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:
Feb. 26, 2019
Filed:
Jan. 25, 2017
Ngk Spark Plug Co., Ltd., Nagoya, JP;
Masahiro Inoue, Gifu, JP;
Takahiro Karumi, Komaki, JP;
NGK SPARK PLUG CO., LTD., Nagoya, JP;
Abstract
A spark plug includes an insulator; a center electrode; a metal shell; and a ground electrode whose base end is fixed to the metal shell. A distal end of the ground electrode includes a first surface facing the center electrode, a second surface facing a side opposite to the first surface, and an inclined surface that is inclined with respect to the second surface. A noble metal tip is partially buried in the inclined surface. A width of the inclined surface is larger than that of the noble metal tip. In this spark plug, A B is satisfied, where A is a distance from a distal end of the ground electrode to a proximal-end-side end portion of the inclined surface and B is a distance from the distal end of the ground electrode to a proximal-end-side end portion of the noble metal tip.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile