Method of making reinforced concrete pipe

Details Method of making reinforced concrete pipe Method of making reinforced concrete pipe

1975-11-20

1978-03-21

Hoag, Willard E.

Metal working

Method of mechanical manufacture

Assembling or joining

140 3R, 140 3C, 245 2, 140107, 245 8, 264259, 264267, 264274, 264279, 264299, 264309, 264311, 264312, 264333, B28B 2164, B28B 2130

Patent

active

040795004

ABSTRACT:
Method of reinforcing concrete pipe in a rotary molding method using a wire reinforcing cage having a helical strand disposed about its exterior to resist torsional forces on the cage during molding, the cage being formed from a flat sheet.

REFERENCES:
patent: 782877 (1905-02-01), Roney
patent: 1058274 (1913-04-01), Tirapani
patent: 1326594 (1919-12-01), Hume
patent: 1895740 (1933-01-01), Ukropina
patent: 3162709 (1964-12-01), Davidson

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