发明名称 Alignment assembly, drilling systems, and methods
摘要 An alignment assembly includes a shaft, a first gripper coupled to the shaft, and a second gripper coupled to the shaft. The first gripper includes a fixed gripper body and a first rotating gripper body rotatingly coupled to the fixed gripper body. The second gripper may include a second rotating gripper body and a third rotating gripper body. An axis pivot rotatingly couples the second rotating gripper body and the third rotating gripper body.
申请公布号 AU2011238800(A1) 申请公布日期 2012.09.20
申请号 AU20110238800 申请日期 2011.03.18
申请人 LONGYEAR TM, INC. 发明人 WREDE, STEFAN;UPMEIER, THORSTEN;KRUSE, CHRISTOF
分类号 E21B19/06;E21B15/02;E21B19/08;E21B19/22 主分类号 E21B19/06
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