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| Number | Title | Issue Date |
| 7137404 | Direct acting pressure reducing valve A direct acting pressure reducing valve includes a valve-inlet pressure introduction port; a valve-outlet pressure output port; a main valve for opening and closing a communicating conduit; a pilot pressure chamber formed with a flexible diaphragm member; a communic... | 11/21/2006 |
| 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 |
| 6488046 | Pressure reducer for compressed gases Pressure reducer for compressed gases, comprising at least one regulation stage constituted by a chamber divided by a first membrane (25) into two chambers (23, 24), one of which said chambers (24) is maintained at a reference pressure and the other (23) ... | 12/03/2002 |
| 5746245 | Meters The meter 2, e.g. a gas meter includes an inlet boss 4 providing an unregulated supply of gas via a valve means 8 which regulates the flow of gas as it passes into a chamber 6. The valve means 8 forms part of a governor which is formed integral with the g... | 05/05/1998 |
| 4840195 | Piston-backed gas pressure regulator A gas pressure regulator including a housing having a high pressure chamber into which the gas to be regulated is fed, a low pressure chamber, and an orifice between the high pressure chamber and the low pressure chamber. A bonnet is mounted on the housin... | 06/20/1989 |
