Patent ID: 7237566

Claim:
A device for cleaning and/or disinfecting a keg coupler which has a collar-like lower section with segment-like projections, the lower section being provided on its periphery with a cylindrical external peripheral surface and being provided on the inside with a recess which is formed by an axially recessed radial bearing surface, a cylindrical internal peripheral surface, a lower radial surface, and a peripheral surface divided into segments, and with an adapter onto which the keg coupler can be fitted, the adapter comprising a cleaning liquid applying unit adapted to apply a cleaning liquid to a surface of the recess, wherein the adapter comprises an annular sealing insert, into which the keg coupler can initially be fitted with the cylindrical external peripheral surface in a loose state in a first operating position and can then be sealed in a liquid-tight manner in a second operating position, in such a way that a cavity is formed which is delimited at least by the radial bearing surface, the cylindrical internal peripheral surface, the lower radial surface, the peripheral surface divided into segments, and a surface of the adapter, and wherein the applying unit is connected to the cavity.