Reciprocating pump

Details Reciprocating pump Reciprocating pump

1994-03-08

1995-05-02

Bertsch, Richard A.

Pumps

Expansible chamber type

Bellows-type chamber

4175551, F04B 45033

Patent

active

054113814

ABSTRACT:
A pump submersible in a well casing having fluid therein and comprising a reciprocating cylinder located within a pump housing and having a rod and piston which alternately draws the fluid into a sealed region of the pump housing through a one-way valve and then discharges this fluid from this sealed region through a one-way valve connected to discharge tubing. The sealed region of the pump housing can be defined by the end of the reciprocating piston or it can consist of a flexible bellows.

REFERENCES:
patent: 600545 (1898-03-01), Mauldin
patent: 1266974 (1918-05-01), Mitchell
patent: 1371983 (1921-03-01), Scott
patent: 1546973 (1925-07-01), Ellis
patent: 2245501 (1941-06-01), Richardson
patent: 2814992 (1957-12-01), Humason
patent: 2929327 (1960-03-01), Coberly
patent: 3045606 (1962-07-01), Schmidt
patent: 3164102 (1965-01-01), Schmidt
patent: 4287819 (1981-09-01), Emerit
patent: 4749337 (1988-06-01), Dickinson

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