Methods and apparatus for determining when a water reservoir in

Details Methods and apparatus for determining when a water reservoir in Methods and apparatus for determining when a water reservoir in

1996-10-23

1997-12-16

Tapolcai, William E.

Refrigeration

Processes

Congealing flowable material, e.g., ice making

62233, 62340, 1375527, 417 63, F25C 100

Patent

active

056972229

ABSTRACT:
An ice making tray in a refrigerator is connected by a pump to a water reservoir located in the refrigerator. Once ice has been ejected from the tray and into a bin, the pump is activated for a preset period to re-fill the ice tray with water from the reservoir. Each time that the pump is activated, its time period of operation is automatically counted, and a running total of the counted time periods is automatically kept. That total is compared to a predetermined (reference) value representing a period of pump operation which causes the water in the tank to be reduced to a predetermined low level. When the running total reaches the reference value, an alarm is energized to warn a user that the reservoir should be re-filled.

REFERENCES:
patent: 5331994 (1994-07-01), Bryan, III et al.
patent: 5363093 (1994-11-01), Williams et al.

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