US PATENT SUBCLASS 475 / 115
.~.~ Stepless ratio change controlled

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}
114  DF  .~ Fluid control of friction planetary gearing {1}
115.~.~ Stepless ratio change controlled

DEFINITION

Classification: 475/115

Stepless ratio change controlled:

(under subclass 114) Subject matter wherein the planetary transmission is capable of a stepless speed ratio* change and such change is regulated by means of fluid pressure. [figure]