Abstract: An adjustable height fill valve assembly for controlling water level in a storage tank, comprises a lower riser assembly comprising concentrically disposed inlet riser and an outer riser housing, each having an upper end and a lower end, the inlet riser and the riser housing connected together at the lower ends, the inlet riser being adapted for mounting in a hole in a flush tank, an upper riser assembly comprising concentrically disposed inner supply tube and an outer tubular valve housing, each having an upper end and a lower end, a main valve seat at the upper end of the inner supply tube, the upper riser assembly telescopically mounted on the lower riser assembly, a latch between the riser housing and the tubular valve housing for latching the upper and the lower riser assemblies in selected extended and retracted positions, the latch disengageable upon rotation of the upper riser assembly in either direction from a central position, a valve housing cap having a bayonet lock connection for quick connect d

Abstract: A siphon freeze drain valve for an underground water sprinkling system including a line operating under water pressure, the drain valve being a U-shaped tube, one end of which is passed through a hole in the top of the line, the other end of which is outside the line at a lower level than the first end. A clamp and a seal holds the tube in the line against the force of the water in the line and prevents leaking around the tube. A check valve is in the end of the tube outside the line, the check valve selectively opened and closed to control flow through the tube and for establishing a siphon for draining the line.

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: A strainer apparatus capable of being installed within an Acme type coupling of the kind used in a pipe connecting a transport gas tank to a gas storage tank comprises a perforated disc and a retainer ring. The outer surface of the retainer ring has a smooth portion and an adjacent knurled portion. The disc acts as a strainer and is permanently fixed inside of the Acme coupling by means of the retainer ring knurled portion being press fitted against the inner surface of a coupling counterbore within which both the disc and ring are installed. The Acme coupling after being fitted within the strainer disc is installed in the pipe line leading between a gas transport tank and a gas storage tank to prevent debris from being pumped through the pipe coupling and towards and possibly to the gas storage tank.

Abstract: A rapid acting flow limiting valve is provided for an autoclave processing system. In this environment, each of a plurality of parts is placed in immediate proximity with a tool, then impressed into congruent engagement with the tool by an overlying vacuum bag, the interior of the vacuum bag being subjected to a vacuum via a vacuum manifold connecting all of the parts to a source of the vacuum, the interior of the vacuum bag being subjected to pressure. A first conduit leads from the chamber of the valve housing to the interior of the vacuum bag for its associated part, and a second conduit leads from the chamber to the vacuum manifold. An annular seal is positioned concentrically with an opening from the chamber into the first conduit. A flexible disk-shaped floating piston diaphragm assembly is peripherally fixed to the housing and is movable between an open position distant from the seal and a closed position engaged with the seal to thereby block flow through the first conduit.

Abstract: A system for supplying molten thermoplastic material to a dispenser comprises a hopper for storing the thermoplastic material. A heating grid is associated with the hopper for heating and melting the thermoplastic material. A reservoir block receives melted material from the grid. The reservoir block includes a reservoir into which the melted material flows from the grid. A manifold and pump assembly is connected to the reservoir block for receiving material from the manifold block and pumping the material to a dispenser. A valve and filter assembly is mounted in the reservoir block. The valve and filter assembly includes a valve member capable of moving between an open position and a closed position for blocking the flow the material through the reservoir block, and includes a filter member for filtering material, the filter being removable to clean the filter.

Abstract: A diaphragm type of flush valve for use with toilet devices such as urinals and water closets includes a body with an inlet and an outlet and there is a valve seat therebetween and a valve member movable to a closing position on the valve seat. The valve member includes a diaphragm which is peripherally attached to the body. There is a pressure chamber above the diaphragm for holding the valve member on its valve seat and there is a filter and a bypass orifice connecting the inlet and the pressure chamber. The filter includes a filter ring positioned beneath the diaphragm and adjacent the outer periphery thereof. The filter ring and the diaphragm are held in a fixed position relative to each other. The filter ring has a plurality of outwardly directed circumferentially spaced filter grooves. There is a seal ring between the filter ring and the body and facing the grooves.

