US PATENT SUBCLASS 165 / 288
.~.~ Plural temperature sensors

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}
287  DF  .~ Temperature responsive or control {5}
288.~.~ Plural temperature sensors {6}
289  DF  .~.~.~> Means to maintain a constant temperature difference between a measured temperature and a controlled temperature
290  DF  .~.~.~> Temperature sensor within or near an area to be conditioned, another tempeerature sensor near the conditioning equipment (e.g., shallow/deep, etc.)
291  DF  .~.~.~> Temperature sensor inside conditioned space, another temperature sensor outdoor (e.g., indoor set point adjusted by outdoor conditions, etc.)
292  DF  .~.~.~> Temperature sensor in treated fluid, another temperature sensor in treating fluid
293  DF  .~.~.~> Temperature sensor prior to heat exchanger and one after
294  DF  .~.~.~> Branched flow of heat exchange material

DEFINITION

Classification: 165/288

Plural temperature sensors:

(under subclass 287) Subject matter wherein said control means is connected to more than one means to sense temperature.

SEE OR SEARCH CLASS

236, Automatic Temperature and Humidity Regulation,

78, for automatic temperature and humidity control devices associated with electric motors and having plural temperature sensors; subclass 80 for automatic temperature and humidity control devices associated with fluid operated motors and having plural temperature sensors; subclass 99 for automatic temperature and humidity control devices associated with system having expanding fluid and having external and internal sensors.