发明名称 AN APPARATUS AND A METHOD FOR FACILITATING THE CONNECTION OFPIPES
摘要 An apparatus for facilitating the connection of pipes which apparatus comprises a rotary (1) and jaws (20, 21, 22), characterised in that all of said jaws (20, 21, 22) are active and are actuable by pressurise d fluid.
申请公布号 CA2359215(C) 申请公布日期 2009.06.16
申请号 CA19992359215 申请日期 1999.12.23
申请人 WEATHERFORD/LAMB, INC. 发明人 SCHULZE-BECKINGHAUSEN, JOERG ERIC;PIETRAS, BERND-GEORG
分类号 E21B19/16 主分类号 E21B19/16
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