US PATENT SUBCLASS 91 / 31
.~ One path includes restriction

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}
31.~ One path includes restriction

DEFINITION

Classification: 91/31

(under subclass 6) Apparatus in which one of the flow paths to the working chamber has throttling means therein to restrict the flow of motive fluid to the working chamber.