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. 13, 2018
Filed:
Jun. 10, 2015
Federal-mogul Burscheid Gmbh, Burscheid, DE;
Richard Mittler, Burscheid, DE;
Joern Proepper, Leverkusen, DE;
Federal-Mogul Burscheid GmbH, Burscheid, DE;
Abstract
A piston ring for a piston of a piston engine has an external circumferential surface (), and internal circumferential surface (), and upper flank () pointing in the direction of the piston upper side, and a lower flank () pointing in the direction of the piston underside. The lower flank () runs obliquely with respect to the upper flank (), so that axial height (A) of the piston ring is grater at the external circumferential surface () than the axial height (B) at the internal circumferential surface (), and wherein on each side of the thrust of the piston ring at least one recess () is provided in the upper flank ().