Abstract: A machine for producing and dispensing cold or iced beverages comprises a plurality of beverage-containing tanks (11). Each tank is provided with an evaporator (12) for a refrigerating circuit and a mixer (13). The evaporators are connected with one and the same compressor (15) by connection and controlled-shutoff valves (16). The machine comprises a control system (22) receiving information (23, 24) about the temperature and/or density of the beverage in each tank and sending enable or cut-off signals respectively to the valves (16), which signals are distributed cyclically and in time so as to have a sequential enable of the valves themselves. In each enable sequence each valve is enabled for a time which is a function of the difference between the temperature and/or density detected in the associated tank and the predetermined density and/or temperature to be reached in such a tank.

Abstract: An iced-beverage making machine comprises a tank (11) to contain the beverage, a mixer (12) to stir the beverage in the tank and a refrigerating circuit (14) to cool the beverage in the tank. The mixer is connected by a magnetic joint to a movement reduction motor (13). The magnetic joint comprises a driving portion (16) which is provided with a crown of first magnets (22) and is connected to the reduction motor (13), and a driven portion (17) which is provided with a crown of second magnets (21) and is connected to the mixer and magnetically driven in rotation by the driving portion. Close to the two magnet crowns there is the presence of means (23, 24) for detecting the angular phase displacement of the two crowns relative to the angular position of maximum attraction between the magnets, the detecting means sending a disabling signal (26) to the refrigerating circuit when the detected angular phase displacement exceeds a preestablished value.

Abstract: A machine for producing and dispensing cold or iced beverages comprises a plurality of beverage-containing tanks (11). Each tank is provided with an evaporator (12) for a refrigerating circuit and a mixer (13). The evaporators are connected with one and the same compressor (15) by means of connection and controlled-shutoff valves (16). The machine comprises a control system (22) receiving information (23, 24) about the temperature and/or density of the beverage in each tank and sending enable or cut-off signals respectively to the valves (16), which signals are distributed cyclically and in time so as to have a sequential enable of the valves themselves. In each enable sequence each valve is enabled for a time which is a function of the difference between the temperature and/or density detected in the associated tank and the predetermined density and/or temperature to be reached in such a tank.

Abstract: An iced-beverage making machine comprises a tank (11) to contain the beverage, a mixer (12) to stir the beverage in the tank and a refrigerating circuit (14) to cool the beverage in the tank. The mixer is connected by a magnetic joint to a movement reduction motor (13). The magnetic joint comprises a driving portion (16) which is provided with a crown of first magnets (22) and is connected to the reduction motor (13), and a driven portion (17) which is provided with a crown of second magnets (21) and is connected to the mixer and magnetically driven in rotation by the driving portion. Close to the two magnet crowns there is the presence of means (23, 24) for detecting the angular phase displacement of the two crowns relative to the angular position of maximum attraction between the magnets, the detecting means sending a disabling signal (26) to the refrigerating circuit when the detected angular phase displacement exceeds a preestablished value.

Abstract: A machine for preparing and delivering frozen beverages, such as water-ices, comprises a tank (12) for holding and refrigerating the beverage, in which there is an evaporator (16) of a refrigerating circuit and a mixing propeller (18) the rotation axis (19) of which is magnetically coupled, through a tank wall (28), with the rotation axis of an electric reduction motor (21). The magnetic coupling is formed of a first magnetic set (22) external to the tank and driven in rotation by the rotation axis of the reduction motor, and a second magnetic set (23) internal to the tank and connected to the propeller rotation axis. The first and second sets face each other on opposite faces of the tank wall to be magnetically coupled through said wall, the first set (22) thereby driving in rotation the second set (23).

Abstract: A machine for cooling and dispensing a product substantially behaving like a fluid, such as beverages or water-ice, comprises a base (11) and a tank (12) for treatment of the product to be dispensed. The tank is positioned on the base in a removable manner and heat exchange means (14) and a powered stirring element (15) are inserted thereinto. Also arranged in the tank (12) is a level probe (19) connected with control means (25) of the product level in the tank. The probe (19) has one detecting end (20) within the tank and an electrical-contact area (23) disposed on an external wall of the tank (12). Additionally, the base (11) bears an electrical-contact element (24) connected to the control means (25). On mounting of the tank (12) on the base (11), the contact area (23) of the probe (19) comes into electrical contact with the contact element (24) on the base so that the probe (19) is automatically connected in a detachable manner to the control means (25).

Abstract: A machine for the production of granita and in particular of the type called Sicilian granita comprising a container with a predominately horizontal development in which rotate motorized means for stirring the mixture contained therein in contact with a wall chilled by a refrigerating circuit and means of delivery of said mixture from said container. Said chilled wall is cylindrical in form and said means of stirring the mixture comprise a first rotating cylindrical screw propeller placed inside and axially with said cylinder and a second rotating cylindrical screw propeller placed axially with and wound externally around said cylinder, said screw propellers being rotated by a motor to impart opposed thrusts to the mixture so as to bring about circulation of the liquid in one direction inside the cylinder and the opposite direction outside thereof.The mixture container is accomplished in a single piece preferably of transparent material and completely removable from the machine to facilitate cleaning.

Abstract: A refrigerated beverage dispenser having a base supporting a container housing a device for circulating and whipping a beverage. An evaporator is located in the container while the refrigerator unit thereof is housed within the base, along with a motor and a magnetic transmission for driving a circulating and whipper device within the container. The impeller is rotatably mounted upon a pin in a housing chamber of the container and includes a plurality of ports associated with pipes for both circulating the beverage within the container and dispensing the beverage outside of the container. One of the pipes is connected to a port of the impeller housing and has a non-return valve which selectively regulates fluid communication between the container and the housing chamber. Another pipe connnects the impeller housing to the container exterior for dispensing the beverage.