Method and apparatus for particulate removal from moving paper webs
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United States of America Patent
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Aug 18, 2015
Grant Date -
Dec 20, 2012
app pub date -
Jun 17, 2011
filing date -
Jun 17, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
A method for removing dust-carrying air from a moving paper web is disclosed. The method includes the steps of: providing a moving web, the web having a first side and a second side, the web moving at a sufficient rate to produce a boundary layer of adjacent dust-carrying air; providing a NACA duct, the NACA duct having an intake opening and walls that diverge in increasing cross-sectional area to an exhaust opening having greater cross sectional area than the intake opening; and submerging the intake opening into the boundary layer to scavenge dust-carrying air from the boundary layer.
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