| 发明名称 |
METHOD OF CUTTING AND CUTTING ROTATIVE BIT |
| 摘要 |
A rotating cutting tool has a cutting annular element which is mounted and displaced so that the cutting annular element has an attack angle exceeding 90 DEG . The cutting element has a convex cutting front face and a skew angle between 0 DEG and 90 DEG . |
| 申请公布号 |
EP0811112(B1) |
申请公布日期 |
2001.05.23 |
| 申请号 |
EP19960908560 |
申请日期 |
1996.02.26 |
| 申请人 |
CHAMPION EQUIPMENT CO. |
发明人 |
KOSOBRODOV, YURIY;JUE, VINCENT |
| 分类号 |
E21C35/18;E21C35/183 |
主分类号 |
E21C35/18 |
| 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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