US PATENT SUBCLASS 585 / 911
.~ Introducing, maintaining, or removing heat by atypical procedure

Current as of: June, 1999
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585 /   HD   CHEMISTRY OF HYDROCARBON COMPOUNDS

*  DD  HEAT CONSIDERATIONS {2}
911.~ Introducing, maintaining, or removing heat by atypical procedure {3}
912  DF  .~.~> Molten material
913  DF  .~.~> Electric
914  DF  .~.~> Phase change, e.g., evaporation, etc.

DEFINITION

Classification: 585/911

Introducing, maintaining, or removing heat by atypical procedure:

Collection of documents (under unnumbered subclass HEAT CONSIDERATIONS) disclosing the heating of a material, the cooling of a material, or the prevention of either, using a fuel, refrigerant, heat-exchange material, procedural step, etc., which is not standard industrial practice.

(1) Note. The following is a summary of Patent and Trademark Office classes concerned with changing temperature or preventing temperature change.

SEE OR SEARCH CLASS

62, Refrigeration.

110, Furnaces

122, Liquid Heaters and Vaporizers.

126, Stoves and Furnaces. 165, Heat Exchange.

219, Electric Heating.

236, Automatic Temperature and Humidity Regulation.

237, Heating Systems.

373, Industrial Electric Heating Furnaces.

431, Combustion.

432, Heating.