US PATENT SUBCLASS 159 / 10
.~.~.~.~ Exterior surface

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

5  DF  FILM TYPE {4}
7  DF  .~ Moving-film support {1}
8  DF  .~.~ Gaseous current {1}
9.1  DF  .~.~.~ Rotary drum or disk {2}
10.~.~.~.~ Exterior surface

DEFINITION

Classification: 159/10

(under subclass 9.1) Apparatus in which the rotary drum or disk supports the film on its exterior surface.

SEE OR SEARCH CLASS

261, Gas and Liquid Contact Apparatus,

91+, for rotating impellers arranged to dip in liquid to effect gas and liquid contact.