Anti-dripping system

Abstract

Anti-dripping system for a beverage dispensing device (100), the device comprising a container compartment (20) where a fluid (1) is stored, an air entry (13) through which air can be provided into the device (100) and a processing compartment (10) where fluid optionally together with air is pumped and possibly foamed, the processing compartment (10) comprising a pumping element (11) for pumping fluid and possibly air and a foaming element (12) for foaming fluid and air; the pumping element (11) comprising two moveable parts with respect to each other arranged in such a way that their relative movement in a certain direction pumps fluid by suction from the container compartment (20) and optionally also air from the air entry (13) respectively into the processing compartment (10); the foaming element (12) comprising at least a movable part and a static part movable with respect to each other, said parts driving the fluid optionally together with air through a gap (123) providing a certain level of shear stress which allows mixing and/or foaming, the pumping element (11) being configured to reverse the direction of the relative movement of the moveable parts after each dispensing operation so that any remaining fluid not dispensed is sent back to the container compartment (20) thus avoiding dripping.

Dependencies are inferred from the claim text.