发明名称 |
Diamond impregnated bit with aggressive face profile |
摘要 |
<p>A drill bit includes a crown defining a central axis. The crown includes at least one segment. The segment includes a planar portion and a plurality of surface features continuous with and extending away from the planar portion. The surface features are discontinuous within the segment with respect to a first arced path defined at a first radial distance from the central axis.</p> |
申请公布号 |
AU2010282270(B2) |
申请公布日期 |
2015.02.19 |
申请号 |
AU20100282270 |
申请日期 |
2010.08.16 |
申请人 |
LONGYEAR TM, INC. |
发明人 |
LAMBERT, CHRISTIAN M.;RUPP, MICHAEL D. |
分类号 |
E21B10/48;E21B10/02 |
主分类号 |
E21B10/48 |
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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