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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0443396 (1995-05-17) |
우선권정보 | FR-0008412 (1992-07-03) |
발명자 / 주소 |
|
출원인 / 주소 |
|
인용정보 | 피인용 횟수 : 18 인용 특허 : 0 |
The invention concerns a ball or plug valve for dividing differential pressure into several stages during opening or closing operation of the valve. The valve (1) comprises a body (2) defining a housing (2′) for a movable member (3) consisting of a ball (4) or plug (5), and provided with a substanti
A valve comprising: a housing having an inlet and an outlet, and a flow passage extending from said inlet to said outlet; a closure member disposed in said housing, said closure member movable between open and closed positions, wherein in said closed position said closure member blocks said flow pas
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