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. 23, 2012
Filed:
Jul. 16, 2009
Naoki Yamada, Iwakura, JP;
Takayoshi Atsumi, Konan, JP;
Takeo Mizui, Konan, JP;
Hideya Inukai, Ogaki, JP;
Yoshiyasu Fujii, Nagoya, JP;
Naoki Yamada, Iwakura, JP;
Takayoshi Atsumi, Konan, JP;
Takeo Mizui, Konan, JP;
Hideya Inukai, Ogaki, JP;
Yoshiyasu Fujii, Nagoya, JP;
NGK Spark Plug Co., Ltd., Aichi, JP;
Abstract
A sensor including a tubular casing having an open rear end; and a first elastic member having a through hole so as to introduce ambient air into the casing and disposed so as to block the rear end opening of the casing. The sensor further includes: a holding inner tube that closely contacts an inner peripheral surface of the through hole; a ventilation filter that has permeability and a waterproofing property, the ventilation filter including a filter blocking portion that blocks a rear end opening of the holding inner tube, and a filter tubular portion connected to the filter blocking portion and surrounding at least a portion of an outer peripheral surface of a rear end portion of the holding inner tube in the peripheral direction; and a holding outer tube that includes a ventilation hole, an outer tube blocking portion covering the filter blocking portion, and an outer tube tubular portion connected to the outer tube blocking portion and surrounding at least a portion of the filter tubular portion in the peripheral direction.