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:
Oct. 10, 2017
Filed:
Mar. 31, 2015
Federal-mogul Ignition Gmbh, Neuhaus-Schierschnitz, DE;
Werner Niessner, Steinheim, DE;
Alexander Schenk, Waiblingen, DE;
FEDERAL-MOGUL IGNITION GMBH, Neuhaus-Schierschni, DE;
Abstract
A sealing ring for a spark plug that has an external thread for screwing into an internal combustion engine, a collar and a thread undercut between the external thread and the collar. The sealing ring includes a ring-shaped solid sealing element made from metal. The sealing element has two planar annular sealing surfaces that are arranged parallel to one another. An annular retaining element composed of an elastomer for engaging in the thread undercut of the spark plug in a self-retaining manner is attached to the sealing element on the inner ring side thereof. Also included is a spark plug comprising such a sealing ring, and an internal combustion engine comprising such spark plugs.