发明名称 |
Pipe-joining method and apparatus for producing underwater pipelines, and underwater-pipeline-laying vessel comprising such an apparatus |
摘要 |
A method of joining pipes (3) to produce underwater pipelines (2), wherein the facing free ends (15) of two adjacent pipes (3), aligned along an axis (A), are welded to define a cutback (18); a protective sheet (22) of plastic material is extruded close to the cutback (18); and the protective sheet (22) is wound about the cutback (18). |
申请公布号 |
US8061582(B2) |
申请公布日期 |
2011.11.22 |
申请号 |
US20070448194 |
申请日期 |
2007.12.13 |
申请人 |
CITTADINI BELLINI SERAFINO;SAIPEM S.P.A. |
发明人 |
CITTADINI BELLINI SERAFINO |
分类号 |
B23K31/02;F16L1/12 |
主分类号 |
B23K31/02 |
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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