US PATENT SUBCLASS 165 / 259
.~.~.~.~ Single temperature sensing means

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  DF  .~.~ 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}
259.~.~.~.~ Single temperature sensing means

DEFINITION

Classification: 165/259

Single temperature sensing means:

(under subclass 254) Subject matter wherein said switching means comprises only one temperature sensor.

SEE OR SEARCH CLASS

236, Automatic Temperature and Humidity Regulation,

1, for heating and cooling control devices.