US PATENT SUBCLASS 475 / 67
.~.~ With synchronizing of positive clutch or brake

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}
59  DF  .~ Impeller-turbine type fluid circuit in series with planetary gearing {6}
67.~.~ With synchronizing of positive clutch or brake

DEFINITION

Classification: 475/67

With synchronizing of positive clutch or brake:

(under subclass 59) Subject matter wherein the two parts of a clutch* or a brake* are provided with toothed surfaces which intermesh when engaged and means is provided to reduce the relative movement between the two parts before such engagement to reduce the impact of engagement.

SEE OR SEARCH THIS CLASS, SUBCLASS:

139, and 303, for clutch or brake synchronizers in other planetary transmissions.

SEE OR SEARCH CLASS

74, Machine Element or Mechanism,

339+, for meshing assisters together with nonplanetary gearing.

192, Clutches and Power-Stop Control, 53.1+, for frictional synchronizing of positive clutches. [figure] [caption]synchronizer