US PATENT SUBCLASS 34 / 581
.~.~.~ Suction conveyor

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}
580  DF  .~.~ With additional conveying means {1}
581.~.~.~ Suction conveyor

DEFINITION

Classification: 34/581

Suction conveyor:

(under subclass 580) Subject matter wherein the additional conveying means uses a vacuum.