Abstract: Briefly, the present invention comprises the improvement in a valve arrangement for controlling the flow of a fluid including a valve block having at least one substantially flat valving site on a surface thereof, the valve block defining passages communicating with the valving site through openings, a resilient diaphragm covering the valving site and forming a fluid tight seal with the valve block along the periphery of the valving site and a closure element having a substantially flat closure surface, the closure element being actuable between an open condition wherein the closure surface is retracted a preselected distance from the valving site and diaphragm, and a closed condition wherein the closure surface forces the diaphragm against the valving site; whereby the diaphragm can be urged away from the valving site by fluid pressure in the passages and the closure element is in the open condition, establishing a valve chamber above the valving site for fluid flow between the passages, and if forced agains

Abstract: An electrically controlled pressure transducer valve comprises a controlled output pressure passage, an input passage communicating with a source of pressure and with the output passage, a vent passage communicable with the output passage, and a valve for controllably varying the degree of communication through the vent passage to govern the output pressure level. The valve comprises a valve member defining opposed sides forming first and second effective pressure areas respectively exposed to output and vent pressures, the valve member being movable in response to changes in differential pressure applied to the effective pressure areas. An electromagnetic actuator exerts magnetic force on the valve member and includes a coil connected to an electrical power source for producing an electromagnetic field, a core extending within the coil and a pole piece.

Abstract: A dual vacuum control signal generator (10) is supplied by separate vacuum sources (34, 85) and employes a solenoid coil operative upon receipt of modulated pulses (148) for switching a valve member (192) between opposing vent seats (142, 196) for controlling venting to create plural vacuum output control signals supplied to connectors (16, 14) for connection through conduits (68, 78) to separate vacuum actuators (60, 70) for individually controlling the position of engine carburetor fuel metering rod (49) and idle mode throttle position cam (88).

Abstract: A lumber support system comprising an air bag disposed behind the upholstery sheet of a vehicle seat, a manual air pump and a valve assembly for controlling the supply of air from the manual air pump into the air bag as well as the discharge of the air contained in the air bag.

Abstract: An air bag control valve assembly is adapted to control the inflation of a plurality of air bags installed in a seat back rest of an automobile to fit the contour of the seated individual. The valve assembly comprises an integrally assembled body in which a pressure compartment is formed, an inlet for connecting the pressure compartment to a source of air pressure, a plurality of combined check and release valve units for connecting the pressure compartment to each of the air bags, said combined check and release valve units being attached to the interior of said body, and push-button mechanisms attached to said body to correspond to respective ones of said combined check and release valve units, the combined check and release valve units being opened by said push-button mechanisms so that air enclosed within the air bags is expelled backwardly into the pressure compartment and thence discharged into the atmosphere through gaps defined between the body and the push-button mechanisms.

Abstract: A valve assembly is provided for a paint color change system for directing paint to spray guns from either of two supply lines selectively while connecting the other line to exhaust, and simultaneously controlling the paint pressure as a function of pilot air pressure. A valve block contains two pairs of poppet valves, each pair having a common inlet chamber connected to one of the paint supply lines and containing a pair of poppets each biased toward a seat for controlling flow to an outlet chamber, and a pilot air operated diaphragm in each outlet chamber coupled with a poppet for regulating the position of the poppet in accordance with the paint pressure in the outlet chamber and pilot air pressure.

Abstract: A safety pressure reducing regulator for use in systems operable by pressurized gas incorporates multiple safety features which preclude excessive pressure buildup in the system and provide protection against catastrophic failures. The regulator includes primary and secondary regulator stages through which pressurized gas from a gas pressure source is supplied to a pressure control chamber which provides the operating pressure for the system. The primary regulator stage is designed to reduce the inlet gas pressure to an intermediate level. The secondary regulator stage is designed to automatically regulate the supply of the pressurized gas at the intermediate pressure to the pressure control chamber to maintain a desired operating pressure therein. A flexible diaphragm is normally disposed across the pressure control chamber which is adapted to function as a check valve to control communication between the secondary regulator stage and the pressure control chamber.

