Self contained pump electrical equipment power supply integrated into sealing device
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United States of America Patent
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Issued Date -
Sep 20, 2007
app pub date -
Mar 16, 2006
filing date -
Mar 16, 2006
priority date (Note) -
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Abstract
The invention provides a pumping system or other suitable rotating equipment having a self-contained pump electrical equipment power supply, featuring a shaft sealing device having an AC power generating device that form part of the self-contained pump electrical equipment power supply for supplying local AC electrical power to a circuit or other suitable pump instrumentation and monitoring equipment of the pumping system or other suitable rotating equipment. The sealing device may include a lip seal, packing, a laby seal, or a mechanical seal. The sealing device may also include an electrical connector that is used to connect the sealing device to the circuit or other suitable pump instrumentation and monitoring equipment. The circuit or other suitable pump instrumentation and monitoring equipment may include a circuit board that identifies a zero voltage crossing for speed, rectifies the AC voltage and regulates the DC voltage to required voltage levels needed for transducers, monitoring and communications equipment, or other suitable equipment.
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