Roll for paper-making machine
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Sep 23, 2003
Grant Date -
May 23, 2002
app pub date -
Jan 22, 2002
filing date -
Feb 25, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A paper-making machine includes a traveling substrate and a roll carrying the substrate. The roll includes a carbon fiber shell, a ceramic layer over the shell, and a polytetrafluoroethylene layer over the ceramic layer. The polytetrafluoroethylene layer defines an outer surface of the roll. The ceramic layer intermittently extends through the polytetrafluoroethylene layer to the outer surface of the roll.
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