Hydrophilic end seal
US8240340B2 · kind B2 · utility
6Cited by
13References
37Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 7, 2010 |
| Grant date | Aug 14, 2012 |
| Priority date | — |
| Expiry date | Dec 7, 2030 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE03F2003/065
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A kit, apparatus, and method for sealing a junction between a manhole and a pipe within a sewer system are provided. In a first embodiment, the end of a pipe adjacent a manhole is sealed by the use of a pipe liner and a tubular sleeve made of a hydrophilic material. In a second embodiment, a majority of the area surrounding a junction of a pipe and a manhole is sealed by the use of a tubular sleeve made of a hydrophilic material including a flange portion, a pipe liner, and a manhole liner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.