Abstract: The invention concerns a back-flow check valve having a flat valve seat with a plurality of openings which are covered by a head of a mushroom-shaped closing member manufactured of a soft-elastic material. A fine mesh sieve is arranged between the head of the closing member and the valve seat for covering the openings. The fine mesh sieve prevents the head from being partially pulled into the openings so that knobs would be formed on an interior surface of the head.

Abstract: A solenoid valve for a starting fluid injection system includes a passageway that interconnects the canister valve of the canister with a conduit that transmits starting fluid to the engine. An armature is mounted to slide in the passageway between an open and a closed position. Two valve seats are provided on opposite sides of the armature. The first valve seat is near the exit port of the passageway and is closed by the armature when the solenoid coil is not energized. The second valve seat is an annular O-ring gland designed to receive an O-ring that seals against the exterior of the canister around the threaded neck. When the coil is energized, the armature is moved to the open position, in which both the first valve and the canister valve are opened. A filter and an orifice-defining element are mounted in the valve body between the first valve seat and the exit port. The valve can operate with a coil current as low as 1 amp at 12 VDC.

Abstract: An electromagnetic valve includes a hydraulic circuit coupling having an input port and a strainer mounted over the input port. The strainer is an entirely planar member and includes a filter portion having a plurality of pores forming a mesh and a retaining portion formed around the outer circumference of the filter portion. The strainer is fixed on the cylindrical wall of the input port of the hydraulic circuit coupling. The hydraulic circuit coupling may have a plurality of projections for engaging and holding the strainer. Alternatively, the retaining portion of the strainer may have a plurality of coplanar projections extending from its outer circumference coplanar with the filter portion and mating with a groove formed around the inner circumference of the input port of the coupling.

Abstract: A valve which has a dirt filter that is accommodated in a chamber between an electromagnet valve and an inflow adapter in a valve housing. The valve is suitable for metered introduction of volatilized fuel from a fuel tank into an intake tube of a mixture-compressing internal combustion engine with externally supplied ignition.

Abstract: The invention is to a method and apparatus that provide a removable container that functions both as a filtration unit and as a removable and transportable container for transferring fuel from a Filtration Fuel Technology (FFT) process to a fuel receiving facility.

Abstract: An orifice filter suitable for placement in, among other environments, a motor vehicle transmission assemblage, includes a plastic body member with an orifice and filtration material overlying both orifice outlets, all received within a metal housing. A plastic overmold is provided outboard of the filtration material. The filter allows for bidirectional flow of fluid through the assembly, provides for a means of bleeding pressure between fluid volumes in an assemblage, and maintains the secure positioning of the orifice in the assemblage over a range of ambient and operating temperatures. Further, a method of forming a filter assembly, including coining the metal housing of the filter assembly, allows for providing proper dimensional tolerances of the housing axial length and/or housing flange.

Abstract: A sealed container and suction pump unit including a sealed container, and a suction pump adapted for drawing air out of the sealed container, the suction pump having a vacuum mount adapted for securing to the container body of the sealed container, and a bottom coupling groove adapted for coupling to the container cover of the container body of the sealed container, the container cover of the sealed container having a center air hole through which air can be drawn out of the container body by the suction pump, an upward coupling flange raised around the center air hole and adapted for engaging the bottom coupling groove, an air filter element mounted in the center air hole to remove solid particles from air passing through, a metal pressure plate supported on a seal ring inside the center air hole and attracted by a magnet to seal the air passage, and a press member mounted in the center air hole and controlled to tilt the metal pressure plate in opening the air passage.

Abstract: A hydraulic unit is connected with a control plate of a transmission with the use of a sealing element. The sealing element performs in addition to its sealing function for sealing the hydraulic passages from one another and from outside, also a parallel filtering function for preventing the dirt contained in the pressure medium from regulators of the hydraulic unit. Addition to the reduction of components, the sealing element can be mounted automatically and reliably fixed in position. Also, the sealing element can be produced cost-favorably and in any complex shape. Adaptation of the sealing element to the corresponding sealing applications is possible without additional expenses.

