Injection molding products having fastener elements

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6224364
SERIAL NO

09158442

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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An injection molded product, having an array of fastener elements integrally molded with and extending from a surface of the product, is molded in a closed cavity die. One half of the die has a mold surface with a region having an array of fastener element cavities extending therefrom for molding the fastener elements. The other half of the die has a mold surface aligned with the mold surface of the first mold part to define therebetween, in a closed condition, a mold cavity constructed to receive molten plastic for molding the product. The mold cavity includes a first portion comprising a majority of the volume of the mold cavity, and a second portion contiguous with the first portion and defined in part by the region of the first mold part surface having the array of fastener element cavities. At least one of the first and second mold parts has a moveable segment constructed to be retracted across the mold cavity, between filling of the first portion of the mold cavity with said plastic and filling of the fastener element cavities with said plastic, to enable the fastener element cavities and the first portion of the mold cavity to be filled under different molding conditions. In some cases, the fastener elements are molded of a different material than other portions of the molded product. The injection mold is particularly useful for molding large functional products that include small arrays of miniature fastener elements, such as for hook-and-loop fastening.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
VELCRO INDUSTRIES B.V.CURACAO23

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Harvey, Andrew C Waltham, MA 62 1079

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Le Moulage Automatique (1)
4897032 Apparatus for making a closure device comprising a hinged cap for a container 9 1988
 
KURARAY CO., LTD. (1)
4842916 Separable fastener component & moldings attached with such fastener component 65 1987
 
Minnesota Mining and Manufacturing Company (2)
4563380 Fastener assembly with improved temporary attachment layer 69 1984
5242646 Method of making an interengaging fastener member 55 1992
 
R.A. CASALOU, INC., (1)
4470857 Method of making foam plastic article 56 1982
 
APLIX CORPORATION (1)
4693921 Fastening tape designed to be attached to a molded article during molding, and its attaching method 76 1984
 
KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.) (1)
4712414 Rolling method of plate-like stock material by edger, and continuous hot rolling mill 2 1986
 
LEAR CORPORATION (1)
4673542 Method of making a foamed seat or cushion having integral fasteners 52 1985
 
NIFCO INC. (1)
5460769 Method and apparatus for manufacturing a separable plastic fastener 15 1994
 
John H. Blanz Company, Inc. (1)
4725221 Improved machine for continuously producing an element of a separable fastener 37 1986
 
The Joint Stock Company "L'Oreal" (1)
4561456 Eyelash brush and method and apparatus for manufacturing same 42 1984
 
SORENSEN, JENS OLE (1)
* 5125816 Apparatus for molding an article in a plurality of colors 15 1991
 
VELCRO INDUSTRIES B.V. (7)
4775310 Apparatus for making a separable fastener 144 1986
4726975 Method and apparatus for adapting separable fasteners for attachment to other objects 49 1986
4840339 Bistable panel attachment system 15 1988
4984339 Hook for hook and loop fasteners 135 1988
4881997 Method for adapting separable fasteners for attachment to other objects 88 1989
5201100 Adjustable device for hook and loop fastener 24 1992
5606781 Separable fastener having a bald perimeter rib bounded by fastening elements 50 1995
 
APLIX, S.A. (2)
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
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
INTERNATIONAL AUTOMOTIVE COMPONENTS GROUP NORTH AMERICA, INC. (2)
* 7060215 Method of forming a vehicle trim panel 3 2003
* 2004/0017,023 Method of forming a vehicle trim panel 4 2003
 
Other [Check patent profile for assignment information] (5)
7254874 Molded surface fasteners and attachment methods 2 2005
7828545 Apparatus and method for producing structures with multiple undercut stems 1 2007
* 2008/0018,025 Apparatus and method for producing structures with multiple undercut stems 1 2007
7950114 Self-adhering device and method 0 2007
8480943 Apparatus and method for producing structures with multiple undercut stems 1 2010
 
HONDA GIKEN KOGYO KABUSHIKI KAISHA (2)
6486876 Paperless accounting system 0 1994
6417871 Paperless accounting system for creating accurate electronic slips at high speed and including approval settlement 4 1997
 
APLIX (6)
8522407 Insertion block for the formation of a hook field on an injection-moulded object, and a moulded object comprising a hook field of this type 1 2008
* 2009/0106,955 Insertion block for the formation of a hook field on an injection-moulded object, and a moulded object comprising a hook field of this type 6 2008
* 9278469 Injection-moulded article comprising a field of hooks obtained by moulding 0 2009
* 2011/0111,165 INJECTION-MOULDED ARTICLE COMPRISING A FIELD OF HOOKS OBTAINED BY MOULDING 6 2009
* 9193104 Injection-moulded article comprising a field of hooks obtained by moulding 0 2014
* 2014/0212,538 INJECTION-MOULDED ARTICLE COMPRISING A FIELD OF HOOKS OBTAINED BY MOULDING 0 2014
 
VELCRO BVBA (1)
* 6451239 Process of making a hook fastener using radio frequency heating 5 2000
 
TACHIBANA MOLD & TOOL CORP. (1)
* 2003/0214,071 Mold 2 2003
 
Dehco, Inc. (2)
D574473 Bath unit 0 2007
D577425 Shower unit 0 2007
 
KIMBERLY-CLARK WORLDWIDE, INC. (3)
7608070 Foam-based fasteners 9 2004
* 2006/0069,380 Foam-based fasteners 12 2004
7640637 Methods to modify the fibrous landing layer of a foam based fastener and products made from the same 2 2005
 
INTER-MOLD CORPORATION (3)
6898804 Ski pole grip and glove combination 13 2003
* 2005/0184,216 Front-mounted removable mold insert for injection molded hooks 2 2004
* 2005/0186,386 Method and apparatus for manufacturing article with integrally formed hooks with shear at hook-bearing surface 0 2004
 
JOHNSON CONTROLS TECHNOLOGY COMPANY (1)
* 2006/0226,574 Trim panel 4 2004
 
APLIX, S.A. (1)
* 7438845 Method for manufacturing article with integrally formed hooks with shear at hook-bearing surface 0 2004
* Cited By Examiner