US PATENT SUBCLASS 701 / 20
.~.~ Railway vehicle speed control

Current as of: June, 1999
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701 /   HD   DATA PROCESSING: VEHICLES, NAVIGATION, AND RELATIVE LOCATION

1  DF  VEHICLE CONTROL, GUIDANCE, OPERATION, OR INDICATION {19}
19  DF  .~ Railway vehicle {1}
20.~.~ Railway vehicle speed control

DEFINITION

Classification: 701/20

Railway vehicle speed control:

(under subclass 19) Railway vehicle wherein the electrical data processing system or calculating computer functions to regulate the velocity of a vehicle confined to a track or rail.

SEE OR SEARCH CLASS

246, Railway Switches and Signals, especially

182, for train speed control means which are actuated by agencies not on the train or by wheel derailment or defects in train structure and mechanism.