US PATENT SUBCLASS 475 / 139
.~.~.~ And friction synchronizer

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

31  DF  FLUID DRIVE OR CONTROL OF PLANETARY GEARING {11}
116  DF  .~ Fluid controlled mechanical clutch or brake {12}
138  DF  .~.~ With positive clutch or brake {1}
139.~.~.~ And friction synchronizer

DEFINITION

Classification: 475/139

And friction synchronizer:

(under subclass 138) Subject matter wherein frictional means is provided to equalize the speed of the two clutch* or brake* parts before the teeth thereof intermesh.

SEE OR SEARCH THIS CLASS, SUBCLASS:

67, and 303, for other synchronizing clutches or brakes.

SEE OR SEARCH CLASS

192, Clutches and Power-Stop Control,

53+, for friction synchronizers, per se.