The utility conduits (electric conductors and water conduit) of a door mounted dispenser are conducted from below the cabinet to the inside of the door through an inflexible tube. One section of tube rests on a shelf under the refrigerator cabinet and a second section of the tube projects into the bottom...http://www.google.de/patents/US5263509?utm_source=gb-gplus-sharePatent US5263509 - Refrigerator with door mounted dispenser supply mechanism
