Papermaking apparatus with variable pulse turbulation blades
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United States of America Patent
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-
Sep 3, 2002
Issued Date -
N/A
app pub date -
Jul 27, 2001
filing date -
Jun 23, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Papermaking apparatus is disclosed having variable dewatering devices with moveable elements which engage the conveyor carrying paper stock and are adjustable to vary their operating characteristics. A variable pulse turbulation blade with an adjustable in-going angle is provided with a cam-operated adjustment device that maintains the blade height constant while adjusting the in-going angle to prevent fiber clumps and to provide the paper sheet with a more uniform consistency. The turbulation blade may have a plurality of flats disposed at different angles or multiple radii on its leading portion.
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