US PATENT SUBCLASS 475 / 216
.~.~.~ Friction gear engages facing concave surfaces

Current as of: June, 1999
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475 /   HD   PLANETARY GEAR TRANSMISSION SYSTEMS OR COMPONENTS

207  DF  NONPLANETARY VARIABLE SPEED OR DIRECTION TRANSMISSION COMBINED WITH PLANETARY TRANSMISSION {6}
214  DF  .~ Nonplanetary transmission is friction gearing {1}
215  DF  .~.~ Plural power paths to planetary gearing {2}
216.~.~.~ Friction gear engages facing concave surfaces

DEFINITION

Classification: 475/216

Friction gear engages facing concave surfaces:

(under subclass 215) Subject matter wherein said power transmitting mechanism includes a gear between two members having facing concave surfaces. [figure] [caption]input; output; control means; regime change inhibit