US PATENT SUBCLASS 34 / 181
.~.~ With gas or vapor flow 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}
179  DF  .~ Stationary receptacle or tube with agitator or conveyor {3}
181.~.~ With gas or vapor flow for contact with treated material {1}
182  DF  .~.~.~> Axial treated material feed type

DEFINITION

Classification: 34/181

(under subclass 179) Apparatus including means to contact the material undergoing treatment with a gas or vapor.

SEE OR SEARCH CLASS

432, Heating,

139, for a heater in which material is moved or agitated in a stationary receptacle to which combustion products are fed from a combustion products generator.