Abstract: An improvement in the structure of a cigarette lighter including a gas container having an open top, a head member fitted in the top of the container and having an internally threaded cavity, a core 1 including a T-shaped member and a fixing seat, and a plug threadedly engaged with the cavity and located upon the core, the plug provided at a bottom with a passage engaged with the projection of the fixing seat, whereby the cigarette lighter is simplified in structure and assembly.

Abstract: A Venturi vent valve is disclosed suitable for relieving pressure differentials in sewer systems and preventing the escape of odorous gases. The valve consists of a flared tube containing a conical valve so that the annulus forms a Venturi chamber. The conical valve is mounted axially on a rod that engages in bushes attached to the tubular body and an annular base plate and constrains the valve to move axially. The conical valve rests on a rubber washer secured and sealed to the tubular body by the base plate and prevents the escape of fluids by its own weight. The conical valve lifts off the rubber washer to admit a flow of air when the pressure in the sewer system is less than ambient and the valve opening is maintained by the pressure differential, the venturi effect and the viscous forces acting on the conical valve.

Abstract: An electromagnetically actuatable disc-type valve includes a pre-assembled hydraulic sub-assembly with a core member and a separately pre-assembled electrical sub-assembly with a body. The exterior surface of the core member is configured to facilitate insertion into the electrical sub-assembly and orientation relative thereto by use of a bushing. The outside diameter of the body of the valve is no more than 13.5 millimeters in the vicinity of the delivery end of the hydraulic sub-assembly. A fluid filter is disposed between a tensioning spring and a calibration slide to facilitate more accurate flow checking and leakage checking of the valve during manufacture.

Abstract: A vaporized fuel control valve for a fuel tank containing fuel to be supplied to an internal combustion engine, having a casing fastened to an upper surface of the fuel tank, and a float valve is housed in the casing such that it moves upward toward a seat in response to fuel level in the fuel tank. A diaphragm valve having a diaphragm is placed in the casing above the float valve for separating an interior of the casing to a first chamber communicating with a filler pipe of the fuel tank, and a second chamber communicating with the fuel tank through the float valve. The diaphragm valve opens to connect the second chamber with a canister such that vaporized fuel forced out of the fuel tank flows along a path through the float valve to the canister when the first chamber is supplied with atmospheric pressure, unless the float valve seats on the seat.

Abstract: A filter/gasket formed of woven screen material has a bead rim formed of elastomeric material molded through the screen to form oppositely disposed bead portions at a common location on the screen grid. A manifold set of servo actuated valves is ported on the manifold with the filter/gasket disposed for sealing between a separator plate and the manifold and filtering flow upon energization of any of the valves.

Abstract: An improved mixing unit and check valve for a fluid pumping system wherein gradient proportioning is performed at high pressure are described. The mixing unit has lining means disposed on the inner surface of the chamber for preventing frictional contact between the steel of the chamber and the surface of the rotor. The lining means is formed of a polymeric material selected for frictional compatibility with the rotor, and avoids formation of undesirable particulates by friction with the rotor surface. The check valve has a poppet comprising a midsection dimensioned to provide forward and rearward surfaces against which fluid flow will exert force, a first arm extending transversely from the midsection first side toward the valve inlet, a second arm extending transversely from the midsection second side toward the valve outlet, and first and second resilient seals respectively annularly disposed about the first and second arms.

Abstract: A device for transferring and withdrawing liquids or liquid media from bottles, pouches or similar containers for medical purposes. The device includes a first rotationally-symmetric body including a threaded cam, a first spike with a tip, a first main duct extending to the tip, and a first auxiliary duct extending to the tip. The first auxiliary duct narrows to a capillary-like opening adjacent to the tip. A second rotationally-symmetric body is provided which includes a second spike with a second main duct and a second auxiliary duct. The first body is centrically plugged into the second body wherein the first spike is diametrically disposed with respect to the second spike. The first and second main ducts form a substantially linear, axially extending flow path through the device. The first and second bodies include a recess formed between the first auxiliary duct and the second auxiliary duct.

