US PATENT SUBCLASS 477 / 53
.~.~ Impeller-turbine-type

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

34  DF  TRANSMISSION CONTROL {15}
52  DF  .~ Including fluid drive {2}
53.~.~ Impeller-turbine-type {8}
54  DF  .~.~.~> Engine controlled
55  DF  .~.~.~> With countershaft gearing {3}
59  DF  .~.~.~> With hydrodynamic braking
60  DF  .~.~.~> With nonratio brake
61  DF  .~.~.~> Control responsive to fluid drive
62  DF  .~.~.~> With clutch control {2}
66  DF  .~.~.~> With fluid unit vane control
67  DF  .~.~.~> Fill and empty-type fluid units

DEFINITION

Classification: 477/53

Impeller-turbine-type:

(under subclass 52) Subject matter wherein the fluid torque transmitting means is made up of at least two rotary coaxial vaned elements forming a fluid filled torus, one of the elements being an input element and the other an output element.