Installation of lateral linings with sealing collar from the main pipeline out
US5624629A · kind A · utility
32Cited by
13References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 27, 1995 |
| Grant date | Apr 29, 1997 |
| Priority date | — |
| Expiry date | Feb 27, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1788
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A liner for a lateral pipe which leads into a main pipe having at one end a collar for installation at the location where the lateral liner meets the main, the collar extending along the interior of the main seating against the opening of the lateral. The liner mounted in a launching device is installed by everting the liner through an opening in the collar by means of fluid under pressure supplied through a pressure pipe in the launching device, the launcher held in position by an inflatable bladder which is inflated by said fluid, and against the collar for sealing the lateral/main pipe junction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.