. The valve body has shoulder portions that support the diaphragm when the valve is closed to avoid stressing the diaphragm material due to pressure in the pressure chamber. This allows the outside diameter of the diaphragm to be minimized, and eliminates the need for fabric reinforcement. A filter screen is positioned flush with the surface of the valve plug so that high velocity flow across the screen while the valve is opening and closing removes accumulated dirt thereby making the screen self cleaning.

Abstract: A filter assembly is provided that includes a hood, a drain manifold, a filter disposed between the hood and the drain manifold, a drainage space that is disposed between and in fluid communication with both the filter medium and the drain manifold, a check valve that is configured to permit air to escape but not to enter the drainage space so that a siphon can be established that draws additional fluid through the filter medium and into the drain manifold, the siphon continuing until air entering the hood disrupts the siphon, and a check valve cap that is configured to permit air to escape the check valve while preserving an air-filled void above the check valve when the filter assembly is submerged.

Abstract: An apparatus comprising a pressure limiting valve for preventing transmission of elevated pressure to components downstream of the apparatus. Preferably, the pressure limiting valve is used in combination with a flow regulating device that maintains a substantially steady flow rate through the apparatus even when subject to a wide range of applied pressure. The apparatus of the present invention is preferably suitable for use with filter systems wherein the pressure limiting valve is placed upstream of filter components that have limited burst and fatigue life capabilities. By isolating the downstream filter components from pressures that are greater than the target pressure range for a given application, the filter components can be designed to operate at much lower pressure, can be produced at a smaller size, and at a reduced cost.

Abstract: An inline backwash, flushing filter assembly comprising a header assembly, a rotatable valve assembly, and a filter element assembly disposed within a filter housing assembly. In operation, the controller moves the turn knob of the rotatable valve assembly a one-quarter turn which results in the reversal of fluid flow through the assembly to periodically back flush the filter utilizing fluid from the system inlet. Debris removed from the filter element during the backwash process are immediately discharged from the system through a drain port. Simultaneously, the hydraulic shearing mechanism of the backwash process dislodges and drains debris which may have accumulated on the screen and at the bottom of the lower filter assembly during normal filter operations. The controller then returns the filter assembly to filtration operation by a reverse one-quarter turn of the turn knob of the rotatable valve assembly.

Abstract: The invention relates to a fuel filter for an internal combustion engine, comprising a filter housing consisting especially of metal, and a filter element and a pressure-regulating valve located in said filter housing. The aim of the invention is to ensure that no noise originating from the pressure-regulating valve is emitted. To this end, the pressure-regulating valve is mounted in the filter housing in such a way that vibrations are dampened.

Abstract: A replaceable filter cartridge assembly for a liquid filter and a liquid filter in which such a filter cartridge is installed. The filter cartridge 10 is provided with a support element 15, and a seat 20 for a sealing membrane 19 is provided on the support element 15. The sealing membrane seals the inlet 22 of the housing via a sealing edge 21 that acts as a return flow barrier over the inlet. The sealing membrane 19 also has a radial sealing surface 23 to provide a seal between the support element 15 and the outlet port 24 of the filter. This permits the filter cartridge to be manufactured in a particularly cost-effective manner and assures simple mounting within the housing. Since only the filter cartridge, which can be pushed onto the support element 15, needs to be exchanged, very little material has to be disposed of when the filter is replaced, which further increases the cost-effectiveness of the filter in use.

Abstract: A dual direction bypass valve allows a transmission filter to function whether or not it is placed in the vehicle transmission correctly. The filter includes a front and rear valve bodies separated by an end cap, and each having a spring and disk. When the filter media is clogged during normal forward flow, the fluid pressure on the rear valve body disk compresses the spring, opening an aperture in the end cap, allowing the fluid to pass from the front valve body through the rear valve body to the outlet, bypassing the filter media. If the transmission filter is placed in the engine backwards, the fluid pressure compresses the spring of the front valve body and opens up apertures in the end cap, such that the fluid flows through the apertures and the front valve body, bypassing the rear valve body and the filter media, to exit the filter.

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

Abstract: A filter assembly for a control valve for controlling fluid flow in a hydraulic control unit of a vehicular brake system includes a substantially annular filter body. The body has an inner surface, an outer surface, a first end, and a second end. The inner surface defines an axial bore from the first end to the second end of the body. A portion of the axial bore adjacent the first end receives a portion of a valve body. The filter body is disposed within a bore of a housing. The outer surface defines a first axial groove. The housing contains a valve. The first end of the filter body defines a first radially extending groove which extends between the axial bore and the first axial groove. A filter portion is disposed within the axial bore for filtering fluid flowing through the axial bore.

