Patent ID: 7703381

Claim:
A beverage extraction assembly for application to beverage extraction machines for extracting a beverage from a particulate substance contained in a cartridge, comprising: a support connectable to a water outlet of a beverage extraction machine; a cartridge holder removably mounted on said support for holding a cartridge containing a particulate substance, said cartridge comprising at least a first cartridge port protruding outwardly from its upper surface for receiving water under pressure; said support comprising a water inlet port connectable to said water outlet of the beverage extraction machine, for delivering said water to said first cartridge port, said water inlet port configured to receive said first cartridge port therein; said cartridge holder comprising a bottom aperture for providing an escape for the extracted beverage; said water inlet port of said support comprising a radial fluid-tight seal for sealing between said water inlet port and said first cartridge port during the beverage extraction when said first cartridge port is inserted into said water inlet port, so as to prevent the water from contaminating any internal component or surface of the extraction assembly and from lapping the outer surface of the cartridge.