Stand-Alone Pump Shut-Off Controller
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United States of America Patent
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N/A
Issued Date -
Jan 7, 2010
app pub date -
Jan 9, 2009
filing date -
Jan 9, 2008
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Embodiments of the invention provide a stand-alone controller and a method for controlling a pump motor driven by an alternating current source. The stand-alone controller includes a power terminal for connection with the alternating current source and a load terminal for connection with the pump motor. The stand-alone controller further includes an enable switch to form a power line carrying power from the alternating current source to the pump motor. The stand-alone controller can store a first current being drawn through the power line by the pump motor when a control switch is actuated. A state of the enable switch is based on a comparison of the first current to a second current being drawn through the power line by the pump motor.
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