Abstract: Regulators for regulating gas that is delivered in discrete charges from a tank that contains compressed gas to a paintball gun, marker, or other application that utilizes or is activated by pressure controlled discrete charges of gas. The regulator has holding, discharge, and fill configurations, controlled by the movement of a piston member in a pressurized chamber, and the activation of a poppet valve on the discharge of the system. One or two low side pressure relief members are provided to prevent the over-pressurization of the pressurized chamber. An externally threaded sleeve member is non-rotatably, but axially slidably received on a distal portion of the body of the regulator so that the sleeve member and distal portion may be axially slidably disengaged, and the regulator can be rotationally positioned so that the pressure gauge is easily viewed by an operator.

Abstract: A compressed gas regulator of a piston type is disclosed in which a regulator is configured with an input valve situated entirely inside a compressed air canister, which regulator is then attached to a paintball gun, marker or other device for providing discrete charges of gas at a predetermined pressure to the attached device. The overall size and weight of the regulator are minimized, which allows increased capabilities to the user. A regulator overpressurization port vents behind a conventional safety gauge for safety purposes. Fill, gage, and canister overpressurization rupture ports are interconnected with a fill channel that extends from the canister to the ports without intersecting or interfering with the regulating components within the regulator. The input valve seat face is surrounded by a shallow generally conical surface within an input plenum. The shallow generally conical surface extends at approximately 5 to 15 degrees.

Abstract: Pressure regulator with partial volumes for regulating the operating pressure of fluids, in particular adhesives, at the inlet of a consuming device, the first partial volume (14) being connectable to a fluid source and the second partial volume (24) being connectable to the fluid inlet of the consuming device, wherein the second partial volume (24) has a cylindrical section(24a) of variable size, a connecting channel (22) connecting the first (14) and the second (24) partial volumes, a valve disposed in the first partial volume for opening and closing the connecting channel, said valve having an insert (23) and a movable sealing piston (32), the front end of which forms a sealing body (34) for closing the connecting channel and the rear end of which is sealed against the first partial volume.

Abstract: A manifolded fail-safe hydraulic control system provides fail-safe operation of a pipeline valve using no more than a total of 45 proprietary parts in the system. The system controls the operation of a spring return actuator, which in turn strokes the pipeline valve from the normal operating position to the fail-safe position, or from the fail-safe position to the normal operating position. The system enables the valve to automatically stroke to its fail-safe position without external power.

Abstract: A pressure-regulating valve with an integrated pressure gauge has a body, an inlet nipple, a pressure-control device and a knob assembly. The body is tubular and has an inlet opening, an outlet and an adjustment end. The inlet nipple is connected to the inlet opening of the body and connects to a compressor. The outlet is a tube formed on the body and connects to a pneumatic tool or the like. The pressure-control device is movably placed inside the body and controls pressure of a gas flowing from the compressor to the outlet of the body. The knob assembly is rotatably mounted on the adjustment end of the body, is connected to the pressure-control device and displays and controls the pressure of the gas flowing from the compressor.

Abstract: A device includes a pressure regulator comprising a body including a control chamber adapted to connect to a portable pressure vessel filled with compressed CO2 via an inlet coupling, the control chamber having a threaded stepped diameter passageway, a relief valve, and a pressure gauge, a valve, a cap including a hand wheel, and a pressure adjustment assembly including a resilient sealing disk, a disc, a thumbtack member, a fastener for securing the thumbtack member and the sealing disk together, and a spring biased between the sealing disk and the disc; a housing for partially enclosing the pressure regulator with the hand wheel, the pressure gauge, and an outlet coupling being exposed; and a hanging member pivotably secured onto the housing.

