发明名称 |
Installing pipes |
摘要 |
A steel service pipe is connected to a main by a tee. A flexible assembly is inserted through the open end of the pipe and through the tee into the main. The flexible assembly includes a section of lower stiffness and a ball and socket connection of even lower stiffness at its leading end. The ball is connected to a weight. The weight falls down on entering the tee and creates a turning moment on the assembly. A plastic pipe is inserted through the open end of the pipe over the assembly and is inserted through the tee into the main. The pipe has a corrugated leading end which is more flexible than the remainder of the pipe and has a tapered nose terminating in a cylindrical mouth which enters an aperture in a liner in the main. |
申请公布号 |
HK1015158(A1) |
申请公布日期 |
2000.07.14 |
申请号 |
HK19980116237 |
申请日期 |
1998.12.28 |
申请人 |
BG PUBLIC LIMITED COMPANY |
发明人 |
DEREK STOVES;WILLIAM EDGAR ROBINSON |
分类号 |
B65B55/16;F16L55/16;F16L55/179;F16L55/18;F16L55/28;(IPC1-7):F16L |
主分类号 |
B65B55/16 |
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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