Patent ID: 7823497
Filing Date: 2010-11-02
Classification: F41A

Abstract:
1. A countermass weapon, comprising: a launcher tube open or openable in both ends, the launcher tube housing a launch able unit, a countermass comprising a first container enclosing a liquid, the first container comprising a non-rigid material and a peripheral flange, a pressure chamber, a propellant charge that upon firing and combustion of the charge in cooperation with the pressure chamber and the countermass accelerates the launch able unit forwards in the tube at the same time as the countermass accelerates backwards in the tube, and a second container that encloses and seals the first container, the second container comprising a front casing and a rear casing operatively coupled together by a joint, the second container comprising a material having damping characteristics, an exterior of the front casing comprising grooves configured to facilitate a splitting apart of the second container and an exterior of the rear casing comprising grooves configured to facilitate a splitting apart of the second container, wherein the peripheral flange is clamped between the front casing and the rear casing.