Refrigeration – Automatic control – Of external fluid or means
Patent
1996-05-22
1998-02-03
Tapolcai, William E.
Refrigeration
Automatic control
Of external fluid or means
137392, 141198, F25D 1702
Patent
active
057132143
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). Further means (43) disables a filling-up action controlled by the level sensor, in case of lack or improper positioning of the sensor and/or the tank.
REFERENCES:
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patent: 3179920 (1965-04-01), McGinty
patent: 3437107 (1969-04-01), Waseleski, Jr.
patent: 4390793 (1983-06-01), John
patent: 4547768 (1985-10-01), Kulhavy
patent: 5529751 (1996-06-01), Chandler et al.
Tapolcai William E.
Ugolini S.P.A.
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