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. 20, 2022
Filed:
Feb. 28, 2020
Ngk Spark Plug Co., Ltd., Nagoya, JP;
Daisuke Matsuyama, Nagoya, JP;
Masahiro Asai, Nagoya, JP;
Masashi Nomura, Nagoya, JP;
Yuto Inose, Nagoya, JP;
NGK SPARK PLUG CO., LTD., Nagoya, JP;
Abstract
A gas sensor () extending in an axial direction AX including: a gas sensor element () which detects the concentration of a specific gas in a gas under measurement; a tubular metallic shell () having a polygonal tool engagement portion (B) surrounding the gas sensor element (); a tubular outer tube () which extends rearward from the metallic shell (), surrounds the gas sensor element (), and has an opening (E) at a rear end thereof; a sealing member () which seals the opening (E); and a tubular heat dissipating member () which surrounds the outer tube () and reduces the amount of heat transferred from the forward end side of the gas sensor () through the outer tube () to the sealing member (). The maximum diameter Dof the heat dissipating member () is equal to or less than the opposite side dimension Dof the tool engagement portion (B).