US PATENT SUBCLASS 335 / 256
.~.~.~ Plural coils controlling a single armature

Current as of: June, 1999
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335 /   HD   ELECTRICITY: MAGNETICALLY OPERATED SWITCHES, MAGNETS, AND ELECTROMAGNETS

209  DF  MAGNETS AND ELECTROMAGNETS {10}
220  DF  .~ With magneto-mechanical motive device (e.g., electromagnet with armature) {21}
255  DF  .~.~ With plunger-type armature {6}
256.~.~.~ Plural coils controlling a single armature

DEFINITION

Classification: 335/256

(under subclass 255) Subject matter wherein the electromagnet has plural coils that control a single plunger type armature.

(1) Note. The plural coils may be separately energized or may be simultaneously energized.

(2) Note. The plural coils may be arranged so that the armature is moved in one direction or the other, depending upon which coil is energized.

SEE OR SEARCH THIS CLASS, SUBCLASS:

266+, for nonplunger type armature controlled by plural coils.

SEE OR SEARCH CLASS 310, Electrical Generator or Motor Structure,

34+, for dynamoelectric devices with plunger controlled by plural coils.

361, Electricity: Electrical Systems and Devices,

210, for control circuits for relays and electromagnets with plural coils.