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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.:

US 11359995 B1

PDFFull Text
Date of Patent:
Jun. 14, 2022

Filed:

Jan. 24, 2019

Gas sensor

Applicant:

Ngk Spark Plug Co., Ltd., Nagoya, JP;

Inventors:

Kensuke Mizutani, Aichi, JP;

Daisuke Miyata, Nagoya, JP;

Kengo Simizu, Kitanagoya, JP;

Naoyuki Sugihara, Iwakura, JP;

Yasuhiro Fujii, Kitanagoya, JP;

Assignee:

NGK SPARK PLUG CO., LTD., Aichi, JP;

Attorney:

Sughrue Mion, PLLC

Primary Examiner:

Jermie E Cozart

Int. Cl.
CPC ...
B21K 21/08 (2006.01); B21D 53/00 (2006.01); B21J 5/00 (2006.01); B23P 11/00 (2006.01); G01M 15/02 (2006.01); G01M 15/10 (2006.01); B23P 19/04 (2006.01); B23P 21/00 (2006.01); G01N 27/407 (2006.01); B21J 5/12 (2006.01); G01D 11/24 (2006.01); B21J 5/02 (2006.01);
U.S. Cl.
CPC ...
G01M 15/02 (2013.01); B21D 53/00 (2013.01); B21J 5/00 (2013.01); B21K 21/08 (2013.01); B23P 11/005 (2013.01); B23P 19/04 (2013.01); B23P 21/00 (2013.01); G01M 15/104 (2013.01); B21J 5/008 (2013.01); B21J 5/02 (2013.01); B21J 5/12 (2013.01); G01D 11/245 (2013.01); G01N 27/4077 (2013.01); G01N 27/4078 (2013.01);
Abstract

A gas sensor () has a sensor element () extending in an axis direction and having, at a top end side thereof, a detecting portion () that detects gas; a stainless steel-made tubular metal shell () enclosing a radial direction periphery of the sensor element () and holding the sensor element () and having (a) a brim portion () protruding outwards in a radial direction and (b) a crimp portion () formed at a rear end side of the metal shell (); and a sealing member () placed between the sensor element () and the metal shell (). The crimp portion () is bent inwards in the radial direction and pressing down a rear end of the sealing member () toward the top end side. A Micro Vickers hardness of a cross section along the axis direction of the crimp portion () is 140 to 210 Hv.

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