US PATENT SUBCLASS 159 / 9.1
.~.~.~ Rotary drum or disk

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.~.~.~ Rotary drum or disk {2}
9.2  DF  .~.~.~.~> Treated material inside drum
10  DF  .~.~.~.~> Exterior surface

DEFINITION

Classification: 159/9.1

Rotary drum or disk:

(under subclass 8) Apparatus in which the moving support carrying the film is a rotary drum or disk.

SEE OR SEARCH CLASS

261, Gas and Liquid Contact Apparatus,

83+, for contact devices having a rotary movement.