Pressure-resistant helical corrugated pipe

Details Pressure-resistant helical corrugated pipe Pressure-resistant helical corrugated pipe

1991-05-08

1993-02-09

Bryant, III, James E.

Pipes and tubular conduits

Flexible

Corrugated

138133, 138154, 138174, F16L 1111

Patent

active

051846497

ABSTRACT:
A pressure-resistant helically corrugated pipe includes an integral, pipe wall corrugation helically wound to form a pipe, the corrugation having a trough portion disposed close to the axis of the pipe and outwardly projecting flange portions on opposite sides of the trough portion, adjacent flange portions being connected together to form the pipe having a helical outwardly projecting portion adjacent the trough portion. The pipe further includes a metal belt plate reinforcing member disposed within the trough portion of the helically disposed corrugation, the metal belt plate being generally U-shaped in cross-section so as to define a base, legs and free ends and opening toward the exterior of the pipe.

REFERENCES:
patent: 1474949 (1923-11-01), Sundh
patent: 4759389 (1988-07-01), Suck
patent: 4796672 (1989-01-01), Kanao
patent: 4838317 (1989-06-01), Andre et al.
patent: 4862924 (1989-09-01), Kanao
patent: 5007462 (1991-04-01), Kanao

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