发明名称 Gripping assembly for impact hammer
摘要 A gripping assembly mounted on an impact hammer having a longitudinally extending impact axis, the gripping assembly including a pair of opposed elongate gripping arms, having gripping end portions which may be extended and swung toward each other to grip material in the region of the working end of the impact hammer. When retracted, the gripping arms rest to opposite sides of the impact hammer to permit free operation of the impact hammer.
申请公布号 US2004168814(A1) 申请公布日期 2004.09.02
申请号 US20040474933 申请日期 2004.04.15
申请人 STEWART BILLY M.;EISENBACHER DEAN F.;KOPP MATTHEW L.;ZYSK TOMAS J.;SANDER CATHERINE H. 发明人 STEWART BILLY M.;EISENBACHER DEAN F.;KOPP MATTHEW L.;ZYSK TOMAS J.;SANDER CATHERINE H.
分类号 B25D17/00;E02F3/96;(IPC1-7):E21B7/02 主分类号 B25D17/00
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