Reducer valve for pressurized gas

Details Reducer valve for pressurized gas Reducer valve for pressurized gas

2006-10-17

2006-10-17

Hepperle, Stephen M. (Department: 3753)

Fluid handling

Line condition change responsive valves

With separate connected fluid reactor surface

C137S505000, C137S505250, C137S508000, C137S614170, C137S614200

Reexamination Certificate

active

07121298

ABSTRACT:
A reducer valve for pressurized gas includes a piston (2) displaceably mounted in a valve housing (3) against the force of a pressure spring (8). At one end, the piston (2) is subjected to pressure by the back pressure via a control pressure line (20) whereby the gas, which flows in from a pressurized gas source via a gas inlet (17), is throttled. The reducer valve is improved so that a specific gas volume remains in the connected pressurized gas source below a minimum pressure. A directional valve (24, 25) is provided in the control pressure line (20) and opens above a predetermined limit pressure.

REFERENCES:
patent: 2192141 (1940-02-01), McElwaine
patent: 2514458 (1950-07-01), Sinz
patent: 3522818 (1970-08-01), Suchy
patent: 5522422 (1996-06-01), Beck
patent: 5860448 (1999-01-01), Lee et al.
patent: 6167908 (2001-01-01), Röttger
patent: 1708117 (1971-04-01), None
patent: 0112765 (1984-07-01), None
patent: 2182421 (1987-05-01), None
patent: 2269441 (1994-02-01), None
patent: WO 98/19761 (1996-06-01), None

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