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:
Jul. 05, 2005
Filed:
Sep. 13, 2002
Shoji Kitanoya, Aichi, JP;
Norihiko Nadanami, Aichi, JP;
Tomonori Kondo, Aichi, JP;
Masaya Watanabe, Aichi, JP;
Noboru Ishida, Gifu, JP;
Shoji Kitanoya, Aichi, JP;
Norihiko Nadanami, Aichi, JP;
Tomonori Kondo, Aichi, JP;
Masaya Watanabe, Aichi, JP;
Noboru Ishida, Gifu, JP;
NGK Spark Plug Co., Ltd., Aichi, JP;
Abstract
A hydrogen gas sensor is configured such that an O-ringis disposed within a measurement chamberin order to seal against a first support elementand against a proton conduction layerThis O-ringassumes the form of a rectangular frame that surrounds a first electrodeand a substantially circular cross section, and is elastic, heat resistant, and durable. A first metal plateand a second metal plateare disposed from the outside on opposite support elementsand, respectively. The hydrogen gas sensor of the present embodiment has a pair of right-hand and left-hand through-holesformed therein so as to extend along the thickness direction thereof. Boltsare inserted into the corresponding through-holesBy fastening the metal platesandfrom the outside by means of the boltsand nutsthe opposite support elementsandare fastened, thereby clamping the entire hydrogen sensor in a unitary condition.