US PATENT SUBCLASS 475 / 123
.~.~.~.~.~ Electrical control


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}
118  DF  .~.~ Speed responsive control {3}
121  DF  .~.~.~ Ratio change {1}
122  DF  .~.~.~.~ Speed responsive valve control {2}
123.~.~.~.~.~ Electrical control


DEFINITION

Classification: 475/123

Electrical control:

(under subclass 122) Subject matter wherein between the transmission part and the valve is an electrical or magnetic device.