Abstract: The invention is a bellows valve which seals the stem of the valve. Dirt and other contaminants are trapped by the bellows. The valve includes a cover having a sintered metal filter therein. The filter permits gas to flow therethrough but does not permit dirt or other particulate contamination to flow therethrough. Pressure is equalized across the wails of the bellows allowing the valve to operate at high pressures while ensuring that the gas or fluid transported through the valve is kept clean.

Abstract: A valve for high-pressure radial piston pumps suitable for controlled brake systems. Prior art pumps consist of at least 5 elements. The valve includes less components and thus is less expensive to manufacture and easier to assemble. The valve's simplicity derives from the use of cold extruded connections between the valve and the housing, so that separate rubber sealings are superfluous, and which provide for a strong and non-detachable connection. Favorable embodiments of the present invention integrate some of the known valve elements thus reducing the number of the necessary cold extruded connections.

Abstract: The invention relates to a venting valve for a fuel tank and includes a valve seat and a valve body which lies in sealing contact engagement therewith. The sealing surface of the valve seat faces toward the interior space of the tank in order to ensure an operationally-reliable venting even after long periods of operation without the danger of an outflow of fuel. The opening movement of the valve body is directed toward the interior space of the tank. A fine-porous air filter made of sinter material is mounted forward of the valve seat when viewed in flow direction toward the interior of the tank.

Abstract: A valve device which can reliably seal water even after a long continuous use. It has a valve seat made of a hard ceramic having a fluid passage and a valve body made of a self-lubricating polyphenylene sulfide resin and slidably put on the valve seat. Inlet passages are formed in the valve body. The surface of the valve body to be brought into sliding contact with the valve seat is lapped into a flat or crowned smooth surface after swelling the valve body with liquid. Otherwise, the valve seat and the valve body are made of synthetic resins that show no adhesion to each other. The base and the valve seat may be integrally formed. Also, elastic packings may be provided on the end face of the base so as to protrude into the bottom openings of the inlet passages. Small-dimater flanged rings are fixed in position by the elastic packings.

Abstract: A first stage pressure regulator for use with a high pressure source of breathable gas includes a housing and means for attaching the housing to a high pressure source of breathable gas. A pressure regulated outlet is provided and a valve seat member fixed within the housing includes a central seating surface perpendicularly disposed to a longitudinal axis of the valve seat member. The perimeter of the valve seat member is shaped to enable the breathable gas to pass parallel to the valve seat member longitudinal axis in order to enable the high pressure source to be connected coaxially with the first stage pressure regulator. A piston is provided which includes a hollow center in fluid communication with the pressure regulated outlet. An open end of the piston is provided for sealing the piston against the central seating surface of the valve seat, and a spring is provided for biasing the piston in order to effect a regulated valve opening between the piston open end and the valve seat member.

Abstract: A filter for a valve inlet is drawn into a flat-bottomed cup shape from a blank of fine mesh woven screen and formed with an outwardly extending mounting flange of material folded back on itself. The region of the cup-shape proximate the flange is enlarged to a predetermined diameter for closely interfitting the flow passage into which the cup-shaped member is installed.

Abstract: Disclosed is a fuel gas supply adjuster which allows free adjustment of the flame length and enables stable flame length adjustment, for example in a gas lighter. In the fuel gas supply adjuster of the invention, a membrane filter which can provide a minimum necessary fuel retaining volume is used as the filter so as to prevent the fuel from being fed excessively at the initial ignition. Moreover, in order to incorporate the membrane filter in a fully sealed structure with a minimum necessary space being secured therein, one surface of the membrane filter is brought into close contact with that surface of an elastic member which has a conical recess, and the other surface thereof with the pressing face of a pressing member, while the other face of the elastic member with the fitting face of a base member, and the side face thereof with the side sealing face of the base member, respectively.

