Abstract: A dual union drain valve assembly has one or more reversible check valve inserts in the fitting(s) that are coupled to the drain valve body. The coupling of the fittings to the drain valve body is done using union couplings permitting the easy installation and/or reversal of the check valve insert(s). In addition, the union couplings permit removal of the dual union drain valve assembly from the surrounding plumbing system for service or replacement of the dual union drain valve assembly.

Abstract: Apparatus and associated methods relate to remote priming of a texture sprayer. The texture sprayer includes a main unit, a hose assembly and a spray gun, the main unit includes an air compressor, a sensor that senses a parameter of air compressed by the air compressor, and a texture material pump that is activated and deactivated in response to the parameter sensed. A spray gun can be remoted coupled to the main unit via the hose assembly. The spray gun includes a nozzle, from which the texture material is forcefully expelled as a spray, a trigger, and a prime valve. Actuation of the trigger causes the spray gun to mix the compressed air with the texture material and to forcefully expel the texture material as a spray from the nozzle, thereby causing flow of the compressed air. Opening the prime valve releases the compressed air thereby causing flow of the compressed air.

Abstract: A method of preventing drippage in a fluid dispensing system. The fluid dispensing system includes a first automatic control valve (ACV), an input of the first ACV connected to fluid-source of fluid, the first ACV having positions ranging from fully closed to fully open, and a second ACV, an input of the second ACV being connected to an output of the first ACV, and an output of the second ACV being connected to a nozzle, the second ACV having positions ranging from fully closed to fully open. The method includes generating a first proxy signal representing at least a first indirect measure of a position of the first ACV. The method includes recognizing, based on at least the first proxy signal that a failure state exists in which the first ACV has failed to close. The method includes causing the second ACV to close when the failure state exists.

Abstract: The disclosed technology can include a bypass valve assembly having a partition that can fluidly separate an inlet and an outlet of a fluid heating system. A first bypass valve and a second bypass valve can be mounted to the partition and configured to permit a fluid to flow between the inlet and the outlet. The first bypass valve and the second bypass valve can be configured to transition between a closed state and an open state. The first bypass valve and the second bypass valves can each have a spring configured to transition the respective first and second bypass valve from the closed state in response to experiencing a pressure that is greater than or equal to a respective first or second predetermined pressure. The second predetermined pressure can be greater than the first predetermined pressure.

Abstract: A manifold for use with a fluid delivery system includes a fluid inlet defining a portion of a common channel, a fluid nozzle outlet, a plunger housing of an integrated valve, a collar of a coupling mechanism, and a mounting structure. The fluid inlet, fluid nozzle outlet, plunger housing, collar and mounting structure of the manifold are integrally-constructed. A manifold assembly for use with a fluid delivery system includes at least a first and a second manifold. Each manifold includes a fluid inlet defining a portion of a common channel, a fluid nozzle outlet, a plunger housing of an integrated valve, and a collar of a coupling mechanism. The fluid inlet, fluid nozzle outlet, plunger housing, and collar are integrally-constructed, and the fluid inlet of the first manifold is received by a portion of a common channel of the second manifold.

Abstract: An air valve assembly includes a housing defining an internal channel, a plunger member positioned in the internal channel and configured to slide relative to the housing, a biasing member positioned in the internal channel and configured to apply a biasing force onto the plunger member, a sealing member defining a first inflation aperture, the plunger member slidably received by the first inflation aperture, a second deflation aperture defined by the housing and in fluid communication with the internal channel, and a deflation control member slidably connected to the housing, the deflation control member configured to selectively seal the second deflation aperture.

Abstract: An isolation valve including a main body including a fluid passage, a first port connected to the fluid passage, a second port connected to the fluid passage, a third port including an openable and closable valve, the valve connecting the third port to the fluid passage, and a plug removably coupled to the second port.

Abstract: A knob assembly includes a front panel, a knob located at a front side of the front panel and configured to rotate based on operation by a user, a knob shaft that is coupled to the knob and that extends through the front panel, a supporting pipe that receives the knob shaft and that supports the knob shaft, the supporting pipe being configured to maintain a position relative to the front panel, a valve configured to control supply of gas to the appliance, a valve shaft connected to the valve and configured to control the valve to adjust a flow rate of gas based on rotation of the valve shaft, and a joint that couples the knob shaft to the valve shaft and that is configured to transfer at least one of a rotational motion or a linear motion of the knob shaft to the valve shaft.

