Pumping device comprising two suction inlet holes with application to a subhorizontal drain hole
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United States of America Patent
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-
Sep 5, 1995
Grant Date -
N/A
app pub date -
Mar 28, 1994
filing date -
Mar 29, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The present invention relates to a pumping device comprising two suction inlet holes spaced a predetermined distance apart by an extension tube. In a variant, the pumping device comprises two pump barrels cooperating each with the two inlet holes. In another variant, the pumping device comprises a pump barrel and control means for controlling the flow rates of the effluents coming from the two inlet holes. The pumping device is used in a subhorizontal drain hole.
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Cited Art Landscape
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