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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0521951 (1983-08-10) |
발명자 / 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 | 피인용 횟수 : 8 인용 특허 : 1 |
A ball valve is disclosed herein having the portions of the ball surface removed which would be exposed to the fluid in the line when the valve is closed. These portions have bottoms of smaller diameter than the inside diameter of the seats for the ball. Therefore, the surface that has been exposed
1. A ball valve comprising a valve body and a ball member, said body having an inlet and an outlet with a flow passage between said inlet and said outlet and a ball receiving space in said flow passage between said inlet and said outlet in said flow passage, sealing means on said body surroundin
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