F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
F16L 21/00 (2006.01) F16L 9/02 (2006.01) F16L 21/06 (2006.01) F16L 23/12 (2006.01) F16L 58/18 (2006.01)
Patent
CA 2105146
A roll grooved pipe is provided on its inner surface with a hydrofoil surface providing a transition between the inner surface of the pipe and the radially innermost portion of a radially inwardly extending step formed in the inner wall of the pipe by the cold rolling of the groove in the pipe.
Dole Douglas R.
Rung Robert
Kirby Eades Gale Baker
Victaulic Company Of America
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