US PATENT SUBCLASS 477 / 123
.~.~.~ With positive shift means

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

34  DF  TRANSMISSION CONTROL {15}
115  DF  .~ Transmission controlled by engine {4}
121  DF  .~.~ By input manifold pressure or engine fuel control {6}
123.~.~.~ With positive shift means {1}
124  DF  .~.~.~.~> With synchronization

DEFINITION

Classification: 477/123

With positive shift means:

(under subclass 121) Subject matter wherein the gear transmission* uses toothed positively engaging elements to change from one speed ratio* to another, and including the sliding of a gear on a shaft to effect ratio change.