US PATENT SUBCLASS 335 / 269
.~.~ With dynamically balanced 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}
269.~.~ With dynamically balanced armature

DEFINITION

Classification: 335/269

(under subclass 220) Subject matter including: armature mounting means; means forming part of the armature; means operating with the armature or a combination of these means to balance the armature so that it is insensitive to acceleration or deceleration.

SEE OR SEARCH THIS CLASS, SUBCLASS:

46, for automatic circuit interrupter with contact rebound or other undesirable motion prevention means.

157+, for switches with shock resistant means.

193, for switches with contact vibration, bounce or chatter prevention means.

257, for plunger type armatures with shock absorbing means.

271, for armature mounting means with vibration preventing means. 277, for electromagnets constructed or mounted to prevent shock, vibration or bounce.