US PATENT SUBCLASS 335 / 279
.~.~ Armature shape, structure or material

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}
279.~.~ Armature shape, structure or material {1}
280  DF  .~.~.~> Balls, filings or granular material

DEFINITION

Classification: 335/279

(under subclass 220) Subject matter including significant details of the armature shape, structure or material.

SEE OR SEARCH THIS CLASS, SUBCLASS:

55+, for conductive liquid type switches with significant armature structure.

80+, for polarity responsive switches with armature structure.

95+, for periodic switch armature structure.

124, for multiple contact switches with significant armature structure.

203, for switches with significant armature structure. 249, for armature structure to prevent chatter or noise.

261+, for electromagnets with plunger type armature structure.