US PATENT SUBCLASS 219 / 530
.~.~ With heat storage or transfer means (vanes)


Current as of: June, 1999
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219 /   HD   ELECTRIC HEATING

200  DF  HEATING DEVICES {14}
520  DF  .~ With heater-unit housing, casing, or support means (e.g., frame and single sheet) {13}
530.~.~ With heat storage or transfer means (vanes)


DEFINITION

Classification: 219/530

(under subclass 520) Subject matter wherein the significant housing, casing or support structure includes means whereby heat energy is stored or is transferred to a material or object to be heated. The transfer of the heat energy may be conduction or radiation, as by a reflector, or convection.

SEE OR SEARCH THIS CLASS, SUBCLASS:

258, for sole plate pressure application heating devices (sad irons) with heat storage or transfer means.

276, for vaporizers with heat transfer means.

302, for forced circulation heater with heat storage.

325+, for liquid heaters with heat storage or exchange means.

341, for radiant fluid heaters with heat storage or transfer means. 365, for convection heaters with heat transfer or storage means.

378, for fluid heaters with heat storage means.

399+, for ovens combined with heat transfer distribution or accumulator means.

430, for a vessel and stand combined with heat storage or transfer means.

439, for a vessel alone combined with heat storage or transfer means.

462, for electrical hot plates with heat storage or transfer means.

540, for a heating unit structure per se with heat storage or exchange means.

SEE OR SEARCH CLASS

126, Stoves and Furnaces,

400, for heat accumulator structure in general.

165, Heat Exchange, appropriate subclasses for heat transfer or exchange means in general. 338, Electrical Resistors,

59, for resistors, per se, combined with heat storing means.