Tooling with helical coils for structured surface articles

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6767202
APP PUB NO 20030111767A1
SERIAL NO

10024919

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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Tool rolls and methods of using the tool rolls to manufacture articles with one or more structured surfaces are disclosed. The tool rolls include an outer surface that, when used in connection with materials of the proper viscosity or formability, can form a structured surface on an article. Because the tools are manufactured in roll-form, they can be advantageously used in continuous manufacturing processes. Alternatively, discrete articles may be processed using the tool rolls. The tool rolls are constructed of a cylindrical base roll and are wrapped with one or more continuous wires in a modified undulating helical pattern. The modified helical pattern results in the distance between the first wire and a reference plane transverse to the longitudinal axis of the base roll sequentially increasing and decreasing at least once when moving in one direction about a circumference of the base roll. The wires are used, in essence, to form a structured surface on the tool roll that is the negative of the structured surface to be formed on the articles processed using the tool roll. One or more of the wires wound around the base roll may include a plurality of voids formed therein that, when wound about the base roll, form a plurality of mold cavities on the outer surface of the tool roll. Alternatively, the helical pattern of one or more wound wires may be used to form a continuous helical structured surface, e.g., a helical groove or grooves.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
3M INNOVATIVE PROPERTIES COMPANYST PAUL, MN8719

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gorman, Michael R Lake Elmo, MN 49 1166
LaLiberte, Thomas R Eagan, MN 11 77

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Minnesota Mining and Manufacturing Company (3)
5077870 Mushroom-type hook strip for a mechanical fastener 286 1990
5792411 Laser machined replication tooling 103 1995
5845375 Mushroom-type hook strip for a mechanical fastener 82 1997
 
Other [Check patent profile for assignment information] (2)
4537096 Metallic card clothing and method and apparatus for making same 6 1984
5887470 Method and apparatus for dent profiling 12 1998
 
3M INNOVATIVE PROPERTIES COMPANY (1)
6190594 Tooling for articles with structured surfaces 45 1999
 
Hollingsworth GmbH (1)
* 4438547 Carding element for a carding machine 7 1982
 
VELCRO INDUSTRIES B.V. (1)
4775310 Apparatus for making a separable fastener 144 1986
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
3M INNOVATIVE PROPERTIES COMPANY (3)
* 6969479 Tooling with helical coils for structured surface articles 3 2004
* 2004/0159,970 Tooling with helical coils for structured surface articles 0 2004
7645134 Ribbon wound roll 2 2006
 
MOLECULAR IMPRINTS, INC. (1)
* 2005/0260,848 Method of forming a recessed structure employing a reverse tone process 2 2004
 
Xennovate Medical LLC (1)
8834514 Resilient band medical device 11 2013
 
SMITHKLINE BEECHAM CORPORATION (1)
* 2008/0058,858 Method of imparting a mono-axial or multiaxial stiffness to extruded materials and products resulting therefrom 50 2007
 
GLAXOSMITHKLINE LLC (3)
8834511 External nasal dilator and methods of manufacture 11 2010
* 2011/0054,517 EXTERNAL NASAL DILATOR AND METHODS OF MANUFACTURE 32 2010
D662203 Nasal dilator 39 2011
* Cited By Examiner