发明名称 Hand guard for drilling rig hand tongs
摘要 A hand guard for drilling rig hand tongs includes a resilient body having a first end and a second end. Clamps are provided for securing the first end of the body along a first edge of a jaw of the drilling rig hand tongs adjacent to a hand gripping bar. Clamps are provided for securing the second end of the body along a second edge of the jaw adjacent to the hand gripping bar. The body extends above and shields the hand gripping bar.
申请公布号 US2003013393(A1) 申请公布日期 2003.01.16
申请号 US20010016450 申请日期 2001.10.30
申请人 GEORGE WILLIAM;WARD ROSS 发明人 GEORGE WILLIAM;WARD ROSS
分类号 E21B19/16;(IPC1-7):B24B21/18 主分类号 E21B19/16
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