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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0148878 (1993-11-08) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 10 인용 특허 : 0 |
A vibration responsive gas shut-off valve assembly which is highly effective in conditions which give rise to excessive vibration such as earthquakes and the like. The shut-off valve assembly is inserted into a gas line leading from a source of gas to an interior of a building such a dwelling struct
A vibration responsive gas shut-off valve which is operable to shut off gas flow through a gas line in response to a vibration imposed on the line which exceeds a predetermined threshold level, said valve comprising: a) a somewhat spherical gas flow control element located in a gas conduit and havin
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