Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Victor H. Tapia Ramirez0
Terry Pecott0
Thomas J. Smith0
Timothy Andros0
Alexander S. Cooper0
Claudinei J. de Oliveira0
Jason P. Bieneman0
Robert J. Piccard0
Date of Patent
October 1, 2019
Patent Application Number
15291427
Date Filed
October 12, 2016
Patent Citations Received
Patent Primary Examiner
Patent abstract
A method of forming a piston ring includes providing a base portion formed of a metallic material, the base portion having a first surface, and a second surface that is opposite the first surface, the base portion configured to interface with a piston ring groove. The method includes grinding the first surface to form a reference surface, applying a chromium layer to the second surface, and grinding the chromium layer to reduce a surface roughness of the chromium layer.
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