Gas shutoff device

US8973602B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8973602-B2
Application numberUS-201013146300-A
CountryUS
Kind codeB2
Filing dateJan 25, 2010
Priority dateJan 26, 2009
Publication dateMar 10, 2015
Grant dateMar 10, 2015

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

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.

First claim

Opening claim text (preview).

The invention claimed is: 1. A gas shutoff device comprising: a shutoff unit connected to a gas supply pipe to supply or shut off gas; a control unit for controlling the shutoff unit; a flow rate measuring unit for measuring a flow rate of the gas; a pressure measuring unit for measuring pressure of the gas; a restoring unit for turning a gas shutoff state by the shutoff unit into a restoration state for passing the gas; and an external communication unit for allowing comm…

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What does patent US8973602B2 cover?
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…
Who is the assignee on this patent?
Yokohata Mitsuo, Panasonic Ip Man Co Ltd
What technology area does this patent fall under?
Primary CPC classification G01F15/007. Mapped technology areas include Physics.
When was this patent published?
Publication date Tue Mar 10 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).