Japan, March 5 -- TOKYO GAS CO LTD,PANASONIC HOLDINGS CORP,TOYO GAS METER KK,OSAKA GAS CO LTD,TOHO GAS CO LTD has got intellectual property rights for 'GAS CUTOFF DEVICE.' Other related details are as follows:
Application Number: JP,2022-058850
Category (FI): G01F3/22@B
Stage: PROBLEM TO BE SOLVED: To provide a gas cutoff device capable of preventing erroneous determination as a leakage due to fluctuations in instantaneous flow rate due to pulsation or breathing phenomena.SOLUTION: The gas cutoff device is configured so as to accumulate at predetermined intervals the flow rate values calculated by a flow rate calculation unit 3 from the instantaneous flow rate measured by a flow rate measurement unit 2, and a flow rate existence/absence determination section 6 determines whether the flow rate exists/absent based on the result of a first determination unit 4 that determines whether the integrated flow rate value is equal to or higher than a predetermined flow rate and the result of a second determining unit 5, which determines whether the continuous time in which the integrated flow rate value of the first determining unit 4 is less than the predetermined flow rate is longer than the unit integration period.SELECTED DRAWING: Figure 1 (Grant)
Filing Date: March 31, 2022
Publication Date: Oct. 16, 2023
The original document can be viewed at: https://www.j-platpat.inpit.go.jp/p0100
Disclaimer: Curated by HT Syndication.
