US PATENT SUBCLASS 91 / 410
.~ Working member controls relatively movable inlet valve

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

392  DF  WORKING MEMBER POSITION RESPONSIVE MOTIVE FLUID CONTROL {9}
410.~ Working member controls relatively movable inlet valve

DEFINITION

Classification: 91/410

(under subclass 392) Apparatus wherein a valve which has a

controlling part movable with respect to the working member is controlled in response to working member position to control the inlet of motive fluid to an expanding working chamber.

SEE OR SEARCH THIS CLASS, SUBCLASS:

398, for expansible chamber motors in which both the inlet and exhaust of motive fluid to a working chamber are simultaneously controlled in response to working member position.