发明名称 Process and apparatus for shutting off a buried gas line
摘要 A description is given of a process which serves to interrupt the gas throughflow in a buried pipeline. By extraction of soil by suction, a hole, which has a magnitude of approximately 15 cm and reaches to the top of the pipeline, is produced in the soil. A quick-setting mixture is injected through a hole, having a magnitude of 5 mm, which has been made in the pipeline. <IMAGE>
申请公布号 DE3717785(A1) 申请公布日期 1988.12.08
申请号 DE19873717785 申请日期 1987.05.26
申请人 HECK,JOERG 发明人 HECK,JOERG
分类号 A62C2/04;F16L55/10;F16L55/105;F17D3/00;(IPC1-7):F16L55/10 主分类号 A62C2/04
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