Abstract: A valve module includes a valve housing (2) providing a chamber accommodating at least part of a valve member (3). The chamber forms part of a high pressure side of the valve. A valve port leads from the valve chamber to a low pressure side of the valve and the valve member co-operates with a valve seat around the valve port. The valve member is displaceable inwardly away from the valve seat to open the valve against a biasing spring biasing the valve member towards its closed position. The valve housing has on its low pressure side a shroud or wall (200) extending transversely with respect to the valve axis and spaced from the valve so as to deflect any gas exiting from the valve port in the direction parallel with the valve axis. The valve housing defines with the shroud or transverse wall (200) one or more transverse passages (113) leading to openings at the sides of the valve housing for the passage of gas issuing from the valve port.

Abstract: A pressure regulator is disclosed wherein multiple valve stages are used to accommodate low flow rates and to maximize a turn-down ratio of the regulator.

Abstract: A main valve reduces an unregulated pressure of a high-pressure gas to a regulated pressure by being interlocked with a diaphragm, which receives the regulated pressure within a pressure regulating chamber and is displaced. A subsidiary valve is interlocked with the main valve through a plunger and reduces the unregulated pressure of the high-pressure gas to the regulated pressure. The subsidiary valve is located such that the force, which accompanies a pressure loss occurring at the subsidiary valve and which the subsidiary valve receives, cancels the force, which accompanies the pressure loss occurring at the main valve and acts upon the plunger. An adjustor adjusts a pressure loss value occurring at the subsidiary valve so as to be equal to the pressure loss value occurring at the main valve.

Abstract: A compressed gas regulator of a piston type is disclosed in which a regulator is configured with an input valve situated entirely inside a compressed air canister, which regulator is then attached to a paintball gun, marker or other device for providing discrete charges of gas at a predetermined pressure to the attached device. The overall size and weight of the regulator are minimized, which allows increased capabilities to the user. A regulator overpressurization port vents behind a conventional safety gauge for safety purposes. Fill, gage, and canister overpressurization rupture ports are interconnected with a fill channel that extends from the canister to the ports without intersecting or interfering with the regulating components within the regulator. The input valve seat face is surrounded by a shallow generally conical surface within an input plenum. The shallow generally conical surface extends at approximately 5 to 15 degrees.

Abstract: A regulator comprises a body including an inflow line, an outflow line, and a buffer space, the buffer space being provided between the inflow line and the outflow line, and a switch for opening and closing a flow path of a fluid flowing from the inflow line to the buffer space. The switch comprises a seat member including an inlet for receiving the fluid from the inflow line, and an outlet for supplying the fluid received through the inlet to the buffer space, the seat member being disposed in the flow path and a movable cutoff member for opening and closing the inlet, the cutoff member being inserted into the seat member, wherein the outlet is configured for allowing the fluid to flow in one direction along an outer sidewall of the seat member.

Abstract: A pressure regulator is provided in which a valve (19) is coupled to a body (14), and is used to regulate gas pressure in a regulated pressure chamber (34). Valve (19) includes a movable sealing member (22) that is relatively soft. The movable sealing member (22) seals against a passageway (26) formed in a capsule body (20). The capsule body (20) is made of a material that is harder than the sealing member (22).

Abstract: A pressure regulator that has particular application for an anode input side of a fuel cell system to provide the desired large turn-down ratio. The pressure regulator includes at least two valves positioned in parallel where the first valve is smaller than the second valve. The first valve is opened and closed and the second valve is maintained closed at low flow rates. Once the flow rate is high enough, the first valve is maintained completely open, and the second valve is opened and closed to control the flow at high flow rates.

Abstract: A valve member (1) for a balanced pressure reducer, said valve member (1) having a wide head (1?) designed to co-operate with a valve seat (6), said valve member (1) having a central body (2) made of a material that is hard and that withstands high pressures, said central body (2) being covered at least in part with a first layer (3) of a rigid plastics material, said first layer (3) of a rigid plastics material being covered at least in part with a second layer (5) of a less rigid plastics material, no contact between the less rigid second layer (5) and the central body (2) occurring in that zone of said valve member (1) which is subjected to the high pressures.

