US PATENT SUBCLASS 91 / 45
.~ Common or interconnected valve means control motive fluid and fluid for locking means


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

41  DF  WITH CORRELATED CONTROL OF MOTIVE FLUID AND LOCKING MEANS {4}
45.~ Common or interconnected valve means control motive fluid and fluid for locking means


DEFINITION

Classification: 91/45

(under subclass 41) Apparatus in which holding and/or release of the working member is accomplished by control of flow of a nonworking fluid or by control of fluid flow to a fluid actuated holding means, and in which the flow of actuating fluid for the holding means, or the flow of nonworking fluid is controlled by the same valve, or by a valve which is mechanically interconnected with a valve, which controls the flow of motive fluid.

(1) Note. The common or interconnected valve means may control the motive fluid and/or fluid to provide holding of the working member, directly, or may control actuating fluid for operating fluid actuated valve means which control the motive fluid and/or fluid to provide holding.