Fastener element molding

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6930277
APP PUB NO 20030012921A1
SERIAL NO

10154539

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A method of forming a mold having cavities for molding loop-engageable, hook-shaped fastener elements, includes: supporting a first plate having an outer surface that defines a plane; manipulating a material-cutting beam of a laser along a predetermined curved profile to cut a cavity into the outer surface of the first plate, the predetermined curved profile being generally hook-shaped, the cavity defined by a wall extending into the first plate from the outer surface; in a series of subsequent actions, repeatedly indexing the first plate relative to the laser to direct the material-cutting beam at further positions on the first plate and repeating the step of manipulating the material-cutting beam of the laser relative to the first plate to form a series of cavities, each having a hook-shaped profile; and positioning a second plate adjacent the outer surface of the first plate, the second plate providing a side wall surface for each of the cavities of the first plate, the first plate and the second plate in combination forming a mold having cavities for molding loop-engageable, hook-shaped fastener elements. Various methods for aligning such mold plates in a fastener element molding apparatus are also provided. A hook product includes a stem portion integrally molded with and extending from a sheet-form base to a distal end, the stem portion having a planar side; and a crook portion extending from the distal end of the stem portion to overhang the sheet-form base in an overhang direction, the crook portion having a flat planar side co-planar with the planar side of the stem, and an upper surface extending upward from an upper extent of the planar side of the crook portion to an apex.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
VELCRO INDUSTRIES B.V.CURACAO23

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Formato, Richard M Grafton, MA 26 343
Gallant, Christopher M Nottingham, NH 65 404
Harvey, Andrew C Waltham, MA 62 1115
Jens, Stephen C Winchester, MA 31 497

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Minnesota Mining and Manufacturing Company (2)
4894060 Disposable diaper with improved hook fastener portion 521 1988
5792411 Laser machined replication tooling 103 1995
 
3M INNOVATIVE PROPERTIES COMPANY (2)
* 6190594 Tooling for articles with structured surfaces 48 1999
* 6489003 Elastic fastener 28 2000
 
SONY CORPORATION (1)
* 6083411 Method for forming a hole and method for forming nozzle in orifice plate of printing head 8 1998
 
Aikawa Iron Works Co., Ltd. (1)
* 6051103 Paper-making screen apparatus 9 1998
 
John H. Blanz Company, Inc. (1)
4725221 Improved machine for continuously producing an element of a separable fastener 38 1986
 
THERMO BLACK CLAWSON INC., A CORPORATION OF DELAWARE (1)
5064537 Seamless screen cylinder with laser cut openings 34 1989
 
The Procter & Gamble Company (1)
5326612 Nonwoven female component for refastenable fastening device and method of making the same 177 1991
 
YKK CORPORATION (3)
5131119 Hook structure for integrally molded surface fastener 57 1991
5361462 Molded surface fastener 19 1993
6061881 Molded engaging member for surface fastener 31 1998
 
HITACHI CONSTRUCTION MACHINERY CO., LTD. (1)
* 5580466 Metal plate processing method, lead frame processing method, lead frame, semiconductor device manufacturing method, and semiconductor device 21 1994
 
VELCRO BVBA (3)
6039556 Stackable mold plates having arrays of laser-cut mold surfaces at their edges 21 1997
5884374 Fastener members and apparatus for their fabrication 24 1997
6163939 Molding of fastening hooks and other devices 41 1999
 
GARRETT CORPORATION, THE (1)
4587700 Method for manufacturing a dual alloy cooled turbine wheel 46 1984
 
Masuda Seisakusho Co., Ltd. (1)
5038469 Method of making a porous roll assembly 9 1990
 
W. R. Weaver Co. (1)
5031483 Process for the manufacture of laminated tooling 74 1989
 
MITSUBISHI DENKI KABUSHIKI KAISHA (1)
* 5688418 Method and apparatus for laser cutting 23 1995
 
FIRST NATIONAL BANK OF CHICAGO, THE, (1)
4573893 Extrusion die with external and internal cooling means 13 1984
 
VELCRO INDUSTRIES B.V. (6)
4775310 Apparatus for making a separable fastener 148 1986
4794028 Method for continuously producing a multi-hook fastner member and product of the method 186 1986
4872243 Multi-hook fastener member 120 1988
4984339 Hook for hook and loop fasteners 136 1988
5339499 Hook design for a hook and loop fastener 65 1993
5971738 Continuous molding of fasteners and other features 15 1997
 
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. (1)
* 6433303 Method and apparatus using laser pulses to make an array of microcavity holes 90 2000
 
GOTTLIEB BINDER GMBH & CO. KG (1)
* 6287665 Method and device for producing a hook-and-pile type closure part from thermoplastic plastics 62 1999
 
CANON KABUSHIKI KAISHA (2)
5174937 Method for molding of substrate for information recording medium and method for preparing substrate for information recording medium 13 1990
5705254 Plastic molded article with a finished surface appearance 23 1996
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
DOW GLOBAL TECHNOLOGIES INC. (1)
* 2007/0261,224 METHODS AND ARTICLES IN HAVING A FRINGED MICROPROTRUSION SURFACE STRUCTURE 21 2007
* Cited By Examiner