发明名称 INTERNALLY RETAINED JAW ROLLER PIN
摘要 <p>A power tong jaw comprising a jaw body having upper and lower flange sections with flange apertures formed through the upper and lower flange sections. The power tong jaw will further have a jaw roller including a pin aperture and a roller pin positioned through the pin aperture in the jaw roller and through at least one of the upper or lower jaw flange apertures. The power tong jaw will further include a flexible retaining mechanism (i) positioned between outer surfaces of the upper and lower flange and (ii) engaging the roller pin.</p>
申请公布号 CA2715145(A1) 申请公布日期 2011.03.22
申请号 CA20102715145 申请日期 2010.09.22
申请人 MCCOY CORPORATION 发明人 GERWING, MURRAY;HARGREAVES, STEVEN;VAUGHAN, JEREMY;ISAACSON, KELVIN D.
分类号 E21B19/16 主分类号 E21B19/16
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