Ribbed pipe

Details Ribbed pipe Ribbed pipe

1989-05-16

1990-10-23

Bryant, III, James E.

Pipes and tubular conduits

Flexible

Corrugated

138121, 138129, 138137, 138173, 138154, 138140, F16L 1108

Patent

active

049644408

ABSTRACT:
Disclosed herein is a hydraulically efficient metal pipe particularly adapted for use in storm drain and sanitary sewer applications which is adapted for use with a self-supporting interior inert protective lining. The pipe has a channeled wall defining a plurality of outwardly projecting structural ribs and a hydraulically smooth interior surface. The ribs are preferably of a helical configuration and the channels which are formed interiorly thereof are generally either square or rectangular in cross-section and are open along the interior surface of the pipe. The walls defining the ribs can be tapered inwardly to form triangular-shaped channels so as to define an anchor throughout the length of the pipe for securing thereto a smooth interior lining of corrosion-resistant protective material.

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patent: 4630650 (1986-12-01), Davis

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