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:
Dec. 03, 2024
Filed:
May. 21, 2024
Niterra Co., Ltd., Nagoya, JP;
Tatsuya Gozawa, Nagoya, JP;
NITERRA CO., LTD., Nagoya, JP;
Abstract
A spark plug includes: a cylindrical center electrode extending along an axial line; a metal shell that holds the center electrode in an insulated manner; and a ground electrode electrically connected to the metal shell. A spark gap is formed between a side surface of the center electrode and an end face of the ground electrode. The metal shell includes a tubular distal end portion inside which the spark gap is located. In a cross section perpendicular to the axial line and including a center of gravity of the end face, a distance between a center line of the ground electrode, the center line including the center of gravity, and a point of tangency of a tangent line to the side surface of the center electrode is greater than 0 and smaller than a distance between an edge of the end face and the center of gravity.