BEARING ISOLATOR OIL CONTAINMENT CUP
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United States of America Patent
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Issued Date -
Jan 21, 2016
app pub date -
Jul 18, 2014
filing date -
Jul 18, 2014
priority date (Note) -
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Abstract
An oil leak prevention device for use on a pump assembly having a non-contacting bearing isolator. The device has an annular surface having a central opening and a second surface extending from the first surface. The second surface covers an opening of an outside leak path between the rotor and the stator of the bearing isolator when the central opening is placed about the shaft of the pump. A method for preventing the leakage of oil from the pump assembly includes forming an oil containment cup and then placing the oil containment cup in contact with the bearing isolator such that a shaft of the pump assembly passes through the central opening and the second surface of the oil containment cup covers the opening of the leak path. Preferably, the cup is removed from the pump before operation of the pump.
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