US Patent 9801494 Capsule adapter and system using said capsule adapter

A capsule adapter (1) is described, for use in a beverage producing machine. The capsule adapter comprises: a capsule receptacle (3) for housing a capsule (C) and having an apertured bottom wall (3B); a first piercer (19) arranged in the capsule receptacle (3); a cover (5) for closing the capsule receptacle (3), the cover having at least one water-inlet port (37); a second piercer (27) arranged on the cover (5). The capsule adapter is configured for being introduced in a brewing chamber of a beverage producing machine, with a capsule housed therein.