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:
Sep. 17, 2013
Filed:
Jun. 22, 2011
Applicants:
Dieter Kuhnert, Sinsheim, DE;
Georg Maul, Bad Wurzach, DE;
Uwe Sailer, Sinsheim, DE;
Inventors:
Assignee:
DKT Verwaltungs-GmbH, Sinsheim, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01T 13/20 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention refers to a prechamber spark plug comprising an ignition electrode with several electrode arms. The ignition electrode is made of a cross-shaped blank that is cut out of sheet metal and then the electrode arms are set upright by bending. The sheet metal is made of iridium or an iridium-based alloy by rolling in a rolling direction and the ignition electrode blank is cut out in such a way that an angle of 50° or less is present between each of the electrode arms and the rolling direction (W).