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:
Apr. 14, 2015
Filed:
Nov. 14, 2011
Masao Tsuzuki, Kakamigahara, JP;
Takaya Yoshikawa, Kasugai, JP;
Masao Tsuzuki, Kakamigahara, JP;
Takaya Yoshikawa, Kasugai, JP;
NGK Spark Plug Co., Ltd., Aichi, JP;
Abstract
A gas sensor including a detecting element; and a protector having a tube portion surrounding the detecting portion, and a bottom portion the protector having a first opening disposed at the tube portion and a second opening at the bottom portion. The bottom portion includes first and second bottom wall portions, the second bottom wall portion protrudes toward the leading end side, and at least a part of the inner face thereof is located at the leading end side with respect to the outer face of the first bottom wall portion. The second opening is provided on a side opposite the inner space of the tube portion in a communication passage formed by the inner face of the second bottom wall portion, and an opening area of the second opening is larger than an area of the largest imaginary circle that can be placed inside the first opening.