发明名称 |
Dichtungsanordnung zum umkehrbaren Absperren eines Rohrdurchlasses. |
摘要 |
<p>A pipe block for reversibly blocking the bore of a pipe comprises a body 2 having a shaft 3,4, a plurality, in this case three, spaced apart annular flanges 5 extending from the shaft to form a close fit with the internal wall 31 of the pipe 30 and means in the form of a funnel 8 attached to the shaft for guiding the threaded end 23 of a rod 20 into an internally threaded bore 6 of the shaft. <IMAGE></p> |
申请公布号 |
DE69109078(T2) |
申请公布日期 |
1995.09.21 |
申请号 |
DE1991609078T |
申请日期 |
1991.11.20 |
申请人 |
BRITISH GAS PLC, LONDON, GB |
发明人 |
ASHCROFT, IAN, PURLEY, SURREY, GB |
分类号 |
F16L55/11;(IPC1-7):F16L55/11 |
主分类号 |
F16L55/11 |
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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