US PATENT SUBCLASS 91 / 431
.~ Continuous motive fluid flow through chamber in motor idle condition


Current as of: June, 1999
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91 /   HD   MOTORS: EXPANSIBLE CHAMBER TYPE

418  DF  WITH MOTIVE FLUID VALVE {32}
431.~ Continuous motive fluid flow through chamber in motor idle condition


DEFINITION

Classification: 91/431

(under subclass 418) Apparatus in which the valve means is so constructed as to provide for a circulating flow of motive fluid into and out of the motor working chamber while the motor working member is stationary.

SEE OR SEARCH THIS CLASS, SUBCLASS:

47+, for expansible chamber motors having constantly applied motive fluid with controlled venting.

52, for expansible chamber motors having a constantly open throttled exhaust with controlled motive fluid supply.