US PATENT SUBCLASS 476 / 42
.~.~ Plural toric cavities

Current as of: June, 1999
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476 /   HD   FRICTION GEAR TRANSMISSION SYSTEMS OR COMPONENTS

39  DF  FRICTION GEAR INCLUDES IDLER ENGAGING FACING CONCAVE SURFACES {1}
40  DF  .~ Toroidal {6}
42.~.~ Plural toric cavities

DEFINITION

Classification: 476/42

Plural toric cavities:

(under subclass 40) Subject matter which further includes an additional set of concave portions defining a second substantially doughnut-shaped cavity; said second cavity also

including an element rotatable about its own axis and mounted in said second cavity. [figure]