发明名称 |
A SEAL FOR USE IN A METHOD FOR REPAIRING PIPES |
摘要 |
<p>A seal for use in replacing an existing fluid-carrying pipe with a replacement pipe comprises a tubular body of a flexible material, the body having a rear portion (52) for connection to the leading end of the replacement pipe and front portion (54) adapted in use to provide a barrier to the flow of fluid along the annular gap between the internal wall of the existing pipe and the external wall of the replacement pipe, the seal also having a membrane (62) serving to prevent the flow of fluid through the bore of the seal, the membrane being puncturable or removable to permit the flow of fluid through the seal. <IMAGE></p> |
申请公布号 |
AU1936192(A) |
申请公布日期 |
1992.08.27 |
申请号 |
AU19920019361 |
申请日期 |
1992.06.30 |
申请人 |
BRITISH GAS PLC |
发明人 |
JOHN TAYLOR;MICHAEL HICKS;RICHARD LAMB;ROBERT NEAL BENNETT;KEITH NIXON;IAN ASHCROFT;ADRIAN SYDNEY PARKES;JOHN PHILIP SMITH |
分类号 |
F16L55/16;F16L7/02;F16L55/134;F16L55/165 |
主分类号 |
F16L55/16 |
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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