Fluid handling – Line condition change responsive valves – Safety cut-off requiring reset
Patent
1978-07-07
1980-04-01
Weakley, Harold W.
Fluid handling
Line condition change responsive valves
Safety cut-off requiring reset
137537, 137540, F16K 1700
Patent
active
041956567
ABSTRACT:
A pressure regulator of the spring loaded diaphragm type having a chamber on one side of the diaphragm and provided with an inlet and an outlet separated by a transverse wall into which an orifice device is mounted for stopping the flow of gas through the regulator during excess flow or low outlet pressure conditions.
During normal operation the valve element actuated by the diaphragm will co-act with the valve seat of the orifice device to regulate the thruput flow, while engaging a valve stem of the orifice device to hold the same open. The orifice device has a body through which the valve stem extends. A helical spring interconnects the body and the valve stem by being separately threaded to each component whereby the orifice device is normally biased in a closed position.
REFERENCES:
patent: 347840 (1886-08-01), Stubbe
patent: 2189129 (1940-02-01), Bridwell
patent: 2788798 (1957-04-01), Mueller
patent: 2832641 (1958-04-01), Korda
patent: 2896661 (1959-07-01), Becker
patent: 3756273 (1973-09-01), Hengesbach
patent: 3971410 (1976-07-01), St. Clair
patent: 4059017 (1977-11-01), Settlemyer
patent: 4067355 (1978-01-01), St. Clair
Bailey James E.
Kanerva Robert A.
Lewis Charles R.
The Singer Company
Weakley Harold W.
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