US PATENT SUBCLASS 418 / 219
.~.~.~ Vane

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

209  DF  PLURAL WORKING CHAMBERS {2}
215  DF  .~ Axially spaced working chambers {2}
217  DF  .~.~ Axially moving abutment or vane {2}
219.~.~.~ Vane

DEFINITION

Classification: 418/219

(under subclass 217) Apparatus provided with a vane that is movable in a direction along or parallel to the axis of rotation of the rotating members.