US PATENT SUBCLASS 335 / 16
.~.~.~ Magnetic or electrodynamic (e.g., blowon or blowoff)

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

2  DF  ELECTROMAGNETICALLY ACTUATED SWITCHES {30}
6  DF  .~ Automatic circuit-interrupting devices (e.g., circuit-protective devices) {12}
15  DF  .~.~ With contact biasing, holding or pressure control means {1}
16.~.~.~ Magnetic or electrodynamic (e.g., blowon or blowoff)

DEFINITION

Classification: 335/16

(under subclass 15) Subject matter wherein the significant biasing, holding or pressure control means consists of either a magnet or other device which depends for its operation on the reaction between current in one part of an electric circuit and the current in another part, such as a current loop for creating electrodynamic forces tending to separate or close the relatively movable contacts.