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. 04, 2013
Filed:
Dec. 20, 2010
Tetsuya Tabaru, Tokyo, JP;
Tetsuya Tabaru, Tokyo, JP;
Azbil Corporation, Tokyo, JP;
Abstract
A differential pressure transmitting device detects, through two pressure guiding tubes, a differential pressure that is generated when that which is to be measured, such as a liquid, a slurry, or a gas, that has fluctuation in the pressure thereof, passes through a differential pressure generating mechanism. A pressure guiding tube blockage diagnosing device comprises: a rising/falling frequency detecting portion for segmenting the differential pressure values detected by the differential pressure transmitting device into a plurality of intervals, and for detecting, for each interval, the rising/falling frequency of the fluctuation of the differential pressure; and an evaluating portion for comparing the rising/falling frequency of the fluctuation to a specific threshold value to evaluate the state of blockage of the pressure guiding tubes.