US PATENT SUBCLASS 475 / 93
.~.~ Valve inhibits fluid flow

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}
91  DF  .~ Fluid resistance inhibits relative rotation {5}
93.~.~ Valve inhibits fluid flow {7}
94  DF  .~.~.~> Speed or torque responsive valve control {2}
99  DF  .~.~.~> Interrelated valve control and mechanical clutch or brake {1}
102  DF  .~.~.~> Fluid brake(s) for plural planetary elements
103  DF  .~.~.~> Plural fluid clutches
104  DF  .~.~.~> Fluid brake for planetary element {3}
108  DF  .~.~.~> Fluid clutch includes gear type pump
109  DF  .~.~.~> Planet clutched to carrier {1}

DEFINITION

Classification: 475/93

Valve inhibits fluid flow:

(under subclass 91) Subject matter wherein the resistance to fluid flow is controlled by a passage way that is opened to a variable degree.