Valves and valve actuation – With means for blocking or disabling actuator – Released by non-valving actuator motion
Patent
1983-08-29
1984-06-26
Walton, George L.
Valves and valve actuation
With means for blocking or disabling actuator
Released by non-valving actuator motion
16112, 16DIG36, 74504, 74526, 74523, 74543, 251243, 251288, F16K 3502, F16K 3160
Patent
active
044562195
ABSTRACT:
A spring-locking handle mechanism in which a flat piece of spring stock is formed in a generally U-shaped configuration to provide a locking spring, one leg of which bears against the underside of the socket portion of a conventional two-piece locking handle, and the other leg of which bears downwardly on the upper surface of the handle portion. The spring legs must be spread apart in order to assemble the spring with the handle mechanism and are thus normally under tension, so that the handle portion is biased in its downward or locking position relative to the socket portion to discourage unintentional lifting. The width of the one leg corresponds to the distance between the depending locking lugs on the handle portion so as to fit snugly therebetween in both the locked and unlocked position of the handle. When the handle is raised to its unlocked position and then turned, the locking lugs engaging the sides of the one spring leg assure that the spring turns with the handle to maintain a spring load on the handle throughout the handle operating range of rotation.
REFERENCES:
patent: 538317 (1895-04-01), Boynton
patent: 1509816 (1924-09-01), Kendrick
patent: 1583142 (1926-05-01), Hanrahan
patent: 2065750 (1936-12-01), Safford
patent: 2147287 (1939-02-01), Farmer
patent: 2855154 (1958-10-01), Tyler et al.
patent: 3019811 (1962-02-01), Young et al.
patent: 3184212 (1965-05-01), Billeter
Ferry Gene S.
Scott Daniel G.
American Standard Inc.
Falce G. J.
Walton George L.
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