Abstract: A method of aseptically distributing fluid to a plurality of vessels includes securing the plurality of vessels relative to a hub and flowing fluid through an input tube into a plenum of the hub such that a substantially equal amount of fluid flows from the plenum into each of the vessels simultaneously. The vessels are positioned in the same plane relative to one another with each vessel having an inflow conduit extending from the hub to the vessel such that an arc segment is formed between the hub and the vessel.

Abstract: An electromagnetic positioning device includes an armature member for actuating a positioning partner and movable in an armature space relative to a stationary core (30). The armature member conducts magnetic flux upon energization of a stationary coil (32). The coil has a coil support with a winding and at least one external contactable connector (46) embedded at least in sections in the core and/or surrounded by the core. The core has an end surface (34), which is planar at least in sections, for interacting with the armature member. The core and the coil are embedded in and/or surrounded by a one-piece pot-like and/or cup-like housing (38) made of a material suitable for deep-drawing in such a manner that the core rests on a membrane-like, continuous and closed base section of the housing, the base section realizing a boundary surface of the armature space.

Abstract: One embodiment of a lumbar support system includes one or more air cells adapted to be mounted to a vehicle seat assembly, a pump selectively inflating the air cells, and a valve fluidly connected between the pump and the air cells. The valve includes a body defining a pair of cavities corresponding with each of the air cells. The valve further includes an inflate plunger movable in one of the cavities to selectively open the cavity and a deflate plunger movable in the other cavity to selectively open the other cavity. Furthermore, the valve includes an actuator movably coupled to the body between a first operational position to inflate the air cell, and a second operational position to deflate the air cell. An electrical switch is electrically coupled to an electrical input of the pump and closed when the actuator is moved to the first or second operational positions.

Abstract: A valve device for controlling fluid flow direction includes a cap; a valve seat secured to the cap to form a first outlet, a second outlet, and an inlet between the first and second outlets; a stem moveably disposed in a chamber between the first outlet and the second outlet; a pulse-width-modulated electromagnetic valve being adjacent to the first outlet; and a channel disposed between the stem and the pulse-width-modulated electromagnetic valve. In a first operation the pulse-width-modulated electromagnetic valve opens the first outlet and closes the second outlet so that water flows from the opening to the first outlet via the chamber and the channel. In a second operation the pulse-width-modulated electromagnetic valve closes the first outlet and opens the second outlet so that water flows from the opening to the second outlet via the chamber.

Abstract: A switching valve contains a sleeve member, a plug member, and a damping spring. The sleeve member includes a watering segment, a spraying segment, a peripheral fence, a side fence, a channel, a first watering chamber, and a second watering chamber. The peripheral fence has a first valve seat, a second valve seat, and at least one set of inlet. The first valve seat has a conical first closing face and a plurality of stop blocks. The second valve seat has a conical second closing face. The plug member includes a first sealing portion, a second sealing portion, and guiding ribs. The first sealing portion has a first ring, and the second sealing portion has a second ring. Each guiding rib has a guide face, and between any two adjacent guiding ribs is defined a slot. The damping spring is mounted between the side fence and the plug member.

Abstract: The present invention provides an improved pressure relief valve comprising a tubular main body with a pressure relief peroration, a pressure adjustor with an anti-leakage rubber and an anti-reverse unit; wherein the main body comprises a mount opening, an air outlet and a conduit between the air intake and outlet. The conduit comprises an abutting portion; the pressure adjustor is mounted on the air intake and the anti-reverse unit is fastened onto said outlet. As the pressure adjustor is connected to an air pump and said outlet is connected to an air-filling article, the pressure value of said article is set via the pressure adjustor. As said article reaches said pressure value, the anti-leakage rubber of the pressure adjustor is pushed such that air is released from the relief perforation and the anti-reverse unit abuts the staged portion of the conduit to maintain the article at a stabilized filling state.

