Patent ID: 7823509
Filing Date: 2010-11-02
Classification: F42B

Abstract:
1. A flechette cartridge comprising: (a) a cartridge case having: (b) a primer disposed within the primer cavity; (c) a propellant charge disposed within the high pressure chamber; (d) a plurality of sub caliber payload cups slidably disposed within the smooth-bored cartridge barrel, adjacent the low pressure chamber, each sub caliber payload cup having: (e) a separator disk disposed between each subcaliber payload cups; and (f) a tether in communication with the cartridge case at a first end, and with the payload cups adjacent an end opposite the first end, wherein, when the flechette cartridge is fired, the subcaliber payload cups are propelled from the smooth bored cartridge barrel and, at a predetermined distance from the smooth bored cartridge barrel, the tether acts upon the subcaliber payload cups to strip the payload cups from the flechettes, and allow only the flechettes to continue direct forward travel.