Single facer with small intermediate corrugating roll
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United States of America Patent
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May 13, 1997
Grant Date -
N/A
app pub date -
Mar 26, 1996
filing date -
Mar 26, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The labyrinth path in the corrugating nip of a single facer is substantially reduced by utilizing a small diameter intermediate corrugating roll captured between a pair of larger diameter conventional corrugating rolls. The two large diameter rolls capture the smaller roll and prevent bending thereof under corrugating loads. The corrugator may be operated at high speeds without the adverse increase in labyrinth path and web tension characteristic of large diameter corrugating rolls.
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