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Class Information
Number: 34/460
Name: Drying and gas or vapor contact with solids > Process > Gas or vapor contact with treated material > Sheet, web, or strand > Running length of treated material > Gas or vapor suspends treated material
Description: Process wherein the sheet, web, or strand is conveyed on a cushion of gas or vapor.

Sub-classes under this class:

Class Number Class Name Patents
34/461 Gas or vapor directed to opposed surfaces of material 25

Patents under this class:

Patent Number Title Of Patent Date Issued
8113761 Support platform of non-contact transfer apparatus Feb. 14, 2012
7125473 Apparatus and method for conditioning a web on a papermaking machine Oct. 24, 2006
6877250 Apparatus, method and system for the treatment of a wafer Apr. 12, 2005
6560896 Apparatus, method and system for the treatment of a wafer May. 13, 2003
6511708 Controlling float height of moving substrate over curved plate Jan. 28, 2003
6493962 Drying section Dec. 17, 2002
6192602 Method for contact-free drying of a paper web or equivalent Feb. 27, 2001
6189237 Process for drying a web Feb. 20, 2001
6108936 Method and device for contact-free drying of a paper web or equivalent Aug. 29, 2000
6076280 Method and device for drying a fiber web Jun. 20, 2000
5829166 Air-cushion nozzle for drying apparatus Nov. 3, 1998
5621983 Apparatus and method for deckeling excess air when drying a coating on a substrate Apr. 22, 1997
5575084 Method and device for drying or cooling a paper web Nov. 19, 1996
5570519 Method and device in contact-free treatment of a web Nov. 5, 1996
5522157 Apparatus and method for drying stacks of sheet material Jun. 4, 1996
5303484 Compact convective web dryer Apr. 19, 1994
5299364 Arrangement and method for treatment of webs using nozzles with negative pressure Apr. 5, 1994
5172844 Method and apparatus for reducing a transporting strain on elongated material passing through a treatment chamber Dec. 22, 1992
4982512 Vapor recovery system Jan. 8, 1991
4918795 Method to soften fabric by air impingement Apr. 24, 1990
4137644 Treating airborne web material Feb. 6, 1979

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