US PATENT SUBCLASS 34 / 456
.~.~.~.~.~ Vacuum causes web to contact wire or felt


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

282  DF  PROCESS {24}
443  DF  .~ Gas or vapor contact with treated material {17}
444  DF  .~.~ Sheet, web, or strand {7}
454  DF  .~.~.~ With contact with heat exchanger (e.g., drum or roller) {2}
455  DF  .~.~.~.~ Pocket ventilator {2}
456.~.~.~.~.~ Vacuum causes web to contact wire or felt


DEFINITION

Classification: 34/456

Vacuum causes web to contact wire or felt:

(under subclass 455) Process wherein ventilation of the pocket creates a vacuum that causes the treated web to be urged into contact with or increases the contact pressure

between the web and its supporting wire or felt.