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. 27, 2009
Filed:
Aug. 02, 2007
Takashi Nakashima, Aichi, JP;
Yuichi Yamada, Aichi, JP;
Takashi Nakashima, Aichi, JP;
Yuichi Yamada, Aichi, JP;
NGK Spark Plug Co., Ltd., Aichi, JP;
Abstract
In a protector () for protecting a detecting portion () of a sensor element () of a gas sensor (), the opening area of individual inner introduction holes () and () formed in an inner protector () is 3.5 mmor less. In this manner, the amount and size of water droplets able to pass through the inner introduction holes () and () and to adhere to the sensor element () is restricted. In order to ensure good gas replaceability between the interior and the exterior of the inner protector () so as to attain quick gas response, the total opening area of the inner introduction holes () and () is 10 mmor more.