Seamless Containment Bladder via Additive Manufacturing
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Solution Overview
Problem
Current storage and transportation systems for solids, liquids, and gases are limited by expensive materials, labor-intensive fabrication methods, and high waste factors, leading to prohibitive costs and inefficiencies, with the primary mode of failure being seam-related issues in containment bladders.
Innovation Solution
The method involves additive manufacturing using high tenacity yarns coated with a precursor protective coating, deposited in a 3D structure via CAD-programmed machines, heat-set, and coated with a final thermoplastic resin, eliminating the need for seams and enabling universal compatibility and reduced weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional cut-and-sew fabrication methods are used, then containment bladders can be manufactured with current materials and processes, but the process is labor intensive, generates high waste factors, and produces seam-related failures
Solution Approach 1:
The patent replaces the mechanical cut-and-sew fabrication system with an additive manufacturing system that deposits material layer-by-layer to create seamless containment bladders. This substitution eliminates the need for cutting, sewing, and adhesive application, thereby removing seam-related failure modes while reducing labor intensity and material waste.
Solution Approach 2:
The patent extracts and eliminates the seams from the containment bladder structure entirely. By using additive manufacturing, the bladder is created as a continuous seamless structure, removing the vulnerable seam components that are inherent in traditional fabrication methods.
2Adaptability or versatility
If traditional storage units are manufactured with unique materials for each content type, then compatibility with specific contents is achieved, but the cost increases and versatility decreases
Solution Approach 1:
The patent implements universal containment bladders with standardized coatings that can safely store multiple types of contents including fuels, chemicals, and other materials. The additive manufacturing process allows for consistent application of multi-functional coatings that provide broad chemical compatibility, eliminating the need for unique material formulations for each content type while maintaining safety and compatibility requirements.
3Manufacturing precision
If rigid storage units are produced with unique dies and tools for each product, then specific product requirements are met, but capital intensive set-up charges increase and scalability decreases
Solution Approach 1:
The patent replaces static, fixed dies and tools with a dynamic additive manufacturing system controlled by software. The manufacturing process can be reconfigured through digital modeling and programming, allowing rapid adaptation to different product specifications without physical retooling. This dynamic approach maintains manufacturing precision while dramatically reducing setup complexity and capital costs.
4Ease of manufacture
If traditional storage units are manufactured through multiple vertical steps, then complex assembly requirements are met, but the supply chain becomes long and complex, increasing lead times and waste
Solution Approach 1:
The patent merges multiple separate manufacturing steps (cutting, coating, sewing, adhesive application, quality inspection) into a single integrated additive manufacturing process. The system deposits material, applies coatings, and creates the final seamless structure in one continuous automated process, eliminating the need for multiple vertical supply chain steps and significantly reducing lead times and waste.
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 approach results in lighter, more cost-effective, and scalable containment bladders with reduced waste and increased durability, compatible with a wide range of contents, and significantly reduces the complexity and cost of the manufacturing process.
Implementation Method 1
coating the yarn materials with a precursor protective coating
Implementation Method 2
heat setting comprises heating the desired 3D structure at about 200° C. to about 500° C.
Implementation Method 3
heat setting the desired 3D structure to produce a final form
Implementation Method 4
applying a final coating material or combination of materials to the final form
Data Source
AI summary
A method of manufacturing a seamless, non-wicking containment bladder includes providing yarn materials, coating the yarn materials with a precursor protective coating, loading the yarn materials into an additive manufacturing process, depositing the yarn materials in pre-selected amounts and locations to form a desired structure, forming and heat-setting, and coating the seamless bladder.