US PATENT SUBCLASS 34 / 430
.~.~.~ Gas or vapor flow to top and bottom of treated material

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

282  DF  PROCESS {24}
428  DF  .~ Cooling by gas or vapor contact {4}
429  DF  .~.~ Including conveyor {3}
430.~.~.~ Gas or vapor flow to top and bottom of treated material

DEFINITION

Classification: 34/430

Gas or vapor flow to top and bottom of treated material:

(under subclass 429) Process wherein gas or vapor is directed to upper and lower surfaces of conveyed, treated material.