US Patent 10919752 Refrigerator with carbonated drink spout

Improvements to a refrigerator with carbonated drink spout that provides a drink at the exterior of the door of the refrigerator. The improvement allows people with different tastes to select a flavor syrup cartridge, insert the flavor syrup in a external port in the door of the refrigerator and dispense the beverage using fluids that are chilled by the refrigerator. It frees the interior space of the refrigerator that is used to store cold flavored water and carbonated beverages. The refrigerator includes an internal CO2 tank and separate reservoirs of refrigerated flat and refrigerated carbonated water. The delivery system is flushed with each use to eliminate cross contamination of flavors or syrups.