发明名称 |
CORE DRILL BIT |
摘要 |
<p>A drill bit is disclosed. The drill bit has an axis, and a barrel, and a cutting member fixed to the barrel. The barrel is arranged to engage a drill shaft for driving the drill bit around the axis. The barrel and the cutting member are adjacently located on the axis. The drill bit has an aperture centered on the axis, the aperture passing completely through both the cutting member and barrel.</p> |
申请公布号 |
EP2318640(A1) |
申请公布日期 |
2011.05.11 |
申请号 |
EP20090806914 |
申请日期 |
2009.06.15 |
申请人 |
SANDVIK INTELLECTUAL PROPERTY AB |
发明人 |
BELL, ANDY;PURSER, RAYMOND |
分类号 |
E21B10/62;B23B51/04;E21B10/02 |
主分类号 |
E21B10/62 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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