发明名称 Impact tool
摘要 An impact tool has a spindle and a housing essentially surrounding the spindle. The spindle and the housing are split in such a way that they can move longitudinally relative to one another. First and second pairs of impact surfaces for the impact and recoil stroke are in each case provided between the spindle and the housing. Both groups of impact surfaces are enclosed in the impact tool. <IMAGE>
申请公布号 DE3421081(A1) 申请公布日期 1985.12.12
申请号 DE19843421081 申请日期 1984.06.06
申请人 BRALORNE RESOURCES LTD., CALGARY, ALBERTA, CA 发明人 RING, CURTIS P., ALBERTA, CA
分类号 E21B31/113;(IPC1-7):E21B31/107 主分类号 E21B31/113
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