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. 25, 1993
Filed:
Jan. 30, 1992
Applicant:
Inventors:
Deepak Mahulikar, Madison, CT (US);
Brian Mravic, North Haven, CT (US);
Assignee:
Olin Corporation, New Haven, CT (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C22C / ;
U.S. Cl.
CPC ...
148627 ; 428671 ;
Abstract
There is provided a composite copper alloy having a copper alloy core and a modified surface layer containing a nitride or carbide film. Alternatively, the modified surface layer may contain a carbo-nitride film. The alloy is formed by reacting a copper alloy with nitrogen, carbon or a nitrogen/carbon mixture at elevated temperatures. The resultant surface layer improves the tribological and mechanical properties of the alloy while maintaining useful electrical conductivity.