US PATENT SUBCLASS 34 / 75
.~.~.~ Direct contact with cooling substance

Current as of: June, 1999
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34 /   HD   DRYING AND GAS OR VAPOR CONTACT WITH SOLIDS

523  DF  APPARATUS {40}
72  DF  .~ With means to treat gas or vapor {3}
73  DF  .~.~ By vapor condensation {4}
75.~.~.~ Direct contact with cooling substance

DEFINITION

Classification: 34/75

(under subclass 73) Apparatus in which the vapors directly contact the cooling substance such as cold water or ice.

SEE OR SEARCH THIS CLASS, SUBCLASS:

72, 74, 83, and 84, for other devices for contacting treating gases or vapors with liquids.

SEE OR SEARCH CLASS

261, Gas and Liquid Contact Apparatus,

75+, for vapor condensers of the direct contact type; and subclass 140 for contact apparatus of general utility with a refrigeration producer.