US PATENT SUBCLASS 34 / 223
.~.~.~.~ Plural gas or vapor forcing means


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}
218  DF  .~.~ With gas or vapor circulation for contact with treated material {8}
219  DF  .~.~.~ Recirculation of treating gas or vapor {5}
223.~.~.~.~ Plural gas or vapor forcing means


DEFINITION

Classification: 34/223

(under subclass 219) Apparatus including more than one means for forcing the flow of the treating gas or vapor.

(1) Note. Complete the search in this class, subclasses 191, 203 and indented subclasses, particularly subclass 207, and subclasses 212, 213, 226, and 230 and see notes thereto. Subclass 191 includes plural reversible blowers or plural blowers with means for causing a reverse flow.