Abstract: A fuel dispenser filter for filtering fuel is adapted to be connected to a support in a fuel distribution system. The filter comprises a housing including an adaptor constructed and arranged to be secured to the support and a bowl operatively connected to the adaptor. A stud/spacer is secured in the adaptor. The stud/spacer defines a centrally disposed outlet flow passage and outwardly disposed inlet flow passages. A sleeve member is movably supported in the adaptor between the stud/spacer and the adaptor. The sleeve member is constructed and arranged to open and close the fuel flow through the inlet flow passages. A filter assembly including filter media is provided in the bowl for filtering the fuel passing through the filter. When the bowl is firmly engaged with the adaptor, the sleeve member is moved to open position to permit the flow of fuel through the filter and when the bowl is removed from the adaptor, the sleeve member is moved to a closed position to stop the flow of fuel.

Abstract: A liquid filter for removing contaminants from liquids such as lubricating oil, water or fuel, comprising a filter housing (10), a filter element (15), a support body (16) and a slide valve (17), which, when closed, prevents liquid from flowing from an unfiltered liquid area or from a filtered liquid area to a filter outlet (24). When the filter housing is opened, the slide valve moves axially and opens the filter outlet (24) so that the filter housing can empty. The slide valve (17) is detachably snapped together with the support body (16), which in turn is connected to a housing cover (12). This enables the slide valve to be detached from the support body, and reduces the level of maintenance required by the liquid filter.

Abstract: A filter assembly for a control valve for controlling fluid flow in a hydraulic control unit of a vehicular brake system includes a substantially annular filter body. The body has an inner surface, an outer surface, a first end, and a second end. The inner surface defines an axial bore from the first end to the second end of the body. A portion of the axial bore adjacent the first end receives a portion of a valve body. The filter body is disposed within a bore of a housing. The outer surface defines a first axial groove. The housing contains a valve. The first end of the filter body defines a first radially extending groove which extends between the axial bore and the first axial groove. A filter portion is disposed within the axial bore for filtering fluid flowing through the axial bore.

Abstract: A fluid filter assembly including a canister having a canister wall, a first passage and a second passage. A center tube is disposed within the canister and defines a length between a first end and a second end. The center tube includes a center tube wall having a plurality of apertures and defining a central bore, which is aligned with and is in communication with the first passage. The center tube wall includes a resilient valve seam, which extends along the length of the center tube and has a closed position and an open position. A filter element is mounted on the center tube and is disposed within the canister. When the valve seam is in the open position, the bore is in unfiltered communication with the second passage through a gap formed at the valve seam.

Abstract: A ballcock valve with a valve body mounted on a tubular riser with a valve seat which passes water from the riser. The valve body includes a base and a removable cap which enclose valve workings. A screen body passed through the valve seat has a central passage and openings to the passage that exclude particulate solids. A flow control is fitted to the screen body. The combined screen body and flow control is upstream from the valve seat. Preferably a retainer releasably holds the screen body against axial movement when installed.

Abstract: The fuel filter housing (12) is formed of inlet segment (14) and outlet segment (16) that are telescopically mounted to each other, with a seal (44) positioned between the mounting flanges (38) and (40). Valve (60) is maintained displaced from its valve seat (58) by valve actuator (66), by the valve actuator engaging the perimeter of the filter (34). When the outlet housing segment (16) moves away from inlet housing segment (14), the filter and the valve actuator (66) also move, allowing the valve the close. The amplitude of movement of the valve (60) toward and away from its seat (58) is smaller than the sealed telescopic movement of the housing segments, so that the valve closes before the segments separate, thereby limiting the amount of fuel lost from the fuel filter assembly.

Abstract: A fuel filter 10, particularly for diesel fuel, which is formed by a filter housing 11 with a filter head 12 and a filter enclosure 13. The filter head 12 has a fuel inlet 14 and a fuel outlet 15. The housing enclosure 13 has a water accumulation chamber 25, which is connected to a water outlet 16. A cylindrical filter element 17 and a water discharge device 27 are arranged in the filter housing 11. The filter element 17 separates an unfiltered side 19 from a filtered side 20 so as to form a seal. The water discharge device 27 seals the water outlet 16 in the housing enclosure 13. The water outlet 16 can be mechanically opened from the outside via an actuating element 29, which is is appropriately connected to the filter head 12 on the one hand and to the water outlet 16 on the other hand.

