Distribution unit for dry forming of web material
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United States of America Patent
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N/A
Issued Date -
Apr 18, 2002
app pub date -
Oct 8, 2001
filing date -
Apr 9, 1999
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The invention relates to a distribution unit to be used in dry forming of web material, the distribution unit comprising one or more screen pipes (1) into which a fiber material (3) intended for forming a web is blown, the fibers penetrating through jackets (2) of the screen pipes in order to be layered onto a wire, and the screen pipe(s) (1) being arranged to extend transversely over the wire; and a rotatable brush roller (4) arranged inside each screen pipe (1) in the axial direction thereof. In the invention, a blade wheel (5) is provided inside each screen pipe (1) near the end that is opposite to the end where the fiber material (3) is blown into the pipe, the blade wheel being arranged to blow in a direction opposite to the direction of flow (A) of the fiber material.
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