Abstract: A valve assembly including a valve housing adapted to be fixed in the bore of a member supplying fuel under pressure, the valve housing including a bore which extends along an axis, which is adapted to communicate with the bore of the member and which has an end portion defining a valve seat, a valve member moveable in the axial bore in the valve housing between a closed position in which the valve member is engaged with the valve seat and an open position in which the valve member is spaced from the valve seat, the valve member including an inner end, a retainer rigidly fixed to the inner end of the valve member, and a spring bearing against the valve housing and against the retainer so as to bias the valve member into the closed position when the fuel pressure in the valve assembly is below a predetermined pressure.

Abstract: A two piece throttling valve is disclosed. The valve assembly includes a stationary outer housing with an inner removable operable assembly. In this configuration the piping (pump stack) does not have to disassembled to remove, clean or replace the internal valve pieces or the in-line screen. The inner assembly can be quickly removed for cleaning. The entire valve assembly is heated to reduce deposition of volatile process byproducts on the internal valve surfaces and reduce the cleaning frequency. A wedge plate is provided in the outer stationary valve housing to mate with a sloped bottom surface of the inner valve housing such that when the inner assembly is in position in the outer valve housing there is a tight fit between adjacent sealing surfaces around the valve bore. A single flat surface seal provides vacuum sealing between the inner assembly and outer housing. A dual valve stem (shaft) seal seals the valve shaft.

Abstract: A respirator filter assembly for use in a respirator apparatus wherein the assembly includes a respirator filter cartridge having a housing which contains filter material and has an inlet portion and an outlet portion, and a valve device that is selectively securable to an opening of the inlet portion, the outlet portion of the housing being preferably securable to respirator structure such as a face mask. The valve device preferably comprises a valve support member and a one-way valve element. The support member is provided with means for detachably securing the valve device over the inlet portion whereby the valve element is situated to regulate the inlet opening. The support member also desirably has a means for connecting the support member to the respirator apparatus, preferably the filter cartridge, such that the valve device may reside in a position so as not to obstruct the filter cartridge inlet opening when the valve device is not attached to the inlet portion.

Abstract: A magnetic-latching of either of the selected operating positions of a two-position valve utilizes a generally toroidal magnetic circuit that is established by spaced inner and outer annular walls which are connected at their axial ends, with an inlet-port fluid-flow connection at one end to the interior of the inner wall, and with an outlet-port fluid-flow connection from the interior of the inner wall. The inner wall has a gap between axially spaced first and second annular pole faces. A single electrical excitation coil is coupled to the magnet circuit at overlap with the inner annular wall on one side of the gap. A disc-shaped armature is compliantly supported for axially shuttled displacement in the gap in alternating abutment with one to the exclusion of the other of the pole faces.

Abstract: A removable storm drain cartridge to preserve the ground water quality to improve the environment for separating storm run-off water and removing oil and heavy debris from the storm run-off water, conveniently and inexpensively for use in a conventional storm drain, the cartridge including a heavy duty rectangular box container that is waterproof, an interior passage that is smaller in cross-sectional area that covers the top opening, forcing all storm water to flow through the interior passage first, the interior passage having a shortened length relative to the container length so that water flow will be out of the interior passage up the side walls of the exterior container out through openings in the top of the side walls. An oil trap is strategically located across the opening of the container to catch oil particles and remove them from the water flowing therethrough, while rocks, sand, and other debris will collect in the bottom of the container.

Abstract: There is disclosed a wand activated dispensing valve that can be installed on the spouts of water faucets. The valve includes a housing having an internal cup-shaped member with the bottom wall of the cup-shaped member being foraminous and having a substantial thickness. The bottom wall preferably has a plurality of circumferentially disposed radial slots in an outer annular area, surrounding a central wand aperture which receives a rod-like wand. Preferably the wand aperture is surrounded by an internal recess in the bottom wall of the cup-shaped member which receives the bulbous upper end of the wand, capturing the wand in the assembly. The lower end of the valve member rides on the bulbous upper end of the wand and the valve member is lifted when the wand is tilted to one side. The housing includes a valve plate having a central port which receives the valve member, the upper end of which seats against a valve seat carried by the valve plate.

Abstract: An improved structure of an elbow pipe having filter to filter waste material contained in polluted water. The filter is provided within a cup which is screwed tight to the bottom region of the pipe and can be easily unscrewed for the removal of the blocked waste material.

