Underground drainage pipe

Details Underground drainage pipe Underground drainage pipe

1976-05-03

1978-01-03

Taylor, Dennis L.

61 10, F16L 2100, E02B 1100

Patent

active

040659259

ABSTRACT:
An underground drainage pipe having a trough, a roof and wings extending outwardly and downwardly from the junction between the trough lips and the roof. Specialized water intake holes are formed through the thickness of the trough lips beneath the wings. The drain pipe may be formed from extruded uniform cross section stock having alignment means for orienting bits used to drill the drainage holes.

REFERENCES:
patent: 460352 (1891-09-01), Reading
patent: 463871 (1891-11-01), Reading
patent: 1875395 (1932-06-01), Salisbury
patent: 2153790 (1939-04-01), Carswell et al.
patent: 2663997 (1953-12-01), Schmidt et al.
patent: 3333422 (1967-08-01), Neyland
patent: 3679242 (1972-07-01), Hess

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