发明名称 Containment apparatus for manual pipe tongs
摘要 The present invention relates to a method and apparatus for containing and restraining the fragmentation of the jaw portion of a set of mechanical pipe tongs, under stress load conditions. The apparatus comprising a flexible belts or the like surrounding the jaws of the tongs like a girdle and attached to an energy absorber located at either side of the tongs' body.
申请公布号 US5333925(A) 申请公布日期 1994.08.02
申请号 US19930011513 申请日期 1993.02.01
申请人 FOLEY, JR., LARRY 发明人 FOLEY, JR., LARRY
分类号 E21B19/16;(IPC1-7):E21B19/16 主分类号 E21B19/16
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