Patent ID: 8915004

Claim:
A disrupter cannon for launching a provided projectile in a forward direction toward an explosive device to disable or destroy the explosive device, the disrupter cannon comprising: a barrel; a breech cap coupled to the barrel; and a firing assembly comprising a housing, a retainer, a magnet, a cover, and a firing pin, the housing is coupled to the breech cap; wherein: the retainer, the magnet, the cover, and the firing pin are positioned in the housing, the firing pin is positioned between the cover and the breech cap; the retainer has a bore therethrough; the magnet has a bore therethrough, the magnet is positioned forward of the retainer such that the bore of the retainer and the bore of the magnet align; the cover has a bore therethrough, the cover is positioned forward of the magnet such that the bore of the retainer and the bore of the magnet align with the bore of the cover; the cover is positioned between the magnet and the firing pin such that the firing pin does not contact the magnet; in a pre-firing position, the firing pin is proximate to the bore of the cover; a first force provided by an expanding gas via the bore of the retainer, the bore of the magnet, and the bore of the cover moves the firing pin away from a pre-firing position to a firing position to launch the projectile; as a magnitude of the first force decreases, a force of a magnetic field of the magnet moves the firing pin from the firing position to the pre-firing position.