[특허]Fluid metering pump

[미국특허] Fluid metering pump 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F04B-045/00
출원번호	US-0978346 (1992-11-18)
발명자 / 주소	Holtermann Ludwig K. (Old Saybrook CT) Haupt Jodie D. (North Guilford CT) Hanford Samuel R. (Ivoryton CT)
출원인 / 주소	The Lee Company (Westbrook CT 02)
인용정보	피인용 횟수 : 62 인용 특허 : 0

초록 ▼

A pump for dispensing accurately measured amounts of fluid has a one way check valve in the flow path on the upstream side of a pump chamber and a one way check valve in the flow path at the downstream side of the pump chamber which is of variable internal volume. A flow passage provides fluid communication from the upstream check valve to the pump chamber and enters the pump chamber by a centrally located opening that is surrounded by a valve seat. One wall of the pump chamber is a flexible and elastic diaphragm that is attached to the plunger portion of a solenoid actuator. The plunger and diaphragm are biased by a spring acting upon the plunger such that, in the absence of excitation of the solenoid coil, the diaphragm is biased against a valve seat, preventing flow through the pump. All components exposed to the fluid media are formed of chemically inert, non-corrosive substances and the pump can be sized to accurately dispense fluids in increments of as little as 10 microliters, representing the volume of fluid that passes through the pump in one cycle of the solenoid actuator.

대표청구항 ▼

A pump comprising: (a) An inlet port and an outlet port with a pump chamber there between, said pump chamber comprising a fixed wall and a diaphragm formed of elastomeric material; (b) A first valve means for allowing a fluid media to enter the pump by flowing into the pump chamber from the inlet port while preventing the fluid media from exiting the pump by flowing from the pump chamber into the inlet port; (c) A second valve means for allowing fluid media to exit the pump by flowing into the outlet port from the pump chamber and preventing fluid flow into the pump chamber from the outlet port; (d) Means for alternately increasing and decreasing pressure within the pump chamber by moving the diaphragm alternately toward and away from the fixed wall of the pump chamber; and (e) an opening in the pump chamber wall communicating with the inlet port, which opening is surrounded by an annular valve seat raised above the surface of the pump chamber wall towards the interior of the pump chamber.

이 특허를 인용한 특허 (62) 인용/피인용 타임라인 분석

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Massaro,Peter; Geldhof,Benjamin F., Method and apparatus for handling small volume fluid samples.
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Reggiardo, Christopher V.; Etter, Brad D., Method and apparatus for providing data communication in data monitoring and management systems.
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Reggiardo, Christopher V., Method and apparatus for providing peak detection circuitry for data communication systems.
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Hayter, Gary Alan; Budiman, Erwin Satrya; Doniger, Kenneth J.; Mazza, John Charles, Method and system for dynamically updating calibration parameters for an analyte sensor.
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Hayter, Gary; Budiman, Erwin S.; Doniger, Kenneth J.; Mazza, John C., Method and system for dynamically updating calibration parameters for an analyte sensor.
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Reggiardo, Christopher V.; Sloan, Mark K., Method and system for providing data management in data monitoring system.
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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

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[미국특허] Fluid metering pump 원문보기