发明名称 |
A lead-free primed rimfire cartridge and method of making the same. |
摘要 |
<p>A method of manufacturing an improved lead-free primed rimfire cartridge for ammunition or industrial powerloads providing a gas source for driving fasteners with power-fastening tools. A lead-free priming mixture is consolidated into an annular cavity of a rimfire casing and dried in the cavity. The primer is secured in the cavity by tamping at least a portion of propellant into the casing against and over the dried primer. The tamping pressure per casing may range from 1,300 psi to 8,800 psi (91.4-618.7Kgf/cm<2>). Any remaining portion of required propellant is added over the tamped compacted propellant layer. The ammunition and powerload casings are then sealed and finished in a conventional manner. A rimfire cartridge for both ammunition and industrial powerload applications manufactured as described above is also provided. <IMAGE></p> |
申请公布号 |
EP0529230(A2) |
申请公布日期 |
1993.03.03 |
申请号 |
EP19920110695 |
申请日期 |
1992.06.25 |
申请人 |
BLOUNT, INC. |
发明人 |
BJERKE, ROBERT K.;WARD, JAMES P.;KEES, KENNETH P.;STEVENS, WALTER H. |
分类号 |
F42B5/32;F42B33/02;(IPC1-7):F42B5/32;B25C1/16 |
主分类号 |
F42B5/32 |
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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