Power tong
    1.
    发明授权
    Power tong 有权
    动力钳

    公开(公告)号:US06684737B1

    公开(公告)日:2004-02-03

    申请号:US09890314

    申请日:2002-01-04

    IPC分类号: B25B1350

    CPC分类号: E21B19/164

    摘要: This invention relates to a rotary and a method for facilitating the connection of pipes, and more particularly, but not exclusively, to a rotary for a powered drill pipe tong for facilitating the connection of sections or strands of drill pipe to a string of drill pipe.

    摘要翻译: 本发明涉及一种用于促进管道连接的旋转和方法,更具体地但不排他地涉及一种用于动力钻管钳的旋转件,用于有助于将钻杆的部分或多股连接到钻杆系列 。