US PATENT SUBCLASS 392 / 483
.~.~.~ Heating element producing radiation

Current as of: June, 1999
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392 /   HD   ELECTRIC RESISTANCE HEATING DEVICES

*  DD  HEATING DEVICES (CLASS 219 SUBCLASS 200) {11}
465  DF  .~ Continuous flow type fluid heater {12}
479  DF  .~.~ Externally heated line connected section {4}
483.~.~.~ Heating element producing radiation

DEFINITION

Classification: 392/483

Heating element producing radiation:

(under subclass 479) Subject matter wherein the the external heater has an electrical resistance heating element which emits heat in the form of electromagnetic waves within the infrared range of spectrum.

SEE OR SEARCH THIS CLASS, SUBCLASS:

355, for intermediate heat absorber

391, for vaporizer using radiant heat source.

407+, for radiant heater.

460, for external heater producing radiation.

468, for pipeline tracing. 470, for disposable cartridge, tube or bag forming flow path.

SEE OR SEARCH CLASS

126, Stoves and Furnaces,

344+, for water heaters and subclasses 569+ for solar heat collector.

165, Heat Exchange,

133, for coated, roughened or polished surface.

219, Electric Heating,

600+, for inductive heating, note subclass 628 for heat exchange by fluid or liquid, and subclasses 678+ for microwave heating, note subclass 687 for a fluid heater.