US PATENT SUBCLASS 34 / 577
.~.~ Downward fluid flow impinging solid floor

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

523  DF  APPARATUS {40}
576  DF  .~ With fluid current conveying of treated material {12}
577.~.~ Downward fluid flow impinging solid floor

DEFINITION

Classification: 34/577

Downward fluid flow impinging solid floor:

(under subclass 576) wherein a fluidizing current is in a downward direction where it impacts a hard surface and reflects up through the material.