US PATENT SUBCLASS 335 / 249
.~.~.~.~ Special armature construction or mounting means (e.g., to assure positive seating of 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}
243  DF  .~.~ Alternating current type {5}
247  DF  .~.~.~ With chatter- or noise-preventing means {2}
249.~.~.~.~ Special armature construction or mounting means (e.g., to assure positive seating of armature)

DEFINITION

Classification: 335/249

(under subclass 247) Subject matter wherein the armature is specially constructed or mounted to prevent vibration noise.

SEE OR SEARCH THIS CLASS, SUBCLASS:

257, for plunger type armatures with vibration preventing means.

271, for armature mounting means with vibrating preventing means.

277, for electromagnets specially mounted or enclosed to prevent shock or vibration.