Plastic corner bead and trim and method of manufacture
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United States of America Patent
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-
Feb 17, 2004
Grant Date -
N/A
app pub date -
Apr 24, 2002
filing date -
Jan 7, 2002
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A corner bead includes an elongated strip of plastic material with a central arcuate nose and a pair of flanges extending outwardly from the nose. The outward faces of the flanges have knurling formed thereon, to retain joint compound in place during dressing of the corner. In the preferred form of the invention, the knurling is in the form of diamond-shaped depressions formed uniformly across the length and width of the flange outward faces. The method of forming the knurled surface in the bead includes the step of forming separate depressions in an outer face of a flange of the bead immediately after the extrusion process, prior to the material cooling.
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