Refrigeration – Withdrawable liquid – e.g. – dispenser
Patent
1997-09-10
1999-01-05
Tapolcai, William E.
Refrigeration
Withdrawable liquid, e.g., dispenser
417 12, B67D 562
Patent
active
058551204
ABSTRACT:
An improved method and an apparatus for driving a pump motor for a refrigerator dispenser which are capable of feeding-back a water remaining in a discharge hose to a water container of the refrigerator by reversely rotating a pump motor after discharging the water from the water container, for thus preventing the water and the discharge hose from being polluted. The method includes the step of a first step for discharging a water from a water container through a discharge hose by driving a pump motor when a lever switch is turned on, a second step for stopping the operation of the pump motor when the lever switch is turned off and finishing the water discharge, and a third step for feeding back the water remaining in the discharge hose to a water container of the refrigerator after a predetermined time after the second step by reversely rotating the pump motor with respect to the rotation direction of the pump motor in the first step.
REFERENCES:
patent: 3773303 (1973-11-01), Griffith
patent: 4041944 (1977-08-01), Rhodes
patent: 5120199 (1992-06-01), Youngs et al.
patent: 5228594 (1993-07-01), Aslin
LG Electronics Inc.
Tapolcai William E.
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