Plastic pipe for sewer pipe reconstruction

Details Plastic pipe for sewer pipe reconstruction Plastic pipe for sewer pipe reconstruction

1990-06-25

1991-12-10

Arola, Dave W.

Pipe joints or couplings

Pipe to discreet nipple or sleeve to plate

Ball and socket

285423, 285903, 285921, F16L 2100

Patent

active

050711733

ABSTRACT:
A plastic pipe for sewer pipe reconstruction has at least one spigot, the outer diameter of which is smaller than the outer diameter of the pipe. It has furthermore a socket end the outer diameter of which is substantially equal to the outer diameter of the pipe. Its inner diameter is substantially equal to the outer diameter of the spigot. In order to construct such a pipe that, while having high crushing strength, it has low weight and insensitivity to damage in the outer area, and can be used for short-pipe relining, the pipe and the at least one spigot have annular protrusions. Furthermore, the outer diameter of the protrusions of the spigot corresponds substantially to the inner diameter of the socket end. The pipe is very rigid.

REFERENCES:
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patent: 4915425 (1990-04-01), Hegler et al.
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