Advancing material of indeterminate length – With material-responsive control means – To regulate longitudinal movement of material
Reexamination Certificate
2011-04-19
2011-04-19
Mansen, Michael R (Department: 3654)
Advancing material of indeterminate length
With material-responsive control means
To regulate longitudinal movement of material
C226S029000, C226S042000, C226S044000, C226S111000, C226S117000, C226S118300, C242S418100
Reexamination Certificate
active
07926688
ABSTRACT:
A web processing assembly including first, second and third fixed spaced apart pairs of nip rollers moving the web respectively at a first, second and third speeds, the first and third speeds being constant and similar, the second speed being variable with a mean speed similar to the first and third speeds, a first idler roller engaging the web between the first and second pair of rollers and a second idler roller engaging the web between the second and third pair of rollers, each idler roller maintaining the web in constant tension by moving along a restrained path perpendicular to its axis to compensate for a difference between the variable second speed and the respective one of the constant first and third speeds. A method for processing a web and system for conveying a web are also disclosed.
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Dupuis Louis
Hoge Ross
Koehler James
Durst Phototechnik AG
Haugland Scott
Mansen Michael R
Ostrolenk Faber LLP
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