US PATENT SUBCLASS 246 / 237
.~.~.~ Fly-back

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}
237.~.~.~ Fly-back {2}
238  DF  .~.~.~.~> Latch or clutch release
239  DF  .~.~.~.~> Switches

DEFINITION

Classification: 246/237

(under subclass 225) Subject matter in which the elements

actuated are set and held against gravity or a spring, which restores them to their original position upon the cessation of current.

SEE OR SEARCH THIS CLASS, SUBCLASS:

238, 239, 243, 244, 290, 291, and 310 to 321, for other fly-back systems in this class.