Method and system for repairing the flow-line of corrugated metal pipes
US8418336B2 · kind B2 · utility
6Cited by
16References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 2, 2010 |
| Grant date | Apr 16, 2013 |
| Priority date | — |
| Expiry date | Aug 1, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/5367
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A system and method for repairing the damaged portion of a flow-line of a Corrugated Metal Pipe is disclosed. A containment mold is created on the interior surface of the CMP using a series of overlapping rigid sheets that are attached to the CMP along the damaged flow-line. This mold is provided with injection ports through which a hydro-insensitive expanding polymer may be injected. External pressure is applied to the rigid sheet during injection and hardening of the polymer. The result is a single monolithic structure forming a patch over the damaged CMP flow-line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.