Inlet and outlet plenum apparatus for uniform delivery of fiber to a pad former
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United States of America Patent
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Nov 16, 1999
Grant Date -
N/A
app pub date -
Apr 29, 1998
filing date -
Apr 29, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention provides an inlet and outlet plenum apparatus for improving the forming of fibrous pads for absorbent products and providing improved density control. Fibers entrained in a high speed air flow coming from a fiberizer or other fiber source enter an inlet plenum which reduces velocity by increasing the area of the inlet plenum in a linear manner thereby decreasing turbulence and improving the density distribution of the fiber deposited onto the foraminous surface of a pad-former screen. The outlet plenum allows for a controlled velocity increase which reduces under-screen turbulence and further improves fiber distribution and density control.
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