US PATENT SUBCLASS 396 / 571
.~ Heating, cooling, or temperature detecting

Current as of: June, 1999
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396 /   HD   PHOTOGRAPHY

564  DF  FLUID-TREATING APPARATUS {18}
571.~ Heating, cooling, or temperature detecting {6}
572  DF  .~.~> Temperature detecting or controlling of drying station
573  DF  .~.~> Having liquid bath or jacket
574  DF  .~.~> Processing vapor from source other than photographic medium
575  DF  .~.~> Thermal developing, controlling temperature of photographic medium or controlling of developing amount
576  DF  .~.~> Heating processing liquid before entry to treating station
577  DF  .~.~> Plural stations

DEFINITION

Classification: 396/571

Heating, cooling, or temperature detecting:

(under subclass 564) Subject matter with means for changing the temperature of the apparatus, fluid or material or sensing the thermal condition thereof.

(1) Note. This subclass includes a processing fluid tank combined with a thermostatically controlled heat exchanger for the fluid in the tank.

(2) Note. Mere recitation of elements which may inherently affect the temperature, such as a circulating water bath, is insufficient for placement in this subclass.

SEE OR SEARCH THIS CLASS, SUBCLASS:

, FOR 917, for a foreign art collection involving fluid-treating apparatus and temperature control.

SEE OR SEARCH CLASS

118, Coating Apparatus, 666, for automatic temperature control of coating apparatus.

126, Stoves and Furnaces,

374, for a water heater vessel with automatic control.

134, Cleaning and Liquid Contact With Solids,

56+, for automatic control of apparatus of that class.