US PATENT SUBCLASS 373 / 117
.~ With heating element detail

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

109  DF  RESISTANCE FURNACE DEVICE {7}
117.~ With heating element detail {7}
118  DF  .~.~> Resistance crucible
119  DF  .~.~> Wall contained
120  DF  .~.~> Open circuit (e.g., charge internal resistance heating) {4}
127  DF  .~.~> Having resistance encasement means
128  DF  .~.~> Mounting {2}
132  DF  .~.~> Non-metallic resistor {1}
134  DF  .~.~> Including resistor shape detail

DEFINITION

Classification: 373/117

With heating element detail:

(under subclass 109) Subject matter including specific features of the electrical resistance means.

(1) Note. These features include the shape, or composition of the resistance, the mounting means for, or the terminal means directly connected to the resistor, or the means rendering the resistance electrically conductive.

SEE OR SEARCH CLASS

219, Electric Heating,

50+, for resistance heating where the internal resistance of the work is the heating element; appropriate subclasses under subclasses 200+ for details of electrical resistance heating elements of general utility.

338, Electrical Resistors, appropriate subclasses for details of electrical resistance heating elements, per se.