| 发明名称 |
Cutting bit assembly for impinging an earth strata |
| 摘要 |
A cutting bit assembly which includes a driven member and a cutting bit detachably connected to the driven member by a retainer. The retainer includes a magnetic pin that removably engages at least one of the cutting bit and the driven member.
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| 申请公布号 |
US5833017(A) |
申请公布日期 |
1998.11.10 |
| 申请号 |
US19960720904 |
申请日期 |
1996.10.10 |
| 申请人 |
KENNAMETAL INC. |
发明人 |
WOODS, GERALD L.;BOLLMAN, PERCY D.;RITCHEY, CARY D. |
| 分类号 |
E21B10/36;E21B10/60;E21C35/18;E21C35/19;F16B21/12;(IPC1-7):E21B10/36;E21B10/62 |
主分类号 |
E21B10/36 |
| 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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