US PATENT SUBCLASS 91 / 359
.~ Regenerative or positive feedback type

Current as of: June, 1999
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91 /   HD   MOTORS: EXPANSIBLE CHAMBER TYPE

358 R  DF  WORKING MEMBER POSITION FEEDBACK TO MOTIVE FLUID CONTROL {12}
359.~ Regenerative or positive feedback type

DEFINITION

Classification: 91/359

(under subclass 358) Apparatus comprising feedback signal means which acts on the valve means to cause the working member to increase or continue its movement in the same direction in which it was started by the signal input means.