Molding of fastening hooks and other devices
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United States of America Patent
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Nov 1, 2005
Grant Date -
Sep 12, 2002
app pub date -
Dec 21, 2000
filing date -
Jun 6, 1996
priority date (Note) -
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Abstract
Methods of forming mold cavities suitable for hook and loop fastening are disclosed, along with effective hook construction and hook and loop fastener products that have an ultrathin cross-section. Photochemical techniques are employed to form plates that define hook-form mold cavities, and, alternatively, chemical etching is employed following preforming of the cavities and machining. Hooks having three-dimensional tapers with enhanced loop engaging characteristics are disclosed. By utilization of special surface finishes and tolerances, hook fasteners, having ultrathin cross-sections are realized, that pave the way for practical use of touch fasteners in a wide range of new areas.
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