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. 07, 2003
Filed:
Feb. 23, 2001
Applicant:
Inventors:
Heinz Ulm, Kunreuth, DE;
Rainer Kocik, Bamberg, DE;
Stephan Weigel, Thurnau, DE;
Jochen Fischer, Bamberg, DE;
Peter Metzler, Stegaurach, DE;
Detlef Hartmann, Bamberg, DE;
Assignee:
Robert Bosch GmbH, Stuttgart, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01T 1/322 ; H01T 2/102 ;
U.S. Cl.
CPC ...
H01T 1/322 ; H01T 2/102 ;
Abstract
A spark plug electrode having a welded-on noble-metal part for a longer service life of the spark plug. Prior to the welding process, the noble-metal part is provided with a profiling on the side facing the spark plug electrode.