Abstract: This pressure regulator is specifically designed to operate with a portable compressed gas cartridge thus reducing the high vapor pressure found in compressed gas cartridges down to a substantially consistent outlet pressure. Due to the nature of the crowded regulator art, the soon to be embodied pressure regulator has been specifically embodied for use in the portable compressed gas cartridge harnessing art and this specific use is carried into the claims. Exemplified in the pressure regulator embodiments is a reduced amount of components over existing designs. Additionally, safety and reliability features have been integrated into the design and will shortly be taught in the following paragraphs. A burp-off feature in all embodiments will be exemplified that vents back-pressure spikes as well as a method of adjusting the burp-off back-pressure spikes independent of regulated pressure in some embodiments.

Abstract: A two stage pressure regulating device is disclosed. The device is adapted to supply compressed air from a portable container having a pressure of about 150 kg/cm2 to a pneumatic tool by first greatly reducing pressure of compressed air in the container to about 13 kg/cm2 through a pressure-reducing unit and then precisely adjusting same in a low pressure range of about 1-10 kg/cm2 through a fine pressure adjustment unit which is in fluid communication with the pneumatic tool, whereby a user is able to continuously safely operate the pneumatic tool.

Abstract: A main valve reduces an unregulated pressure of a high-pressure gas to a regulated pressure by being interlocked with a diaphragm, which receives the regulated pressure within a pressure regulating chamber and is displaced. A subsidiary valve is interlocked with the main valve through a plunger and reduces the unregulated pressure of the high-pressure gas to the regulated pressure. The subsidiary valve is located such that the force, which accompanies a pressure loss occurring at the subsidiary valve and which the subsidiary valve receives, cancels the force, which accompanies the pressure loss occurring at the main valve and acts upon the plunger. An adjustor adjusts a pressure loss value occurring at the subsidiary valve so as to be equal to the pressure loss value occurring at the main valve.

Abstract: The present invention is a poppet comprising a stem and a body, with the body having a plurality of channels extending in an longitudinal direction along the periphery of the body. The channels are gas flow conduits that react to the orientation of the poppet and force the poppet to re-align itself during operation with the centerline of the regulator chamber surrounding the poppet. The plurality of channels greatly reduces the contact between the periphery of the poppet and the regulator body. The present invention further includes a bore beginning at the non-stem end of the body and extending in the longitudinal direction within the body of the poppet. The bore can receive a spring for guiding the poppet. By positioning the spring within the poppet, the spring will have minimal contact with the regulator body. The bore avoids the spring from guiding the poppet by its end and adjusts the poppet's center of gravity toward where the poppet sits on the seat.

Abstract: The safety valve comprises a body and an obturator movable in the body between a closed position (FIG. 2) and an open position (FIG. 3). It also comprises means for displacing the obturator in order to displace it towards its closed position when the pressure of the fluid is lower than a threshold value, and the displacement means comprise: a piston for driving the obturator towards its open position, the piston being in contact with the pressurised fluid when the obturator is in the open position, and means for returning the obturator towards its closed position. Application, for example, to pneumatic machining machines.

Abstract: An improved pressure regulator suitable for use with paint ball guns comprises a hollow valve body, a valve mechanism for selectively releasing gas from a gas source to an output, and an ON-OFF control. The valve body has a coupling portion, a regulator seat, an output port, an inlet opening, and sidewalls defining a transverse spool socket. The valve mechanism includes a regulator seat, a valve plug movable within a plug chamber for sealing engagement with a regulator seat, and a fluid barrier axially movable with respect to the valve body. A spool is received in the socket and movable between a first position wherein an internal passage is defined between the gas inlet opening and the regulator seat, and a second position wherein the flow of gas from the gas inlet is blocked.

Abstract: A valve for fitting to a container, in particular a bottle, in which a pressure has accrued, comprising a valve housing in which at least one valve seat is provided. A valve seat, independent of the bottle pressure is located between a piston and the bottle contents and connected to the piston, whereby the other side of the piston is pressurized by an energy store, the force of which is adjustable.

