US PATENT SUBCLASS 335 / 180
.~.~ With common core or single armature

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

2  DF  ELECTROMAGNETICALLY ACTUATED SWITCHES {30}
177  DF  .~ Plural magnets or flux sources {5}
180.~.~ With common core or single armature {2}
181  DF  .~.~.~> Pivoted armature
182  DF  .~.~.~> Magnetic fields opposing (e.g., differential)

DEFINITION

Classification: 335/180

(under subclass 177) Subject matter wherein the structure includes a single core or armature common to at least two of the magnet means. The armature structure may comprise a single plunger reciprocally related to a plurality of coils or may be of the hinged or pivoted type actuated by the coils in common.

SEE OR SEARCH THIS CLASS, SUBCLASS:

92, for periodic switches employing a common armature, usually pivoted for alternate attraction and repulsion in two directions.

163, for plural switches with common magnet flux source.

256, for plural coil actuated plunger armature.

266, for electromagnetic devices employing plural coils controlling a single armature.