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:
Oct. 02, 2018
Filed:
Dec. 11, 2015
Denso Corporation, Kariya, Aichi-pref., JP;
Masatake Nakamura, Kariya, JP;
DENSO CORPORATION, Kariya, JP;
Abstract
A gas sensor includes a sensor device, a device-side insulator porcelain, an atmospheric side insulator porcelain, a housing, a seal disposed between the housing and the device-side insulator porcelain, and an atmospheric side cover. The atmospheric side cover includes a large-diameter portion, a small-diameter portion, and a shoulder portion formed therebetween. The shoulder portion presses a base end surface of the atmospheric side insulator porcelain to a front end side through a biasing member to place the atmospheric side insulator porcelain in contact with the device-side insulator porcelain. The shoulder portion is defined by a contact portion placed in contact with the biasing member and a detached portion separate from the biasing member to form a communication path which communicates between an outer space and an outside path. This avoids entry of measurement gas into an air atmosphere within the atmospheric side insulator porcelain to obtain correct sensor outputs, also avoids breakage of the atmospheric side insulator porcelain, and reduces the manufacturing costs.