发明名称 Apparatus and methods for spinning a pipe
摘要 Apparatus and methods for rotating or spinning a tubular. In some embodiments, the apparatus, referred to herein as a pipe spinner, includes a body, an arm pivotally coupled to the body, and an actuator coupled to the arm. The arm has a cam roller coupled thereto. The actuator is operable to pivot the arm relative to the body between an open position and a closed position. In the closed position, the cam roller engages the tubular. In the open position, the cam roller is disengaged from the tubular.
申请公布号 US8161846(B2) 申请公布日期 2012.04.24
申请号 US20090480192 申请日期 2009.06.08
申请人 DRZEWIECKI LOPEK;NATIONAL OILWELL VARCO, L.P. 发明人 DRZEWIECKI LOPEK
分类号 B25B13/50 主分类号 B25B13/50
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