Apparatus and method for producing structures with multiple undercut stems

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7828545
APP PUB NO 20080018025A1
SERIAL NO

11879169

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Importance

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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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First Claim

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Patent Owner(s)

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International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Duffy, Leonard Arnold P.O. Box 99 7 25

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Minnesota Mining and Manufacturing Company (1)
6054091 J hook-type hook strip for a mechanical fastener 75 1996
 
Other [Check patent profile for assignment information] (4)
5378522 Ready wrap 25 1992
5640744 Nested ridge strap connector apparatus 16 1995
5799378 Fastening system 8 1997
5983467 Interlocking device 44 1997
 
UBE INDUSTRIES, LTD. (1)
5242649 Molded calcium silicate articles and method for producing same 8 1991
 
YKK CORPORATION (4)
5067210 Surface-type fastener 95 1990
* 5393475 Method and apparatus for continuously producing an integrally molded double-sided surface fastener 48 1993
* 5913482 Integrally molded surface fastener 24 1998
6678924 Integral molded surface fastener, and continuous manufacturing method and continuous manufacturing apparatus therefor 14 2002
 
VELCRO BVBA (2)
5953797 Hook fasteners and methods of manufacture 73 1996
6248276 Fasteners and methods of making fasteners 31 1999
 
Clements Industries, Inc. (1)
4581792 Separable fastener 28 1983
 
3M INNOVATIVE PROPERTIES COMPANY (1)
6000106 Superimposed embossing of capped stem mechanical fastener structures 32 1998
 
NIFCO INC. (2)
5212853 Separable plastic fastener and method and apparatus for manufacturing thereof 89 1992
5460769 Method and apparatus for manufacturing a separable plastic fastener 15 1994
 
Jane Marie Flynn (1)
4862563 Securing strap and fastener 69 1987
 
VELCRO INDUSTRIES B.V. (3)
4775310 Apparatus for making a separable fastener 144 1986
6187247 Injection molding parts with fastener elements 24 1998
6224364 Injection molding products having fastener elements 17 1998
 
APLIX, S.A. (3)
5368549 Method for injection-molding an orthopedic device and product of the method 90 1993
5656226 Method and apparatus for injection-molding a thermoplastic device 46 1996
RE37338 Method for injection-molding an orthopedic device and product of the method 40 1998
 
TOSHIBA KIKAI KABUSHIKI KAISHA (1)
* 4780256 Methods for controlling injection molding machines 5 1987
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
3M INNOVATIVE PROPERTIES COMPANY (2)
* 8973225 Structured surface with multiple-post caps and method of making the same 0 2010
* 2012/0151,720 STRUCTURED SURFACE WITH MULTIPLE-POST CAPS AND METHOD OF MAKING THE SAME 1 2010
* Cited By Examiner

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