Sump system having timed switching of plural pumps
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United States of America Patent
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Sep 12, 1995
Grant Date -
N/A
app pub date -
Mar 24, 1994
filing date -
Mar 24, 1994
priority date (Note) -
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status (Latency Note)
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Abstract
An electronic pump selector system uses a programmable processor to select one of a plurality of pumps to be energized in response to an appropriate feedback signal from the selected pump. A current limited feedback circuit is incorporated which provides a varying voltage in response to a level switch associated with a selected pump indicating a high fluid level. In response to the voltage feedback signal, the selected pump is energized for a predetermined period of time. Subsequently, another pump is selected. The next selected pump is energized also for a predetermined period of time in response to a varying voltage feedback signal therefrom. The next pump is then selected and the sequence continued.
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