US PATENT SUBCLASS 165 / 61
.~ Heating and cooling of the same material

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


165 /   HD   HEAT EXCHANGE

58  DF  HEATING AND COOLING {3}
61.~ Heating and cooling of the same material {4}
62  DF  .~.~> Refrigerating system conversion
63  DF  .~.~> Refrigeration producer
64  DF  .~.~> Heat generator
65  DF  .~.~> Heater and cooler serially arranged {1}

DEFINITION

Classification: 165/61

(under subclass 58) Apparatus by which a material or its container can be both heated and cooled.

SEE OR SEARCH THIS CLASS, SUBCLASS:

254+, for automatic selection of heating or cooling.

259, for devices in which a single sensor controls both heating and cooling.

265, for manual selection of heating or cooling combined with automatic control of the condition modifier.

SEE OR SEARCH CLASS

34, Drying and Gas or Vapor Contact With Solids, 62+, for a drier or gas or vapor contact with solids apparatus having a means cooling the dried solids.

266, Metallurgical Apparatus,

121+, for metallurgical apparatus for treating solid metal with both heat and a liquid.

432, Heating,

77+, for a residual heating apparatus combined with structure for merely reducing the temperature of the heated work toward ambient temperature.