Method of reinforcing a cylindrical pipeline and...

Details Method of reinforcing a cylindrical pipeline and... Method of reinforcing a cylindrical pipeline and...

2004-03-19

2008-03-25

Brinson, Patrick F. (Department: 3754)

Pipes and tubular conduits

Reinforced

C138S174000, C138S175000, C138S099000

Reexamination Certificate

active

07347227

ABSTRACT:
In order to reinforce a cylindrical pipeline, in particular an underground water supply pipeline, prestressing reinforcements are placed and tensioned around it. In a zone where the pipeline has a radial projection, for example providing a manhole for access to the inside of the pipeline, the prestressing reinforcements are deflected to bypass the radial projection so that the reinforcements, located in the same layer on a side of the pipeline opposite the side having the projection, are distributed in a plurality of layers on this side having the protuberance.

REFERENCES:
patent: 3275040 (1966-09-01), Szulc et al.
patent: 3315989 (1967-04-01), Ohnstad
patent: 3338601 (1967-08-01), Osweiler
patent: 3355529 (1967-11-01), Easterday
patent: 4504086 (1985-03-01), Carrow
patent: 7174920 (2007-02-01), Stubler et al.
patent: WO 03/014614 (2003-02-01), None

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