发明名称 |
Removable plug |
摘要 |
A removable plug for the J-tube of an offshore platform or marine structure comprising a plug housing, plug body releasably retained with the plug housing, and shear type threaded fastening means retaining the plug body within the plug housing. The plug body may comprise a buoyant plug body to assist in the retrieval of the plug body after the removal thereof from the plug housing.
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申请公布号 |
US4286629(A) |
申请公布日期 |
1981.09.01 |
申请号 |
US19790101377 |
申请日期 |
1979.12.07 |
申请人 |
HALLIBURTON COMPANY |
发明人 |
STREICH, STEVEN G.;KNOX, LLOYD C. |
分类号 |
E02B17/00;E21B33/134;E21B43/01;E21B43/013;F16L55/11;(IPC1-7):F16L55/10 |
主分类号 |
E02B17/00 |
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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