US PATENT SUBCLASS 91 / 526
.~.~ With multiway valve in series with control means

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

508  DF  PLURAL RELATIVELY MOVABLE OR RIGIDLY INTERCONNECTED WORKING MEMBERS {11}
525  DF  .~ With means to control the working fluid to one working member for movement relative to another without controlling the working fluid to the other working member by said means {4}
526.~.~ With multiway valve in series with control means

DEFINITION

Classification: 91/526

With multiway valve in series with control means:

(under subclass 525) Apparatus and having a multiway valve disposed in series with the means to individually control one working member whereby the relative motion between working members may be produced.