Expansible chamber devices – Collapsible chamber wall portion – Wall portion formed of flexible material
Patent
1985-12-11
1987-12-08
Garrett, Robert E.
Expansible chamber devices
Collapsible chamber wall portion
Wall portion formed of flexible material
92 98D, 92131, 267166, 403166, F01B 1900, F16J 300
Patent
active
047111585
ABSTRACT:
A vacuum operated actuator is provided with a centering mechanism that operates with a single spring to normally locate the output in a mid-position and also return same from both an extended position and a retracted position. The centering mechanism also includes a connector that may be changed to adjust the output for connection with the device to be actuated without changing the centering and return operation.
REFERENCES:
patent: 742290 (1903-10-01), Clark
patent: 3153988 (1964-10-01), Warstler
patent: 3168854 (1965-02-01), Neilson
patent: 3253610 (1966-05-01), Pahl et al.
patent: 3537355 (1970-11-01), Bliss
patent: 3991661 (1976-11-01), Mocha
Hoffman Donald E.
Kayyod Fariborz
Garrett Robert E.
General Motors Corporation
Phillips R. L.
Williamson Mark A.
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