US PATENT SUBCLASS 91 / 25
.~.~.~ Working member or part carried thereby uncovers inlet port

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

6  DF  FLUID SUPPLY THROUGH DIVERSE PATHS TO SINGLE EXPANSIBLE CHAMBER {12}
20  DF  .~ Position responsive {4}
24  DF  .~.~ Additional inlet path opened in response to position {1}
25.~.~.~ Working member or part carried thereby uncovers inlet port {1}
26  DF  .~.~.~.~> First path has check valve or selectively adjustable throttle

DEFINITION

Classification: 91/25

(under subclass 24) Apparatus in which the second supply path includes a supply port in the working chamber which is closed by the working member or a relatively movable part carried on the working member, the working member or said relatively movable part acting to open said supply port in response to movement of the working member.

SEE OR SEARCH THIS CLASS, SUBCLASS:

21, for rotary expansible chamber motors having an additional inlet path opened in response to the position of the rotary working member.