Pumping device comprising two suction inlet holes with applicati

Details Pumping device comprising two suction inlet holes with applicati Pumping device comprising two suction inlet holes with applicati

1994-03-28

1995-09-05

Bertsch, Richard A.

Pumps

Expansible chamber type

Selectively usable plural inlet or outlet distributors for...

166313, F04B 2100

Patent

active

054474167

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.

REFERENCES:
patent: 2118539 (1938-05-01), Scheider et al.
patent: 2752855 (1956-07-01), Greene
patent: 3559740 (1971-02-01), Scaggs
patent: 4013385 (1977-03-01), Peterson
patent: 4815791 (1989-03-01), Schmidt et al.
patent: 5145004 (1992-09-01), Cornette

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