US PATENT SUBCLASS 477 / 46
.~.~.~.~ Ratio change controlled

Current as of: June, 1999
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477 /   HD   INTERRELATED POWER DELIVERY CONTROLS, INCLUDING ENGINE CONTROL

34  DF  TRANSMISSION CONTROL {15}
37  DF  .~ Continuously variable friction transmission {8}
44  DF  .~.~ Belt-type {1}
45  DF  .~.~.~ Fluid pressure control {1}
46.~.~.~.~ Ratio change controlled {2}
47  DF  .~.~.~.~.~> Engine coast braking
48  DF  .~.~.~.~.~> With electric valve control {1}

DEFINITION

Classification: 477/46

Ratio change controlled:

(under subclass 45) Subject matter wherein the regulation of the fluid pressure is effective to change the transmission speed ratio*.