Patent ID: 8889203
Filing Date: 2014-11-18
Classification: B65D

Abstract:
1. A cartridge containing one or more beverage ingredients, said cartridge comprising: an inlet for the introduction of an aqueous medium into the cartridge; an outlet for a beverage produced from said one or more beverage ingredients; an aperture in a beverage flow path linking the inlet to the outlet which generates, in use, a jet of beverage; an expansion chamber located downstream of the aperture, wherein the expansion chamber comprises an expansion chamber inlet in an upstream wall for receiving the jet of beverage and an expansion chamber outlet; and an air inlet located in the expansion chamber in the vicinity of the expansion chamber inlet; wherein the expansion chamber has a cross-sectional area which is perpendicular to the direction of flow of the jet of beverage and parallel to the upstream wall, and said cross-sectional area decreases in a downstream direction from the expansion chamber inlet to the expansion chamber outlet, and the cross-sectional area and profile of the expansion chamber outlet are sized to be substantially the same as the cross-sectional area and profile of the beverage stream as it passes through the outlet.