US PATENT SUBCLASS 62 / 534
.~.~.~ Liquid refrigerant converted to vapor phase during cooling

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  DF  .~.~ Including direct contact with added refrigerant {2}
534.~.~.~ Liquid refrigerant converted to vapor phase during cooling {1}
535  DF  .~.~.~.~> Spent refrigerant vapor used in direct contact to melt solidified component or heat product liquid

DEFINITION

Classification: 62/534

(under subclass 533) Processes wherein a refrigerant liquid is converted in whole or part to the vapor state while cooling a solution or mixture in direct contact therewith.