| 发明名称 |
A CUTTING BIT ASSEMBLY FOR IMPINGING AN EARTH STRATA |
| 摘要 |
A cutting bit assembly (30) which includes a driven member (66) and a cutting bit (22) detachably connected to the driven member by a retainer (70, 72). The retainer includes a magnetic pin (70, 72) that removably engages at least one of the cutting bit (22) and the driven member (66).
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| 申请公布号 |
WO9815714(A1) |
申请公布日期 |
1998.04.16 |
| 申请号 |
WO1997US14482 |
申请日期 |
1997.08.18 |
| 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):E21C35/19 |
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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