US PATENT SUBCLASS 373 / 32
.~.~.~.~ With heating between chambers

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

27  DF  GLASS FURNACE DEVICE {2}
29  DF  .~ Joule effect heating {4}
30  DF  .~.~ Furnace body detail {1}
31  DF  .~.~.~ Multi-chamber {1}
32.~.~.~.~ With heating between chambers

DEFINITION

Classification: 373/32

With heating between chambers:

(under subclass 31) Subject matter including heating means mounted in the passageway between the plural furnace sections, or including furnaces where the heating current flows between electrodes mounted one in each furnace section.