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. 21, 1993
Filed:
Jun. 17, 1992
Applicant:
Inventors:
Steven R Schachameyer, Whitefish Bay, WI (US);
Paul A Bujalski, Battle Creek, MI (US);
Sundaram L Narasimhan, Marshall, MI (US);
Assignee:
Eaton Corporation, Cleveland, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25D / ;
U.S. Cl.
CPC ...
205224 ; 205319 ; 205229 ;
Abstract
An internal combustion engine valve (100) is provided having a stem (4) onto which a plating or coating of trivalent chromium is electrodeposited and which is then heated at a temperature of at least about 150.degree. F. for at least about 3 hours to provide a wear resistant surface that is superior to coatings of hexavalent chromium heretofor used for such purpose.