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. 02, 2015
Filed:
Mar. 02, 2009
Hajime Miyata, Shiga, JP;
Kenichi Kamon, Shiga, JP;
Youichi Itou, Nara, JP;
Daisuke Bessyo, Shiga, JP;
Ryuji Iwamoto, Nara, JP;
Hajime Miyata, Shiga, JP;
Kenichi Kamon, Shiga, JP;
Youichi Itou, Nara, JP;
Daisuke Bessyo, Shiga, JP;
Ryuji Iwamoto, Nara, JP;
Abstract
Detecting a leak, or the like, with high accuracy on the basis of pressure and a flow volume acquired during use of fluid is made possible. A volume of gas flowing through a flow pathis measured by a flow volume measurement unit, and pressure is measured by a pressure measurement unit. Measured flow data and measured pressure data are input to an analysis unit, to thus analyze following of a pressure change by a flow volume change. An amount of flow volume change responsive to an amount of pressure change of a predetermined level or more is classified into a plurality of ranges by means of a predetermined threshold value, and a following flow value change is determined on the basis of determination conditions of the respective ranges of amounts of flow volume changes.