Single facer with small intermediate corrugating roll
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United States of America Patent
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-
Sep 14, 1999
Issued Date -
N/A
app pub date -
May 13, 1997
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 corrugating roll captured between a larger diameter conventional corrugating roll and a backing roll arrangement. The smaller diameter corrugating roll is captured to 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 a pair of large diameter corrugating rolls.
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