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:
Apr. 04, 2006
Filed:
Apr. 01, 2004
Hiromi Hiramatsu, Kariya, JP;
Hiromi Hiramatsu, Kariya, JP;
Denso Corporation, Kariya, JP;
Abstract
The present invention relates to a multi-point spark plug capable of facilitating the attachment of a plug cap. The multi-point spark plug is made up of two center electrodes, an insulator for accommodating the center electrodes, a housing for holding the insulator and earth electrodes located at one end portion of the housing and each disposed in opposed relation each of the center electrodes in a state where a discharging gap is interposed therebetween. Moreover, first and second terminals to be electrically connected to the center electrodes are provided in a head portion of the insulator. In an outside configuration composed of the head portion and the first and second terminals, a contour between a location of the second terminal and a location of the first terminal is formed axis-symmetrically with respect to an axis of the head portion.