US PATENT SUBCLASS 165 / 262
.~.~.~.~.~ Timer


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}
260  DF  .~.~.~ Variable rate of heating or cooling (e.g., plural stages, etc.) {1}
261  DF  .~.~.~.~ Sequentially activated heat sources or cool sources {1}
262.~.~.~.~.~ Timer


DEFINITION

Classification: 165/262

Timer:

(under subclass 261) Subject matter wherein said plurality of heating or cooling means are operated by a means for measuring or recording time, or by a device for controlling the heat transfer apparatus at a predetermined time.