Pipeline rehabilitation systems
US7131791B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 13, 2003 |
| Grant date | Nov 7, 2006 |
| Priority date | — |
| Expiry date | Nov 13, 2023 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE03F2003/065
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Devices and methods for streamlining the completion of work functions within a lateral pipe connected to a main pipe. A variety of different lateral devices may be used to aid in the process of relining the main or lateral pipe. A lateral location device is inserted into the lateral pipe prior to relining of the main pipe and is subsequently used to aid in the conventional cutting of the main-lateral interface. A lateral cutting device actually performs the main-lateral cutting process from within the lateral or from within the main. A lateral inspection device crawls up the lateral for inspection via camera. A lateral relining device aids in the placement of a liner used to reline the lateral pipe. Each of these interchangeable work functions may be optional performed by one or more lateral devices, often carried and inserted by a delivery device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.