US PATENT SUBCLASS 303 / 132
.~.~.~ Speed responsive and other conditions (e.g., acceleration, pressure, track hazard, friction)

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

121  DF  SPEED-CONTROLLED {44}
127  DF  .~ Pneumatic {1}
128  DF  .~.~ For a railway vehicle (e.g., train) {7}
132.~.~.~ Speed responsive and other conditions (e.g., acceleration, pressure, track hazard, friction)

DEFINITION

Classification: 303/132

Speed responsive and other conditions (e.g., acceleration, pressure, track hazard, friction):

(under subclass 128) Train speed control in which the rate and an additional input determine subsequent braking action.