Wells – With below and above ground modification – With below ground screen
Patent
1977-08-12
1980-01-08
Granger, Theodore A.
Wells
With below and above ground modification
With below ground screen
90 15, 138DIG9, 166227, 210497R, E21B 4308
Patent
active
041824148
ABSTRACT:
A water screen displaying a variable filtration feature is provided wherein the water screen comprises a pipe length made of a compressible plastic material. The pipe length is provided with a plurality of inlet openings thereby permitting fluid located peripheral to the exterior surface of the pipe length to be transported through the inlet openings and at the same time filtering particulate matter and debris from the water.
REFERENCES:
patent: 1652650 (1927-12-01), Watson et al.
patent: 3177945 (1965-04-01), Lether
patent: 3545336 (1970-12-01), Savko
patent: 3547162 (1970-12-01), Schaerer
patent: 3864182 (1975-02-01), Shobert et al.
Brochure 12/31/76--L. B. Foster Company, "Perforated Water Well Casing", 2000 West Loop South, Houston, Texas.
Gilbert Marvin E.
Sanders Larry D.
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