Liner for pipeline repair and method for repairing pipelines
US5035539A · kind A · utility
26Cited by
6References
19Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Aug 13, 1990 |
| Grant date | Jul 30, 1991 |
| Priority date | — |
| Expiry date | Aug 13, 2010 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L55/163
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A liner for pipeline repair is provided that includes an elastically deformable sleeve having impermeability, a base having a sheet-like base portion disposed inside the sleeve, wound into a cylindrical form, and expandable radially and fixing means disposed in the base for maintaining the base portion in a subtantially cylindrical form when the base portion is expanded radially within the sleeve. The liner is used for preventing the outflow of water from a pipeline such as a sewer pipe and/or the inflow of water into the pipeline.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.