Abstract: Fluid separation assembly that allows easy and fast change-out even in confined spaces, and also minimizes or eliminates leakage during change-out. A fluid separation unit having a housing containing separation means, the housing having an inlet and an outlet spaced from the inlet, each including a fitting for attachment of the housing to a manifold or other device allowing fluid communication through the separation means to a point of use is provided. The fittings are designed for quick connect/disconnect, and for minimal or no leakage. The fittings may be on opposite ends, with top and bottom fittings of different configurations, thereby ensuring proper installation of the assembly. The particular medium to be separated is not particularly limited, and can include slurries, fluids including water, and pre-loaded chromatography columns.

Abstract: A drainage valve tap assembly for connection of a branch line to a main line while simultaneously forming a freeze proof drain comprising a hollow body having a first end and a second end, a cutting tube attached to the first end of the body; a handle having a hollow interior, the handle attached to the second end of the body for rotating the body; and a resilient drain plug extending at least partially in the body for blocking off the flow of water therethrough under a water pressure and for allowing the draining of water therethrough and out of the drainage valve when the water pressure is cut-off.

Abstract: An improved residential countertop water treatment unit for producing potable water suitable for human ingestion such as by drinking or cooking comprises a vertical arrangement of a base, a cartridge, and a spigot at the top. The base includes an elongated threaded stub pipe extended downward for fastening the base to a sink surface or countertop and for receiving water from a potable cold water supply line. The base includes an internal valve for controlling water flow between the elongated threaded stub pipe and the inlet of the water filter cartridge. With the valve closed, the cartridge may be readily exchanged by simply unscrewing the spent cartridge from the base and then screwing in a new cartridge.

Abstract: A tube connection assembly for external filters for aquariums comprising a container that is closed by an upper lid and contains at least one filtering mass crossed by a water stream that is forced by a pump incorporated in the lid; two valves with flow control elements, which are arranged coaxially and are coupled to each other, a lever-type regulator protruding from a central region of the flow control elements; a lever-type engagement system articulated to the assembly between the regulator and the lid, acting on the same plane as the regulator, and having a wing for engaging the lid for extraction and a wing that allows the release movement by its insertion in a coverable seat that is provided between the flow control elements and is accessible to the wing only when the regulator is in the position that causes the simultaneous closure of the streams.

Abstract: A multi-part filter combination is received in a stepped bore of a fluid-carrying component. A larger-diameter filter part is associated with a larger-diameter bore portion, and a smaller-diameter filter part is associated with a smaller-diameter bore portion. The two filter parts of the filter combination are connected by a connecting part. When the two filter parts are joined in their respective final position in the bore, this connecting part is detachable by means of a die to be introduced into the bore. The filter combination can be used in a valve block serving to receive a magnet valve.

Abstract: The invention relates to a fluid filter, such as an oil filter for an internal combustion engine, comprising a filter housing which can be closed by a screw lid, a filter element and a central, approximately tubular component which projects into the interior of the filter, whereby the central component has bearing surfaces which are used to fix said component into the filter, so that it cannot rotate. The central component and the filter housing have projections and corresponding undercuts which interact with the projections, in order to fix the central component using a detent or snap-fit connection.

Abstract: A liquid filter, especially including an oil filter cartridge (12) which is contained in a pot-shaped or cylindrical housing (10) with threaded cover (11), into which a cooler (13) is preferably installed. An outlet opening (37a) is contained in the oil cooler (13) which facilitates complete emptying of the cooler when the filter is changed. In this way, a complete replacement of the oil can be performed, so that the replaced oil is not contaminated from the outset by residues of the old oil. Thus, service intervals can be lengthened. To prevent a short circuit of the outlet opening (37a) during operation, the opening is closed by a valve stem (33) coupled to the threaded cover (11) and opened by unscrewing the cover.

Abstract: An integrated fuel filter and calibration tube for a fuel injector is preferably made from a filtration element comprising filtration media insert-molded into a thermoplastic frame member; and a metal calibration tube rigidly attached to the filtration element. The calibration tube is sized so as to fit inside of a fuel injector flow channel.

Abstract: A water valve assembly includes a valve body having defined therein a central cavity. The water valve assembly also includes an integrated filter and noise suppressor device having a component body which has defined therein (i) a number of screen members, (ii) a number of fluid channels, and (iii) a first flange secured around a periphery of the component body with each of the number of fluid channels extending through the first flange. The integrated filter and noise suppressor device is positioned within the central cavity of the valve body. A method of operating an appliance water valve assembly is also disclosed.

