US PATENT SUBCLASS 165 / 299
.~.~ Flow of one heat exchange material controlled by temperature of another

Current as of: June, 1999
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165 /   HD   HEAT EXCHANGE

200  DF  WITH TIMER, PROGRAMMER, TIME DELAY, OR CONDITION RESPONSIVE CONTROL {14}
287  DF  .~ Temperature responsive or control {5}
299.~.~ Flow of one heat exchange material controlled by temperature of another

DEFINITION

Classification: 165/299

Flow of one heat exchange material controlled by temperature of another:

(under subclass 287) Subject matter wherein the heat transfer apparatus has first and second fluids flowing through it and the amount of the first fluid flowing through the heat transfer apparatus is controlled by the temperature of the second fluid.

SEE OR SEARCH CLASS

236, Automatic Temperature and Humidity Regulation, appropriated subclasses for automatic temperature and humidity control devices.