Apparatus for the abandonment of a branch main
US5379803A · kind A · utility
6Cited by
12References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 4, 1993 |
| Grant date | Jan 10, 1995 |
| Priority date | — |
| Expiry date | Feb 4, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/0441
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for abandoning a branch main 1 joined to a fluid-carrying spine main 2 comprises gaining access to the bore of the branch main 1 at an access point and then permanently blocking the bore of the branch main 1 at a blockage point closer to the junction then to the access point.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.