US PATENT SUBCLASS 373 / 121
.~.~.~ Salt bath heating

Current as of: June, 1999
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373 /   HD   INDUSTRIAL ELECTRIC HEATING FURNACES

109  DF  RESISTANCE FURNACE DEVICE {7}
117  DF  .~ With heating element detail {7}
120  DF  .~.~ Open circuit (e.g., charge internal resistance heating) {4}
121.~.~.~ Salt bath heating

DEFINITION

Classification: 373/121

Salt bath heating:

(under subclass 120) Subject matter wherein a salt is melted by passing electric current through it and the charge is

immersed in the salt and is heated by conduction, with the salt performing the dual function of resistance medium and heat-transfer medium.

SEE OR SEARCH CLASS

266, Metallurgical Apparatus,

107, and 120 for treatment of articles by immersion heating in a salt bath, or other molten material.