Abstract: A main valve reduces an unregulated pressure of a high-pressure gas to a regulated pressure by being interlocked with a diaphragm, which receives the regulated pressure within a pressure regulating chamber and is displaced. A subsidiary valve is interlocked with the main valve through a plunger and reduces the unregulated pressure of the high-pressure gas to the regulated pressure. The subsidiary valve is located such that the force, which accompanies a pressure loss occurring at the subsidiary valve and which the subsidiary valve receives, cancels the force, which accompanies the pressure loss occurring at the main valve and acts upon the plunger. An adjustor adjusts a pressure loss value occurring at the subsidiary valve so as to be equal to the pressure loss value occurring at the main valve.

Abstract: A first retainer and a second retainer are provided between a diaphragm and an upper housing. A first spring urges the diaphragm downward between the first retainer and the diaphragm. A second spring having an outer diameter smaller than that of the first spring urges the diaphragm downward between the first retainer and the second retainer.

Abstract: An improved pressure regulator suitable for use with paint ball guns comprises a hollow valve body, a valve mechanism for selectively releasing gas from a gas source to an output, and an ON-OFF control. The valve body has a coupling portion, a regulator seat, an output port, an inlet opening, and sidewalls defining a transverse spool socket. The valve mechanism includes a regulator seat, a valve plug movable within a plug chamber for sealing engagement with a regulator seat, and a fluid barrier axially movable with respect to the valve body. A spool is received in the socket and movable between a first position wherein an internal passage is defined between the gas inlet opening and the regulator seat, and a second position wherein the flow of gas from the gas inlet is blocked.

Abstract: A pressure regulating system having a tamper-proof safety feature. A pair of seats are mounted to an annular pipe. A first bleed pipe, with a fixed restriction, extends from an inlet conduit to a first chamber. The first chamber is separated from a second chamber by a second diaphragm. A second bleed pipe extends from the second chamber to an outlet pipe. A bleed off mechanism is sealed within the outlet conduit and includes a compressible bellows. When compressed, which occurs when a predetermined pressure level is attained in the outlet conduit, a third seat is moved out of sealing relation with the outlet conduit and the first chamber. This creates an imbalance of the pressures in the chambers that leads to the pair of seats being moved to seal off apertures in the inlet conduit, thereby inhibiting flow into the outlet conduit.

Abstract: The flow-adjusting device comprises: a housing (2) having an inlet channel (4) and an outlet channel (5) to be connected with respective pipes (6) through which a liquid is caused to flow, a closure assembly (7) arranged in the housing (2) between the inlet and outlet channels (4, 5) for drivingly adjusting the flow of the liquid, and a deformable diaphragm (3), deformation of which takes place in proportion to the liquid pressure in the outlet channel (5) and which is active on the closure assembly (7). The device also comprises a hollow body (15) internally bounding a storage chamber (16) disposed between the inlet and the outlet channels (4, 5), the storage chamber (16) having a lower portion (16a) to be engaged by the liquid and an upper portion (16b) defining an air-tight region wherein air under pressure is stored under the effect of increasing pressure of the liquid and causes recirculation of the liquid on decreasing of the liquid pressure.

Abstract: A tool and method of utilizing the tool to release pressurized gas trapped between a main valve and a safety valve of a portable liquified petroleum gas tank is disclosed. The tool includes a tank safety valve release member structured to be coupled with the outlet of the fuel tank. The tank safety valve release member is configured to be inserted into the tank outlet and move the tank safety valve to an open position so that pressurized gas can escape to atmosphere.

