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:
May. 07, 2019
Filed:
Mar. 27, 2018
Denso International America, Inc., Southfield, MI (US);
Denso Corporation, Kariya, Aichi-pref., JP;
Blaise Friery, Farmington Hills, MI (US);
Nicholas Polcyn, Commerce, MI (US);
DENSO International America, Inc., Southfield, MI (US);
DENSO CORPORATION, Kariya, Aichi-pref., JP;
Abstract
A spark plug includes a housing, a center electrode disposed within the housing, and a ground electrode cooperating with the center electrode to generate a spark. The ground electrode further includes an arm having a main body and a base, a pad fixed to the base, and a covering affixed to at least one of the main body and the base. The main body is fixed to the housing. The covering alters a dielectric constant of the main body or a dielectric constant of the base to create a difference in the dielectric constant of the main body and the dielectric constant of the base and focus the spark on the pad.