US PATENT SUBCLASS 415 / 176
.~ Means subjected to or is working fluid

Current as of: June, 1999
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415 /   HD   ROTARY KINETIC FLUID MOTORS OR PUMPS

175  DF  INCLUDING ADDITIONAL MEANS CAUSING OR CONTROLLING FLUID FLOW FOR HEAT EXCHANGING, LUBRICATING OR SEALING {1}
176.~ Means subjected to or is working fluid

DEFINITION

Classification: 415/176

(under subclass 175) Apparatus in which the means is acted upon and moved by the working fluid*.

(1) Note. The means may be merely an interface between the working fluid* and the heat exchanging, sealing or lubricating fluid which is moved or whose movement is prevented.