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:
Nov. 01, 2016
Filed:
Sep. 12, 2012
Applicants:
SO Jung Shim, Seoul, KR;
Jeong Uk an, Gyeonggi-do, KR;
Inventors:
So Jung Shim, Seoul, KR;
Jeong Uk An, Gyeonggi-do, KR;
Assignee:
Hyundai Motor Company, Seoul, KR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16J 9/00 (2006.01); F16J 9/26 (2006.01);
U.S. Cl.
CPC ...
F16J 9/26 (2013.01);
Abstract
Disclosed is a piston ring for engine that includes chromium (Cr) coating layer coated on the surface of a base material of the piston ring of an engine; a chromium nitride (CrN) coating layer; and a silicon-incorporated diamond-like carbon (Si-DLC) coating layer, which is formed on the CrN coating layer, and contains Si component of about 3˜10 at %, and a method for manufacturing thereof.