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:
Apr. 28, 2020
Filed:
May. 02, 2019
Man Energy Solutions SE, Augsburg, DE;
Björn Dirumdam, Ellgau, DE;
Johannes Bär, Nürnberg, DE;
MAN Energy Solutions SE, Augsburg, DE;
Abstract
A spark plug with a center electrode having a first body and a second body of a precious metal, which is connected to the first body, an earth electrode arranged in the radial direction roundabout the center electrode, and an annular ignition gap formed between the center electrode and the earth electrode. The second body is formed as an annular element with a central recess. The first body has a main body and a projection, which extends into the recess of the second body. The second body is positively held on the first body via an undercut formed in the region of the projection of the first body between the first body and the second body.