Pipe liner and method of installation
US5794662A · kind A · utility
21Cited by
7References
10Claims
0Family size
Inventors
Key dates
| Filing date | Aug 15, 1996 |
| Grant date | Aug 18, 1998 |
| Priority date | — |
| Expiry date | Aug 15, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2027/06
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of relining sewer lines, waterlines or gas lines is disclosed which uses a segmented liner of reduced size relative to the pipe being relined, with the liner being heat/pressure molded to the shape of the pipe being relined. The liner segments are joined by conventional joining techniques, however, the preferred joint is achieved by fusion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.