Method and apparatus for cleaning the screen inlet portion of a

Details Method and apparatus for cleaning the screen inlet portion of a Method and apparatus for cleaning the screen inlet portion of a

1985-07-02

1986-09-02

Leppink, James A.

Wells

Processes

Cleaning or unloading well

91275, 166 53, 166 72, 166 751, 166171, 166379, 166383, E21B 3708

Patent

active

046090452

ABSTRACT:
A fluid operated cylinder is suspended from a crane by a cable and has a piston rod connected by a cable to a cleaning unit for supporting the cleaning unit within the screened inlet portion of a water well casing extending into the ground. Air is supplied to the cylinder through a solenoid valve which is controlled in response to movement of the piston to produce reciprocation of the piston and corresponding movement of the cleaning unit within the well casing.

REFERENCES:
patent: 2462571 (1949-02-01), Thompson et al.
patent: 2721614 (1955-10-01), Simmons
patent: 3208728 (1965-09-01), Parks
patent: 3547194 (1970-12-01), Morine
patent: 3583489 (1971-06-01), Hutchison et al.
patent: 3894476 (1975-07-01), Cobb
patent: 4176586 (1979-12-01), Stoll et al.
patent: 4480685 (1984-11-01), Gilbertson
patent: 4516637 (1985-05-01), Winckler
Ferrox, "Mould Cleaning"; Nov. 24, 1975.

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