Abstract: An air pressure and flow regulating valve for pneumatic tool mainly includes a valve body, a pressure regulator and a flow regulator connected to one side and a top, respectively, of the valve body, and an air inlet connector provided at a bottom of the valve body. By rotating a first turning knob provided on the pressure regulator, a narrow passage is produced in the valve body between the air inlet connector and the flow regulator, so that a pressure of air supplied into the pneumatic tool via the flow regulator is controllable via the size of the narrow passage. By rotating a second turning knob mounted around the flow regulator to fully open, partially shield, or fully close an outer air passage hole provided on the flow regulator, speed and flow of air supplied into the pneumatic tool can be changed under control.

Abstract: A reducing valve for compressed gas bottles comprises a valve mechanism for compressed gas bottles which is disposed between a high pressure connection and a low pressure output, whereby an opening which is defined by a sealing edge is sealed by a valve cone which is impinged upon by a closing force and which is preferably provided with a seal; and wherein means are provided in order to compensate the pressure imposed upon the valve cone in the region of the opening, comprising a compensation piston which is impinged upon by a pressure of the same strength in the opposite direction. The inventive reducing valve has a simplified structure and assembly, in addition to providing a high degree of functional reliability by virtue of the fact that the compensation piston is embodied as a piston which can move relative to the valve cone.

Abstract: A method and a regulating valve for maintaining a fluid pressure within a defined volume (3), and simultaneous registering of discharge of fluid from the volume as a result of leakage or consumption. The fluid is supplied from a pressure regulating valve (20) provided with a means (5-7, 22-26) which opens for the supply of fluid to the volume (3) when the pressure therein has sunk below a first value (P1), and which shuts off the fluid supply when the pressure in the volume (3) has achieved a preset second value (P2) which is substantially higher than the first value (P1). Thus, after each opening of the regulating valve (20) there occurs a distinct pressure increase at the valve outlet. This pressure increase is registered as a pressure pulse, and the frequency of delivered pressure pulses is monitored and utilised as a measure of occurring leakage and/or consumption of the supplied fluid.

Abstract: A metal diaphragm structure for pressure regulators for increasing flow capacity, flow control, and pressure rating. The structure includes a specially shaped metal diaphragm installed and clamped on its periphery into the outlet cavity of a pressure regulator body. The diaphragm is a circular thin metal disc dome shaped with specifically controlled height and thickness values.

Abstract: A bias spring structure for pressure regulators for increasing flow capacity. The inventive device includes a specially shaped metal disc. The bias spring is a circular, thin, conically shaped, metal disc, with a center through hole, and having specifically controlled height and thickness values.

Abstract: An improved ON-OFF control for a paintball gun comprises sidewalls defining a transverse actuator socket, a gas inlet for fluid communication to a pressurized gas source and a gas outlet, and a spool received in the socket and movable between a first position wherein an internal passage is defined between the gas inlet opening and the gas outlet opening, and a second position wherein the flow of gas from the gas inlet is blocked and the gas outlet is vented to atmosphere.

Abstract: A pressure regulator having a disc spring. The pressure regulator comprises a valve having a movable device that is positioned to control fluid flow through the pressure regulator. Downstream fluid pressure produces a first force acting on the movable device to close the valve to block fluid flow through the pressure regulator. The disc spring produces a second force that acts on the movable device to open the valve to enable fluid to flow through the pressure regulator.

Abstract: A flow control includes a support having a passage and a seal surface, a deformable seal that is engageable with the seal surface, and a bias member for exerting a variable bias against the deformable seal. The seal surface includes channels formed in its surface that extend beneath the deformable seal. The bias member can exert a bias sufficient to cause the deformable seal to fill the channels, preventing fluid flow through the channels. When the bias member decreases the bias against the deformable seal, the deformable seal gradually moves out of the channels, allowing fluid flow through the channels, and through the passage in the flow control. The deformable seal does not need to separate from the seal surface to allow fluid flow. Instead, fluid flows through the small, controlled flow areas created when the deformable seal withdraws from the channels.

Abstract: A secondary stage regulator is disclosed wherein a piston-type configuration is utilized to regulate an input working pressure as high as 1,200 PSI, to an output delivery pressure from 50 PSI to 900 PSI. The secondary stage regulator can be used on paintball guns, markers and similar devices powered by compressed gas.

