Hydrophilic end seal
US8240341B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 11, 2011 |
| Grant date | Aug 14, 2012 |
| Priority date | — |
| Expiry date | Mar 11, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/53
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
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. The tubular sleeve is held in place by a mechanical fastener and a pipe liner is installed or otherwise placed through the tubular sleeve and against the wall of the pipe. 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 mechanical fastener, a pipe liner, and a manhole liner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.