US PATENT SUBCLASS 418 / 186
.~ Supply and exhaust passages in working member

Current as of: June, 1999
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418 /   HD   ROTARY EXPANSIBLE CHAMBER DEVICES

183  DF  WITH SUPPLY OR EXHAUST PASSAGE IN WORKING MEMBER {4}
186.~ Supply and exhaust passages in working member {1}
187  DF  .~.~> Passage extending through working member center of rotation

DEFINITION

Classification: 418/186

(under subclass 183) Apparatus in which the working member is provided with passage means through which working fluid passes enroute to and from the working chamber.