Abstract: A service valve assembly that is designed to minimize leakage by reducing the number of leakage paths from the valve assembly. In addition, the service valve assembly is designed to permit connection to many different refrigeration systems and has higher flow capacity. The valve assembly is engageable by current servicing tools so that purchase of new service tools is not required. In the valve assembly, the service connection is designed as part of the shut-off valve and communicates with the condenser side port. Therefore, initial processing through the condenser side port and subsequent processing through the evaporation side port occur through the combined service connection and shut-off valve structure. Once installed, the described valve assembly has one leak path versus two leak paths in known valve assemblies.

Abstract: A flow meter trap primer valve assembly for regulating flow includes an inlet for receiving water from a supply, a check valve mounted within an adaptor having an elongate bore forming a jet, and the check valve includes a piston mounted within a cartridge. A biasing element normally urges the piston against a trap seat.

Abstract: A flow path switching valve is disclosed that can be operated remotely simply by turning flow on and off. A mid portion of the body has at least one passage therein leading from a central axial bore to one or more external ports each having a tractor nozzle. The valve outlet connects the axial bore to a cleaning nozzle. A poppet member is received in the central axial bore. In a first position, the poppet member directs fluid flow through the outlet to the cleaning nozzle connected to the outlet. The poppet member, when in a second position, closes the central axial bore through the outlet end of the valve body and permits fluid flow through the tractor nozzles. Selection of the different flow paths is made by simply reducing flow through the valve below a predetermined fluid flow threshold and then increasing the flow rate above the threshold.

Abstract: Regulation valve for a gas cooking appliance adapted for the supply of first and second different types of fuel gas, such as natural gas or liquefied gas. The regulation valve has a valve body with an inlet conduit and an outlet conduit, and a rotatable regulating organ housed in the valve body. The regulating organ has a plurality of inlet holes connected to the inlet conduit which, by means of the rotation of said regulating organ allow a gas flow to be altered, the inlet holes of the regulating organ corresponding to the first type of fuel gas are in a first axial position and the inlet holes corresponding to the second type of fuel gas are in a second axial position.

Abstract: A fluid transfer device for transferring fluid into or out of a fluid vessel, such as a tank, and is particularly useful in transferring fluids with particulates or high viscosity in a substantially aseptic, hygienic, or sterile manner. The device has a body with an elongate passage extending through the body. The body has a proximal end and a distal end. A longitudinally displaceable shaft is disposed in and extends along the passage in the body. A plug sealing the passage is at a first location. A diaphragm sealing the passage is at a second location intermediate the plug and the distal end of the passage. The shaft extends through and is secured to the diaphragm. A fluid transfer opening is located in the passage between the diaphragm and the plug. Longitudinal displacement of the shaft causes the fluid transfer opening to be in fluid communication with a fluid vessel, the diaphragm stretching to accommodate the displacement of the shaft while maintaining an aseptic seal of the passage.

Abstract: A hydraulic apparatus includes a housing portion having two main conduits and a central conduit. Valves are supported in the housing portion. At least one valve is interposed between each main conduit and the central conduit. Each of the valves has a closed position for preventing a free flow of fluid between the central conduit and its associated main conduit and have an open position for enabling the free flow of fluid between the central conduit and its associated main conduit. The hydraulic apparatus also includes a bypass valve assembly having a plunger portion that extends into the central conduit. The plunger portion is movable in an axial direction for moving the valves from the closed position to the open position.

Abstract: Disclosed herein is an exemplary supplemental heating system including a liquid heat generator having a hydrodynamic chamber for selectively heating a fluid. The supplemental heating system further includes a manifold having an inlet passage fluidly connectable to a discharge passage of a heat exchanger, a first discharge passage fluidly connectable to an engine cooling system, and a second discharge passage fluidly connected to an inlet passage of the hydrodynamic chamber. A control valve comprising a spool slideably disposed within the manifold controls distribution of the fluid between the manifold inlet passage and the first manifold discharge passage, and the manifold inlet passage and the manifold second discharge passage.

Abstract: A manifold assembly used to control the flow of oxygen in an oxygen concentrator system The manifold assembly provides a series of internal pathways which receive a primary and secondary relief valves via external orifices. The manifold reduces the number of component connections and potential leak paths for control and monitoring of process media.

