US PATENT SUBCLASS 475 / 127
.~.~ Pressure regulation

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}
127.~.~ Pressure regulation {2}
128  DF  .~.~.~> Valving controls shift timing {1}
130  DF  .~.~.~> Manual regulator

DEFINITION

Classification: 475/127

Pressure regulation:

(under subclass 116) Subject matter wherein force exerted by the fluid that operates the clutch* or brake* is controlled.