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:
May. 02, 2017
Filed:
Dec. 30, 2013
Applicant:
Mahle International Gmbh, Stuttgart, DE;
Inventors:
Thomas Smith, Muskegon, MI (US);
Jason Bieneman, Brunswick, MI (US);
Assignee:
Mahle International GmbH, , DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23P 15/06 (2006.01); F16J 9/26 (2006.01); C23C 4/06 (2016.01); C23C 4/18 (2006.01); C23C 14/02 (2006.01); C23C 14/06 (2006.01);
U.S. Cl.
CPC ...
F16J 9/26 (2013.01); C23C 4/06 (2013.01); C23C 4/18 (2013.01); C23C 14/025 (2013.01); C23C 14/028 (2013.01); C23C 14/0641 (2013.01);
Abstract
Exemplary piston rings are disclosed, comprising a base portion formed of a metallic material, and an outer contact surface extending between opposing side faces of the piston ring. The piston ring may include a coating layer applied to the outer contact surface, with the coating layer including an inner layer and an outer layer. Exemplary methods of making a piston ring are also disclosed, comprising providing a base portion formed of a metallic material, applying an inner layer to an outer surface of the base portion, and applying an outer layer on top of the inner layer.