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. 23, 2004
Filed:
Jun. 04, 2002
Applicant:
Inventors:
Carsten Venn, Bamberg, DE;
Klaus Hrastnik, Stuttgart, DE;
Thomas Jaeger, Erdmannhausen, DE;
Hellmut Schmid, Sachsenheim, DE;
Assignee:
Robert Bosch GmbH, Stuttgart, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02M 5/706 ;
U.S. Cl.
CPC ...
F02M 5/706 ;
Abstract
An ignition device, in particular, a spark plug for Otto engines, includes an electric connection ( ) and a tubular metal housing ( ) with a screw-in thread ( ) stamped on it. At least one of the metal components of the spark plug is provided with a paint coating that serves to protect the spark plug from corrosion.