US PATENT SUBCLASS 74 / 364
.~.~.~.~.~.~.~ Fluid operated

Current as of: June, 1999
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74 /   HD   MACHINE ELEMENT OR MECHANISM

640  DF  GEARING {31}
325  DF  .~ Interchangeably locked {11}
*  DD  .~.~ Slidable keys or clutches {3}
*  DD  .~.~.~ Single clutch shaft {3}
*  DD  .~.~.~.~ Progressive {2}
362  DF  .~.~.~.~.~ Multiple key {1}
363  DF  .~.~.~.~.~.~ Spur {2}
364.~.~.~.~.~.~.~ Fluid operated

DEFINITION

Classification: 74/364

(under subclass 363) Transmissions, in which the clutches or keys are shifted by manually controlled fluid operated means, or the clutches are of the fluid type.

SEE OR SEARCH THIS CLASS, SUBCLASS:

334, for preselector type combined clutch and gear, interchangeably locked gearing.

346, for fluid operated longitudinally slidable interchangeably locked gearing.

730, and see (1) Note thereto for the distinction between a fluid clutch and a fluid drive.

SEE OR SEARCH CLASS 192, Clutches and Power-Stop Control,

85+, for fluid pressure operators for clutches.