Abstract: The invention is an improved structure for a pipe joint filter. The pipe joint equips a water-blocking valve on the top, an extruded joint structure with male screw threads on the lateral side, and a ring pipe at the free end of the pipe joint. A washer is laid between the pipe joint and the ring pipe to prevent water leakage. The ring pipe is comprised of a screw nut on the free end of pipe joint and a tightened pipe interlocked at the inner rim of a screw nut. Furthermore, a convex edge is extended from the top of the tightened pipe. From the inner angle of the convex edge heading inward, there is a stopper edge to exactly compress the ring edge of a filtration net against the stopper edge of a tightened pipe for proper fixture of the pipe joint. Thus, a filtration net can be promptly and easily fixed between a pipe joint and a ring pipe to achieve water filtration effect.

Abstract: A filter device for fuel supply system of an internal combustion engine of a vehicle has a housing, a filter insert arranged in the housing, at a dirt side a supply from a fuel container, at a clean side an outlet to an internal combustion engine, a return to the fuel supply container from the dirt side, a valve controlling the return, the valve having a movable wall which is loaded with a fuel pressure at the clean side and holding the return closed until a fuel pressure at the clean side exceeds a predetermined value, and thereafter is released by the valve, the valve having a rod which is displaceable by the movable wall and extends through the filter insert from the clean side to the dirt side, the movable rod having an end region which is arranged at the dirt side and controlling the return.

Abstract: A liquid filter, especially including an oil filter cartridge 12 which is contained in a pot-shaped or cylindrical housing 10 with threaded cover 11, into which a cooler 13 is preferably installed. An outlet opening 37a is contained in the oil cooler which facilitates complete emptying of the cooler when the filter is changed. In this way a complete replacement of the oil can be performed, so that the replaced oil is not contaminated from the outset by residues of the old oil. Thus, service intervals can be lengthened. To prevent a short circuit of the outlet opening 37a during operation, the opening is closed by a valve stem 33 coupled to the threaded cover and opened by unscrewing the cover.

Abstract: Described is an oil filtration apparatus that includes external vanes 120 and associated outer flow passages 140 for allowing a heat exchange to occur between oil passing therein and cool air that passes by the vanes. A manually rotatable valve 154 is provided at one end of the filtration apparatus for controlling the flow of oil through the manifold. In a first position, the valve allows oil to flow through the outer flow passages through the end cap 152 and into an inner flow passage 142 where it is filtered before flowing through a central passage 134 and out the flow manifold. In a second position, the outer flow passages are blocked so that oil flows directly into the inner flow passage. A pressure sensitive valve 164 is provided in the end cap so that when the filter becomes clogged, oil is diverted directly to the central flow passage bypassing the filter.

Abstract: A combination coolant filter and pressure regulator for an automotive engine's cooling system is configured to be spliced in line with the coolant supply line to the heater core. The filter has a housing and a filter element that is moveable within the housing between a first position opening up communication through the housing and a second position restricting communication through the housing. A spring biases the filter element toward its first position. Normal coolant flow through the housing passes through the filter for removal of entrained contaminants. Under conditions of high coolant flow and thus high pressures, the filter element moves against the bias of the spring toward its second position restricting coolant flow and protecting the heater core from damage due to coolant overpressure.

Abstract: A wastewater filtration system with a housing provided by a cylindrical conduit forming a filter chamber and having an inlet end and an outlet. A shutoff valve assembly is connected to an inlet end of the housing, and includes a closure element movable between an open position and a closed position. The closure element is biased to the closed position in the absence of a filter in the chamber and positioned near the inlet such that the shutoff valve opens when a filter is installed. The closure element may be hinged to the housing, and may be counterweighted or spring biased to the closed position.

Abstract: A filter device for separating particulate material from a stream of flowable plastics; the device comprises a body member having at least a filter chamber and a flow path extending between inlet and outlet sides. A filter band transversally extends in said filter chamber, across the flow path, being supported by a back-plate having a perforated area. An axially movable valving member comprising a flow passage for the plastic material, is provided into the chamber, and an actuator to axially move the valving member between an advanced and a retracted position in which the valving member connects respectively disconnects the flow passage from the inlet or the outlet sides of the device, and for sealingly clamping the filter band peripherally around the perforated area of the back-plate.

