| 发明名称 |
CARTRIDGE SHELL AND CARTRIDGE FOR BLAST HOLES AND METHOD OF USE |
| 摘要 |
A cartridge shell 10 comprises a main body 12 defining a volume 14 for holding energetic material. The main body 12 has a first end 16 for location adjacent a toe 48 of a hole 46 and a second end 18 directed to the collar 50 of hole 46. The second end 18 is tapered to reduce in transverse area away from the first end to form a point or wedge-like member 20. |
| 申请公布号 |
EP1281039(A1) |
申请公布日期 |
2003.02.05 |
| 申请号 |
EP20010907239 |
申请日期 |
2001.02.22 |
| 申请人 |
ROCKTEK LTD. |
发明人 |
TOTA, EDWARD;NIGEL ROGERS |
| 分类号 |
E21C37/14;F42B3/00;F42B3/04;F42B3/22;F42D1/08;F42D1/12;F42D3/04;(IPC1-7):F42B3/04 |
主分类号 |
E21C37/14 |
| 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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