发明名称 Arrowhead extractor
摘要 An arrowhead extractor apparatus for removal of an arrowhead embedded in a workpiece. The arrowhead extractor includes a threaded shaft with a threaded bore at a first end and a handle at a second end. A removable insert fits into the threaded bore. The removable insert includes a threaded bore for engaging the threaded shaft of an arrowhead. A sleeve is slideable along the shaft. The sleeve has a surface for engaging the workpiece and has a central opening through which the arrowhead can pass. An attachment is provided for adjusting the surface of the sleeve to conform to an uneven workpiece surface. A nut threadedly engages the threaded portion of the shaft. The nut engages the sleeve and moves the sleeve relative to the shaft in response to rotation of the nut.
申请公布号 US4920625(A) 申请公布日期 1990.05.01
申请号 US19880280128 申请日期 1988.12.05
申请人 SMITH, MARK A. 发明人 SMITH, MARK A.
分类号 B25B27/02;F41B5/14 主分类号 B25B27/02
代理机构 代理人
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