Apparatus and method for producing structures with multiple undercut stems

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United States of America Patent

PATENT NO 7828545
APP PUB NO 20080018025A1
SERIAL NO

11879169

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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 ends. Such structures include slidingly-engaging fastener portions, hook-and-loop hook portions, self-engaging fastener portions, 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, filling the cavity with a moldable material, and ejecting the resultant product. The resultant product includes a plurality of undercut stems spaced away from a base with undersides projecting over fenestrations in the base.

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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 P.O. Box 99 7 25

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