Locking-type gas valve

Details Locking-type gas valve Locking-type gas valve

1976-04-02

1977-06-14

Schwadron, Martin P.

Valves and valve actuation

With means for blocking or disabling actuator

Released by non-valving actuator motion

F16K 3502

Patent

active

040292916

ABSTRACT:
In a locking-type gas valve having a plug rotatable by a stem having a portion which is pushed axially inwardly against a spring bias to disengage a projection thereon from a locking recess in a cap on the valve body, improved structure wherein the cap comprises a single flat plate having a slot therethrough forming the locking recess, the slot being adjacent a screw which secures the cap on the valve body and the screw having a washer which overlies the slot and retains the projection within the cap against the spring bias acting on the stem.

REFERENCES:
patent: 1953776 (1934-04-01), Roberts
patent: 2035762 (1936-03-01), Roberts
patent: 2194714 (1940-03-01), Mueller
patent: 2243128 (1941-05-01), Rutherford
patent: 2262703 (1941-11-01), Stuckenholt
patent: 3010693 (1961-11-01), Lamar
patent: 3292660 (1966-12-01), Zarybnicky
patent: 3764102 (1973-10-01), Shopsky

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