US Patent 7287461 Cartridge for the preparation of beverages

A cartridge containing one or more beverage ingredients and being formed from substantially air- and water-impermeable materials, the cartridge comprising an inlet for the introduction of an aqueous medium into the cartridge and an outlet for discharge of a beverage produced from the one or more beverage ingredients, wherein the cartridge comprises an outer member and an inner member conjoined on assembly with the outer member, characterized by the inner member comprising a discharge spout defining the outlet of the cartridge.