Abstract: An integrated three-way poppet valve is disclosed with an intermediate pilot port and an integral load holding check valve. The valve incorporates a reverse flow check poppet for load hold capability, which enables a lower cost solution compared to a combination of valves of similar functionality. A control method is also disclosed using an integrated three-way poppet valve to control the flow of hydraulic oil to a cylinder, hydraulic motor, or other hydraulic device in proportion to the amount of a current applied to a solenoid coil. Depending on the current applied, the valve blocks all flow or else permits flow from one inlet port to two outlet ports proportional to the current applied.

Abstract: A piston, which is displaceable by pilot air, is provided in a main body. A valve plug, which is composed of a resin material, is connected to an end of a shaft connected to the piston. The valve plug is seated on a valve seat section of a sub-body connected to the main body, and thus the flow of the paint to a flow passage is cut off. A seating section of the valve plug, which is to be seated on the valve seat section, is formed to be substantially spherical. Further, the surface of the valve seat section is recessed and substantially spherical corresponding to the seating section.

Abstract: A portable manifold assembly that includes a manifold structure, a male quick connect coupled in fluid connection with the manifold structure, a plurality of female quick connects coupled in fluid connection to the manifold structure and a handle that is rotatably mounted on the manifold structure for rotation about a longitudinal axis of the manifold structure.

Abstract: A device for adjusting and throttling the flow-rate of a fluid, particularly medical oxygen and compressed gases in general, which comprises a valve body which defines an input port and an output port for a fluid at high pressure; the input port is controlled by a high-pressure flow control element; an input duct is also provided for a low-pressure fluid which is connected to a rotating body with a control port which can be arranged at the calibrated holes provided in an adjustment disk and connected to at least one output duct; a single actuation handwheel is further provided which drives the high-pressure flow control element and the rotating body.

Abstract: The object of the present invention is to provide a switching valve capable of increasing the opening stroke of a valve operated by a differential pressure while saving space, thereby reducing pressure loss. A first valve is disposed between an inlet port and a first outlet port. A pilot valve is provided between a back pressure chamber for a movable plug that holds a valve sheet disposed in a manner opposed to a valve seat, and the first outlet port, such that the first valve is operated by a solenoid. A second valve is arranged between the inlet port and a second outlet port. A back pressure chamber for a movable plug that holds a valve sheet disposed in a manner opposed to a valve seat and the first outlet port are communicated with each other. The second valve is opened by the differential pressure generated by closing of the first valve, and when the first valve is opened, the second valve is closed by the spring since the differential pressure is reduced to zero.

Abstract: A relief valve assembly is disclosed to include a casing, an one-way valve mounted in the fluid input end of the casing for guiding in a fluid, and a relief control valve installed in the casing between the fluid input end and fluid output end and controllable to reduce the inside pressure of the casing, the relief control valve including a guide tube fastened to the casing in fluid communication between the fluid input end and fluid output end of the casing, a valve stem axially movably inserted through the guide tube, an O-ring in a groove around the valve stem between the head of the valve stem and a flange at one end of the stem body of the valve stem, and a spring member connected between the guide tube and one end of the valve stem to hold the valve stem in the close position to close the passage of the guide tube, and a control member fastened to one end of the valve stem outside the guide tube for pressing by hand to move the valve stem to the open position to open the passage of the guide tube.

Abstract: The relief valve assembly (10) includes a tube (24) having a circular threaded portion (30) adjacent a first end (28) that rotatbly receives an interconnection means. The tube other end has male threads (34) for connection to a water-use point. A valving means actuator (46) has a tapered head (50) which can be manually operated to be located in blocking or unblocking relation within an opening (44) in the tube (26) for selectively emitting liquid to the ambient and reducing internal tube water pressure. A system lock (57) enables selective locking or unlocking of the relief valve assembly (10) as desired.

Abstract: A gas valve switch structure of a gas stove includes a top base, an aluminum plate, a sealing washer, two rubber washers, two fixing pieces, a female base, and a protective plate. The protective plate is used for sealing the rubber washer and the fixing piece in the oblong hole of the female base. Then, the top base is screwed on the female base, with the aluminum plate and the sealing washer being clamped between the top base and the female base. The air storing chambers of the female base are closed while the rubber washer and the fixing piece are sealed in the oblong hole of the female base by provision of the aluminum plate and the sealing washer, and the gas valve switch structure of the gas stove achieves a gas triple safety switch by provision of the two electromtagnetic valves and the control bolt.

