Plastic corrugated drainage pipe

Details Plastic corrugated drainage pipe Plastic corrugated drainage pipe

1976-10-08

1979-02-20

Stein, Mervin

Hydraulic and earth engineering

Drainage or irrigation

Porous or apertured pipe, flume, or tileway

285401, 285DIG22, E02B 1300, F16L 3724

Patent

active

041404220

ABSTRACT:
A corrugated plastic drainage pipe in which drainage holes are formed through raised reinforcing formations on the corrugated pipe periphery and in which each of the reinforcing formations is integrally joined to adjacently disposed ridges or ribs of the corrugations and protrude from the valley therebetween to bridge the valley. Each reinforcing formation terminates in an end face which peripherally surrounds the drainage hole through the reinforcing formation and which is adapted to seat against surrounding soil or other material in a buried installation. Support feet formations are integrally formed with the corrugated pipe and are adapted to seat on a pipe-supporting surface to support the pipe.

REFERENCES:
patent: 3747352 (1973-07-01), Maroschak
patent: 3855799 (1974-12-01), Martin et al.
patent: 3929359 (1975-12-01), Schmunk et al.
patent: 3950014 (1976-04-01), Doubleday

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