US PATENT SUBCLASS 159 / 19
.~ Combined closed and open

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

17.1  DF  MULTIPLE EFFECTS {6}
19.~ Combined closed and open

DEFINITION

Classification: 159/19

(under subclass 17.1) Apparatus in which the liquid undergoing treatment is evaporated in both closed and open pans at unequal pressures.

SEE OR SEARCH THIS CLASS, SUBCLASS:

2.1+, for evaporators employing superheating and pressure release.

18, for superimposed multiple effect evaporators.

21, for combined open and closed pan evaporators.