Apparatus for processing permeable or semi-permeable webs

Drying and gas or vapor contact with solids – Apparatus – Rotary drums or receptacles

Reexamination Certificate

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Details

C034S124000, C162S204000, C162S358100

Reexamination Certificate

active

07040038

ABSTRACT:
An air processing cylinder useful in drying, curing, thermal bonding, cooling, and web transferring materials such as fabrics, papers, and the like. Air is exhausted out of the cylinder surface through a plurality of conduits equipped with distribution means for profiling the flow of air. The drying cylinder further includes a duct network on its outer shell for exhausting air out of one axial area only or, alternatively, the drying cylinder may contain multiple duct networks for exhausting air out of several axial areas, each having its own flow characteristics.

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patent: 4523390 (1985-06-01), McCarthy
patent: 4542596 (1985-09-01), Bryand et al.
patent: 4556450 (1985-12-01), Chuang et al.
patent: 5020242 (1991-06-01), Mayer
patent: 5546675 (1996-08-01), McGraw
patent: 5575084 (1996-11-01), Vuorinen
patent: 5775002 (1998-07-01), Iwase et al.
patent: 5974684 (1999-11-01), Steiner
patent: 6044575 (2000-04-01), Marschke
patent: 6585139 (2003-07-01), Holtmann

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