发明名称 Drill pipe handling tool
摘要 A tool for handling an elongated, tubular drill pipe has an elongated body between a first and second end for engaging and holding a first and second end of the drill pipe. The engagement ends of the tool are spaced apart a distance slightly less than the length of the drill pipe. The engagement ends are capable of being elastically spread apart when the drill pipe is being engaged, and thereafter the elastic spreading is released to cause the tool to remain in engagement with the drill pipe during the handling thereof.
申请公布号 US5277463(A) 申请公布日期 1994.01.11
申请号 US19930001887 申请日期 1993.01.08
申请人 INGERSOLL-RAND COMPANY 发明人 SINGH, MOHINDER;SZEP, EDWARD A.
分类号 B66C1/62;E21B19/06;(IPC1-7):B66C1/22 主分类号 B66C1/62
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