US PATENT SUBCLASS 335 / 183
.~.~ Magnetic fields or torques acting alternately in opposite directions

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}
183.~.~ Magnetic fields or torques acting alternately in opposite directions

DEFINITION

Classification: 335/183

(under subclass 177) Subject matter wherein the torque generated by at least two magnetic flux sources act in opposition to each other or in opposite directions. The plurality of flux sources may be energized simultaneously or alternately whereby a contact actuating means may be operated first toward one position and then toward a second position as from open to closed and vice versa.

SEE OR SEARCH THIS CLASS, SUBCLASS:

266, for electromagnetic relays comprising plural coils adapted to be separately or selectively energized.