发明名称 TUBING GRAB ASSEMBLY
摘要 A tubing grab assembly to retain and lift tubing, pipes, tubulars or other cylindrical objects. The assembly includes a pair of opposed jaws and a housing having a cavity. A least one of the opposed jaws has a shaft therethrough to permit rotation of the jaw with respect to the housing between a closed position and an open position. A jaw spring forces the movable jaw toward the closed position. A retractable spring trigger mechanism locks the pair of opposed jaws in the closed position.
申请公布号 EP2627854(A4) 申请公布日期 2014.06.25
申请号 EP20110833487 申请日期 2011.10.14
申请人 THE CROSBY GROUP LLC 发明人 OHMAN III, ROGER ARTHUR;TAYLOR, LARRY MACK
分类号 E21B19/16;E21B17/10 主分类号 E21B19/16
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