Abstract: The flow-adjusting device comprises: a housing (2) having an inlet channel (4) and an outlet channel (5) to be connected with respective pipes (6) through which a liquid is caused to flow, a closure assembly (7) arranged in the housing (2) between the inlet and outlet channels (4, 5) for drivingly adjusting the flow of the liquid, and a deformable diaphragm (3), deformation of which takes place in proportion to the liquid pressure in the outlet channel (5) and which is active on the closure assembly (7). The device also comprises a hollow body (15) internally bounding a storage chamber (16) disposed between the inlet and the outlet channels (4, 5), the storage chamber (16) having a lower portion (16a) to be engaged by the liquid and an upper portion (16b) defining an air-tight region wherein air under pressure is stored under the effect of increasing pressure of the liquid and causes recirculation of the liquid on decreasing of the liquid pressure.

Abstract: A bias spring structure for pressure regulators for increasing flow capacity. The inventive device includes a specially shaped metal disc. The bias spring is a circular, thin, conically shaped, metal disc, with a center through hole, and having specifically controlled height and thickness values.

Abstract: A pressure reducing valve assembly (10) for receiving fluid from a high pressure line and delivering the fluid to a low pressure line includes an elongated tubular body (12), a pressure reducing valve (14) having a single, valved opening (54) interposed between high and low pressure ports (68),(70), and a pressure reducing reservoir (16) defined substantially between the body (12) and the pressure reducing valve (14). The pressure reducing reservoir (16) comprises the only substantial fluid communication between the body (12) and the pressure reducing valve (14) and fluidly communicates with the high pressure port (68) by the single, valved opening (54). In preferred forms, the pressure reducing valve (14) includes a valve insert (64) housing a spring (62) that, among other functions, serves as a reset valve to further reduce the space requirements and decreasing the cost and complexity of the valve assembly (10).

Abstract: Safety device (20) for a high-pressure fluid regulator for preventing risk of combustion caused by high velocity particles entering the regulator includes an inlet body (24) having a passage in fluid communication to receive the fluid prior to supply to the regulator, to which the device is connected. A filter (60) within the inlet body filters fluid passing through the passage. A fluid disrupter (62) is disposed between the filter and the regulator so that high velocity particles are kept by the filter and disrupter from entering the regulator.

Abstract: A metal diaphragm structure for pressure regulators for increasing flow capacity, flow control, and pressure rating. The structure includes a specially shaped metal diaphragm installed and clamped on its periphery into the outlet cavity of a pressure regulator body. The diaphragm is a circular thin metal disc dome shaped with specifically controlled height and thickness values.

Abstract: A pressure regulator having a movable seat and a seat retainer. The seat retainer having a hollow interior with an interior surface. The seat is disposed within the hollow interior of the seat retainer to control fluid flow through the pressure regulator. The seat may be adapted to slidingly engage the interior surface of the seat retainer during movement of the seat to dampen the movement of the seat. The seat may be elastically deformed by the seating surface when seated against the seating surface. The pressure regulator may have a stem extending through the seat retainer orifice and affixed to the solid body of the seat to move the seat in response to movement of a diaphragm.

Abstract: A pressure regulator having a movable seat and a seat retainer. The seat retainer having a hollow interior with an interior surface. The seat is disposed within the hollow interior of the seat retainer to control fluid flow through the pressure regulator. The seat may be adapted to slidingly engage the interior surface of the seat retainer during movement of the seat to dampen the movement of the seat. The seat may be elastically deformed by the seating surface when seated against the seating surface. The pressure regulator may have a stem extending through the seat retainer orifice and affixed to the solid body of the seat to move the seat in response to movement of a diaphragm.

