Seal for water proofing a utility line conduit and a method of forming the seal
US4607469A · kind A · utility
68Cited by
10References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 16, 1984 |
| Grant date | Aug 26, 1986 |
| Priority date | — |
| Expiry date | Apr 16, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S264/80
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A method of and apparatus for sealing tubular conduits carrying one or more utility lines provided therein that do not totally displace the void is disclosed. The method and apparatus include spacing a plurality of dams along the axis of the conduit and defining a cell penetrated on opposite sides by the line or lines and thereafter pressuring the cell with a silicone or RTV rubber and exposing the cell to moisture sufficient to cause the resin to cure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.