Apparatus and method for producing structures with multiple undercut stems

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United States of America Patent

PATENT NO 8480943
APP PUB NO 20110121488A1
SERIAL NO

12927051

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Abstract

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A method is disclosed for producing structures having a plurality of stems extending away from a fenestrated base to undercut islands projecting over fenestrations in the base. Such structures include slidingly-engaging fastener portions, self-engaging fasteners, uni-directional stepped fasteners, fastening segments integral with larger product components, and other structures with similar aspects. The method includes providing a set of partially bypassing dies to define a fenestrated common cavity contiguous with pluralities of undercut stem chambers and a terminal chamber, filling the cavity with a ductile moldable material, engaging the dies, and releasing the resultant product.

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Patent Owner(s)

Patent OwnerAddress
DUFFY LEONARD ARNOLDNot Provided

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Duffy, Leonard Arnold Hinesburg, US 7 25

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