US PATENT SUBCLASS 165 / 229
.~.~.~.~ Humidity sensor controls humidifier


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}
201  DF  .~ Having heating and cooling capability {13}
222  DF  .~.~ Humidity control {2}
223  DF  .~.~.~ Humidity sensor measures humidity of air in conditioned space {3}
229.~.~.~.~ Humidity sensor controls humidifier


DEFINITION

Classification: 165/229

Humidity sensor controls humidifier:

(under subclass 223) Subject matter wherein the humidity sensor controls a device to add moisture to the atmosphere in the area.

SEE OR SEARCH THIS CLASS, SUBCLASS:

60, for heating and cooling heat exchange apparatus having gas liquid contactor.

SEE OR SEARCH CLASS

62, Refrigeration,

171, for refrigeration system having gas liquid contact cooler.

122, Liquid Heaters and Vaporizers, appropriate subclasses for a closed liquid heating vessel with a heat generator. 126, Stoves and Furnaces, appropriate subclasses, for open liquid heating structures not equally adapted for cooling, for heating stoves, for means for the application of heat for house warming and cooking purposes, and for specialized accessories and elements of such means.

261, Gas and Liquid Contact Apparatus, appropriate subclasses for apparatus specially adapted to produce an intimate contact between gases and liquids to exchange properties or mutually modify conditions; particularly,

129+, for gas and liquid contact apparatus having temperature or humidity sensor; subclass 131 for gas and liquid contact apparatus having control of heat supply or heat effect.