Valve with handle latch/lock

Details Valve with handle latch/lock Valve with handle latch/lock

1992-06-12

1993-05-25

Walton, George L.

Valves and valve actuation

With means for blocking or disabling actuator

Released by non-valving actuator motion

70180, 70207, 70224, 137385, 251106, F16K 3502, F16K 3506

Patent

active

052133087

ABSTRACT:
A rotary valve with a latching/locking operating handle assembly includes a valve body carrying a rotary valve element having an outwardly extending valve stem. A main handle body is joined to the stem and provides guide grooves for cooperating first and second operating members connected by a cam assembly such that selective horizontal movement of the first operating member produces vertical movement of the second operating member. A latch pin carried by the second member is thereby caused to move between engaged and disengaged positions with the valve body.

REFERENCES:
patent: 195611 (1977-09-01), Jarecki
patent: 861501 (1907-07-01), Case
patent: 924423 (1909-06-01), Brandenburg
patent: 943838 (1909-12-01), Miller
patent: 951878 (1910-03-01), Dolan
patent: 1121024 (1914-12-01), Knezek
patent: 1412720 (1922-04-01), Szafranski
patent: 1419469 (1922-06-01), Paschke
patent: 1437369 (1922-11-01), Tallman
patent: 2081464 (1937-05-01), Stewart
patent: 2223032 (1940-11-01), Farmer
patent: 2853100 (1958-09-01), Donnelly
patent: 3228415 (1966-01-01), Geiss
patent: 3349639 (1967-10-01), Magoon
patent: 3648970 (1972-03-01), Hartmann et al.
patent: 4203572 (1980-05-01), Coffman

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