US PATENT SUBCLASS 418 / 206.6
.~.~.~ With sealing means

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

191  DF  INTERENGAGING ROTATING MEMBERS {9}
205  DF  .~ Like rotary members {1}
206.1  DF  .~.~ Having each radial protuberance of like dimension {8}
206.6.~.~.~ With sealing means

DEFINITION

Classification: 418/206.6

With sealing means:

(under subclass 206.1) Apparatus comprising means to prevent leaking of the working fluid.