US PATENT SUBCLASS 418 / 210
.~ Axially spaced rotating members rotate on common axis

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

209  DF  PLURAL WORKING CHAMBERS {2}
210.~ Axially spaced rotating members rotate on common axis {2}
211  DF  .~.~> With axially moving vane or abutment
212  DF  .~.~> Intermediate member separates and engages plural working members {2}

DEFINITION

Classification: 418/210

(under subclass 209) Apparatus having a plurality of spaced members rotating about the same or different axis, at least one of the members being spaced in the direction of or along the rotational axis of another one of the rotating members.