Refrigeration – Automatic control – Refrigeration producer
Reexamination Certificate
2005-03-15
2005-03-15
Tanner, Harry B. (Department: 3744)
Refrigeration
Automatic control
Refrigeration producer
C062S442000
Reexamination Certificate
active
06865900
ABSTRACT:
A temperature control method for a refrigerator includes providing a valve device, in which an inflow port where a refrigerant flows into, at least two outflow ports having a first outflow port and a second outflow port where the refrigerant flows out, and a valve element for performing opening/closing of the outflow ports are positioned in a sealed space. The method also includes providing a valve element drive device for driving the valve element. The method further includes controlling the valve element drive device, at the time a power source of the refrigerator is turned on, to reciprocate between a first mode as an OPEN-CLOSE mode and a second mode on a CLOSE-OPEN mode until a temperature in a first chamber where the refrigerant is supplied through the first outflow port, and a temperature in a second chamber where the refrigerant is supplied through the second outflow port, are lowered to reach to a prescribed temperature.
REFERENCES:
patent: 1523112 (1925-01-01), Fitz Gerald
patent: 2133949 (1938-10-01), Buchanan
patent: 2576663 (1951-11-01), Atchison
patent: 5465591 (1995-11-01), Cur et al.
patent: 6067815 (2000-05-01), James
patent: 6370895 (2002-04-01), Sakuma et al.
Hara Tetsuhiko
Ozawa Shigeru
Hogan & Hartson LLP
Sankyo Seiki Mfg. Co. Ltd.
Tanner Harry B.
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