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:
Jun. 12, 2018
Filed:
Jul. 31, 2014
Mahle Metal Leve S/a, Jundiai-Sp, BR;
Mahle International Gmbh, Stuttgart, DE;
Antonio E. Meirelles Tomanik, Sao Paulo, BR;
Daniel Lopez, Stuttgart, DE;
Mahle Metal Leve S/A, , BR;
Mahle International GmbH, , DE;
Abstract
A piston ring for a piston of an internal combustion engine or a compressor may include a substantially annular shaped body defining an inner surface facing towards a groove configured to receive the body, an upper surface facing towards a combustion chamber and extending substantially at a right angle to the inner surface, and a lower surface disposed substantially opposite the upper surface. A layer of thermally insulating coating may be disposed at least partially on at least one of the inner surface, the upper surface and the lower surface.