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:
Jul. 06, 2004
Filed:
Jul. 09, 2003
Thomas L. Levendusky, Greensburg, PA (US);
Robert B. Larsen, Maryville, TN (US);
Vincent J. Downard, New Kensington, PA (US);
Roy B. Steidley, Oakmont, PA (US);
Dawn A. Armfield, Knoxville, TN (US);
Paul H. Fournier, Knoxville, TN (US);
John B. Kapustay, Jr., Maryville, TN (US);
Jeffrey B. Pezick, Louisville, TN (US);
Alcoa Inc., Pittsburgh, PA (US);
Abstract
A method and apparatus for extrusion coating both sides of a metal strip. A metal strip, such as aluminum alloy strip, is moved through a pre-conditioner, two extrusion dies, a post-heater and a cooling system. Both sides of the strip are coated with thin coatings of thermoplastic polymers. The coated metal strip is useful for containers, such as cans and can ends, as well as for automobiles, appliances, aerospace, construction and electrical devices.