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:
Jan. 05, 2016
Filed:
Apr. 28, 2015
Applicant:
Federal-mogul Ignition Company, Southfield, MI (US);
Inventors:
Kevin J. Kowalski, Perrysburg, OH (US);
Nathan A. Thomson, Southgate, MI (US);
Richard L. Keller, Whitehouse, OH (US);
Assignee:
Other;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01T 13/20 (2006.01); H01T 13/32 (2006.01); H01T 13/39 (2006.01); H01T 21/02 (2006.01);
U.S. Cl.
CPC ...
H01T 13/32 (2013.01); H01T 13/39 (2013.01); H01T 21/02 (2013.01);
Abstract
A spark plug has a shell, an insulator, a center electrode, a ground electrode, and a firing pad. The firing pad is made of a precious metal material and is attached to the ground electrode. The firing pad has a side surface at a peripheral edge that can be flush or nearly flush with a free end surface of the ground electrode. This construction can help improve ignitability and flame kernel growth of the spark plug during a sparking event, and can provide better thermal management at the attached ground electrode and firing pad.