US PATENT SUBCLASS 62 / 533
.~.~ Including direct contact with added refrigerant

Current as of: June, 1999
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62 /   HD   REFRIGERATION

56  DF  PROCESSES {28}
532  DF  .~ Fractionally solidifying a constituent and separating the same {8}
533.~.~ Including direct contact with added refrigerant {2}
534  DF  .~.~.~> Liquid refrigerant converted to vapor phase during cooling {1}
536  DF  .~.~.~> Refrigerant remains liquid during cooling

DEFINITION

Classification: 62/533

(under subclass 532) Processes wherein a solution or mixture of constituents is cooled sufficiently to solidify a constituent which is then removed from the mixture wherein the cooling of the solution or mixture is accomplished by direct contact with an added solid, liquid or gaseous material which is at a lower temperature.

(1) Note. Solid refrigerant is not intended to refer to cooling by a heat exchanger such as a regenerator but is intended to encompass a cooling process wherein a cooled solid such as shot is added to the solution or mixture to be cooled.

SEE OR SEARCH THIS CLASS, SUBCLASS:

532, for refrigeration by indirect heat exchange with a refrigerant.

537, for refrigeration accomplished by evaporation of a portion of the feed mixture or solution.

543, for refrigeration accompanied by pulsation of the solution or mixture.