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:
Jun. 26, 2007
Filed:
Jul. 13, 2004
Hisaharu Nishio, Nagoya, JP;
Takashi Nakao, Nagoya, JP;
Kazuhiro Kouzaki, Nagoya, JP;
NGK Spark Plug Co., Ltd., Aichi-ken, JP;
Abstract
An object is to provide a gas sensor which can suppress positional shift of a to-be-held member such as a gas detection element, as well as a method of manufacturing the gas sensor. A gas sensor () includes a gas detection element (), a metallic shell (), a plate packing (), and a first packing (). A proximal end surface () of a projection () of the gas sensor element () and a central inner circumferential surface () of the metallic shell () form an acute-angle clearance (). The first packing (), which has a wedge-like cross section, is disposed in the clearance () such that the first packing () is pressed against the proximal end surface () of the projection () of the gas sensor element () and the central inner circumferential surface () of the metallic shell ().