Projectile Cartridge Assembly with Thrust-Post Seating for Reliable Firing
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Solution Overview
Problem
Existing launcher systems face issues with accuracy and cost when using non-lethal projectiles, as they require specialized equipment and can be inaccurate, and the shifting of cartridges within the barrel bore reduces impact energy, leading to firing failures.
Innovation Solution
A projectile cartridge assembly with a base-insert subassembly, jacket subassembly, and thrust post design that ensures proper loading, seating, and firing operations, using a combustion chamber with a propellant charge and venting mechanism to improve accuracy and reduce costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a piston/rocket projectile with propellant charge is used in a launcher system, then the projectile can be propelled forward with sufficient thrust, but the cartridge may shift within the barrel bore prior to ignition, reducing impact energy and causing firing failures
Solution Approach 1:
The cartridge assembly is pre-configured with the projectile, propellant charge, and ignition components in a integrated cartridge casing before insertion into the launcher. This preliminary assembly ensures proper positioning and prevents shifting during the firing sequence, eliminating the reliability issue while maintaining thrust performance
Solution Approach 2:
The invention employs a nested structure where the projectile is positioned within the cartridge casing, the propellant charge is contained within a combustion chamber inside the cartridge, and the ignition system is integrated within the same assembly. This nested configuration ensures all components remain in fixed relative positions, preventing cartridge shift and ensuring reliable firing while delivering sufficient thrust
2Object-affected harmful factors
If specialized equipment is used for non-lethal projectiles, then the projectiles can be designed to disintegrate upon target impact, but the equipment cannot be used for lethal applications
Solution Approach 1:
The launcher system and cartridge assembly are designed with universal components that can accommodate different projectile types. The cartridge casing, combustion chamber, and ignition system form a standardized platform that can fire both lethal and non-lethal projectiles, eliminating the need for specialized equipment while maintaining controlled penetration capabilities through projectile design rather than system design
3Adaptability or versatility
If beanbags or rubber projections are used in lethal weapon launcher systems, then non-lethal ballistics can be employed, but the system becomes inaccurate and poses potential dangers
Solution Approach 1:
The system segments the ballistic function from the weapon platform. The launcher provides standardized, accurate firing capabilities, while the projectile design (including frangible elements, fluid-filled capsules, or rubber coatings) provides the non-lethal effect. This segmentation allows accurate delivery of various non-lethal projectile types without compromising the launcher's precision
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 design enhances accuracy and reliability of non-lethal projectile launches by ensuring proper seating and firing, while allowing for cost-effective use in both lethal and non-lethal applications.
Implementation Method 1
a combustion chamber therein; the combustion chamber including a propellant charge
Implementation Method 2
the base rear end including a primer recess cavity
Data Source
AI summary
A cartridge and launcher system for firing projectiles and method of firing the same. The launcher system has a chamber, barrel forward the chamber, and a bolt rearward of the chamber capable of activating a cartridge. The cartridge is a projectile assembly which includes a base insert subassembly having a base and a cartridge combustion insert, and a jacket subassembly having a jacket housing and a thrust post secured therein. The thrust post being couplably engaged with the jacket housing. A casing is couplable to the jacket housing assembly. The combustion insert holds a propellant charge in a combustion chamber, and the thrust post extends therewithin. Upon activation of the charge, gases force the thrust post away from the base, uncoupling the assembly from the base insert subassembly.