US PATENT SUBCLASS 34 / 210
.~.~.~ With gas or vapor circulation for contact with treated material


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

523  DF  APPARATUS {40}
201  DF  .~ Houses, kilns, and containers {6}
209  DF  .~.~ Plural treating units or compartments {1}
210.~.~.~ With gas or vapor circulation for contact with treated material {5}
211  DF  .~.~.~.~> Superposed floors or chambers
212  DF  .~.~.~.~> Recirculation of treating gas or vapor {1}
214  DF  .~.~.~.~> Parallel circulation only
215  DF  .~.~.~.~> With heater {1}
217  DF  .~.~.~.~> With conveyor and/or movable treated material support


DEFINITION

Classification: 34/210

(under subclass 209) Apparatus including means to contact the material treated with a treating gas or vapor.