Systems and methods for launching water from a disrupter cannon

摘要

A water-resistant cartridge includes a pyrotechnic that when ignited launches water from a disrupter cannon to disable and/or destroy an explosive device. The cartridge includes a seal that seals between an outer surface of the cartridge and an inner surface of the barrel to limit water that escapes from the barrel rearward of the seal and cartridge. Prior to launching the water, the water in the barrel surrounds the cartridge forward of the seal. As the pyrotechnic burns and provides an expansive force on the sides of the cartridge, the water between the sides of the cartridge and the inner surface of the barrel resists the expansive force to help retain the shape of the cartridge, so that it may be more easily removed from the barrel after firing. The force provided by the pyrotechnic blows a cover of the cartridge off to provide the force directly to the water to launch the water.

主权项

1. A disrupter cannon for launching water in a forward direction toward an explosive device to disable or destroy the explosive device, the disrupter cannon comprising:
a barrel having a breech end portion and a muzzle end portion; a cartridge comprising a casing, a primer, a pyrotechnic, and a seal, the casing having an interior cavity, the pyrotechnic positioned in the cavity, the casing formed of a water-resistant material, the seal positioned forward of a rear end portion of the casing; wherein while the cartridge is positioned in the barrel with the water:
the seal forms a seal between an outer surface of the casing and an inner surface of the barrel that restricts the flow of water rearward of the seal;the portion of the casing forward of the seal is surrounded by the water;the casing resists passage of the water into the cavity so that the pyrotechnic in the cavity remains operable;igniting the primer ignites the pyrotechnic to launch the water from the barrel; andthe water between the outer surface of the casing and the inner surface of the barrel resists the expansion of the casing caused by ignition of the pyrotechnic so that the casing substantially retains the shape.