Abstract: A two-way flow valve includes a valve body having a cavity and a stem longitudinally moveable therein which establishes two separate fluid flow paths through the cavity in the body from first and second inlet ports to a common outlet port. A spring biases the stem to a first position in which fluid flow is allowed along a first one of the paths and obstructed along the other. When a closure is applied to the valve, the stem is moved against the spring bias to a second position in which fluid flow is allowed along a second one of the paths and obstructed along the first path.

Abstract: A control unit for a hydraulic actuated elevator consists of a valve device in the hydraulic circuit wherein the circuit includes a pump, a hydraulic cylinder and its piston for raising and lowering an elevator cab and a reservoir for the hydraulic fluid. The valve device features a rotary disc serving as a valve element slidable to positions which open and close ports leading respectively to the reservoir and the cylinder. A reversible electric motor in a cab demand circuit has a rotary drive to the rotary disc, as, for example, by a pinion and gear, for rotating the rotary disc in response to the cab demand circuit serving to start and stop the motor. In one position of the rotary disc, with both ports closed, hydraulic fluid is passed directly into the cylinder for up travel of the cab. In an intermediate position with the port to the cylinder closed the fluid is locked in the cylinder in stop position of the cab.

Abstract: The regulator is designed to control the flow of a pressurized fluid between a source of said fluid which feeds it at a feed pressure, and a user device in which the fluid is at a utilization pressure which depends on the operating conditions of the device; the regulator also comprises a valve element mobile in the direction of its axis and arranged to vary the degree of closure of an orifice between a feed chamber and a utilization chamber, and a first and second cavity in which there is housed a first and second active surface respectively, on one of which there acts the utilization pressure and on the other of which there acts a control pressure arranged to control the movement of the valve element.

Abstract: A dual solenoid pneumatic pressure control valve having two oppositely acting solenoids, each solenoid containing a valve means responsive to solenoid activation signals for controllably opening one of a plurality of pressure communication conduits disposed within the body of the valve to enable modulated pressure communication between a plurality of reference pressure sources and an output port to control a pneumatic pressure responsive actuator.

Abstract: A no-drip valve apparatus for regulating a fluid flow from an inlet to an outlet. A pressure activated supply valve means controls the flow of fluid through the valve. A partition member cooperates with a vacuum chamber to retract and retain any remaining oil in the valve or the oulet nozzle when the pressure activated supply valve means cuts off the flow of oil through the valve. The partition member is resiliently displaced by pressure fluid from a supply chamber adjacent the inlet and is displaced in one direction prior to flow of fluid to the outlet and is displaced in the other direction upon termination of the flow of fluid through the outlet.

Abstract: A valve structure is provided for use in an integral hydraulic pump and valve assembly having a housing adapted to be integral with a pump housing with spaced apart low pressure and high pressure ports corresponding to the low pressure inlet port and high pressure outlet port of said pump, a low pressure chamber, a high pressure chamber and a cylinder chamber in said housing spaced apart and generally parallel to one another, a transverse bore in said housing intersecting said chambers, valve means movable axially in said bore, said valve means having an annular groove intermediate its ends capable of connecting said low pressure and high pressure chambers in a first neutral position, capable of connecting all of said chambers in a second position and connecting only the low pressure chamber in a third position, detent means in said housings extending into said bore and annular groove in the valve member, detent engaging means in said groove intermediate its ends and stroke limiting means extending into the b

Abstract: A torch having oxygen and fuel gas passages from the torch butt to the torch tip, and valving apparatus for controlling the flow of oxygen and fuel gas from fuel and oxygen adapters on the torch butt to said passages, the valving apparatus including a valve seat, a valve stem, a first ball retained in a valve stem bore for rotation relative to the valve stem and abuttable against the valve seat to block fluid flow therethrough while the valve stem is spaced from the valve seat and a second ball rotatably mounted in a valve stem bore to abut against the first ball axially opposite the valve seat, and lubricant for being transferred from the second ball to the first ball as the valve stem rotates relative the first ball and the first ball rotates relative to the second ball, the first ball being of a substantially larger diameter than the second ball.

