DEVICE FOR DOSING A METERED AMOUNT OF A POWDERED PRODUCT AND BEVERAGE MACHINE USING SUCH A DEVICE

摘要

The invention concerns a dosing device for dosing a metered amount of a powdered product comprising : - a fixed body (2) made of at least a disc presenting a single pierced aperture (5), - a rotary top disk (1) disposed on the top of the fixed body (2) and presenting a taking out pierced aperture (4), - a rotary bottom disk (3) disposed on the bottom of the fixed body and presenting a discharging pierced aperture (6), - a rotary shaft (7) connecting the bottom disk (1) and the top disk (3), wherein in the stand-by position of the device the metered pierced aperture (5) is empty and closed to the atmosphere. The invention also concerns a beverage preparation apparatus implementing such a dosing device.