Lining of lateral pipelines with a liner having a sealing collar
US5692543A · kind A · utility
37Cited by
1References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 7, 1995 |
| Grant date | Dec 2, 1997 |
| Priority date | — |
| Expiry date | Aug 7, 2015 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L55/179
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A method and apparatus is disclosed for lining a lateral pipe branching off of a main pipe with a flexible resin absorbent tubular lining portion having an integral sealing end which includes a flexible resin absorbent end collar portion and a preformed sealing collar having a body portion with an aperture and a rim. The body portion being located against a portion of the main pipe with the resin absorbent collar portion therebetween and the rim being located in a portion of the lateral pipe wherein the preformed sealing collar seals the region where the lateral pipe meets the main pipe.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.