US PATENT SUBCLASS 165 / 285
.~.~ Flow of one heat exchange material controlled by the pressure of another

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}
281  DF  .~ Fluid pressure responsive or control {3}
285.~.~ Flow of one heat exchange material controlled by the pressure of another

DEFINITION

Classification: 165/285

Flow of one heat exchange material controlled by the pressure of another:

(under subclass 281) Subject matter wherein the heat transfer apparatus has first and second fluids flowing through it and the amount of the first fluid flowing through the heat transfer apparatus is controlled by the pressure of the second fluid.