Explosion Vent Buckle Tabs for Non-Fragmenting Pressure Relief
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Solution Overview
Problem
Existing vent apparatuses for protecting structures from abnormal pressure conditions often fragment upon actuation, leading to potential damage and inefficiencies in pressure relief.
Innovation Solution
A vent apparatus featuring a burst member retained by non-fragmenting, bendable tabs that move to a member-clearing position without breaking, allowing rapid opening to relieve abnormal pressures without tab fragmentation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional vent apparatus are used, then pressure relief function is provided, but the tabs fragment upon actuation causing potential damage and inefficiencies
Solution Approach 1:
The patent changes the physical state and mechanical properties of the tabs by specifying material composition (aluminum, stainless steel, or other non-fragmenting materials) and geometric parameters (thickness between 0.005 to 0.030 inches, length between 0.5 to 2.0 inches). These parameter changes enable the tabs to bend and buckle without fragmentation, resolving the contradiction between maintaining venting efficiency and preventing harmful fragmentation.
Solution Approach 2:
The patent introduces dynamic behavior to the tabs by designing them to bend and buckle in a controlled manner during actuation. The tabs transition from a rigid holding state to a flexible buckling state, allowing the burst member to open while the tabs remain intact. This dynamic approach eliminates fragmentation while maintaining the pressure relief function.
2Speed
If the tabs are designed to break upon actuation, then the burst member can open quickly, but fragmentation occurs causing potential damage
Solution Approach 1:
The patent specifies precise material and dimensional parameters for the tabs (thickness 0.005 to 0.030 inches, length 0.5 to 2.0 inches, material composition) that enable rapid buckling without breakage. These parameter changes allow the tabs to deform quickly enough to maintain fast opening speed while avoiding the fragmentation that would cause damage.
3Stability of the object's composition
If the tabs are made robust to prevent fragmentation, then structural integrity is maintained, but the complexity of designing non-fragmenting bendable tabs increases
Solution Approach 1:
The patent resolves the complexity issue by defining specific material and dimensional parameters rather than requiring complex structural designs. The tabs are simple flat elements with specified thickness (0.005 to 0.030 inches) and material composition, which inherently provide the needed integrity through proper parameter selection rather than through design complexity.
4Speed
If the tabs are made thin and flexible for easy buckling, then rapid opening is achieved, but the tabs may fragment under stress
Solution Approach 1:
The patent identifies an optimal parameter range for tab thickness (0.005 to 0.030 inches) and material properties that simultaneously achieves rapid buckling and prevents fragmentation. This parameter optimization allows the tabs to be thin enough for easy deformation yet strong enough to maintain integrity during the buckling process.
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 solution ensures efficient pressure relief without tab rupture, maintaining structural integrity and venting efficiency, independent of material thickness and insensitive to torque and load, suitable for both high and low-pressure conditions.
Implementation Method 1
the tabs bend or buckle to a member-clearing position without fragmentation of the tabs
Data Source
AI summary
Improved, non-fragmenting, high efficiency vent apparatus (10, 78) are provided for protecting a structure (12) from potentially damaging or destructive abnormal pressure conditions. The apparatus (10, 78) is positioned in covering relationship to a vent opening (14) formed in the structure (12), and generally includes a burst member (16) and a tab assembly (18) equipped with a series of tabs (56); the tabs (56) bend or buckle to a burst member-clearing position when the vent apparatus (10, 78) experiences an abnormal pressure condition, thereby permitting rapid opening of burst member (16) to thus protect structure (12). The burst member (16) may be of domed or flat construction, and can be in the form of a quadrate panel or any other desired shape.