US PATENT SUBCLASS 373 / 29
.~ Joule effect heating

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

27  DF  GLASS FURNACE DEVICE {2}
29.~ Joule effect heating {4}
30  DF  .~.~> Furnace body detail {1}
33  DF  .~.~> Charging or discharging {2}
36  DF  .~.~> Electrode assembly {2}
39  DF  .~.~> Electrical system {2}

DEFINITION

Classification: 373/29

Joule effect heating:

(under subclass 27) Subject matter wherein the glass is melted, or maintained in a molten condition by passing an electric current therethrough between at least two electrodes.

SEE OR SEARCH CLASS

266, Metallurgical Apparatus,

104, for treating a continuum of work by joule effect heating means.