[특허]Collapsible pump chamber having predetermined collapsing pattern

Collapsible pump chamber having predetermined collapsing pattern 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B67D-005/33
출원번호	US-0204122 (1994-03-01)
발명자 / 주소	Peterson Robert J. (Loveland OH) Stahley Robert E. (Middletown OH)
출원인 / 주소	The Procter & Gamble Company (Cincinnati OH 02)
인용정보	피인용 횟수 : 65 인용 특허 : 0

초록 ▼

A collapsible pump chamber, e.g., a bellows, for use with a liquid dispensing pump device is provided. The collapsible pump chamber includes a collapsing side wall which defines an internal volumetric portion of the pump chamber. The collapsing side wall has a structure which collapses in a predetermined pattern as the pump device is actuated. For example, the predetermined pattern of collapse could result in an initially relatively small volumetric change in internal volume per given stroke length followed by an increased volumetric change in internal volume per given stroke length. Thus, the pump device would initially provide very good control over the amount of product is dispensed; giving precise control during a partial actuation. However, the same pump device would also be capable of delivering a large volume of product during a complete actuation.

대표청구항 ▼

A manually actuated dispensing pump device for pumping a liquid from a supply container and discharging the liquid through a discharging orifice comprising: (a) a housing for sealing mounting the dispensing pump device onto the supply container, the housing including a portion of a liquid passage providing fluid communication from the supply container downstream to the discharge orifice; (b) an inlet valve located within the liquid passage, the inlet valve being closed to prevent liquid flow therethrough during periods of positive downstream pressure and being open during periods of negative downstream pressure; (c) an outlet valve located within the liquid passage, the outlet valve being open to permit liquid flow therethrough during periods of positive upstream pressure and being closed during periods of negative upstream pressure; and (d) a collapsible pump chamber defining a portion of the liquid passage downstream of the inlet valve and upstream of the outlet valve, the collapsible pump chamber including a pleated annular side wall defining an internal volumetric portion of the pump chamber and having a structure adapted to collapse in a predetermined pattern in response to a manually compressive force as the pump device is actuated, the predetermined pattern of collapse resulting in an initially relatively small volumetric change in the internal volumetric portion per given stroke length followed by an increased volumetric change in the internal volumetric portion per given stroke length, and the pleated annular side wall having a structure which is sufficiently resilient to expand the collapsible pump chamber upon removal of the manually compressive force.

이 특허를 인용한 특허 (65)

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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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연합인증

Collapsible pump chamber having predetermined collapsing pattern 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

이 특허를 인용한 특허 (65)

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Collapsible pump chamber having predetermined collapsing pattern 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

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이 특허를 인용한 특허 (65)

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