US PATENT SUBCLASS 335 / 146
.~.~ Thermomagnetic (e.g., device whose magnetic permeability changes with temperature)

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

2  DF  ELECTROMAGNETICALLY ACTUATED SWITCHES {30}
141  DF  .~ With electrothermal-actuating means (e.g., expansible wire) {5}
146.~.~ Thermomagnetic (e.g., device whose magnetic permeability changes with temperature)

DEFINITION

Classification: 335/146

(under subclass 141) Subject matter wherein the electrothermal current responsive actuating means consists of a material whose magnetic characteristics vary with temperature. The magnetic means and thermal current responsive means may be one and the same or may be separate means.

SEE OR SEARCH THIS CLASS, SUBCLASS:

208, for permanent magnet actuated switches of the thermomagnetic type.

217, for magnets or electromagnets of the temperature responsive type.

296+, for significant magnetic structure which may be thermomagnetic.

SEE OR SEARCH CLASS

252, Compositions,

62.5, for special magnetic compositions.

310, Electrical Generator or Motor Structure,

306, for thermal or pyromagnetic motor or generator structure.