Pump with side surface coating
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United States of America Patent
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Nov 29, 2011
Grant Date -
Jul 13, 2006
app pub date -
Dec 12, 2005
filing date -
Dec 18, 2004
priority date (Note) -
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status (Latency Note)
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Abstract
In a preferred embodiment of the present invention, a positive-displacement pump, in particular a vane cell pump, having a pump element, in particular a rotor, which is situated within a contour ring and rotatable between two side surfaces where a limited coating is located on at least one of the side surfaces.
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