Abstract: A suction inlet valve for fire truck pumpers has a male body portion and a female body portion, the portions defining a chamber therein. A cone-shaped valve element is connected to a valve stem which has a cam body thereon with a cam slot therein. The cam slot receives a projection from an operating shaft which projects out of the housing. The operating shaft has an operating handle thereon which is exposed to the environment and conducts heat from the chamber. If there is water in the chamber, there is an increased chance of water in the cam slot freezing disabling operation of the valve. To drain water away from the cam slot, a drain is provided in the male body portion for draining water from the chamber.

Abstract: Disclosed is a composite valve comprising a valve body that is provided integrally with a solenoid valve portion and a differential pressure valve portion. The valve body is formed with an upper valve chest, a lower valve chest, a refrigerant introduction chamber that communicates with the upper valve chest and has a differential pressure valve seat, and a back pressure introduction chamber that communicates with the lower valve chest. A main valve element that is opened and closed by means of the solenoid valve portion is located between the upper valve chest and the lower valve chest. A differential pressure valve element that is opened and closed by means of a differential pressure between the refrigerant introduction chamber and the back pressure introduction chamber is located between these two chambers. The refrigerant introduction chamber, back pressure introduction chamber, and differential pressure valve element are arranged so as not be situated on the outer surface of the valve body.

Abstract: The object of the present invention is to provide a switching valve capable of increasing the opening stroke of a valve operated by a differential pressure while saving space, thereby reducing pressure loss. A first valve is disposed between an inlet port and a first outlet port. A pilot valve is provided between a back pressure chamber for a movable plug that holds a valve sheet disposed in a manner opposed to a valve seat, and the first outlet port, such that the first valve is operated by a solenoid. A second valve is arranged between the inlet port and a second outlet port. A back pressure chamber for a movable plug that holds a valve sheet disposed in a manner opposed to a valve seat and the first outlet port are communicated with each other. The second valve is opened by the differential pressure generated by closing of the first valve, and when the first valve is opened, the second valve is closed by the spring since the differential pressure is reduced to zero.

Abstract: A valve block assembly includes a cartridge block and a plurality of modular pilot valve operated poppet valve assemblies. The cartridge block has a plurality of bores therein dimensioned and configured for receiving respective modular pilot valve operated poppet valve assemblies. The cartridge block has a first side and each of the bores extend from the first side into the cartridge block. Each of the modular pilot valve operated poppet valve assemblies having a supply air port, an operating air out port and an exhaust passage and each of the modular pilot valve operated poppet valve assemblies are accessible for installation and removal from the cartridge block from the first side.

Abstract: A tube joint that can be used as a volume control valve, air sprayer or/and a T-tube. The multifunction tube joint mainly contains: an elongated body, a revolving valve, a stem, a branch, a piston valve rod, a button and a spring. The elongated body contains: a main channel longitudinally therethrough, a protrusion thereon and a tunnel vertically therethrough. The protrusion has a receptacle therein communicated with the main channel. The revolving valve is rotably received through the tunnel. The revolving valve has a controlling channel vertically therethrough. The controlling channel is communicable to the main channel. The stem is connected to the receptacle. The stem has a stem channel therein, communicable with the main channel. The branch is connected to the stem. The branch has a branch channel therein communicated with the stem channel of the stem. The piston valve rod is slidably received in the stem channel of the stem with a first end extended out thereof.

Abstract: A filling connection has an actuating element and a discharge connection on the valve body of the gas cylinder valve. In addition to the discharge connection a filling union is provided on the valve body. The filling union extends in its longitudinal direction, and actuating element are arranged opposite the discharge connection and at the side on the valve body. Preferred embodiments include having the discharge connection and the filling union arranged at right angles to one another on the valve body.

Abstract: A gas valve switch structure of a gas stove includes a top base, an aluminum plate, a sealing washer, two rubber washers two fixing pieces, a female base, and a protective plate. The protective plate is used for sealing the rubber washer and the fixing piece in the oblong hole of the female base. Then, the top base is screwed on the female base, with the aluminum plate and the sealing washer being clamped between the top base and the female base. The air storing chambers of the female base are closed while the rubber washer and the fixing piece are sealed in the oblong hole of the female base by provision of the aluminum plate and the sealing washer, and the gas valve switch structure of the gas stove achieves a gas triple safety switch by provision of the two electromagnetic valves and the control bolt.

