Multi-tank machine for producing and dispensing cold or iced beverages and method of operating and controlling the same
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United States of America Patent
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Apr 15, 2003
Grant Date -
Dec 13, 2001
app pub date -
May 29, 2001
filing date -
Jun 7, 2000
priority date (Note) -
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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.
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