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| Number | Title | Issue Date |
| 7168445 | Intra-cylinder tubular pressure regulator A fluid control system for use with toxic or corrosive gases (for example) has been provided that includes a fluid pressure regulator comprising a fluid inlet; a fluid outlet; a first fluid flow path between the fluid inlet and the fluid outlet; a valve seat positio... | 01/30/2007 |
| 7165573 | Compressed natural gas pressure regulator A pressure-reducing regulator comprising a regulator body having an inlet port, an outlet port, and a flow path. A valve element is moved relative to a valve seat by a diaphragm assembly to control gas flow along the flow path. The regulator comprises one or more of... | 01/23/2007 |
| 7111625 | Demand valves for breathing apparatus There is described a demand valve for a breathing apparatus with a “first breath” mechanism, wherein a demand valve is held closed by resiliently latching an operating diaphragm of the valve in a position wherein the valve is closed. The diaphragm is resiliently... | 09/26/2006 |
| 7093605 | Pressure control device for a pipeline A pipeline assembly for transporting a fluid such as oil, gas and water along a fluid path extending in the pipeline has a pressure control device incorporated therein. The pressure control device regulates the pressure of the fluid downstream the pressure control d... | 08/22/2006 |
| 7055547 | Circuit balancing valve A circuit balancing valve includes a valve body having fluid flow passage extending therethrough. The fluid flow passage includes a fluid inlet passage-side in fluid communication with a supply line, and a fluid flow outlet passage-side in fluid communication with a... | 06/06/2006 |
| 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 |
| 6523565 | Pressure regulator The present invention provides a pressure regulator comprising a housing including a high pressure chamber and a low pressure chamber, a moveable pressure boundary member configured to isolate the high pressure chamber from the low pressure chamber, a pin... | 02/25/2003 |
| 5303734 | Pressure regulator A pressure regulator includes a housing having a chamber that receives a pressure responsive member. The pressure responsive member includes an internal charge that allows a movable portion of the regulator to react in response to pressure differentials. ... | 04/19/1994 |
| 4776368 | Fluid pressure regulator A fluid pressure regulator, for controlling the pressure of fluid in accordance with the pressure of an air signal, is characterized by a housing having a chamber divided into fluid and air chambers by at least two flexible diaphragms. The fluid chamber h... | 10/11/1988 |