Abstract: The invention provides a powered pumping system for filling various batch application tools with a viscous material. The system includes a motor mounted on a wheeled frame. The motor drives a slider-crank mechanism attached to a displacement pump. Affixed to the pump outlet is a relief valve having a plurality of predetermined relief pressure settings. The relief valve serves as a conduit between the pump and any one of various batch application tools while the tool is being filled with the viscous material. To initiate pumping, operators connect a filler valve of the tool to a relief valve outlet and actuate a switch. The relief valve of the present invention automatically selects a relief pressure appropriate for the particular tool based on certain physical characteristics of the particular tool. The selection of the appropriate relief pressure requires no operator intervention. Releasing the switch stops the pumping action.

Abstract: The object of the present invention is to provide a switching valve capable of increasing the opening stroke of a valve operated by a differential pressure while saving space, thereby reducing pressure loss. A first valve is disposed between an inlet port and a first outlet port. A pilot valve is provided between a back pressure chamber for a movable plug that holds a valve sheet disposed in a manner opposed to a valve seat, and the first outlet port, such that the first valve is operated by a solenoid. A second valve is arranged between the inlet port and a second outlet port. A back pressure chamber for a movable plug that holds a valve sheet disposed in a manner opposed to a valve seat and the first outlet port are communicated with each other. The second valve is opened by the differential pressure generated by closing of the first valve, and when the first valve is opened, the second valve is closed by the spring since the differential pressure is reduced to zero.

Abstract: A blood processing system comprises a processing chamber to process blood and a fluid flow cassette that communicates with the processing chamber. The cassette comprises a body, a pump chamber formed in the body, and a flexible diaphragm on the pump chamber responsive to an applied fluid pressures for flexure toward and away from the pump chamber to pump fluid through the pump chamber. The cassette also includes a flow path formed, at least in part, in the body to couple the pump chamber in fluid flow communication with the processing chamber, to convey fluid pumped by the pump chamber into the processing chamber. The cassette also includes an in line cavity formed in the body and located in the flow path to trap air to prevent entry of air into the processing chamber.

Abstract: A pressurization control device (10) for controlling positive pressurization of an electronic equipment enclosure, such as, for example, a telecommunications equipment enclosure (12 or 14), wherein the device (10) combines and integrates a number of valves or other control components and functions into a single, common valve body (28) or manifold providing a single, shared penetration point (54) into the enclosure (12 or 14), thereby advantageously minimizing the number of penetrations into and potential leakage points from the enclosure (12 or 14). The valves or other control components may be substantially conventional and may include, for example, a cable air tube connection fitting (30); a pressure cutoff valve (32); a pressure relief valve (34); and a static pressure valve or air stem (36); an express fitting (38); and an on/off valve (40).

Abstract: A cut-off valve for power steering systems, especially for automobiles, includes a source of a pressure and a container, and is used for limiting a pressure in at least one pressure chamber. The cut-off valve also includes a closing body, which may be adjusted against the force of a spring and a fixed throttling point, which is located in a connecting line between the pressure chamber that is subjected to a first pressure and a pressure chamber that is subjected to a second pressure. The cross-section of the throttling point may be regulated without being disassembled from the outside. By altering the cross-section of the throttle point, it is possible to reduce the width of the tolerance zone or the width of the hysteresis of the valve characteristics to approximately half of the original size.

Abstract: An electromagnetically controlled pressure regulating valve includes a hollow housing bounding a user channel having one end to be connected to a hydraulic medium user and another end, and respective supply and a discharge channels communicating with the interior of the housing between the ends, and at other end of the user channel, respectively. A closing member is mounted in the housing for movement toward and away from a closing position in which it sealingly separates the user channel from the discharge channel and is acted upon at the other end of the user channel by an armature with a variable combined force applied to the armature by an electrically energizable coil and by a return spring. A throttling device including at least two throttling orifices extending in fluid flow parallelism with one another between the supply and user channels and each having a length and a transverse dimension that are in a ratio of at least 2:1 is interposed between the supply and user channels.