Abstract: An energy saving vent is provided for selectively directing hot, moist exhaust air from a clothes dryer either through a downstream vent sleeve to the outdoors, or through a vent port to the indoors. The vent includes four major components principally molded from a synthetic plastic resin, the components being: an open sided housing; a closure panel for closing one open side of the housing; a valve member within the housing for selectively directing air through the housing in alternate paths; and a filter screen assembly for another open side of the housing. The selectively swingable valve carries a pressure relief means adapted to provide for passage therepast of pressurized exhaust gas when the valve is in its position to direct air flow indoors, and in the event that the flow of air indoors is blocked by the filter screen being clogged. The preferred filter screen is a truncated, basket-like, member that is carried on a frame which is removably carried in a slide channel defined on the housing.

Abstract: A pump control valve and relief valve assembly are provided in the form of a valve housing having a main bore therethrough, a spool movable in said bore and having a pair of spaced annular grooves therein, a spaced relief bore in said housing, a pump chamber and a work chamber in said housing intersecting both bores, a pair of tank chambers, one on each opposite side of the pump and work chambers intersecting said main bore, said tank chamber adjacent the work chamber intersecting the relief bore, a tank bore connecting said tank chambers, an inlet return bore intersecting said tank chamber adjacent the work chamber, an inlet port connected to said relief bore and jump chamber and adapted to connect to a pump outlet port, a tank port connected to said tank bore, a pump inlet port and a return port connected to said inlet return bore, said pump inlet port adapted to connect to a pump inlet port and the return port adapted to be connected to a source of return fluid, and a combination check and relief valve ass

Abstract: A solenoid valve assembly having two bobbins including the solenoids which are co-axially supported by a housing first and second valve bodies slidably supported in each axial bore of the two bobbins and movable independently with respect to energized conditions of the solenoids, an outlet port formed in the housing to receive control pressure from two different pressure sources applied to two inlet ports formed in the housing, a first, second, third and fourth valve core positioned within the housing, a single sleeve of non-magnetic material secured to the valve cores such that the valve cores are positioned within axial bores of the bobbins, passageways for communicating with the outlet and two inlet ports formed in the sleeve and valve cores, the first valve body being of a magnetic material which is axially movable and supported in the sleeve between the first valve core and the second valve core, the second valve body including magnetic material axially movable and supported in the sleeve between the thi

Abstract: Disclosed is a liquid inertia tool in which the kinetic energy of flowing liquid is converted to useful work by decelerating the liquid flow and directing the inertia force in the water against a movable element in the liquid flow-containing structure which in turn moves against a work piece. Flow deceleration is achieved by an orifice-effect valve. The valve is reset for flow resumption or acceleration by automatically or selectively applying hydraulic pressure to a reset mechanism. Use of the inertia tool in pile driving and punch press applications is disclosed.

Abstract: A thermostat for a pneumatic control system controls output pressures to a plurality of elements to be controlled. The thermostat can control output pressure directly or inversely and linearly or nonlinearly with respect to temperature. Additionally, the pressures can be controlled sequentially or simultaneously.

Abstract: The disclosure is directed to a diverter coupling, for use in connection with a water-powered appliance, for coupling the appliance to a water outlet, typically a standard household faucet. The diverter coupling is constructed predominantly of molded plastic parts, to accommodate low cost manufacture, and includes detachable sections mounted respectively on the faucet outlet and on the end of the inlet tubing to the appliance. When the two parts are coupled together, water flow from the faucet is diverted into the appliance inlet, flows through the appliance, and is returned and discharged at the sink. Pressure regulating means prevents overloading of the appliance by excessive water pressure.

Abstract: A control unit having a plurality of pneumatically operated valve constructions for controlling the fluid flow from a first fluid source in relation to the condition of a second fluid source that is adapted to be inter-connected to the pneumatically operated valve constructions, the control unit having a self-contained housing structure carrying the valve constructions therein in substantially a circular array and having a centrally arranged inlet substantially concentric to the circular array and being adapted to be interconnected to the first fluid source.

