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. 08, 2013
Filed:
Mar. 31, 2011
Applicants:
Christopher Thomas, Oakland, MI (US);
Jeongung Hwang, Northville, MI (US);
Nicholas C. Polcyn, Commerce, MI (US);
Inventors:
Christopher Thomas, Oakland, MI (US);
Jeongung Hwang, Northville, MI (US);
Nicholas C. Polcyn, Commerce, MI (US);
Assignee:
DENSO International America, Inc., Southfield, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01T 13/40 (2006.01); H01T 13/20 (2006.01); F02P 13/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A spark plug includes a housing, a center electrode, a ground electrode, and a pre-chamber cup. The housing is configured to thread into a spark-plug hole in an engine. The center electrode extends axially from a center of the housing. The ground electrode extends radially inward from the housing. The pre-chamber cup is attached to the housing. The housing defines a gas thread cavity that extends radially at least partially through the housing.