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Anti-curling foil manufacturing process
   
Document Number
US Patent 7299605
Issued Date
November 27, 2007
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Abstract
A process for manufacturing a foil package from foil laminate sheet stock. The foil laminate has a top foil sheet and a bottom polymeric sheet laminated to the foil sheet. A cavity is molded into the bottom foil sheet, wherein the cavity has a bottom, a depth and a periphery, such that all of the periphery is substantially arcuate at any horizontal cross-section along the depth of the cavity. The top planar sheet is heat sealed to the bottom molded sheet. The molding process substantially reduces or eliminates curling.
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Number of Claims:
9
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Owner
Ethicon, Inc. (Somerville, NJ)
Published
November 27, 2007
Application Number
10/894,167
Filed
July 19, 2004
US Classification
53/453   53/140 53/559
Int'l Classification
B65B   47/00   (20060101)   B65B   47/08   (20060101)  
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USPTO Field of Search
53/453   53/559   53/140  
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