US PATENT SUBCLASS 477 / 48
.~.~.~.~.~ With electric valve control

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  DF  .~.~.~.~ Ratio change controlled {2}
48.~.~.~.~.~ With electric valve control {1}
49  DF  .~.~.~.~.~.~> Duty ratio control

DEFINITION

Classification: 477/48

With electric valve control:

(under subclass 46) Subject matter wherein regulation of the fluid pressure is affected by an electrically actuated valve.