Method for manufacturing article with integrally formed hooks with shear at hook-bearing surface
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United States of America Patent
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Oct 21, 2008
Grant Date -
Aug 25, 2005
app pub date -
Feb 25, 2004
filing date -
Feb 25, 2004
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A molded article having a field of molded hooks formed integrally thereon is made in a mold in which the hook-forming cavities are on a surface of a retractable mold insert. The insert is retracted from the molded article prior to the article's release from the mold, so that the molded hooks do not experience excessive shear forces as the article is removed from the mold cavity. The invention is especially useful when the draft angle of the hook-bearing surface of the molded article is less than about 45.degree..
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