| 发明名称 |
High-impact resistant tool |
| 摘要 |
A high impact resistant tool comprises a steel shank. The steel shank has a hollow portion, and first and second ends. The shank is adapted for insertion into a holder and connection to a driving mechanism. A carbide cap is joined at a brazed joint to the first end of the shank.
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| 申请公布号 |
US8454096(B2) |
申请公布日期 |
2013.06.04 |
| 申请号 |
US20080146665 |
申请日期 |
2008.06.26 |
| 申请人 |
HALL DAVID R.;CROCKETT RONALD B.;JEPSON JEFF;SCHLUMBERGER TECHNOLOGY CORPORATION |
发明人 |
HALL DAVID R.;CROCKETT RONALD B.;JEPSON JEFF |
| 分类号 |
E21C35/19 |
主分类号 |
E21C35/19 |
| 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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