Liquid purification or separation – Filter – With pump – gas pressure – or suction source
Reexamination Certificate
2006-06-20
2006-06-20
Prince, Fred G. (Department: 1724)
Liquid purification or separation
Filter
With pump, gas pressure, or suction source
C210S315000, C210S460000, C210S489000, C055S511000
Reexamination Certificate
active
07063791
ABSTRACT:
A pump inlet screen for a submersible pump adapted to be inserted into a well bore. The screen includes an inner support sleeve having openings therethrough and an outer mesh screen member that overlies the out surface of the inner support sleeve. A polymer coated reinforcing ring is secured to one end of the screen and includes spaced, radially-extending threaded openings for receiving set screws to permit securement of the inlet screen to the outer surface of a cylindrical housing. The opposite end of the inlet screen from the reinforcing ring includes a sealing ring having an inwardly-extending, sloping lip seal to engage the outer surface of a cylindrical housing.
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Mangels Alfred J.
Prince Fred G.
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