Gas cylinder safety valve

Details Gas cylinder safety valve Gas cylinder safety valve

1990-08-23

1992-04-14

Hepperle, Stephen M.

Fluid handling

Line condition change responsive valves

Safety cut-off requiring reset

137517, F16K 17164, F16K 17168

Patent

active

051038609

ABSTRACT:
A safety valve is adapted to fit into the stem of a conventional service valve of a high pressure gas cylinder to prevent the escape of gas when the external part of the service valve is broken off. A plunger within the safety valve is biased away from a valve seat until a high pressure differential exists within the flow channels.

REFERENCES:
patent: 1625044 (1925-12-01), McKeown
patent: 1787445 (1927-12-01), Gade
patent: 2041198 (1936-05-01), McLean
patent: 2319485 (1940-09-01), Wyckoff
patent: 2367662 (1945-01-01), Baxter et al.
patent: 2388710 (1945-11-01), Sanford
patent: 2461940 (1949-02-01), Sundstrom
patent: 2796882 (1953-12-01), Bradley
patent: 3592219 (1969-05-01), Glese
patent: 3820565 (1974-06-01), Durbin
patent: 4067354 (1978-01-01), St. Clair
patent: 4562852 (1986-01-01), Britt
patent: 4606367 (1986-08-01), Britt

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