| 发明名称 |
TOOL FOR MAKING HOLES IN THE GROUND |
| 摘要 |
A tool for making holes in the ground comprises a ram tip and coupling means for connecting to a drive device, for instance a hydraulically or pneumatically operating tool driving machine or a vibrator operating for instance with eccentrically placed rotatably drivable masses for successively exciting the ram tip in the direction of the free end with vibration or percussion. |
| 申请公布号 |
AU9047991(A) |
申请公布日期 |
1992.07.08 |
| 申请号 |
AU19910090479 |
申请日期 |
1991.12.12 |
| 申请人 |
VAN DALFSEN ROTAR EQUIPMENT B.V. |
发明人 |
WILLIBALD KELLNER;RUDOLF HENDRIK VAN DALFSEN |
| 分类号 |
B25D17/08;E02D5/38;E02D5/46;E02D7/10;E02D7/18;E02D27/42;E02F3/96;E21B7/26;E21B11/02;E21B19/087 |
主分类号 |
B25D17/08 |
| 代理机构 |
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代理人 |
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| 地址 |
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