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:
Jul. 19, 2011
Filed:
Jun. 12, 2008
Applicants:
Werner Niessner, Steinheim, DE;
Lutz Frassek, Rödental, DE;
Hans Houben, Würselen, DE;
Inventors:
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01T 21/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention describes a spark plug having an outer electrode (), a central electrode (), an inner conductor () connected to the central electrode () and an insulator () enclosing the inner conductor (). It is provided according to the invention that the insulator () is produced by extrusion. The invention further relates to a method for production of a spark plug of that kind.