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:
Mar. 08, 1994
Filed:
Jan. 28, 1991
Roger D Dennis, Mulberry, FL (US);
Michael L Killian, Troy, MI (US);
Jay M Larson, Marshall, MI (US);
Sundaram L Narasimhan, Marshall, MI (US);
Dennis T Vukovich, Canton, MI (US);
Homer D Wireman, Ventura, IA (US);
Eaton Corporation, Cleveland, OH (US);
Abstract
A method for applying a hardsurfacing material to a workpiece such as a reciprocating aircraft engine tappet in which a carbon-containing wear resistant material in powder form is applied to a surface of the workpiece in the molten state while a sharp temperature gradient is established from the surface into the body of the workpiece to ensure that solidification occurs from the body upward. The resulting surface material consists of wear resistant carbides in a tough martensitic matrix with minimal formation of graphite.