Forward Folding Stabilizer Vanes for Payload Launch

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Solution Overview

Problem

There is a need for cost-effective and versatile cartridge components and systems that can handle complex payloads such as powders, liquids, and gels without requiring expensive specialty tooling, and can be adapted for various applications, including shotshells and other complex payloads like chemical, pyrotechnic, and non-lethal projectiles.

Innovation Solution

The development of a payload delivery system featuring a cup-shaped stabilizer with forward folding vanes, which provides stability and drag during flight, can be used as a standalone component or attached to a payload cup, allowing for the efficient launch of diverse payloads by imparting a sabot effect and separating cleanly from the payload after launch.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If traditional cartridge components are used for complex payloads, then payload delivery function is achieved, but manufacturing cost and device complexity increase significantly

Engineering Contradiction:
Improvemanufacturing costVSAvoidcomponent complexity
Core Design Contradiction:
Ease of manufactureVSDevice complexity

Solution Approach 1:

The stabilizer is divided into multiple vanes that can be folded forward during launch and deployed backward during flight. This segmentation allows the single component to perform multiple functions: containing the payload during launch and providing aerodynamic stability during flight, thereby reducing the need for additional specialized components and tooling.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The stabilizer component is designed to serve multiple functions: it acts as a payload container during launch, provides structural support, and transforms into an aerodynamic stabilizer during flight. This multi-functionality eliminates the need for separate specialized components for each function, reducing both manufacturing cost and device complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Manufacturing precision

If specialty tooling is used for complex payload components, then manufacturing precision is improved, but capital cost increases

Engineering Contradiction:
Improvecomponent precisionVSAvoidcapital cost
Core Design Contradiction:
Manufacturing precisionVSEase of manufacture

Solution Approach 1:

The stabilizer's geometric parameters are designed to automatically transform from a compact launch configuration to an extended flight configuration. By changing the effective surface area and orientation of the vanes through folding mechanics rather than requiring precision-machined specialized components, the system achieves the necessary aerodynamic properties using standard manufacturing processes.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If forward folding vanes are used in stabilizer, then stability and drag are improved during flight, but device complexity increases in pre-launched configuration

Engineering Contradiction:
Improveflight stabilityVSAvoidstabilizer structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The stabilizer transitions from a static, simple cylindrical structure during launch to a dynamic, extended vane structure during flight. The forward-folded vanes are held in a compact position during launch but are designed to deploy backward during flight, automatically providing aerodynamic stability and drag without requiring complex control mechanisms or additional components.

Inventive Principle:
Principle #15Dynamics

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

This solution enables the efficient and cost-effective launch of complex payloads by providing stability and drag, reducing the need for complex and expensive tooling, and allowing for the use of relatively low-cost materials, while ensuring accurate and consistent delivery of projectiles.

Implementation Method 1

the cup-shaped stabilizer can be used for its stabilizing function... or simply 'stabilizer'... which assists in stabilizing the payload during flight... imparting high stability and drag

Methodology Applied
Scientific EffectAerodynamic drag: Drag

Implementation Method 2

the cup-shaped stabilizer... when it is attached to another component... assists in stabilizing the payload during flight to any extent desired

Methodology Applied
Scientific EffectAerodynamic stability:

Data Source

PatentUS9982977B2Payload delivery system with forward folding stabilizer for cartridges
Publication Date: 2018.05.29 POLYWAD
  • US9982977B2 patent drawing
  • US9982977B2 patent drawing
  • US9982977B2 patent drawing

AI summary

This disclosure provides for payload delivery systems and cartridges and methods that incorporate the payload delivery systems. The payload delivery system can comprise a stabilizer having a longitudinally cut side wall defining a series of vanes that are folded forward in the pre-launched configuration. Cartridges that include the payload delivery system are disclosed, which can be used to deliver payloads such as solid projectiles, shot of all sizes, powders, gels, liquids, and other payloads to exploit their specific function.