发明名称 |
Cartridge shell and cartridge for fracturing hard materials 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 |
ZA200107135(B) |
申请公布日期 |
2002.11.01 |
申请号 |
ZA20010007135 |
申请日期 |
2000.03.20 |
申请人 |
ROCKTEK LIMITED |
发明人 |
EDWARD W TOTA;ROGERS, NIGEL, CHRISTOPHER |
分类号 |
E21C37/14;F42B3/00;F42B3/04;F42B3/22;F42D1/08;F42D1/12;F42D3/04 |
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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