US PATENT SUBCLASS 266 / 152
.~.~ By indirect liquid heat exchange means

Current as of: June, 1999
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266 /   HD   METALLURGICAL APPARATUS

144  DF  WITH MEANS TREATING OR HANDLING GASES EXHAUSTED BY TREATING MEANS {8}
148  DF  .~ By condensing and collecting a volatile constituent {6}
152.~.~ By indirect liquid heat exchange means

DEFINITION

Classification: 266/152

(under subclass 148) Device wherein the vaporized material gives up its heat of vaporization to a body of liquid which is physically separated therefrom by a structural member, e.g., a wall, a tube, etc.