Invention Grant
- Patent Title: Gas shutoff device
- Patent Title (中): 燃气关闭装置
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Application No.: US13146300Application Date: 2010-01-25
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Publication No.: US08973602B2Publication Date: 2015-03-10
- Inventor: Mitsuo Yokohata
- Applicant: Mitsuo Yokohata
- Applicant Address: JP Osaka
- Assignee: Panasonic Intellectual Property Management Co., Ltd.
- Current Assignee: Panasonic Intellectual Property Management Co., Ltd.
- Current Assignee Address: JP Osaka
- Agency: Brinks Gilson & Lione
- Priority: JP2009-014014 20090126
- International Application: PCT/JP2010/000407 WO 20100125
- International Announcement: WO2010/084780 WO 20100729
- Main IPC: F16K37/00
- IPC: F16K37/00 ; G01F15/00

Abstract:
The present invention provides a gas shutoff device that prevents tampering procurement of gas or tamper due to stealing of the gas shutoff device.When an event, in which a gas pressure value of a pressure measuring unit 32 after a predetermined operation performed by a provider in installation is kept equal to or less than a first predetermined pressure value for a first predetermined time or longer and then the gas pressure value is kept equal to or more than a second predetermined pressure value for a second predetermined time or longer, happens at a predetermined number of times, the gas is shut off by a shutoff unit 39, communication with the outside is performed by an external communication unit 34, restoration is permitted by a restoring unit 38 while when there is a predetermined operation by the provider after the shutoff, the restoration permission state implemented by communicating with the outside by the predetermined operation by the provider and inputting communication of a response from the outside.
Public/Granted literature
- US20120000551A1 GAS SHUTOFF DEVICE Public/Granted day:2012-01-05
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