Lining of pipelines and passageways
US4980116A · kind A · utility
24Cited by
10References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 10, 1989 |
| Grant date | Dec 25, 1990 |
| Priority date | — |
| Expiry date | Feb 10, 2009 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L55/1604
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
In order to line a pipeline or passageway active in conveying effluent without interrupting the flow of effluent therethrough, a first bypass conduit is passed through the section to be lined before the lining is inserted and the effluent is pumped therethrough, a second bypass conduit is passed through the lining after it has been inserted but before is has been fixed in position, the effluent is then pumped through that second conduit, the lining is fixed in position, normal effluent flow resumes, and the second conduit can be removed for future use.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.