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 US2002014176(A1) 申请公布日期 2002.02.07
申请号 US20010794202 申请日期 2001.02.26
申请人 TOTA EDWARD W.;ROGERS NIGEL 发明人 TOTA EDWARD W.;ROGERS NIGEL
分类号 E21C37/14;F42B3/00;F42B3/04;F42B3/22;F42D1/08;F42D1/12;F42D3/04;(IPC1-7):F42B3/00 主分类号 E21C37/14
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