Ballistic Vest Ventilation Panel Grooves
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Solution Overview
Problem
Standard ballistic-resistant vests trap heat, leading to life-threatening overheating and discomfort for police officers, causing many to avoid wearing them, and existing ventilation solutions like sewn-in foam spacers are ineffective and uncomfortable.
Innovation Solution
A ventilation system using flexible, semi-rigid plastic panels with vented grooves positioned between the vest and the body, allowing airflow and maintaining a consistent separation to keep the wearer cool and dry, while also enhancing ballistic resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If standard ballistic-resistant vests are worn, then ballistic protection is provided, but heat is trapped leading to life-threatening overheating
Solution Approach 1:
The vest is divided into modular panels with integrated ventilation channels and grooves, creating segmented pathways for airflow through the ballistic protective layers without compromising their integrity
Solution Approach 2:
Ventilation channels and grooves act as intermediary pathways between the outer ballistic vest and the wearer's body, allowing heat and sweat to be transported away from the body while maintaining ballistic protection
2Length of stationary object
If sewn-in foam spacers are used to create ventilation spaces, then separation between vest and body is achieved, but the foam is readily compressible and subject to failure
Solution Approach 1:
Flexible ventilation channels and grooves are integrated into the vest structure, allowing the ventilation spaces to maintain their geometry under compression while adapting to body movement, eliminating the need for separate foam spacer components
Solution Approach 2:
The vest combines ballistic protective materials with integrated ventilation structures in a composite construction, where the ventilation channels are formed as part of the vest layers themselves rather than as separate added components
3Length of stationary object
If foam spacers are used for ventilation, then separation is created, but the foam acts as heat-trapping insulation that exacerbates overheating
Solution Approach 1:
The ventilation channels and grooves create porous pathways through the vest structure that allow continuous airflow, preventing the trapping of heat and moisture while maintaining the separation needed for ventilation effectiveness
4Length of stationary object
If sewn-in foam spacers are used, then ventilation spaces are created, but the spacers bunch together leading to discomfort and encumbering movement
Solution Approach 1:
The ventilation channels are designed as flexible, dynamic structures that adapt their configuration based on body movement and compression, maintaining effective ventilation pathways without bunching or creating discomfort points
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 system effectively reduces body temperature by 6-8 degrees Fahrenheit and provides 30% less cratering damage from ballistic tests, ensuring officers can wear vests without overheating or discomfort while maintaining ballistic protection.
Implementation Method 1
the grooves create a slight, but highly effective, separation of the vest and body... the separation of the vest from the wearer's body is approximately one-half inch... allowing constant airflow
Implementation Method 2
the grooves of the panels features holes to permit the transmission of sweat therethrough
Data Source
AI summary
Disclosed are ventilation systems for a ballistic resistant vest and related methods of creating a cooling barrier between a wearer's body and a ballistic vest. In a preferred embodiment, the ventilation system may be defined by a panel that features vented grooves. In a preferred mode of use, the panel is preferably positioned between a vest and the torso of a wearer of the vest whereby a space is created therebetween the vest and wearer so that air may freely flow. Suitably, the tension of the vest against the body is sufficient to hold the panel in place between the body and the vest.