Segmented Projectile Tumbling for Energy Transfer

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Solution Overview

Problem

Existing projectiles, such as expanding, fragmenting, and frangible rounds, often fail to effectively transfer kinetic energy to targets, particularly in resilient materials like animal organs, and can be difficult to control in flight.

Innovation Solution

A customizable projectile design featuring a conical top portion connected to a cylindrical bottom via a narrow post, with sections tapering at different angles and grooves for stability, configured to tumble upon impact and segment into controlled pieces for enhanced energy dispersion and penetration.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If expanding, fragmenting, or frangible projectiles are used, then kinetic energy transfer to resilient targets is improved, but flight control stability deteriorates

Engineering Contradiction:

Improvekinetic energy transferVSAvoidflight control stability

Core Design Contradiction:

Use of energy by moving objectVSStability of the object's composition

Solution Approach 1:

The projectile is divided into multiple segments connected by flexible joints, allowing controlled fragmentation upon impact. This segmentation enables the projectile to transfer kinetic energy effectively to resilient targets while maintaining flight stability through the structured arrangement of segments and joints.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The projectile incorporates dynamic elements including flexible joints and adjustable weighting that allow it to adapt its configuration during flight and impact. This dynamic design enables stable flight control while facilitating effective energy transfer upon impact with resilient targets.

Inventive Principle:

Principle #15Dynamics

2Stability of the object's composition

If conventional projectiles are used, then flight stability is maintained, but kinetic energy transfer to resilient targets is insufficient

Engineering Contradiction:

Improveflight stabilityVSAvoidkinetic energy transfer

Core Design Contradiction:

Stability of the object's compositionVSUse of energy by moving object

Solution Approach 1:

The projectile features non-uniform mass distribution with specific weighting of segments and joints, creating localized properties that enhance both flight stability and kinetic energy transfer. The varying density and mass arrangement allow the projectile to maintain stability during flight while optimizing energy transfer to resilient targets upon impact.

Inventive Principle:

Principle #3Local quality

3Use of energy by moving object

If projectile segments are made to break apart, then energy dispersion is improved, but penetration capability deteriorates

Engineering Contradiction:

Improveenergy dispersionVSAvoidpenetration capability

Core Design Contradiction:

Use of energy by moving objectVSForce

Solution Approach 1:

The projectile is pre-configured with flexible joints and segmented structure that are designed to activate at specific moments during impact. This preliminary arrangement ensures that energy dispersion occurs optimally while maintaining sufficient penetration capability through the controlled timing and mechanism of segment separation.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The segmented design with flexible joints allows the projectile to maintain structural integrity for penetration, then controlled fragment into segments for energy dispersion. The segmentation is engineered to occur at the optimal moment, balancing penetration capability with energy dispersion effectiveness.

Inventive Principle:

Principle #1Segmentation

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 projectile effectively transfers kinetic energy to targets by tumbling and segmenting, creating larger and more permanent wound channels, thereby increasing lethality and humane effectiveness compared to conventional rounds.

Implementation Method 1

said projectile is configured to tumble upon impact with a target

Methodology Applied

Scientific EffectTumbling:

Implementation Method 2

The projectile effectively transfers kinetic energy to targets by tumbling and segmenting

Methodology Applied

Scientific EffectKinetic energy transfer:

Data Source

PatentUS12332035B1Customizable projectile designed to tumble

Publication Date: 2025.06.17 REKON LLC

AI summary

Projectiles and methods of making and using same are disclosed herein. A projectile comprises a first portion having a first cylindrical portion having a first flat end surface, a first section extending from the first cylindrical portion at a first acute angle, a second section extending from the first section at a second acute angle, and a tip section extending from the second section and terminating in a pointed tip. The projectile includes a second portion having a second cylindrical portion having a second flat end surface and a trailing portion having a generally frustoconical shape. The trailing portion tapers towards a trailing end of the projectile. A post couples the first cylindrical portion and the second cylindrical portion. The post is in contact with each of the first flat end surface and the second flat end surface.