US Patent 7939158 Double walled structural reinforcement

Patent 7939158 was granted and assigned to AKRON RUBBER DEVELOPMENT LABORATORY,INCORPORATED on May, 2011 by the United States Patent and Trademark Office.

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Is a

Patent

Patent attributes

Current Assignee

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AKRON RUBBER DEVELOPMENT LABORATORY,INCORPORATED

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7939158

Date of Patent

May 10, 2011

Patent Application Number

11738798

Date Filed

April 23, 2007

Patent Primary Examiner

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Gordon R Baldwin

Patent abstract

A double walled reinforcement structure and method for making a double walled reinforcement structure having a plurality of longitudinally extending and nested structural members. Each structural member comprises a first cell having a first cross-section and a second cell having a second cross-section. The second cell is positioned within the first cell and the second cell contacts the first cell in a plurality of locations to provide mutual support of the cells in a manner increasing the tensile and compressive strength of the structure.