发明名称 APPARAT FOER UTFOERANDE AV AOTGAERDER PAO EN UNDERVATTENSVENTIL.
摘要 An apparatus and a method for removing a component from, or placing a component on, an underwater valve comprises a base attachable to the flowline that carries the valve, and a two part assembly having a gantry that is aligned and mounted on the base and a sliding frame placed in sliding engagement with the gantry. The sliding frame guides the component towards or away from the underwater valve, after the gantry is properly aligned with respect to the valve by its connection to the base.
申请公布号 FI82132(B) 申请公布日期 1990.09.28
申请号 FI19850002226 申请日期 1985.06.03
申请人 SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. 发明人 CAMPBELL, COLIN THOMAS;CLEMENTS, RICHARD JOHN;ROBINSON, JOHN FOSTER;WARING, ALAN JAMES
分类号 E21B34/04;E21B41/10;F16K43/00 主分类号 E21B34/04
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