US PATENT SUBCLASS 418 / 167
.~.~.~.~ With intake or exhaust passage in internal member

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

160  DF  MOVING CYLINDER {1}
161  DF  .~ Rotating {5}
164  DF  .~.~ Rotary internal reacting member {3}
166  DF  .~.~.~ Intermeshing peripheral surfaces {4}
167.~.~.~.~ With intake or exhaust passage in internal member

DEFINITION

Classification: 418/167

(under subclass 166) Apparatus in which the internal reacting member is provided with an opening through which working fluid enters or leaves the working chamber.