发明名称 Wrenching tong
摘要 A torque measuring flange is provided for use with a tong arrangement. The torque measuring flange includes a top plate and a bottom plate and one or more cylinders disposed between one or more wedges, whereby rotating the top plate causes the wedges to compress a piston in the cylinder.
申请公布号 US8359951(B2) 申请公布日期 2013.01.29
申请号 US20100953656 申请日期 2010.11.24
申请人 WEATHERFORD/LAMB, INC.;PIETRAS BERND-GEORG;CARLSSON ANDREAS;SCHULZE-BECKINHAUSEN JORG ERICH 发明人 PIETRAS BERND-GEORG;CARLSSON ANDREAS;SCHULZE-BECKINHAUSEN JORG ERICH
分类号 E21B19/16 主分类号 E21B19/16
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