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:
Feb. 24, 2009
Filed:
Aug. 13, 2003
Rinze Benedictus, PJ Delft, NL;
Christian Joachim Keidel, Montabaur, DE;
Alfred Ludwig Heinz, Niederahr, DE;
Alfred Johann Peter Haszler, Vallendar, DE;
Hinrich Johannes Wilhelm Hargarter, Alkmaar, NL;
Rinze Benedictus, PJ Delft, NL;
Christian Joachim Keidel, Montabaur, DE;
Alfred Ludwig Heinz, Niederahr, DE;
Alfred Johann Peter Haszler, Vallendar, DE;
Hinrich Johannes Wilhelm Hargarter, Alkmaar, NL;
Aleris Aluminum Koblenz GmbH, Koblenz, DE;
Abstract
Disclosed is an Al—Cu alloy of the AA2000-series alloys with high toughness and an improved strength, including the following composition (in weight percent) Cu 4.5-5.5, Mg 0.5-1.6, Mn≦0.80, Zr≦0.18, Cr≦0.18, Si≦0.15, Fe≦0.15, the balance essentially aluminum and incidental elements and impurities, and wherein the amount (in weight %) of magnesium is either: (a) in a range of 1.0 to 1.6%, or alternatively (b) in a range of 0.50 to 1.2% when the amount of dispersoid forming elements such as Cr, Zr or Mn is controlled and (in weight %) in a range of 0.10 to 0.70%.