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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0772221 (1991-10-04) |
발명자 / 주소 |
|
출원인 / 주소 |
|
인용정보 | 피인용 횟수 : 16 인용 특허 : 0 |
A pressure responsive pilot control valve has a spool which is movable by a metal diaphragm sensing the pressure in a flowline. The spool includes two poppet seal rings mounted thereon, the poppet seal rings having concentric axes and which are used for opening and closing fluid ports. The fluid por
A pilot valve responsive to pressure changes comprising a base housing; an inlet in said base housing exposed to a pressure to be monitored; a diaphragm in said inlet within said base housing; a lower body operably connected to said base housing; a spool movable within a cavity in said lower body; i
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