US PATENT SUBCLASS 373 / 130
.~.~.~ Side wall

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}
128  DF  .~.~ Mounting {2}
130.~.~.~ Side wall {1}
131  DF  .~.~.~.~> With resistor element compression

DEFINITION

Classification: 373/130

Side wall:

(under subclass 128) Subject matter wherein the heating element is attached to a vertical wall of the furnace.

SEE OR SEARCH CLASS

219, Electric Heating,

424, for resistance heating elements combined with a container for the material being heated, where the resistance heating element either surrounds, or is embedded within the walls of the container.