F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
113/51, 189/56
F16L 11/08 (2006.01) F16L 57/06 (2006.01) F16L 58/06 (2006.01) F16L 58/10 (2006.01)
Patent
CA 1322182
ABSTRACT OF THE DISCLOSURE 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 channelled 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.
599788
Andre James R.
Daniels Lawrence H.
Gowling Lafleur Henderson Llp
W.e. Hall Co.
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