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:
Nov. 05, 1985
Filed:
Jun. 08, 1984
Applicant:
Inventors:
Nathan L Church, Chagrin Falls, OH (US);
W Raymond Cribb, Mentor, OH (US);
John C Harkness, Lakewood, OH (US);
Assignee:
Brush Wellman Inc., Cleveland, OH (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C22C / ; C22F / ;
U.S. Cl.
CPC ...
148411 ; 148 / ;
Abstract
This invention is directed to age hardenable copper beryllium alloys, and to articles and parts made therefrom, which contain special small amounts of beryllium and cobalt; e.g., about 0.2% to about 0.5% beryllium and about 0.2% to about 0.4% cobalt, which, when finished by solution treating, cold working at least about 50% or at least about 70% and age hardening have a superior combination of stress relaxation resistance, formability, ductility, conductivity and strength.