US Patent 9320290 Home and professional ice cream product making machine

An ice cream product making machine includes a main body, housing a refrigerating unit, and a secondary body, removably associated with the main body, including a mixing and cooling unit having a vertical axis interacting with the refrigerating unit, a lid allowing access to an interior and inside, a stirrer. The secondary body includes a hollow space surrounding the mixing and cooling unit and integral with it, containing a coolant to cool the mixing and cooling unit when the secondary body is associated with the main body, during machine operation, and to keep the mixing and cooling unit cool when the secondary body is separated from the main body.