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| Number | Title | Issue Date |
| 7178335 | Pressure regulator A pressure regulator includes a housing, a metering spool, a first pressure chamber at a reference pressure to which one end of the metering spool is exposed, a spring within the first pressure chamber acting against the one end of the metering spool, a second press... | 02/20/2007 |
| 7150299 | Assembly and method for containing, receiving and storing fluids and for dispensing gas from a fluid control and gas delivery assembly having an integrated fluid flow restrictor A fluid control and gas delivery assembly and method for containing, receiving and storing hazardous fluids and for dispensing gas comprising a container, a fluid fill path, a gas dispensing path, a first shut-off valve, a pressure reducer, a fluid flow restrictor, ... | 12/19/2006 |
| 7077158 | Velocity head compensated valve assembly A valve assembly includes a valve body configured to define a chamber forming a primary flowpath between an inlet port and a discharge port, an isolator disposed inside said chamber, and a poppet having a bore. The isolator is defined by a skirt and a stem, with the... | 07/18/2006 |
| 7013916 | Sub-atmospheric gas delivery method and apparatus An apparatus for containing and delivering hazardous gases at sub-atmospheric pressure from a pressurized container is provided which includes a valve body in sealed communication with an outlet orifice of the pressurized container. The outlet orifice of the pressur... | 03/21/2006 |
| 6971402 | Liquid control valve In order to achieve an object to provide a liquid control valve of normally close valve type which has both of an outflow side pressure automatic regulating function and a water stop function, the liquid control valve has a pressure regulating piston which moves wit... | 12/06/2005 |
| 6923197 | Pressure regulator with tamper-proof safety feature 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... | 08/02/2005 |
| 6786231 | Fluid flow regulator with restrictor pin A fluid flow regulator having a chamber comprising a port opening and a tapered pin disposed within the opening, for controllably restricting the cross-sectional flow area through the port. The tapered pin moves relative to the bore of the port that it is disposed i... | 09/07/2004 |
| 6773605 | Method and system for controlling a separator unit for multiphase separation of fluids A method and a system for controlling a separator unit for multiphase separation of fluids of different densities, wherein either a pressure in the separator unit or a level of one or more of the liquids in the separator unit is adjusted in relation to a reference v... | 08/10/2004 |
| 6758238 | Combined pressure regulator and shut-off valve A regulator valve has a housing with a seal member therein. First and second plungers are movable in the housing toward and away from the seal member. The plungers are sealed to the housing and have passages therethrough. The plungers are biased toward the seal memb... | 07/06/2004 |
| 6752169 | Pressure regulator and shut-off valve A regulator for controlling the pressure of flowing fluid and also for selectively fully enabling or stopping the flow. The regulator valve includes a valve housing having an inlet passage and an outlet passage connected by a flow passage with a seat surrounding the... | 06/22/2004 |
| 6227238 | Valve providing pressure differential proportional to downstream pressure An apparatus for providing a hydraulic pressure differential proportional to a downstream pressure. The apparatus includes a first chamber having a first cross section area, a main chamber portion, a first end, and a second end; a first spool portion loca... | 05/08/2001 |
| 6019121 | Pressure reducing valve A pressure reducing valve 30 comprises a body unit 32, a bonnet unit 36, and an operating unit 38 having a handle 126. The pressure reducing valve 30 further comprises a first diaphragm 84, a second diaphragm 86, a third diaphragm 100, and a fourth diaphr... | 02/01/2000 |
| 6006780 | Two-stage, warm-gas high pressure regulator A pneumatic regulating valve that operates on high-temperature, high-pressure gases. This invention reduces the upstream pressure of a flow of gas, which can be as high as 10,000 psia, down to a level usable by downstream control valves, which may require... | 12/28/1999 |
| 5662137 | Optimal pneumatic pressure regulator with electronic compensation A pneumatic pressure regulator comprised of at least an obturator actuated by at least an elastic membrane comprised of at least an inlet orifice which permits the entry of a fluid under pressure and comprises at least an outlet orifice which permits the ... | 09/02/1997 |
| 5597012 | Valve with a threshold with retractable push rod A valve assembly having a body with a bore. The housing has an inlet for communicating pressurized fluid to the bore and an outlet for delivery of the fluid to a system. A piston located in the bore carries a valve element connected to a push rod. The pus... | 01/28/1997 |
| 5230359 | Supply pressure compensated fluid pressure regulator and method A fluid pressure regulator and method of regulating high pressure fluid from a container such as high pressure gas cylinder, compensate for variation in the supply pressure to the regulator to limit variation in the outlet pressure of the regulator due to... | 07/27/1993 |
| 4806217 | Back-flushable filter and pressure-regulator particularly useful therewith A filter device comprises a central tube, a housing enclosing the central tube and defining an internal chamber therewith, and a filter body within the internal chamber. The central tube includes a plug between the inlet and outlet which directs the fluid... | 02/21/1989 |
| 4323086 | Pressure responsive flow control apparatus for breathing system Pressure responsive flow control apparatus for connection between a source of emergency breathing gas and a hood adapted to fit about a wearer's head for receiving the breathing gas at a controlled flow for inhalation and for receiving the exhalations of ... | 04/06/1982 |
| 4182365 | Control valve for use with variable displacement piston pump For use with a variable displacement piston pump of the type including a hydrostatic bearing for transmitting a thrust load for affecting the pump output, a valve responsive to pump discharge manifold pressure for controlling the pressure in the pump cham... | 01/08/1980 |
| 4106510 | Servo valve The servo valve disclosed herein is rendered essentially insensitive to changes in pressure across the valving element by providing spring biasing of the valving element which is controlled by a diaphragm exposed to the inlet and outlet pressures. In a pa... | 08/15/1978 |
| 4086994 | Fluid pressure modulating apparatus for a fluidically actuated frictional engaging apparatus in a vehicle transmission This invention relates to a fluid pressure supplying method for fluidically actuating a frictional engaging apparatus in a vehicle transmission, including the steps of supplying high pressure to actuate the frictional engaging apparatus, reducing the high... | 05/02/1978 |
| 4000795 | Apparatus for controlling the pressure of a fluid fed to a clutch A fluid pressure regulating apparatus in which a conduit means connects a source of pressure fluid to a fluid pressure operated clutch for actuating the latter and in which a valve means is interposed for controlling the pressure of fluid passing therethr... | 01/04/1977 |
