CAPACITIVE SENSOR AND METHOD AND APPARATUS FOR CONTROLLING A PUMP USING SAME
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United States of America Patent
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Issued Date -
Jun 20, 2013
app pub date -
Feb 15, 2013
filing date -
Mar 19, 2007
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
Methods relating to varying capacitance of a capacitive sensor and controlling a pump based on the level of a liquid. A pump controller for controlling the level of a liquid in a reservoir includes a controller and a capacitor. The capacitor is adapted to provide an activation signal to the controller when the liquid in the reservoir reaches a first predetermined level relative thereto.
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