US PATENT SUBCLASS 165 / 284
.~.~.~.~ Differential pressure operated bypass

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


165 /   HD   HEAT EXCHANGE

200  DF  WITH TIMER, PROGRAMMER, TIME DELAY, OR CONDITION RESPONSIVE CONTROL {14}
281  DF  .~ Fluid pressure responsive or control {3}
282  DF  .~.~ Branched flow of heat exchange material {1}
283  DF  .~.~.~ Bypass of heat exchanger {1}
284.~.~.~.~ Differential pressure operated bypass

DEFINITION

Classification: 165/284

Differential pressure operated bypass:

(under subclass 283) Subject matter wherein the auxiliary passageway has a means to control flow through it which is responsive to the existence of a fluid pressure differential between an inlet and an outlet end of the auxiliary passageway.