Abstract: A restrictor valve functions as an outlet valve in a metered liquid dispensing system and utilizes a spring biased, shiftable anti-siphon check valve to prevent fluid flow back from the receiving tank into the system. The restrictor valve is attached to the delivery end of the system discharge hose. The dispensing system is controlled by a central electronic unit and the restrictor valve includes a sensing unit for signalling the electronic control when liquid is present at the outlet. The restrictor valve is connected to the receiving tank by a low spill coupling to minimize escape of the liquid into the environment. The restrictor valve may also include a vacuum breaker valve which admits air into the discharge hose when the system pump is run in reverse to remove the prime from the discharge hose.

Abstract: A bypass orifice and filter for use in the diaphragm of a toilet room flush valve includes an orifice member adapted to be mounted in the flush valve diaphragm, and a filter element attached to the upstream side of the orifice member. The orifice member has a metering restriction to limit the flow of water therethrough and the filter element has a plurality of openings therein in communication with the orifice member metering restriction. The smallest dimension of the openings in the filter element are less than the smallest dimension of the metering restriction so that any particle in the water passing through the filter element will pass through the metering orifice. In some embodiments the orifice member and filter element are an integral unit.

Abstract: A device for the gasification and flow control of liquified petroleum gas (hereinafter referred to as "LPG") in an apparatus such as a gas lighter for cigars and cigarettes, a gas igniter and a portable gas torch, said apparatus comprising a pressure container, a valve and a nozzle, said pressure container containing LPG, said LPG being subjected to gasification and flow control when said valve is opened, gasified LPG being emitted through said nozzle. The improvements comprise an orifice having a diameter of about 30 to 200 .mu.m and a microporous film having a hydrophobic property, said orifice being disposed at an upstream side of said valve, said microporous film being disposed at an upstream of said orifice. An unwoven fabric having a thickness of about 0.1 to 0.3 mm is preferably disposed between said orifice and said microporous film. A valve seat may be provided with an opening having a diameter of about 30 to 200 .mu.m, said opening serving as an orifice.

Abstract: A ball valve comprising a body including a valve chamber having inlet and outlet ports, and a rotatable ball element disposed within the valve chamber, the ball element having a conduit therethrough which communicates with the inlet and outlet ports. The ball element is movable by a control lever between an open position and a closed position. The valve is provided with a lockable security device which automatically locks the ball element in a positive closed position when the control lever moves the ball element from an open position to a closed position. The lockable security device includes a rotatable cylinder, a locking cylinder slidably mounted on the rotatable cylinder, a supplemental locking member to selectively allow manual locking of the locking cylinder in a position to prevent sliding movement of the locking cylinder on the rotatable cylinder.

Abstract: A backflow valve for use in a post-mix carbonator system for preventing the backflow of carbonated fluid, thereby preventing the contamination of the fresh water supply, and indicating when such a backflow condition has occurred. In a first embodiment the valve comprises a check seat body which houses an elastomeric valve member, and a sight glass body for viewing the position of the elastomeric valve member. The elastomeric valve member allows normal the flow of fluid from the supply to the outlet and prevents the reverse flow of fluid when the pressure at the outlet exceeds the pressure at the supply. As the pressure downstream increases, the elastomeric valve member is forced in the upstream direction over a plurality of steps in the check seat body. The position of the elastomeric valve member may be observed through a sight glass body which has a line marking the normal position of the elastomeric valve member.

Abstract: A fluid control valve (10) comprising: a fluid carrying core (12) and separatable magnetic field generating portion (14). The fluid carrying core (12) comprises: a magnetic armature (30) movable through a working gap (32) within a thin walled tube (34). The armature includes a first plurality of grooves (100) to permit fluid flow thereacross. The tube is joined to a magnetic first member (50) in a manner to form a leak-free seal (56) generally at one end of the tube. A second member (80) partially seals the other end of the tube and includes second flow means a second plurality of axial grooves (84) for receiving fluid carried to the valve (10) and for communicating same with the armature (30). Various passages are provided to carry fluid to and from the valve. The position and number of passages permit the valve to be used as a two-way valve or as a three-way valve passage means (88;64) for transporting fluid away from the valve (10).

