发明名称 Pick with a reentrant
摘要 In one aspect of the invention, a pick adapted to degrade man-made or natural formations has a steel body comprising a shank adapted for attachment to a driving mechanism. The pick also has a leading edge opposite the shank which has an inside edge. A bore is disposed in the steel body proximate the inside edge. A cemented metal carbide core is press fit into the bore. A reentrant is formed at least partially in the bore.
申请公布号 US7594703(B2) 申请公布日期 2009.09.29
申请号 US20070748254 申请日期 2007.05.14
申请人 HALL DAVID R;CROCKETT RONALD;JEPSON JEFF 发明人 HALL DAVID R.;CROCKETT RONALD;JEPSON JEFF
分类号 E21C35/18 主分类号 E21C35/18
代理机构 代理人
主权项
地址
您可能感兴趣的专利