US Patent 7533603 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 outer member defining a storage chamber in which is stored the one or more beverage ingredients and an inner member having a discharge spout forming an outlet for outflow of beverage formed from the one or more beverage ingredients, characterised in that the inner member forms a load-bearing member.