[특허]Fluid pumping apparatus and system with leak detection and containment

Fluid pumping apparatus and system with leak detection and containment 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F04B-043/06
출원번호	US-0393142 (1989-08-11)
발명자 / 주소	Story Carl E. (Cupertino CA) Nichols Jerry A. (San Jose CA) Cady Byron C. (Gilroy CA)
출원인 / 주소	Systems Chemistry, Inc. (Milpitas CA 02)
인용정보	피인용 횟수 : 78 인용 특허 : 0

초록 ▼

A fluid pumping apparatus and system including a double acting diaphragm pumping device in which each pumping component has a pair of spaced apart diaphragms defining a containment chamber and all exposed surfaces in the pumping chamber and the containment chamber are made of an inert plastic material, a fluid sensor extending into each containment chamber for sensing the presence of unwanted fluids therein, and a pump control system for activating the pumping apparatus and responding to an output signal generated by either sensor to deactivate the pumping apparatus in the event of leakage of fluid into either containment chamber.

대표청구항 ▼

A fluid pumping apparatus for pumping ultra pure fluids and including means for detection and prevention of contamination of the fluids in the event of diaphragm failure, comprising: means forming a pump housing having an inlet and an outlet; a first pumping component formed within said housing and adapted to draw fluid into said inlet and to force fluid out of said outlet, said first pumping component including a first diaphragm means combining with said housing to form a first pumping chamber in communication with said inlet and said outlet, first generally annular spacer means having a first opening formed therein extending radially through one side thereof, and a second diaphragm means held in spaced apart relationship with said first diaphragm means by said spacer means and combining with said first diaphragm means and said spacer means to form a first containment chamber, said first and second diaphragm means and all interior surfaces forming said first pumping chamber and said first containment chamber being made of inert material; first sensor means extending into said opening and having a distal end surface disposed within said first opening and forming a closure for said first containment chamber, said first sensor means being operative to detect the presence of unintended fluid appearing in said first containment chamber as a consequence of the failure of said first diaphragm means and to generate a commensurate first output signal for transmission to a remote indicator; and first actuator means for reciprocatingly moving said first diaphragm means to cause fluid to be pumped through said first pumping chamber; the said pumping apparatus being characterized in that any failure of said first diaphragm means allowing pumped fluid to invade said first containment chamber will result in complete containment and no contamination of the invading fluid, immediate detection of the failure by said first sensor means, and annunciation of the failure by said first output signal.

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
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메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
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연합인증

Fluid pumping apparatus and system with leak detection and containment 원문보기

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Fluid pumping apparatus and system with leak detection and containment 원문보기

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