US PATENT SUBCLASS 261 / 160
.~.~ With fluid at or downstream of contact zone

Current as of: June, 1999
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261 /   HD   GAS AND LIQUID CONTACT APPARATUS

158  DF  INDIRECT INTERCHANGE OR HEAT BETWEEN CONTACT FLUIDS {1}
159  DF  .~ Incoming fluid exchanges heat {1}
160.~.~ With fluid at or downstream of contact zone {1}
161  DF  .~.~.~> Incoming exchanging fluid is feed gas

DEFINITION

Classification: 261/160

(under subclass 159) Subject matter wherein the exchange is between a contact zone feed fluid and a fluid in or flowing from such zone.