Headbox apparatus for a papermaking machine
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United States of America Patent
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Sep 14, 2010
Issued Date -
N/A
app pub date -
Dec 19, 2006
filing date -
Jan 30, 2006
priority date (Note) -
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Abstract
A headbox apparatus is disclosed for a papermaking machine. The headbox apparatus defines a flow path for stock flowing between an upstream header and a downstream slice lip. The apparatus includes a plurality of elements which are anchored within the flow path between the header and the slice lip. Each element and an adjacent element of the plurality of elements defines therebetween a flow tube for the flow therethrough of the stock. The flow tube has an upstream portion and a downstream portion that gradually widens in a direction from the header to the slice lip.
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