Latched valve handle

Valves and valve actuation – With means for blocking or disabling actuator – Released by non-valving actuator motion

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Details

74526, 251104, 251110, 251288, 403117, F16K 3500, F16K 3502

Patent

active

047703881

ABSTRACT:
A latching device for the actuator in a valve installation. The actuator includes a handle for rotating a valve stem and a latch slidably mounted on the handle. The latch has one edge which abuts a stop when in the closed position and an opposed, angularly disposed, camming edge facing a stop at the open position.

REFERENCES:
patent: 557943 (1896-04-01), Bayley et al.
patent: 766324 (1904-08-01), Campbell
patent: 934099 (1909-09-01), Sheafe
patent: 1797282 (1931-03-01), Bentley
patent: 3228415 (1966-01-01), Geiss
patent: 3355141 (1967-11-01), Cooper
patent: 4126023 (1978-11-01), Smith et al.
patent: 4203572 (1980-05-01), Coffman
patent: 4570901 (1986-02-01), Holtgraver

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