Abstract: A mudsaver valve for use in well drilling operations includes an elongated tubular main body supporting a tubular mandrel-like mudsaver closure member therein for movement between valve open and closed positions. A coil spring is disposed in the main body member and is engageable with the mudsaver closure member to bias the mudsaver closure member in a valve closed position. The mudsaver closure member includes an axial passage formed therein and ports opening from the axial passage to the exterior of the mudsaver closure member. The mudsaver closure member is engageable with an annular resilient packoff element and is pressure biased to move to an open position wherein the ports pass through the annular packoff element to allow fluid to flow through the valve.

Abstract: An in-home stationary oxygen delivery system provides oxygen to patients by way of a standard oxygen concentration process and delivers the oxygen to a patient through industry standard ports such as the CGA-870 port. A unique fill nozzle is used to fill the ambulatory cylinders from the in-home oxygen concentration. A valve for the ambulatory cylinder provides a unique fill port for mating with the nozzle of the stationary unit while at the same time allowing the oxygen in the charged cylinder to be dispensed through a CGA-870 standard industry port. The valve utilizes check valves to prevent filling of the cylinders through the CGA-870 port.

Abstract: A fluid coupling for dispensing fluids, suitable for connecting a fitment disposed within a fluid source to a fluid receiving member. The fluid coupling includes a housing that defines a central passage between front and back openings and a first flow passage between the back and a side openings. A lever actuator is rotatably mounted on the housing to open/close the first flow passage. A poppet member is disposed within the central passage to define a second flow passage. The poppet member is actuatable between an extended configuration and a retracted configuration to close/open the second flow passage. The housing, the poppet member and the lever actuator are each one-piece integrally molded device.

Abstract: A switch valve is provided in a refrigerant circuit. The switch valve includes a first valve mechanism, a second valve mechanism, and a single valve housing incorporating the first and second valve mechanisms. The first valve mechanism is an electromagnetic valve. The first valve mechanism selectively connects and disconnects an outlet of a compressor with an inlet of a condenser in accordance with an electric current supply. The second valve mechanism is a differential pressure valve. The second valve mechanism selectively connects and disconnects the outlet of the compressor with an inlet of an evaporator in accordance with a difference between the pressure at the outlet of the compressor and the pressure at the inlet of the condenser. In this manner, the single switch valve, which includes the first and second valve mechanisms incorporated in the same valve housing, switches the refrigerant circuit between a path for a cooling operation and a path for a warming operation.

Abstract: A butterfly valve and associated controls for controlling the flow of water from a large diameter fire hose to the inlet of a fire pump is disclosed. The valve is installed between the suction tube and the suction tube extension of a midship mounted fire pump on a fire truck in a location such that the valve is positioned behind the pump operator panel. A pressure relief valve and an air bleed are mounted on the body of the valve.

Abstract: A device for purging contaminated oil from a lubrication conduit is provided. The device may be used wherever a contaminated fluid or gas is purged from a conduit circuit. The preferred embodiment includes a housing which may be finned to allow the radiating of heat from engine oil to the environment. The housing includes an inlet and a primary and secondary outlet adapted for serial installation in a conduit. The housing is further provided with primary bore and a secondary bore therethrough so as to allow communication between the inlet and the primary and secondary outlets. The primary bore includes a check valve seat with in the housing. The secondary outlet is fitted with a diverter valve seat and a diverter valve to allow a user to selectively open and close the diverter valve. The check valve allows normal oil flow during engine operation when the diverter valve is shut off but closes when a negative pressure exists at the primary outlet with respect to the secondary outlet.

Abstract: In a device (1) for actuating an overflow valve (5), in particular an overflow valve (5) incorporated in a return line (4) of a feed pump (2) and comprising a valve housing (6) and a valve body (7), the valve housing (6) of which is inserted in a fixed position in a housing (3) of the feed pump (2), with a compression spring (8) arranged between the valve housing (6) and the valve body (7) of the overflow valve (5) and a joining piece (11) attached to the valve body (7) of the overflow valve (5), with the joining piece (11) projecting from the valve housing (6) of the overflow valve (5) and having a position switch (12) assigned to the feed pump (2) held onto it via an adapter (9) which is fixed into the housing (3) of the feed pump (2), both the axial adjustment of the overflow valve (5) and the actuation of the control electronics of the feed pump (2) should be undertaken using a common housing (2); in addition, it should be possible for the procedures for assembling and dismantling the components of the de