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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
|
출원번호 | US-0811520 (1977-06-30) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 8 인용 특허 : 1 |
A device for controlling fluid flow wherein a movable ball at a central location on a concave surface of a support prevents upward movement of an actuating element, such as a valve stem to prevent a specific function, such as the closure of a valve, until the ball moves laterally along the concave s
A control device comprising: a housing having a fluid flow path therethrough; a valve in the housing and including a valve member provided with a valve stem, said valve member being movable from a first position closing said path to a second position opening said path; means biasing the valve and va
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