US PATENT SUBCLASS 165 / 286
.~.~ Flow of one heat exchange material controlled by its own pressure

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}
286.~.~ Flow of one heat exchange material controlled by its own pressure

DEFINITION

Classification: 165/286

Flow of one heat exchange material controlled by its own pressure:

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