US PATENT SUBCLASS 261 / 155
.~.~ Contact fluid passage surrounds external fluid flow passage

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

127  DF  WITH EXTERNAL SUPPLY OR REMOVAL OF HEAT {14}
152  DF  .~ Heat exchange means at or downstream of contact zone {5}
155.~.~ Contact fluid passage surrounds external fluid flow passage

DEFINITION

Classification: 261/155

(under subclass 152) Apparatus wherein a passage of the heat exchanger forming a flow path for external fluid is within a chamber forming a part of the contact fluid flow path.