Abstract: A diaphragm-type flush valve for use with toilet devices such as urinals and water closets includes a body having an inlet and an outlet. There is a valve seat between the inlet and outlet and a valve member movable to a closing position on the valve seat to control water flow through the flush valve. The valve member includes a diaphragm peripherally attached to the body and there is a pressure chamber above the diaphragm with water therein holding the valve member on said valve seat. An annular filter body is attached to the underside of the diaphragm at spaced locations thereon and there is a bypass orifice in the filter body positioned at one of the spaced locations. The filter body includes a plurality of peripherally spaced grooves and there is a filter ring mounted on the filter body and facing the grooves. The filter ring and grooves form a plurality of filter passages in communication with the bypass orifice and the flush valve inlet.

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

Abstract: A cap assembly for providing continuous drip to a faucet exposed to freezing temperatures such as a faucet located outside a house. The cap assembly includes a cap member adapted to be mounted over the end of a faucet, which cap member includes a cylindrical wall portion and a closed end portion having an opening therein. The cap assembly includes an internal annular ridge which is adapted to receive a flow disc within the ridge, which flow disc includes an opening which is non-aligned with the opening in the closed end portion of the cap in order to create a dripping action. A rubber washer is positioned in sealing engagement with the internal annular ridge and the flow disc. A filter member is located within the rubber washer such that, upon mounting of the cap assembly over the end portion of a faucet, a continuous dripping flow through the cap assembly may be provided in order to prevent water within the faucet or within piping leading to the faucet from freezing.

Abstract: A filter device has a bypass valve which releases a fluid-conveying path to an outlet when a filter element becomes clogged. The bypass valve includes a closure part on which at least one closure spring acts. To adjust the spring pretension and the opening force for the closure part, an adjusting device is provided for adjusting the opening force of the closure spring. The filter device can be economically adapted without any structural modifications to very different applications in a predetermined pressure range.

Abstract: A modular pressure regulator/filter wherein the fuel filter is adapted to be attached to a fuel delivery system of an internal combustion engine and the housing thereof has a projecting wall on the filter housing adjacent to a female opening in the fuel filter housing. This projecting wall has at least one slot therein. A clip is provided and includes a disc portion with a central opening therein for selectively receiving a male outlet conduit from the pressure regulator. A clip projection, which is integral with and movably attached to the disc portion, is adapted to be selectively received into the slot in the projecting wall whereby the clip is held from moving away from the projecting wall. An annular projection on the pressure regulator housing is disposed between the disc portion and the clip projection when the clip projection is in the first position thereof for holding the pressure regulator housing in the clip.

Abstract: A device for separating impurities from the lubricating oil of an internal combustion engine, in which the device (1) has at least one filter insert (2), a centrifuge (3) operable by the flow of lubricating oil, and at least one discharge channel (5) for cleaned oil, in which the filter insert (2) and the centrifuge operable by the flow of oil are in separate housings linked by at least one communicating oil channel (6).

Abstract: A sealing valve for controlling the flow of fluid through a passage defined by the interior surface of a tubular casing comprises a valve body having a longitudinal axis and a longitudinal bore therethrough. The valve body is formed for releasable connection to the tubular casing when the valve body is inserted longitudinally into the passage of the tubular casing. A valve seat is disposed on the valve body. A sealing assembly comprises a sealing device adapted for sealing engagement with the valve seat. The sealing device is movable with respect to the valve seat from a closed sealing position in which the sealing device sealingly engages the valve seat to block fluid flow through the bore in the valve body to an open position in which the sealing device is spaced from the valve seat to permit fluid flow through the bore.

Abstract: A filter including a combination bypass valve and anti-drain valve is disclosed herein. The filter includes an annular valve support which supports an annular valve member disposed between the support and a filter cartridge. The valve support has an inner sleeve portion which seats against an end plate and an outer sleeve portion including bypass louvers therethrough. The valve member has an expandable collar portion which normally seals the bypass louvers and a skirt portion which normally seals inlet openings extending through the end plate. The skirt permits flow through the inlet openings into the filter but prevents out of the filter through the inlet openings. Excessive pressure caused by a clogged filter element deflects the expandable collar away from the bypass louvers thereby permitting flow to bypass the filter element.

Abstract: A filter housing having a bracket for attaching the housing to a septic tank outlet port and adapted for fluid flow connection to an outlet port on the housing, contains a removable filter element having an outlet port connected to the outlet port on the housing and an opening in the lower end of the housing for delivering septic tank fluid to the filter, and includes a seal element buoyantly responsive closingly to fluid in a septic tank when the filter housing is mounted in a septic tank, operatively connected to the filter element for closing the open lower end of the filter housing and forming a temporary second filter at the lower open end when the filter element is removed from the filter housing.

