US PATENT SUBCLASS 34 / 79
.~.~ Separation of substances from treating or exhaust gases or vapors

Current as of: June, 1999
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34 /   HD   DRYING AND GAS OR VAPOR CONTACT WITH SOLIDS

523  DF  APPARATUS {40}
72  DF  .~ With means to treat gas or vapor {3}
79.~.~ Separation of substances from treating or exhaust gases or vapors {2}
80  DF  .~.~.~> By absorbent {1}
82  DF  .~.~.~> By filter

DEFINITION

Classification: 34/79

(under subclass 72) Apparatus in which substances are separated from gases or vapors used to contact the material under going treatment, or from the evolved gases or vapors.

SEE OR SEARCH THIS CLASS, SUBCLASS:

576+, for fluid current conveyor type driers which are usually provided with means to separate the material from the treating, i.e., conveying gas or vapor.