US PATENT SUBCLASS 418 / 55.6
.~.~ With lubricant, liquid seal or nonworking fluid separation

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

54  DF  WORKING MEMBER HAS PLANETARY OR PLANETATING MOVEMENT {6}
55.1  DF  .~ Helical working member, e.g., scroll {5}
55.6.~.~ With lubricant, liquid seal or nonworking fluid separation

DEFINITION

Classification: 418/55.6

With lubricant, liquid seal or nonworking fluid separation:

(under subclass 55.1) Apparatus in which a means is provided to remove a lubricant, liquid seal or nonworking fluid from the working fluid.