Slow opening cylinder valve

Details Slow opening cylinder valve Slow opening cylinder valve

1979-03-28

1980-07-08

Rosenthal, Arnold

Valves and valve actuation

With material guide or restrictor

Movable or resilient guide or restrictor

251210, F16K 152

Patent

active

042113865

ABSTRACT:
A valve for controlling the flow of gases from high pressure cylinders is provided having a projected raised annular valve seat surrounding a gas passage, a stem in threaded relation to the valve body whereby rotation of the valve stem in the valve body moves the valve stem toward and away from the valve seat, a circumferential shroud extending from the end of the valve stem and surrounding the valve seat when the valve is closed and partially open, a resilient seal member positioned within the recess on the end of the valve stem formed by the shroud, said resilient seat member having a tapered projection which extends into the gas inlet passage when the valve is in closed position and provides a gas tight seal between the valve stem and the valve seat.

REFERENCES:
patent: 1884442 (1932-10-01), Wells et al.
patent: 2439282 (1948-04-01), Beckett
patent: 3166289 (1965-01-01), Engstrom

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