US PATENT SUBCLASS 246 / 170
.~ Derailment

Current as of: June, 1999
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246 /   HD   RAILWAY SWITCHES AND SIGNALS

167 R  DF  CAB SIGNAL OR TRAIN CONTROL {20}
170.~ Derailment {2}
171  DF  .~.~> Contact trips {1}
173  DF  .~.~> Inertia trips

DEFINITION

Classification: 246/170

(under subclass 167) Subject matter having means actuated by the derailment of one or more wheels of the train.

SEE OR SEARCH THIS CLASS, SUBCLASS:

167, and all subclasses mentioned in the search notes appended thereto, for other systems having cab and control features.