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. 29, 2013
Filed:
Sep. 21, 2012
Applicant:
Federal-mogul Ignition Company, Southfield, MI (US);
Inventors:
Richard L. Keller, Whitehouse, OH (US);
Kevin J. Kowalski, Perrysburg, OH (US);
Assignee:
Federal-Mogul Ignition Company, Southfield, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01T 21/02 (2006.01); H01T 13/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A spark plug includes a metallic shell, an insulator, a center electrode body, a ground electrode body, and a ground electrode tip. In one embodiment, the ground electrode tip includes a non-precious metal piece and a precious metal piece attached to each other. The non-precious metal piece has a side surface attached to a free end surface of the ground electrode body.