Patent ID: 8657159
Filing Date: 2014-02-25
Classification: B65D,G01F

Abstract:
1. A dispensing device for dispensing a liquid product from a container containing said product, the dispensing device comprising: a first chamber and a second chamber, the first chamber being longitudinally slidably movable in the second chamber and having an outer surface sealingly contacting an inner surface of the second chamber; an inlet passage including at least one inlet opening that establishes a fluid connection between the first chamber and an interior part of the container; an outlet passage adapted to deliver the liquid product being dispensed by the dispensing device, said outlet passage being fluidly connected to the second chamber; an intermediate valve positioned between an interior part of the first chamber and an interior part of the second chamber, the intermediate valve including a valve seat plate having at least one opening and a valve flapper plate having at least one flapper for covering the at least one opening in the valve seat plate, wherein said at least one flapper moves to an open position allowing the liquid product to flow from the interior space of first chamber to the interior space of the second chamber when the first chamber is slidably moved in a first longitudinal direction and moves to a closed position limiting flow of the liquid product from the interior space of the second chamber to the interior space of the first chamber when the first chamber is slidably moved in an opposite second longitudinal direction to dispense the liquid product from the second chamber through the outlet passage; wherein the first chamber and/or the second chamber includes an indication showing a volume of the second chamber depending on how far the first chamber is moved into the second chamber.