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:
Sep. 12, 1995
Filed:
Oct. 08, 1993
Applicant:
Inventor:
Andre Coulon, Bessoncourt, FR;
Assignee:
GEC Alsthom Electromecanique SA, Paris, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22F / ;
U.S. Cl.
CPC ...
428552 ;
Abstract
A surface coating (6) on martensitic steel for portions that rub by rotation is characterized in that it comprises a matrix (9) of NiMo in which grains of Cr.sub.3 C.sub.2 are embedded, 90% of which by weight are constituted by grains (8) in the range 10 .mu.m to 30 .mu.m. The coating has a low coefficient of friction and good adhesion.