| 发明名称 |
Method and device for the abandonment of a branch main |
| 摘要 |
<p>A method 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.</p> |
| 申请公布号 |
EP0475699(B1) |
申请公布日期 |
1997.07.09 |
| 申请号 |
EP19910308207 |
申请日期 |
1991.09.09 |
| 申请人 |
BG PUBLIC LIMITED COMPANY |
发明人 |
ELGAR, ANTHONY DENNIS;SALES, BRIAN THOMAS;PARKES, ADRIAN SYDNEY |
| 分类号 |
E03B7/02;E03F3/04;F16L1/024;F16L55/10;F16L55/128;F16L55/16;(IPC1-7):F16L55/16;F16L55/12 |
主分类号 |
E03B7/02 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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