US PATENT SUBCLASS 159 / 24.1
.~.~ Regenerative

Current as of: June, 1999
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159 /   HD   CONCENTRATING EVAPORATORS

22  DF  CLOSED EVAPORATING CHAMBERS {4}
23  DF  .~ Indirectly heated {4}
24.1.~.~ Regenerative {1}
24.2  DF  .~.~.~> Heat recovery or regeneration {1}

DEFINITION

Classification: 159/24.1

Regenerative:

(under subclass 23) Closed vessels in which the temperature of the vapors evolved by the evaporation is raised, and the vapors are employed to produce further evaporation.