Patent ID: 9375108
Filing Date: 2016-06-28
CPC Classification: A47G,A61J

Claim Text:
1. A dosing device for administering doses of a free-flowing composition together with a free-flowing carrier medium, comprising: a storage chamber for the composition, said storage chamber communicating with a surroundings via at least one inlet opening; a plunger tube that is disposed in the storage chamber for sealed displacement between a rest position in which the plunger tube is completely inserted in the storage chamber, and a dosing position in which the plunger tube is removed from the storage chamber along a path that corresponds to a desired amount of the composition to be dispensed, wherein the plunger tube is hollow and opens a fluid connection between a through-opening arranged between the storage chamber and an inside of the plunger tube; and a suction opening disposed at a free end of the plunger tube, said free end projecting out of the storage chamber, wherein a one-way valve is disposed in the through-opening, the one-way valve opening a fluid path from the storage chamber into the inside of the plunger tube and shuts off said fluid path in the opposite direction, and wherein moving the plunger from the rest position to the dosing position provides a pressure in the storage chamber which is lower than a pressure of the surroundings so that the free-flowing composition present in the surroundings flows through the inlet and into the storage chamber, and the free-flowing composition in the storage chamber can be dosed through the fluid connection and suction opening.