Plastic well pipe

Details Plastic well pipe Plastic well pipe

1978-11-14

1980-08-05

Footland, Lenard A.

Pipes and tubular conduits

Plural duct

With spacer and encircling element

138113, 138114, F16L 918

Patent

active

042157277

ABSTRACT:
A plastic well pipe comprising an outer wall, an inner wall, and channels formed by longitudinally extending partitions being integral with the walls, the outer wall being provided with bores opening into the channels, while at certain points the inner wall has been removed for recovering liquid from the channels, which liquid flows into the channels through the bores.

REFERENCES:
patent: 1305915 (1919-06-01), Mack
patent: 1594788 (1926-08-01), McLaughlin et al.
patent: 2681111 (1954-06-01), Thompson
patent: 3532132 (1970-10-01), Rubenstein
patent: 4033381 (1977-07-01), Newman et al.

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