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:
May. 07, 2013
Filed:
Jun. 01, 2007
Applicants:
Norbert Gaag, Lauf, DE;
Alexander Dehnelt, Nürnberg, DE;
Inventors:
Norbert Gaag, Lauf, DE;
Alexander Dehnelt, Nürnberg, DE;
Assignee:
Diehl Metall Stiftung & Co. KG, Roethenbach, DE;
Primary Examiner:
Int. Cl.
CPC ...
C22C 9/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A novel copper-zinc alloy is particularly suited for a valve guide. The copper-zinc alloy contains 59 to 73% copper, 2.7 to 8.3% manganese, 1.5 to 6% aluminum, 0.2 to 4% silicon, 0.2 to 3% iron, 0 to 2% lead, 0 to 2% nickel, 0 to 0.2% tin, remainder zinc and inevitable impurities.