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. 11, 2019
Filed:
Aug. 14, 2017
Federal-mogul Ignition Gmbh, Neuhaus-Schierschnitz, DE;
Werner Niessner, Steinheim, DE;
Marko Schwesinger, Sonneberg, DE;
FEDERAL-MOGUL IGNITION GMBH, Neuhaus-Schierschni, DE;
Abstract
A spark plug and a method for manufacturing a spark plug. The spark plug has a retaining mechanism holding the insulator in the body in a positive manner, by means of which the insulator is pressed against the seal seat in the longitudinal direction with a preloading force (Fv) in order to seal the passage against the flow of combustion gases through it. A positive-acting securing mechanism that at least partially overlaps the side of the retaining mechanism facing away from the front end is placed on, and attached to, the body. Provision is made so that the insulator projects beyond the side of the securing mechanism facing away from the front end, wherein the securing mechanism overlaps the retaining mechanism, forming a gap with the retaining mechanism and forming a gap with the insulator.