US PATENT SUBCLASS 303 / 113.1
.~ Having a valve system responsive to a wheel lock signal

Current as of: June, 1999
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303 /   HD   FLUID-PRESSURE AND ANALOGOUS BRAKE SYSTEMS

121  DF  SPEED-CONTROLLED {44}
113.1.~ Having a valve system responsive to a wheel lock signal {12}
113.2  DF  .~.~> With traction control {1}
113.4  DF  .~.~> Including a stroke sensor
113.5  DF  .~.~> With system apportioning control
114.1  DF  .~.~> Including hydraulic power booster {1}
114.3  DF  .~.~> Including pneumatic power booster
115.1  DF  .~.~> System controlled by expansible chamber type modulator {4}
116.1  DF  .~.~> Including pump with system solenoid valve {1}
116.3  DF  .~.~> Vehicle wheel operated pump
116.4  DF  .~.~> System pump structure detail
117.1  DF  .~.~> Spool valve
118.1  DF  .~.~> Pneumatic (relay or motorman) type
119.1  DF  .~.~> System controlled by solenoid valve {2}

DEFINITION

Classification: 303/113.1

Having a valve system responsive to a wheel lock signal:

(under subclass 121) Structure wherein there is provided a fluid pressure regulator which includes at least in part a fluid passage opening or closing structure responsive to a speed deceleration (e.g., actuating a brake pedal).