US PATENT SUBCLASS 165 / 73
.~ Cover is, or carries, heat exchanging means

Current as of: June, 1999
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165 /   HD   HEAT EXCHANGE

72  DF  COVERED ACCESS OPENING {2}
73.~ Cover is, or carries, heat exchanging means {1}
74  DF  .~.~> Heat exchanging means projects into the covered chamber

DEFINITION

Classification: 165/73

(under subclass 72) Apparatus in which material within or flowing to or from the apparatus having the removable covering section is heated or cooled by the removable section or by a device supported by the section.

SEE OR SEARCH CLASS

202, Distillation: Apparatus,

243, for a closure for a still or retort cooled by a fluid within or flowing through the closure.