Soft Body Armor Apron Pockets for Upward Bullet Encapsulation
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Solution Overview
Problem
Current soft body armor panels fail to effectively encapsulate and prevent penetration of.357 Magnum, .44 Magnum, and 9 mm bullets at a 45-degree upward angle, leading to potential damage to the wearer's face, neck, and chest, due to stitching failure and bullet petaling, especially under laboratory conditioning.
Innovation Solution
The layers of the armor panel are folded over at the top edge to form pockets that capture upwardly directed bullets, with various configurations including single or multiple folded layers, nested or stacked arrangements, and extensions towards the bottom edge, enhancing the panel's ability to encapsulate and prevent penetration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If current multi-layer construction with perimeter stitching is used, then the panel structure is stable, but the panel fails to encapsulate bullets at 45-degree upward angles
Solution Approach 1:
The patent divides the panel into distinct functional zones: a strike face layer for initial bullet impact, multiple intermediate layers for progressive energy absorption, and a backstop layer for final containment. This segmentation allows each layer to be optimized for specific ballistic functions, improving overall encapsulation capability without requiring uniform complexity throughout the entire panel structure.
Solution Approach 2:
The patent introduces a vertical dimension to bullet containment by arranging layers at different heights and angles. The strike face is positioned at a lower level than the backstop, creating a vertical path that forces bullets to traverse multiple layers at varying angles, thereby enhancing encapsulation of upwardly directed shots without simply adding more layers in a uniform horizontal stack.
2Strength
If more layers are added to increase ballistic protection, then penetration resistance improves, but the panel weight increases
Solution Approach 1:
The patent applies different material densities and thicknesses to different regions of the panel. The strike face uses thinner, lighter material optimized for initial impact distribution, while the backstop uses denser, heavier material optimized for final bullet containment. This local quality variation achieves high ballistic protection without uniformly increasing panel weight across all layers.
Solution Approach 2:
The patent combines multiple material types with different ballistic properties in a single panel construction. Lighter materials are used in layers where impact distribution is critical, while heavier materials are placed where energy absorption and containment are most needed. This composite approach optimizes the weight-to-protection ratio by assigning specific materials to specific functional zones rather than using uniform material throughout.
3Reliability
If traditional stitching methods are used to secure layers, then manufacturing is simple, but stitching fails under ballistic impact causing bullet escape
Solution Approach 1:
The patent incorporates preliminary reinforcement features during the manufacturing process, such as pre-positioned ballistic plates, pre-formed channel structures, and pre-stabilized layer arrangements. These preliminary actions create built-in stabilization mechanisms that prevent stitching failure under ballistic impact before the actual combat scenario occurs, eliminating the need for complex post-impact repairs or reinforcements.
4Reliability
If perimeter stitching is used to stabilize layers, then the panel structure is maintained, but bullets can still penetrate and escape along the top edge
Solution Approach 1:
The patent implements a nested containment structure where multiple layers are arranged concentrically or in nested sequences, with each layer containing the previous one. This nesting creates multiple containment zones that progressively trap bullets, preventing escape along the top edge without requiring complex external stabilization structures. The nested arrangement naturally directs bullet paths inward and downward into the panel depth.
Data Source
AI summary
A soft body armor panel where one or more layers are folded over as an apron at the top edge forming a pocket(s) centered on the top edge that captures a bullet directed upwardly. The folded layers can take any number of different configurations. The folded layers can be stacked or nested. Normal layers can separate folded layers and/or be within pockets of folded layers. The apron can be 1-20 inches or extend the full height of the layer.