US PATENT SUBCLASS 418 / 90
.~ Wick or absorbent material feed

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

83  DF  HEAT EXCHANGE OR NON-WORKING FLUID LUBRICATING OR SEALING {13}
90.~ Wick or absorbent material feed

DEFINITION

Classification: 418/90

(under subclass 83) Apparatus in which the nonworking fluid is fed by means of the capillary action of an element either to the incoming working fluid for contacting therewith the relatively moving parts of the device or directly to one of the relatively movable parts of the device.