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|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||222/207 ; 222/321 ; 222/341 ; 222/380|
|발명자 / 주소||
|인용정보||피인용 횟수 : 19 인용 특허 : 10|
A manually-operated pump dispenser for dispensing liquids from a container. The dispenser includes a one-piece housing coupled to the container, a dip tube extending from the housing into the container, a one-piece pump member which is slidably supported in the housing and which has a trigger extending therefrom and a nozzle member at the end, a pair of one-way valves supported by the housing and pump member, and a resilient, annular biasing member which engages the housing and pump member, has a stretchable portion providing a restoring force to the pum...
In a manually-operated pump dispenser including a housing adapted to be coupled to a liquid-containing bottle and having a fluid passageway, a dip tube extending from the passageway into the bottle and a vent for venting the bottle to the atmosphere; a pump member having a fluid passageway with an exit orifice, and a finger engaging element, the pump member being slidably engaged with the housing; and a pair of one-way valves located along the pump member and the housing fluid passageways, the improvement comprising: a one-piece, annular resilient member...