Method for making cookware with selectively bonded layers

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United States of America Patent

PATENT NO 9888808
SERIAL NO

14736393

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Abstract

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A method of making cookware containing a bonded composite comprising the steps of providing at least two layers of materials by pressurizing and heating wherein the first of the at least two layers of materials has a plurality of spaced-apart bubbles formed on its surface, defining a cooking surface of the cookware, and a second layer of two layers of material is bonded thereto, wherein the bonding between the bubbles and the second material is of a lesser degree than the bonding between the first and second layers of materials in areas intermediate the bubbles, whereby a coefficient of heat conductivity is greater in the intermediate areas than in the bubbles. The method also includes providing a plurality of sets of bonding blank assemblies by solid state processing under pressure and heat.

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Patent Owner(s)

  • ALL-CLAD METALCRAFTERS LLC

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Groll, William A McMurray, US 63 926
Watkins, John Canonsburg, US 49 746

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