The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 24, 2002
Filed:
Jul. 07, 2000
Robert Preston Spears, Richmond, VA (US);
Burwell Lewis Lafoon, Jr., Glen Allen, VA (US);
Joe C. Peace, Jr., Mechanicsville, VA (US);
Karl-Heinz Johannes Reilmann, Eastman, GA (US);
Reynolds Metals Company, Richmond, VA (US);
Abstract
The present invention relates to an improved composite panel that is suitable for architectural and display applications and an advantageous method for making the composite panel. The composite panel comprises a foamed plastic core and two metallic skin layers bonded to the plastic core. The composite panel exhibits an effective bond strength sufficient to prevent peeling of the skin layers under normal use conditions, at least one visually flat surface substantially free of surface defects, and a stiffness to weight ratio of at least about 500 lb -in/lb /ft .