US PATENT SUBCLASS 62 / 641
.~.~.~ Regenerating heat exchanger

Current as of: June, 1999
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62 /   HD   REFRIGERATION

600  DF  CRYOGENIC TREATMENT OF GAS OR GAS MIXTURE {4}
617  DF  .~ Separation of gas mixture {3}
640  DF  .~.~ Air {3}
641.~.~.~ Regenerating heat exchanger

DEFINITION

Classification: 62/641

Regenerating heat exchanger:

(under subclass 640) Subject matter wherein a constituent is solidified on the surface of a heat exchanger and later removed by reverse heat exchange operation.

SEE OR SEARCH THIS CLASS, SUBCLASS:

638, for a process including flow reversing to a cold accumulator.

909, for specific regenerator structure or materials for use in a regenerator.

SEE OR SEARCH CLASS

165, Heat Exchange,

4+, and 900 for regenerating heat exchangers, per se.