Abstract: A pressure reducing valve assembly (10) for receiving fluid from a high pressure line and delivering the fluid to a low pressure line includes an elongated tubular body (12), a pressure reducing valve (14) having a single, valved opening (54) interposed between high and low pressure ports (68),(70), and a pressure reducing reservoir (16) defined substantially between the body (12) and the pressure reducing valve (14). The pressure reducing reservoir (16) comprises the only substantial fluid communication between the body (12) and the pressure reducing valve (14) and fluidly communicates with the high pressure port (68) by the single, valved opening (54). In preferred forms, the pressure reducing valve (14) includes a valve insert (64) housing a century spring (62) that, among other functions, serves as a reset valve to further reduce the space requirements and decreasing the cost and complexity of the valve assembly (10).

Abstract: An improved pressure regulator suitable for use with paint ball guns comprises a hollow valve body and a valve mechanism for selectively releasing gas from a gas source to an output. The valve body has a unitary coupling portion, a fill port, an output port, a discharge opening, and an inlet opening. The valve body defines two confined flow passageways. The first connecting the plug chamber and the discharge opening. The second connecting the fill port and the inlet opening. The valve mechanism includes a regulator seat, a polymeric valve plug movable within the plug chamber for sealing engagement with the regulator seat, and a fluid barrier axially movable with respect to the valve body. A spring is provided for urging the fluid barrier toward the regulator seat.

Abstract: A gas operated lantern includes a regulator having a simple mechanism allowing a user to start or stop the flow of gas through the regulator. The regulator preferably exhausts an air/gas mixture in the same direction as which gas enters the regulator. The regulator includes a diaphragm assembly which presses down on a valve assembly to open the valve assembly. A stem enters the regulator and is turnable by the user to raise the diaphragm assembly and thus cause the valve assembly to close. The lantern also includes an automatic choke. The choke is preferably a strip of metal located in the burner tube of the lantern which acts to close off a portion of the burner tube when the lantern is cold, causing the air/fuel mixture to become richer and thus easier to light. As the lantern heats up, the choke straightens to open the burner tube, allowing a greater flow of air through the lantern and causing the air/fuel mixture to become leaner and thus raising the efficiency of the lantern.

Abstract: A returnless fuel regulator includes a diaphragm assembly dividing the regulator into a control chamber for calibration purposes and a fuel chamber in communication with fuel under pressure from a supply and a fuel rail which receives fuel under regulation pressure. The regulator includes a spring-biased valve element which is opened to a greater or lesser extent by movement of the diaphragm assembly. In the diaphragm assembly, a post is spring-biased into a predetermined position relative to the diaphragm assembly to engage the valve element. The spring is formed of a shape memory alloy which elongates in response to a predetermined temperature of the fuel within the regulator to open or further open the valve element.

Abstract: A gas pressure-reducing valve in which a valve member to be seated on a valve seat having a valve hole opened at its central portion and leading to a pressure-reducing chamber between a body and a diaphragm is fixed on a valve stem connected to the central portion of the diaphragm and arranged coaxially with the valve axis. A bottomed mounting bore which is aligned with the valve axis and opened toward the pressure-reducing chamber is formed in the body. A cylindrical valve seat member forming a valve chamber between itself and the closed end of the mounting bore for accommodating the valve member and inserted into the mounting bore is fixed on the body. A valve seat facing the valve chamber is formed on the inner surface of the end portion of the valve seat member on the side of the pressure-reducing chamber. This arrangement makes it possible to reduce the number of parts and to enhance the degree of freedom for the arrangement of the parts in the body.

Abstract: A pressure regulator for controlling the delivery of gas from a high pressure source to a low pressure device. The pressure regulator includes a distribution body and a pressure adjusting mechanism. The distribution body has a high pressure region and a low pressure region formed therein. The pressure adjusting mechanism controls the transfer of gas from the high pressure region to the low pressure region. The pressure adjusting mechanism includes a piston, an adjusting slug, a seat retainer, a regulator seat, a regulator pin, and a resilient spring.