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:
Dec. 23, 2014
Filed:
Mar. 29, 2012
Kazuo Takahashi, Nagano, JP;
Aki Sudou, Nagano, JP;
Takayuki Hayashi, Nagano, JP;
Citizen Finetech Miyota Co., Ltd., Tokyo, JP;
Abstract
A cylinder internal-pressure sensor is provided with a housing unitcomposed of an outer cylinder portionand an inner cylinder portionhaving elastic portionsandhaving elasticity in an axial direction Fs formed on an intermediate portion Xm in the axial direction Fs; a pressure-receiving ring block portionhermetically fixed between the outer cylinder portionand the inner cylinder portionlocated on the fronts of the elastic portionsandand faced with the rear of the elastic portionsandthrough the elastic portionsandand having a front surfaceas a pressure receiving surface; at least one or more pressure detection elements, . . . in contact with one electrode portionprovided on a rear surfaceof this pressure-receiving ring block portion, given the internal pressure Pc by the pressure-receiving ring block portionand arranged at predetermined positions in a peripheral direction Ff; and a support ring block portionfixed between the outer cylinder portionand the inner cylinder portion, having a front surfaceas a support surface supporting the pressure detection elements. . . and serving also as the other electrode