US PATENT SUBCLASS 91 / 153
.~ Duplex


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

152  DF  MULTIPLE EXPANSION {7}
153.~ Duplex {1}
154  DF  .~.~> Cut-off or reversing


DEFINITION

Classification: 91/153

(under subclass 152) Apparatus comprising a motive fluid distributing valve for each of the working chambers, the fluid distributing valve of one working chamber being operated by the working member of another working chamber.

SEE OR SEARCH THIS CLASS, SUBCLASS:

191+, for expansible chamber having a plurality of relatively movable working members wherein the position of each working member cyclically controls another.