US PATENT SUBCLASS 219 / 495
.~.~.~.~ Thermomagnetic

Current as of: June, 1999
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219 /   HD   ELECTRIC HEATING

200  DF  HEATING DEVICES {14}
482  DF  .~ With power supply and voltage or current regulation or current control means {4}
490  DF  .~.~ Automatic regulating or control means {11}
494  DF  .~.~.~ Thermally responsive {1}
495.~.~.~.~ Thermomagnetic

DEFINITION

Classification: 219/495

(under subclass 494) Subject matter compromising or including magnetic apparatus which is adapted to change its permeability, (magnetic characteristics with change of temperature).

SEE OR SEARCH CLASS

310, Electrical Generator or Motor Structure,

306, for the structure of pyromagnetic devices in general.

335, Electricity: Magnetically Operated Switches, Magnets, and Electromagnets,

146, for electromagnetically actuated switches utilizing thermomagnetic devices.

361, Electricity: Electrical Systems and Devices, 161+, for electromagnetic control circuits including a thermal device, and subclass 211 includes control circuits for thermal relays.