Tapered manhole sealing band and method for use
US7150580B1 · kind B1 · utility
4Cited by
28References
17Claims
0Family size
Inventor
Key dates
| Filing date | Aug 24, 2005 |
| Grant date | Dec 19, 2006 |
| Priority date | — |
| Expiry date | Aug 24, 2025 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02D29/149
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The invention relates to a device and method for sealing a manhole structure. An elastomeric band with at least two different peripheries is sealingly engaged to at least two corresponding peripheries of the manhole structure. Adhesives and supplemental retaining bands may also be used to secure the elastomeric band to the manhole structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.