US PATENT SUBCLASS 34 / 301
.~.~.~ With additional material cooling by separate refrigeration means

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

282  DF  PROCESS {24}
284  DF  .~ Freeze-drying {3}
298  DF  .~.~ With gas or vapor treating {2}
301.~.~.~ With additional material cooling by separate refrigeration means

DEFINITION

Classification: 34/301

With additional material cooling by separate refrigeration means:

(under subclass 287) Process combined with use of an extra means for cooling the treated material in addition to the basic cooling means that produces cooling by the vaporization of liquid from the treated material.