Reversible lining tube for repairing an existing pipeline
US5899636A · kind A · utility
4Cited by
6References
10Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jan 29, 1997 |
| Grant date | May 4, 1999 |
| Priority date | — |
| Expiry date | Jan 29, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2023/006
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A reversible lining tube for repairing an existing pipeline is reversible into the existing pipeline so that its initial inner surface becomes its outer surface which adheres to the internal surface of the pipeline. In detail, the reversible lining tube includes an elastomer layer and a flock layer, prior to reversal into the existing pipeline the elastomer layer is an outer layer and the flock layer is an inner layer, upon reversal into the existing pipeline the elastomer layer becomes an inner layer and the flock layer becomes an outer layer which adheres to the internal surface of the existing pipeline.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.