Roy Lee Kelly

US Patent:

20160258726, Sep 8, 2016

Filed:

Mar 10, 2015

Appl. No.:

14/642818

Inventors:

- Alexandria VA, US
MARCELO EDGARDO MARTINEZ - CORDOBA, AR
NICOLAS HORACIO BRUNO - CORDOBA, AR
ROY KELLY - ALEXANDRIA VA, US

International Classification:

F42B 8/02

Abstract:

A training ammunition cartridge comprises a projectile and a cartridge case with a pyrotechnic propellant. The projectile has a projectile body with at least one compartment therein forming a void and containing a material that transitions from a solid to a liquid after set-back and after exiting from a barrel of a gun. The void is of such configuration as to cause the liquid material therein to induce forces and moments that, after a period of stable ballistic flight, destabilize the projectile and shorten its flight. Alternatively, the projectile void contains a solid mass that is released to shift its position after set-back and after the projectile exits from the barrel of the gun, wherein the void is of such configuration as to cause the mass, upon shifting, to induce forces and moments that, after a period of stable ballistic flight, destabilize the projectile and shorten its flight.

US Patent:

20140283706, Sep 25, 2014

Filed:

Mar 20, 2014

Appl. No.:

14/220453

Inventors:

- Kennebunk ME, US
Roy Kelly - Alexandria VA, US
Marcelo Eduardo Martinez - Cordoba CO, US

International Classification:

F42B 12/38
F42B 8/02
F42B 12/40
F42B 8/12

US Classification:

102513

Abstract:

A training ammunition projectile has a solid chemical component disposed in a base compartment that produces a gaseous visible plume after impact. The ammunition cartridge generates kinetic energy while propelling the projectile through a weapon barrel. This firing process imparts heat into a projectiles driving band. When the projectile is in flight, heat passes from the projectile's driving band into a compartment in the projectile housing the chemical component. When the component is exposed to increasing heat and low pressure, the it undergoes rapid sublimation. The projectile is configured with a vent opening in its base for emergence of the gaseous plume during flight. The opening is preferably capped to allow for stable storage and to prevent any gas from escaping until the projectile is fired.