Automatic flow control valve

Details Automatic flow control valve Automatic flow control valve

1995-04-13

1998-09-01

Rivell, John

Fluid handling

Line condition change responsive valves

With separate connected fluid reactor surface

13750514, 13750518, 1376142, 251324, F16K 31363

Patent

active

057996881

ABSTRACT:
A pressure valve having a fluid inlet, a first chamber, a throughbore, a second chamber, a fluid outlet and a valve stem. The valve stem is mounted within a valve body and has several different diameters. A pressure condition within one or more of the chambers acts upon the valve stem to urge the stem into either an open position or a closed position, depending upon the design of the valve. The valve is particularly suitable for bypass valves, pressure regulating valves, over-pressure protection valves, lost-pressure protection valves, and other pressure-sensitive valve applications.

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One page advertisement from Hydro Manufacturing & Sales, P.O. Box 308, Missouri City, Texas 77459, date unknown.
Applicant's three sketches describing hand-operated waterjet lance sold by Applicant on Jul. 7, 1989.

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