发明名称 REMOVABLE HAND GUARD FOR DRILLING RIG HAND TONGS
摘要 <p>A removable hand guard is provided for installation on drilling rig hand tongs and used to protect the hands of workers from being accidentally crushed when gripping the tong handle. The hand guard can include resilient body and tabs, which allow the guard to be positioned on the tong handle. The hand guard can be locked into place using locks and fasteners. The hand guard can include a slot, which can form a secondary handle to be used by a second worker to manoeuvre the tongs.</p>
申请公布号 CA2736227(C) 申请公布日期 2013.08.20
申请号 CA20112736227 申请日期 2011.04.04
申请人 HOLTBY, QUINN A. J. 发明人 HOLTBY, QUINN A. J.
分类号 E21B19/16;E21B41/00 主分类号 E21B19/16
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