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. 14, 2017
Filed:
Feb. 21, 2014
Applicant:
Robert Bosch Gmbh, Stuttgart, DE;
Inventors:
Hermann Kersting, Ludwigsburg, DE;
Jorge Diaz Alfonso, Fellbach, DE;
Assignee:
ROBERT BOSCH GMBH, Stuttgart, DE;
Primary Examiner:
Int. Cl.
CPC ...
H01T 13/04 (2006.01); H01T 13/34 (2006.01); H01T 13/20 (2006.01);
U.S. Cl.
CPC ...
H01T 13/34 (2013.01); H01T 13/20 (2013.01);
Abstract
A spark plug includes a housing, an insulator inside the housing, a center electrode inside the insulator, and a connecting pin inside the insulator. At least one fillet is formed at a change of cross section at the housing, at the insulator, at the center electrode, and/or at the connecting pin. The fillet, viewed in cross section, includes a first leg and a second leg at an angle to the first leg. The length of the first leg is greater than the length of the second leg.