US PATENT SUBCLASS 91 / 162
.~.~.~ High and low pressure faces on each working member

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

152  DF  MULTIPLE EXPANSION {7}
159  DF  .~ Expansion between relatively movable working members {2}
161  DF  .~.~ Fluid acts on each working member in single direction {1}
162.~.~.~ High and low pressure faces on each working member

DEFINITION

Classification: 91/162

(under subclass 161) Apparatus wherein each working member has at least two integrally connected working faces disposed in the same direction, one of the faces receiving motive fluid from a high pressure source and another face simultaneously receiving motive fluid by cross expansion from another relatively movable working member.