Abstract: Paper fiber suspended in black liquor is washed in a rotating drum divided into a plurality of adjacent sectors. The fiber is formed into a mat on the drum, and the drum is rotated so the sectors progress through a first wash and a second wash of progressively cleaner wash fluid. Each sector has two distinct drainage systems. One drainage system drains the first wash water after it has passed through the mat, and is then blocked while that sector passes through the second wash. The cleaner second wash fluid is thus kept separate from the more contaminated first wash fluid, and is recirculated to be used in subsequent cycles as first wash fluid.

Abstract: A diaphragm-type control valve for irrigation systems has an outer clam-shell housing that encloses a vertically reciprocable diaphragm assembly. A primary valve seat inside the housing is engaged and disengaged by a seal on the underside of the diaphragm to open and close the valve by connecting and disconnecting its inlet and outlet passages. Pressurized water from a lower inlet chamber of the valve travels through a small metering orifice in the center of the diaphragm assembly to an upper pressure control chamber above a flexible membrane of the diaphragm assembly. A solenoid actuated pilot valve is operatively coupled to the upper pressure control chamber for venting pressurized water therefrom to permit the diaphragm assembly to move upwardly to open the valve. A filter screen is mounted to the underside of the diaphragm assembly to prevent debris from clogging the metering orifice, clogging the small passages of the pilot valve, or fouling the solenoid.

Abstract: A fuel filter with a pressure regulating valve for fuel circulated from a fuel tank and injected into an internal combustion engine. The fuel filter comprises a filter pot closed by a cover and an annular filter element for radially filtering flow from the outside in. Fuel flows in and out through main flow connections on opposite sides of the filter. There is a recirculation connection to recirculate fuel. There is a pressure regulating valve on one end of the filter housing with the discharge connection. The pressure regulating valve operates against atmospheric pressure and has a spring-loaded diaphragm which acts in conjunction with a closure ram to close the inlet port of a recirculation flow duct which passes through the center of the filter and connects the regulating valve to the return connection. The diaphragm is fastened with the valve seat in a sealed manner to the edge of the pressure regulator housing, which open into the filter port and is formed in the cover of the filter housing.

Abstract: A method of assembling an electromagnetically actuatable disc-type valve permits separate assembly of the hydraulic components from the electrical components. The constant shape of the exterior surface of the core member enables the hydraulic sub-assembly to be assembled separately from the electrical sub-assembly and thereafter inserted into the electrical sub-assembly. The valve's plastic covering is applied to the electrical components separately and before the hydraulic components are assembled with the electrical components. In this way, the heat involved does not affect the calibration of the hydraulic components. A bushing is disposed to lock the two sub-assemblies at the desired relative orientation. The fluid filter is inserted into the valve before the calibration slide is inserted into the valve. The valve is flow checked before setting the tension on the armature of the valve.

Abstract: An under counter dish washing machine has an upper spray assembly with a spray base recessed at the top of the wash compartment. An enclosed control housing is provided around the recess to house various controls in order to make use of what is otherwise wasted space. The sump of the machine is covered by a screen having an opening in which a pump filter moves up and down to open and close the drain opening. The filter has a perforated body so that all water draining to the sump must pass through either the screen openings or the perforations of the pump filter. The supply hose which delivers water to the machine is relieved from constant water pressure by a solenoid valve which closes except during a fill cycle of the machine.

Abstract: A small filter cartridge is particularly adapted to be attached to the neck of a conventional plastic soft drink bottle to filter contaminated water contained in the bottle by passing the water through the filter as it is discharged from the bottle. The flexible bottle walls are squeezed to pressurize the water and facilitate flow through the filter element. The filter includes a uniquely positioned check valve which allows pressure equalization of the bottle interior in a simple and efficient manner. The filter is attached directly to the neck of the bottle and embodiments are disclosed in which the element is inserted completely within the bottle and mounted entirely outside the bottle.

Abstract: A drinking container includes a flexible, hollow body having a neck. There is closure member removably connected to the neck. There is a spout on the closure member. A filter device is operatively connected to the spout within the body. The filter device includes a filter, a passageway bypassing the filter and a movable valve member in the passageway which opens the passageway when the container is in upright position when the spout is on top. The valve member blocks the passageway when the container is inverted from the upright position or pressurized.