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. 25, 2000
Filed:
Jun. 18, 1998
Applicant:
Inventor:
William L Brenneman, Cheshire, CT (US);
Assignee:
Olin Corporation, New Haven, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22C / ;
U.S. Cl.
CPC ...
148432 ; 420496 ; 420499 ;
Abstract
A copper alloy having improved resistance to stress relaxation contains controlled additions of iron, phosphorous and magnesium. Free magnesium, in solid solution with the copper, increases the alloy's resistance to stress relaxation. Copper alloys of the invention retain at least 70% of the initial stress following exposure to a temperature of 105.degree. C. for 3000 hours, making the alloys particulary useful for electrical connector components.