Patent ID: 8848046
Filing Date: 2014-09-30
Classification: F42B

Abstract:
1. A round for launching from a gun, the round comprising: a cartridge case; a projectile body adjacent the cartridge case, wherein the cartridge case is crimped to the projectile body, and wherein the projectile body includes a plurality of aft-extending legs, each leg including a flat portion thereon; a pusher having a concave surface, said pusher disposed in the cartridge case and operable to push the projectile body upon firing the round; an imaging sensor comprising a passive infrared sensor, said imaging sensor disposed at least partially in the projectile body, said imaging sensor including a sensor lens including a convex surface, and a sensor base; a first kinetic energy absorber comprising Sorbothane® disposed around said sensor base; and a second kinetic energy absorber comprising Sorbothane® disposed around the sensor lens, wherein after the round is fired and the pusher exits the gun, the pusher separates from the projectile body and the second kinetic energy absorber separates from the imaging sensor, and wherein said second KE absorber is a hollow generally hemispherical shape with an annular base, and wherein said second KE absorber has an outer concave surface sized to mate to the imaging sensor lens convex surface, and wherein said second KE absorber also has an inner convex surface that is sized to mate to the concave surface of the pusher, and whereby said second kinetic further has a thickness “t” along a longitudinal centerline between the concave and convex surfaces of said second absorber, “t” being determined by the expected magnitude of acceleration forces that may be experienced by the projectile during launch.