US PATENT SUBCLASS 418 / 187
.~.~ Passage extending through working member center of rotation


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  DF  .~ Supply and exhaust passages in working member {1}
187.~.~ Passage extending through working member center of rotation


DEFINITION

Classification: 418/187

(under subclass 186) Apparatus wherein the passage means includes at least one working fluid passage passing through or including the working member axis of rotation.