US PATENT SUBCLASS 476 / 40
.~ Toroidal

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.~ Toroidal {6}
41  DF  .~.~> With condition responsive means to vary contact pressure
42  DF  .~.~> Plural toric cavities
43  DF  .~.~> Including threaded means to adjust idler
44  DF  .~.~> Including toothed gearing to adjust idler
45  DF  .~.~> Including spring means to bias friction surfaces into engagement
46  DF  .~.~> Idler supported by roller bearing

DEFINITION

Classification: 476/40

Toroidal:

(under subclass 39) Subject matter wherein said first and second concave portions are radially spaced from the axis of rotation of said first and second elements so that said cavity is substantially doughnut-shaped and surrounds the axis of rotation of said first and second elements. [figure]

SEE OR SEARCH THIS CLASS, SUBCLASS:

10, for fluid control of a toroidal transmission.

SEE OR SEARCH CLASS

475, Planetary Gear Transmission Systems or Components,

192, for a frictional toric planetary gear system.