Abstract: A primary filter for the fuel supply circuit of a combustion device such as a motor vehicle engine which removes particulates and other contaminants from the fuel prior to being passed through a transfer pump. The primary filter of this invention replaces conventional primary filters having replaceable filter elements thereby reducing maintenance requirements. The primary filter includes a generally horizontally extending elongated cylindrical passage having an enlarged cross-sectional area compared to the inlet port, thus causing the fuel velocity to decrease and permitting heavy particulates and contaminants to settle out. Fuel is removed from the top of the primary filter which causes the fuel to undergo a change in direction which further enhances the contaminant separation effect. Contaminants are collected from the lower portion of the primary filter in a collection bowl or remotely located collection tank. Magnetic particles are removed from the fuel using a permanent magnet or electromagnet.

Abstract: An output pressure control apparatus particularly adapted for HVAC control applications, and being of the general type which admits a higher supply pressure to a controlled output line when it is desired to increase the pressure in the output line and which bleeds pressure from the controlled output line when it is desired to reduce the pneumatic output pressure. The pressure regulating apparatus requires only a single filter means and utilizes bidirectional flow of air through the filter means during normal operation which cleans the filter means.

Abstract: The fuel pressure regulator has a new and unique means for integrating the filter screen and axially capturing one of two O-rings seals. A crimp and a shoulder on the outlet tube unite the outlet tube, the housing, and a washer that in one embodiment performs both the function of sandwiching the filter screen between itself and the wall of the housing through which the outlet tube passes and the function of cooperating with the housing in defining the groove which captures one of the two O-ring seals. The invention offers meaningful improvements in both manufacturing and cost.

Abstract: A nozzle support arrangement in an electromagnetic valve includes a frame, a solenoid fixedly mounted on the outside of the frame, a valve element arranged on the inside of the frame and driven in advancement and retreatment by the solenoid, a nozzle arranged on the inside of the frame and arranged so as to be opposed to the valve element, and support member by which the nozzle is supported on the inside of the frame. The support member includes a plurality of spacer sections fixedly mounted in an upstanding manner on the inside of the frame, and a plurality of latching sections arranged respectively at forward ends of the respective spacer sections and rotatably latching the nozzle.

Abstract: An improved "air box" for fuel measuring systems eliminates the regulator, filter and needle valve and replaces those components with a manifold and simple flow restrictor. In a preferred embodiment, three flow restrictors made of a porous, sintered metal are used in a low pressure outlet fitting which is threadably attached to the manifold. The air flow restrictor assemblies can be easily removed from the air box manifold and cleaned or replaced.

Abstract: A refrigerant metering device for a vapor compression refrigeration system. The metering device employs a restrictor fabricated of a porous material to achieve the desired pressure reduction across the device. The porous material is housed in a casing that provides support for the restrictor and enables installation of the device into the system. Any suitable porous material may be used to make the restrictor, but in the preferred embodiments, a porous polyethylene material is used. In the preferred embodiments, a filter is provided upstream in the refrigerant flow path to reduce the possibility of restrictor fouling and resultant system performance degradation. In one embodiment, the filter and restrictor are combined as two sections of an integral filter and restrictor. The device is effective in reducing refrigerant flow noise during both steady state operation and post shutdown transients.

Abstract: An environmentally safe fluid extraction device for use in mobile laboratory and industrial settings comprising a pump, compressor, valving system, waste recovery tank, fluid tank, and a exhaust filtering system.

Abstract: A metal diaphragm valve comprises a valve cage, a metallic valve seat integral with the valve cage, a metal diaphragm having a peripheral edge portion supported in a .[.liquid-tight.]. .Iadd.fluid-tight .Iaddend.manner by the valve cage and a central portion facing the valve to touch and leave the seat, a drive member for opening and closing the metal diaphragm, and a diaphragm pressing member interposed between the drive member and the metal diaphragm and adapted to press the diaphragm against the valve seat at a uniform sealing pressure.