Abstract: The fluid flow switching apparatus includes a housing defining a chamber, a bore in communication with the chamber, fluid inlet and outlet ports respectively in communication with the chamber and bore, and a valve body movable within the chamber and carrying a sealing means for sealing about the bore. The valve body carries a pin which projects laterally into a cam track formed in the housing and which serves to releasably lock the valve body in a position enabling flow between the inlet and outlet ports through the chamber and bore and in a valve closed position preventing flow between the inlet and outlet ports. The valve body is movable manually between the valve open and closed positions by consecutive depressions of a push key connected to the valve body.

Abstract: A dual solenoid pneumatic pressure control valve having two oppositely acting solenoids, each solenoid containing a valve means responsive to solenoid activation signals for controllably opening one of a plurality of pressure communication conduits disposed within the body of the valve to enable modulated pressure communication between a plurality of reference pressure sources and an output port to control a pneumatic pressure responsive actuator.

Abstract: A drilling rig comprising a plurality of pipes connected in a row, with a drill at the lower end; the rotation transmitting bar or Kelly bar at the top end of the drilling rig must be periodically disconnected so as to install a new pipe section; the invention comprises a valve to seal the upper rotating or Kelly bar when it is disconnected so as to keep the sludge pump primed; the valve comprising a collapsible diaphragm which is forced shut by pressurized fluid to seal the rotating or Kelly bar; and an air escape valve communicating into the row of pipes beneath the sealing valve for effecting removal of air trapped beneath the rotating or Kelly bar valve.

Abstract: A solenoid valve comprising a housing having opposed inlet and outlet ports which communicate via a passage containing a poppet member movable in response to energization of a coil is disclosed. A flexible wall is further provided in said passage to define inlet and outlet chambers communicating respectively with said inlet and outlet ports. A second passage in said flexible wall connects said chambers, and a resilient spring urges a valve seat defined in said second passage into fluid tight engagement with the poppet member, whatever the position of the latter. The poppet member is movable between a first position in which it urges the wall against an abutment, thereby preventing any communication between the inlet and outlet ports, and a second position in which the wall is movable relative thereto, whereby said wall acts as a non-return valve between the inlet and outlet ports.

Abstract: A control unit having a plurality of pneumatically operated valve constructions for controlling the fluid flow from a first fluid source in relation to the condition of a second fluid source that is adapted to be interconnected to the pneumatically operated valve constructions, the control unit having a self-contained housing structure carrying the valve constructions therein in substantially a circular array and having a centrally arranged inlet substantially concentric to the circular array and being adapted to be interconnected to the first fluid source.

Abstract: A hydraulic gun includes a gun body within which a trigger operated valve and a second, pressure operated valve are supplied with water under pressure from a pump. The trigger operated valve is normally open and returns water at a comparatively low pressure to a water reservoir, but when the trigger operated valve is closed, the water pressure opens the second valve, through which water is delivered to a nozzle.

Abstract: A device for filling pneumatic tires. The device includes a container for gas under pressure and upon which a dispensing head is mounted. The head has a passage leading from the interior of the container and there is a tire valve in the passage movable to opened and closed positions. An orifice in the passage inwardly of the valve has a flow capacity less than the valve to determine the maximum flow rate of gas from the container. The dispensing head has a sealed and threaded connection to the container and there is a relief port connecting the passage at a point between the valve and orifice with the threaded connection inwardly of the sealed connection and effective to bleed gas from the container to atmosphere when the dispensing head is unthreaded from the container far enough to break the sealed connection but before the threads are completely disengaged.

Abstract: A composite valve made of a first dish-like member having an open face and concaved portions defining diaphragm chambers, a second dish-like member having an open face and concaved portions defining complex passages, an intermediate member having opposite open faces opposing the open faces of the first and second dish-like members and complex partitions defining bearing portions and complex passages, a diaphragm element interposed between the first dish-like member and the intermediate member, valve elements slidably mounted in the bearing portion and connected to the diaphragm element, and valve seat elements interposed between the second dish-like element and the intermediate member and providing valve seats.

Abstract: In a non-drip valve for a fluid-flow line having a supply chamber, a discharge chamber and a vacuum chamber connected to the discharge chamber to withdraw fluid therefrom when the forward flow is arrested, pressure-responsive valve means controlling the forward flow from the supply chamber to the discharge chamber, and relief valve means to permit reverse flow bypassing said pressure-responsive valve when it is closed. Preferably a selectively-operable valve is provided to put said pressure-responsive valve in working condition.

