US PATENT SUBCLASS 92 / 32
.~ Working fluid-actuated interengaging means permits unidirectional rotation of element relative to fixed part

Current as of: June, 1999
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92 /   HD   EXPANSIBLE CHAMBER DEVICES

31  DF  RECTILINEARLY MOVING WORKING MEMBER AND COAXIAL OR PARALLEL ELEMENT SLIDABLY INTERENGAGED FOR RELATIVE ROTARY MOVEMENT {2}
32.~ Working fluid-actuated interengaging means permits unidirectional rotation of element relative to fixed part

DEFINITION

Classification: 92/32

(under subclass 31) Apparatus comprising means engageable between the element and a fixed part, and being effective to allow rotation of the element relative to the fixed part in one direction of movement of the working member, and to prevent rotation of said element relative to the fixed part in the other direction of movement of the working member, said means being moved to or from engaged position responsive to the action of the working fluid for the expansible chamber device.