Method for repairing pipes
US7174920B2 · kind B2 · utility
4Cited by
12References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 2, 2002 |
| Grant date | Feb 13, 2007 |
| Priority date | — |
| Expiry date | Jan 31, 2024 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L55/18
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The invention concerns a method for repairing a pressurized fluid supply pipeline (1) comprising a series of buried prestressed concrete pipe segments (2, 3, 4) which consists in: providing excavations in the trench, beneath suitably set portions (6, 7) of the pipe (1), cleaning up said pipe portions, installing and tensioning the prestressed reinforcements (12) around said portions of the pipe and filling up the excavations with earth material by compacting said material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.