Abstract: A vehicle with operationally conditioned vacuum loads and comfort vacuum loads, in which a central distributor box is provided that is equipped with a feed connection to connect a distributor chamber with a vacuum source; at least two load chambers are also provided in the distributor box, whereby each load chamber is connected with the distributor chamber by way of a protective valve opening in the direction to the distributor chamber against a spring force, and with a load connection which is in communication with a test connection that opens into the atmosphere after overcoming a spring-loaded valve.

Abstract: A manifold assembly for a compressed air storage tank or the like having a main flow passage therethrough, ball valve means and pressure relief means. The ball valve means comprises a ball valve member received in a lateral bore extending generally perpendicularly through the passage. The ball valve member has a spherical ball portion with an aperture therethrough and a pair of circular sealing heads, one on each side of the ball portion. Each of the sealing heads carries a seal which is slidably and sealingly engageable with the walls of the lateral bore. The sealing heads are of substantially equal diameter so that pressure forces acting on the ball valve member which tend to move the latter axially within the bore are balanced. A seal body is insertable into a main flow passage of the valve body from one end thereof for sealingly engaging the ball portion after the ball valve member has been installed in the lateral bore.

Abstract: A load check and bypass valve includes a check valve providing fluid flow from an inlet-outlet port to a motor port while blocking reverse flow therethrough and a bypass valve resiliently biased to a closed position for blocking fluid flow through a bypass connecting the motor port with the inlet-outlet port. The bypass valve has an opened position permitting fluid flow therethrough and is movable to its opened position by a selectively controllable actuating device. A first force exerting device is provided for exerting a force on the bypass valve urging it towards its opened position and is connected to the motor port by a first passage. A second force exerting device is provided for exerting a force on the bypass valve urging it towards its closed position and is connected to the motor port through a second passage. A check valve is disposed in the second passage providing fluid flow therethrough from the motor port to the second force exerting device while blocking reverse fluid flow therethrough.

Abstract: A compact valve block for an IS glass forming machine in which a plurality of vertically positioned poppet valves which are in two rows and in staggered array, are controlled by solenoid operated pilot valves of equal number to the poppet valves. An air manifold communicates with all of the poppet valves and the air is selectively delivered to the "kiss block" of an IS machine to provide the functional operation of various mechanisms on the machine. The deenergization of the solenoid operated pilot valve associated with any of the poppet valves permits the poppet valve to return under spring pressure to connect its output passage to an exhaust passage. All the exhaust passages on all of the poppet valves enter a common header which in turn communicates with an exhaust chamber, thus muffling the sound of air normally associated with the exhaust of the pneumatic motors of an IS machine.

Abstract: Apparatus for metering the quantity of air supplied to at least one fuel system in a carburetor for an internal combustion engine. The carburetor has at least one air passageway therein through which air is drawn into the engine. Fuel is supplied to the carburetor through the fuel system and mixed with air as it passes through the carburetor and the carburetor has a conduit through which air is introduced into the fuel system. The apparatus comprises a chamber having an air inlet in communication with the air passageway of the carburetor and a plurality of air outlets in communication with the conduit. An electrically operated valve selectively opens and closes each air outlet and electrical current is selectively supplied to each valve whereby one or more of the air outlets may be opened thereby to supply air from the passageway to the conduit and to control the quantity of air flowing to the fuel system.

Abstract: A main body is provided having a fluid passage extending therethrough including inlet and outlet ends. The body further defines a branch passage having an outlet end portion opening outwardly of the body and an inlet end portion opening into an intermediate portion of the main fluid passage. The intermediate portion of the main fluid passage includes structure defining a valve seat therein and a valve body is mounted in the inlet end portion of the branch passage for adjustable positioning therealong and includes a main valve portion opposing the seat and operable to variably throttle the main flow passage upon shifting of the main valve portion toward and away from the seat. The valve body includes a flow passage formed therein having an inlet end opening through the main valve portion and communicating with the main fluid passage intermediate portion and an outlet end communicating with the outlet end portion of the branch passage.