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|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||222/207 ; 222/211 ; 222/212 ; 222/383|
|발명자 / 주소||
|인용정보||피인용 횟수 : 16 인용 특허 : 2|
A metering pump for discharging metered quantities of liquid and/or low viscosity materials, in particular pasty materials, on bottle-type or can-type containers has a bellows sealed between two coaxial housing parts of dimensionally stable plastic. The housing parts are telescopically movable relative to one another, and provided at each of its two ends with respective inlet and outlet pump valves. Each pump valve has an axially mobile closing element. On its discharge end, the bellows has an integrally molded annular valve seat face, provided with a pa...
A metering pump for the delivery of metered quantities of liquid as well as low viscosity pasty substances from an article such as a bottle and a can, comprising first and second telescopically moving housing parts of dimensionally stable plastic material; a bellows of a flexible plastic arranged in sealing engagement between said coaxially telescopically movable housing parts; inlet and outlet pump valves arranged at respective adjacent ends of said bellows, said pump valves each having a valve seat ring surface and a closing member which is movable axi...