De-clutch mechanism for valve operator

Details De-clutch mechanism for valve operator De-clutch mechanism for valve operator

1975-03-26

1977-05-10

Wyche, Benjamin W.

192 clutches and power-stop control

Clutches

Plural clutch-assemblage

192 38, 192114R, 74625, 64DIG2, F16H 3300, F16D 2102

Patent

active

040223094

ABSTRACT:
A de-clutch mechanism is actuated, when the power is off, by manual actuation of a de-clutch lever shaft. When thus actuated, the de-clutch mechanism couples a rotatable driven sleeve to a handwheel drive and decouples the sleeve from the power drive. When the power is activated, the de-clutch mechanism automatically disconnects the handwheel drive. A typical application of the de-clutch mechanism is in valve operators.

REFERENCES:
patent: 2050910 (1936-08-01), Zancan
patent: 3066777 (1962-12-01), Hoffman
patent: 3198033 (1965-08-01), Fry
patent: 3262532 (1966-07-01), Phelps
patent: 3383948 (1968-05-01), Palmer et al.
patent: 3414097 (1968-12-01), Denkowski
patent: 3416566 (1968-12-01), Anderson
patent: 3515250 (1970-06-01), Cantalupo
patent: 3554337 (1971-01-01), Denkowski

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