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:
Jun. 03, 2014
Filed:
Dec. 24, 2010
Hisao Ito, Yokosuka, JP;
Eiichiro Araki, Yokosuka, JP;
Kazuo Furuya, Tokyo, JP;
Japan Agency for Marine-Earth Science and Technology, Yokosuka-shi, Kanagawa, JP;
Abstract
To easily change internal pressure of a container according to a change in external pressure. In a strain gauge device, a pistonattached to a tubular opening portionA provided at a housing partslides in response to external pressure. Thereby varying the volumes of a regulator oil containing regionand a sensitive regionso as to achieve a balance with the external pressure, to change the internal pressure. Then, in the above-described strain gauge device, because the internal pressures of the regulator oil containing regionand the sensitive regionare changed according to a change in external pressure only by sliding of the piston, it is possible to easily perform regulation of the internal pressure. Further, because the above-described pressure balance mechanismis achieved with a simple configuration, it is possible to easily perform regulation of the external pressure and the internal pressure even in a high-temperature/high-pressure environment.