FOAM PUMP
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United States of America Patent
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Issued Date -
Oct 27, 2016
app pub date -
Apr 20, 2016
filing date -
Apr 21, 2015
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Abstract
A foam pump comprising a pump bellows, wherein the pump bellows have a neck at the output side, wherein the neck has a valve rod having a central bore for forming a mixing chamber, wherein the mixing chamber is in communication with the air space of the pump bellows by at least one air outlet opening, wherein a closable air inlet opening to the air space of the pump bellows is provided in the region of the neck of the pump bellows, wherein the mixing chamber is in communication with the medium chamber by a closable medium inlet opening, wherein the medium chamber is in communication with a medium container through a medium adjustment opening.
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