US PATENT SUBCLASS 246 / 231
.~.~.~ Opposed magnets

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

218  DF  ELECTRIC ACTUATION {9}
221  DF  .~ Motor systems {5}
225  DF  .~.~ Reciprocating armature {4}
231.~.~.~ Opposed magnets {3}
232  DF  .~.~.~.~> Circuit changers
233  DF  .~.~.~.~> Tandem contacts, switches
234  DF  .~.~.~.~> Parallel contacts, switches {1}

DEFINITION

Classification: 246/231

(under subclass 225) Subject matter in which an armature or double core moves between two opposed electromagnets or solenoids.

SEE OR SEARCH THIS CLASS, SUBCLASS:

227+, for similar subject matter having controller-actuated switches.