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. 06, 2016
Filed:
Oct. 10, 2014
Applicant:
Ngk Spark Plug Co., Ltd., Nagoya-shi, Aichi, JP;
Inventors:
Assignee:
NGK SPARK PLUG CO., LTD., Aichi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 27/407 (2006.01);
U.S. Cl.
CPC ...
G01N 27/4077 (2013.01);
Abstract
In a gas sensor (), a base end portion () of a second outer wall () of an outer protector () is connected airtightly to a forward end portion () of a first inner wall () of an inner protector (), and relations of A≦B<C<D and (0.6×B)≦A are satisfied, wherein A represents the total opening area of a second outer hole () of the outer protector (), B represents the total opening area of a second inner hole () of the inner protector (), C represents the total opening area of a first inner hole (), and D represents the total opening area of a first outer hole.