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:
Dec. 24, 2002
Filed:
Sep. 27, 2000
Applicant:
Inventors:
Nathan K. Meckel, LaMesa, CA (US);
Dana Howard Campbell, late of Palmer, AK (US);
Assignee:
Molecular Metallurgy, Inc., El Cajon, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C23C 2/278 ;
U.S. Cl.
CPC ...
C23C 2/278 ;
Abstract
An article is protected with a wear-resistant coating. The wear-coated article is thereafter treated to produce a chemical conversion coating on any portions of the surface of the article accessible through micropores in the wear-resistant coating. For steel articles, the wear-resistant coating is preferably a titanium nitride-based intermetallic compound such as TiN, Ti N, (TiAl)N, Ti(CN), (TiAl)(CN), ZrN, and CrN, and the chemical conversion coating is preferably a phosphate-based compound.