Linear motion actuator with spring centering means

Details Linear motion actuator with spring centering means Linear motion actuator with spring centering means

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

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