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Document Number
US Patent 7303711
Issued Date
December 4, 2007
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Abstract
A rotating mold roll defines an array of molding cavities. The mold roll is positioned adjacent a pressure device to define a pressure nip. At least one of the mold roll and the pressure device define a molding recess that is larger than the molding cavities. Resin is introduced to the rotating mold roll and pressed into the molding cavities and the molding recess to form discrete projections and a series of discrete, longitudinally spaced apart structural features. The projections and structural features are carried on a continuous sheet-form base. The resin is removed from the mold roll to expose a continuous preform sheet including the base, the projections, and the structural features. The structural features are arranged along the preform sheet in a longitudinally repeating pattern. The preform sheet is separated into multiple discrete products including an array of the projections and at least one of the structural features.
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Number of Claims:
63
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Owner
Published
December 4, 2007
Application Number
10/997,337
Filed
November 24, 2004
US Classification
264/220   264/221
Int'l Classification
B29C   41/02   (20060101)  
Examiner
Attorney/Law Firm
Parent Case
CROSS-REFERENCE TO RELATED APPLICATION This application claims priority under 35 USC .sctn.119(e) from U.S. Provisional Patent Application Ser. No. 60/547,212, filed Feb. 24, 2004, which also claims the benefit from U.S. Provisional Patent Application Ser. No. 60/624,216, filed Nov. 2, 2004, the entire contents of which are herein incorporated by reference
USPTO Field of Search
428/100   264/146   264/147   264/166   264/167   264/201.1   602/5   602/19   602/36   602/75   602/78   128/DIG.15  
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