发明名称 |
FREMGANGSMAATE FOR TETT SAMMENFOEYNING AV EN HYLSE OG ET UNDERVANNS ROER PAA STOR DYBDE |
摘要 |
Method for tightly jointing a sleeve to a submarine pipe laid on a very deep sea-bottom, characterized by the preliminary stages of providing a series of grooves on the inside surface of the sleeve, and of filling each one of said grooves with two half-rings made of a material collapsible under high pressures up to a 70% variation of its volume. A type of such a material is moreover described. |
申请公布号 |
NO170821(C) |
申请公布日期 |
1992.12.09 |
申请号 |
NO19850000971 |
申请日期 |
1985.03.12 |
申请人 |
NUOVO PIGNONE SPA;SNAM SPA |
发明人 |
AGGRADI, GIAN PIETRO FERRARI;BONFIGLIOLI, GIAMPAOLO |
分类号 |
B21D39/04;F16L13/16 |
主分类号 |
B21D39/04 |
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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