Method of making screen media and a screening passage therefore
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United States of America Patent
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Jun 8, 2004
Issued Date -
N/A
app pub date -
Oct 30, 2000
filing date -
May 29, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A screen media (200) for use in screening pulp slurry has a first side (204) and a second side (206). The pulp slurry is fed from the first side of the screen media to the second side of said screen media through a plurality of screening passages (205). Each said screening passage include a contour cut (210) formed in the first side, a back groove (208) formed in the second side, and a residual thickness (234) between the contour cut and the back groove. An elongate slot (235) is formed in the residual material, and the residual thickness has a substantially uniform thickness about the elongate slot. Where the slot extends completely through the residual material it defines a through-slit (236) through which slurry flows and is filtered.
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