US PATENT SUBCLASS 165 / 223
.~.~.~ Humidity sensor measures humidity of air in conditioned space

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.~.~.~ Humidity sensor measures humidity of air in conditioned space {3}
224  DF  .~.~.~.~> Additional humidity sensor (e.g., located outside of conditioned space, etc.)
225  DF  .~.~.~.~> Humidity sensor controls indirect-contact cooling means {3}
229  DF  .~.~.~.~> Humidity sensor controls humidifier

DEFINITION

Classification: 165/223

Humidity sensor measures humidity of air in conditioned space:

(under subclass 222) Subject matter including a first sensing means to determine the atmospheric water vapor content in the area to be heated or cooled.