HIGH STRENGTH POLYMER-BASED CARTRIDGE CASING FOR BLANK AND SUBSONIC AMMUNITION
    2.
    发明公开
    HIGH STRENGTH POLYMER-BASED CARTRIDGE CASING FOR BLANK AND SUBSONIC AMMUNITION 有权
    高强度聚合物基于磁带的情况下实践和音响外壳

    公开(公告)号:EP2663831A1

    公开(公告)日:2013-11-20

    申请号:EP12702665.6

    申请日:2012-01-13

    IPC分类号: F42B5/313 F42B5/307

    CPC分类号: F42B5/313

    摘要: A high strength polymer-based cartridge casing includes an upper component of polymer having a first end with a mouth, at least a wall between the first end and a second end of the upper component opposite the first end, a sleeve extending longitudinally and radially about the wall, and at least one of an overlap portion and an underskirt portion extending from the wall near the second end. The lower component is molded from a polymer and includes at least one of a tapered portion and an outer tapered portion that engages at least one of the overlap portion and the underskirt portions, respectively, to join the upper and the lower components. Further, the sleeve reduces a volume of a propellant chamber formed by the wall. The reduced volume of the propellant chamber permits only enough propellant to propel a bullet engaged in the cartridge casing at subsonic speeds.

    HIGH STRENGTH POLYMER-BASED CARTRIDGE CASING AND MANUFACTURING METHOD
    3.
    发明公开
    HIGH STRENGTH POLYMER-BASED CARTRIDGE CASING AND MANUFACTURING METHOD 有权
    高强度聚合物基于匣壳体及其制造方法

    公开(公告)号:EP2663830A2

    公开(公告)日:2013-11-20

    申请号:EP12705515.0

    申请日:2012-01-13

    发明人: PADGETT, Charles

    IPC分类号: F42B5/307 F42B5/313

    摘要: A high strength polymer-based cartridge casing can include a first end having a mouth and a neck extending away from the mouth. Next, a shoulder extends below the neck and away from the first end. The cartridge can be have a frangible portion capable of being split upon discharge of a projectile. The shoulder can have unequal outside and inside shoulder angles. The casing can also include an insert having a rim at one end or a plurality of ribs extending longitudinally along a wall between the shoulder and the bottom of the cartridge and spaced radially from each other around a circumference of the wall. A projectile can be disposed in the mouth and a relief can be disposed on the neck near the mouth and projectile. The relief can form a gap between the neck and the projectile to receive an adhesive.