US PATENT SUBCLASS 418 / 176
.~.~ Swinging partition


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

160  DF  MOVING CYLINDER {1}
161  DF  .~ Rotating {5}
176.~.~ Swinging partition


DEFINITION

Classification: 418/176

(under subclass 161) Apparatus wherein the rotating cylinder includes a relatively movable member that is pivoted thereon to oscillate back and forth in relation to said cylinder, said relatively movable member also cooperating with the radially spaced inner surface to form the working chamber.