发明名称 |
Insert in a downhole drill bit |
摘要 |
A drill bit assembly has a bit body intermediate a shank and a working face. At least one wear resistant insert is press-fitted within a pocket formed in an outer surface of the bit. An urging element is disposed between the outer surface and a bore of the bit and the urging element is adapted to push the insert away from the bore.
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申请公布号 |
US7533738(B1) |
申请公布日期 |
2009.05.19 |
申请号 |
US20080169288 |
申请日期 |
2008.07.08 |
申请人 |
HALL DAVID R;WEBB CASEY;TAMANG ASHOK |
发明人 |
HALL DAVID R.;WEBB CASEY;TAMANG ASHOK |
分类号 |
E21B10/00;E21B10/36 |
主分类号 |
E21B10/00 |
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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