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:
Aug. 26, 2008
Filed:
Apr. 09, 2004
Applicants:
Mariann Sundberg, Västerås, SE;
Rolf Sundberg, Västerås, SE;
Sture Östlund, Västerås, SE;
Inventors:
Assignee:
Luvata Oy, Espoo, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22F 1/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a copper alloy having high recrystallization temperature and good conductivity used in brazed heat exchangers which alloy consists of 0.1 to 0.3% in weight chromium. The invention also relates to a method for the manufacturing of the alloy which method consists of the following steps: casting, cold working, annealing and another cold working before brazing.