US PATENT SUBCLASS 246 / 218
ELECTRIC ACTUATION

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

218ELECTRIC ACTUATION {9}
219  DF  .~> Control circuits
220  DF  .~> Switch signals
221  DF  .~> Motor systems {5}
245  DF  .~> Car-actuated generators
246  DF  .~> Car-actuated circuit controllers {6}
253  DF  .~> Switch or signal actuated controllers
254  DF  .~> Trolley-completed circuits
255  DF  .~> Car-wheel-completed circuits
256  DF  .~> Relays

DEFINITION

Classification: 246/218

(under the class definition) Systems and mechanism for the electrical actuation of switches, signals and other elements of the class.