US PATENT SUBCLASS 165 / 253
.~.~ Temperature sensor controlling temperature

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}
253.~.~ Temperature sensor controlling temperature {4}
254  DF  .~.~.~> System selects heating or cooling mode automatically (e.g., responsive to season, ambient light, temperature in conditioned area, etc.) {5}
260  DF  .~.~.~> Variable rate of heating or cooling (e.g., plural stages, etc.) {1}
263  DF  .~.~.~> Area receives conditioning from simultaneously operated heating and cooling means (e.g., opposed and compensating heating and cooling, etc.) {1}
265  DF  .~.~.~> Manual changeover between heating and cooling modes (e.g., manual override, etc.)

DEFINITION

Classification: 165/253

Temperature sensor controlling temperature:

(under subclass 201) Subject matter including a sensing means for sensing temperature in said area and controlling said system in responsive to said sensed temperature.

SEE OR SEARCH CLASS

236, Automatic Temperature and Humidity Regulation, appropriate subclasses for automatic temperature and humidity control mechanisms.