Patent 6877205 was granted and assigned to Brentwood Industries, Inc. on April, 2005 by the United States Patent and Trademark Office.
A method of connecting contact sheets to form a contact body that provides for mechanically deforming at least same of both interior and edge projection-depression couplings formed in two sheets to form positive locks in a pair of sheets, and then mechanically deforming only edge projections to form positive locks between at least two pairs of sheets, thereby forming the contact body.