US PATENT SUBCLASS 335 / 92
.~.~.~ Plural magnets

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

2  DF  ELECTROMAGNETICALLY ACTUATED SWITCHES {30}
87  DF  .~ Periodic (e.g., vibrators) {6}
91  DF  .~.~ Actuating magnet structure or material {1}
92.~.~.~ Plural magnets

DEFINITION

Classification: 335/92

(under subclass 91) Subject matter wherein the magnetic structure includes at least two or more distinct magnetic means which may or may not be of diverse type and each of which performs its particular function independently of the other. For example, one magnetic means may consist of fluctuating magnetic field generating means for actuating an armature or reed while the other consists of a permanent magnet providing a biasing means for the armature or reed.

SEE OR SEARCH THIS CLASS, SUBCLASS:

177+, below, for other electromagnetic switches utilizing plural magnets.

266+, for magnets or electromagnets and armatures with plural coils or magnets.

306, for the structure of plural permanent magnets, per se.