US PATENT SUBCLASS 91 / 181
.~ Interconnected working members in communicating chamber portions

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

170 R  DF  RELATIVELY MOVABLE WORKING MEMBERS WITH ONE HAVING MOTIVE FLUID CONTROLLED BY, MOVABLY INTERCONNECTED WITH OR MOVED BY ANOTHER {12}
181.~ Interconnected working members in communicating chamber portions

DEFINITION

Classification: 91/181

(under subclass 170) Apparatus having a plurality of working members disposed in the same chamber and urged in opposite directions by the working fluid in the chamber, the working members being connected to a force transmitting means or mechanism which constrains them to move relative to each other.

(1) Note. Continuously intercommunicating working chambers have been considered as the same chamber for purposes of this subclass.

SEE OR SEARCH CLASS

92, Expansible Chamber Devices,

69+, for expansible chamber devices having interconnected oppositely movable working members in a common working chamber.