US PATENT SUBCLASS 335 / 266
.~.~ Plural coils or magnets control armature movement

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}
266.~.~ Plural coils or magnets control armature movement {2}
267  DF  .~.~.~> With plural armatures
268  DF  .~.~.~> Coils or magnets being separately or selectively controllable

DEFINITION

Classification: 335/266

(under subclass 220) Subject matter wherein the electromagnets includes plural coils or magnets arranged to operate at least one armature.

(1) Note. For classification in this subclass and the indented subclasses, the movement of at least one armature is controlled by the magnetic flux produced by two or more coils or magnets.

SEE OR SEARCH THIS CLASS, SUBCLASS:

8+, for multipole or polyphase automatic circuit breakers.

92, for periodic switches with plural actuating magnets.

102, for polyphase alternating current type switches.

103, for alternating current switches with plural flux sources. 136+, for multiple contact switches with plural magnet or coil means.

149, for electrodynamically actuated switches with plural

coils.

177+, for switches with plural magnets or flux sources.

207, for switches with plural permanent magnets.

229+, for electromagnet and permanent magnet with armature.

246, for alternating current electromagnet with plural flux displacement windings.

256, for electromagnets with plural plunger type armatures.

SEE OR SEARCH CLASS

361, Electricity: Electrical Systems and Devices,

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