A refrigeration system includes a housing and a plurality of pans removably positionable therein. A water chilling system is disposed within the housing and includes a compressor and a water reservoir housing a cooling coil disposed therein. A plurality of pipes are disposed inside and outside the water...http://www.google.se/patents/US7051543?utm_source=gb-gplus-sharePatent US7051543 - Refrigeration system including water chilling device