US PATENT SUBCLASS 91 / 241
.~.~.~ Compression actuated discharge to motive fluid supply


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

218  DF  CYCLICALLY OPERABLE {34}
236  DF  .~ Multiple exhaust passages (e.g., compression control) {5}
240  DF  .~.~ Fluid pressure actuated valve for second exhaust passage {2}
241.~.~.~ Compression actuated discharge to motive fluid supply


DEFINITION

Classification: 91/241

(under subclass 240) Apparatus in which the second exhaust passage is connected to the motive fluid supply, and the valve which controls said second passage is biased to closed position by fluid supply pressure; said valve being opened by compression pressure within the working chamber which exceeds the supply pressure, to permit motive fluid to pass from the expansible chamber to the fluid supply.