Motors: expansible chamber type – Working member position feedback to motive fluid control – Follower type
Patent
1988-06-13
1989-09-12
Look, Edward K.
Motors: expansible chamber type
Working member position feedback to motive fluid control
Follower type
91383, 91454, F15B 910
Patent
active
048649155
ABSTRACT:
A vacuum operated actuator has a spring biased diaphragm that is exposed on one side to atmosphere and on the other side to a vacuum chamber. An output means is connected to move with the diaphragm and carries a valve means which together with a tube a manually controlled tube operates to connect the vacuum chamber with either atmosphere or with a vacuum source so that the diaphragm and thereby the output moves with the movement and in the direction of the tube so as to provide an output force so as to move the output with a force substantially greater than the input force applied to the tube.
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Johnston Daniel U.
Zirnheld Richard A.
General Motors Corporation
Look Edward K.
Phillips R. L.
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