Reactive Shot Shell Breaching with Tapered Inert Capsule
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Solution Overview
Problem
Existing door-breaching methods, such as using battering rams and conventional shotgun shells, expose operators and cause collateral damage due to ricochet and back spray, necessitating a safer and more controlled approach.
Innovation Solution
A specialized shot shell with a reactive material pellet enclosed in a tapered inert capsule, combined with a cushion wad and smokeless propellant, designed for use in a shotgun to breach doors with reduced collateral damage and operator exposure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If conventional shotgun shells are used to breach doors, then the door can be broken open, but ricochet and back spray cause collateral damage and operator exposure
Solution Approach 1:
The patent converts the harmful ricochet and back spray effects into beneficial controlled fragmentation. The shell is designed to fragment in a controlled manner upon impact, with fragments directed forward through the door rather than ricocheting backward. The tapered inert capsule contains the reactive material pellet, which upon impact creates a controlled thermal and mechanical effect that breaches the door without causing harmful back spray or unpredictable ricochet
Solution Approach 2:
The patent changes the physical and chemical parameters of the projectile. Instead of using conventional shot or slug, it employs a reactive material pellet (such as aluminum or other pyrotechnic compositions) enclosed in a tapered inert capsule. This changes the impact mechanism from purely kinetic to a combination of kinetic, thermal, and chemical effects, allowing door breaching with reduced collateral damage
2Ease of operation
If a battering ram is used to breach a door, then the door can be broken open, but the operator is completely exposed when the door bursts open
Solution Approach 1:
The patent replaces the mechanical battering ram system with a projectile-based system. Instead of physically swinging a heavy ram and exposing the operator to the bursting door, the operator fires a projectile from a distance. The projectile carries the breaching function through its reactive material, eliminating the need for close-contact mechanical impact and protecting the operator from exposure when the door opens
3Strength
If shot shell penetration is increased to breach doors effectively, then breaching capability improves, but collateral damage beyond the door increases
Solution Approach 1:
The patent applies local quality by concentrating the breaching effect at the precise impact point on the door. The tapered inert capsule focuses the reactive material pellet's energy on a small area, creating intense local thermal and mechanical effects that penetrate the door. This localized effect prevents energy dispersion that would otherwise cause collateral damage to surrounding structures or personnel beyond the door
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The shot shell effectively breaches doors with controlled penetration and minimal collateral damage, providing a safer and more efficient method for tactical entry by utilizing the kinetic impact and thermal energy from the reactive material to break open barriers without exposing the operator.
Implementation Method 1
The projectile includes a reactive material pellet that is partially covered by a taper-shaped inert capsule
Implementation Method 2
a propellant, and a primer for igniting the propellant. The projectile, the cushion and the propellant are contained within the casing
Implementation Method 3
The shot shell effectively breaches doors with controlled penetration and minimal collateral damage, providing a safer and more efficient method for tactical entry by utilizing the kinetic impact and thermal energy from the reactive material to break open barriers
Data Source
AI summary
A shot shell is disclosed. The shot shell includes a casing, a projectile, a cushion wad having a sabot, a propellant, and a primer for igniting the propellant. The projectile, the cushion and the propellant are contained within the casing. The projectile includes a reactive material pellet that is partially covered by a taper-shaped inert capsule.