US PATENT SUBCLASS 392 / 432
.~.~ Radiant extended surface type heater

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

*  DD  HEATING DEVICES (CLASS 219 SUBCLASS 200) {11}
407  DF  .~ Radiant heater {10}
432.~.~ Radiant extended surface type heater {2}
433  DF  .~.~.~> With exposed radiant heating element {1}
435  DF  .~.~.~> With heat radiating panel {2}

DEFINITION

Classification: 392/432

Radiant extended surface type heater:

(under subclass 407) Subject matter wherein the radiant heater comprises a wide or enlarged surface for emitting radiation as a broad beam.

SEE OR SEARCH CLASS

165, Heat Exchange,

49, for radiant building panel; subclasses 168+ for conduit within, or conforming to, panel or wall structure; and subclasses 172+ for side-by-side tubular structure or tube sections.

219, Electric Heating,

213, for static structure.

338, Electrical Resistors,

283+, for zigzag or sinuous resistance element; subclasses 306+ for base extending along resistance element; subclasses 315+ for mounting or supporting means; and subclass 321 for resistance element cores and frames. 373, Industrial Electric Heating Furnaces,

127, 134 for having resistance encasement means.

432, Heating,

31, for heating of or by wall or radiant surface.