Polymer Security Grille Condensation Prevention
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Solution Overview
Problem
There is a need for a decorative security panel that provides light transmission and security with a low-moisture security grille to prevent condensation, made from recycled materials to reduce waste, and produced at a competitive cost in the United States, while mimicking wrought iron's appearance but with lighter weight to lower transportation and retail costs.
Innovation Solution
A decorative security panel assembly featuring a polymer security grille made from high-density polyethylene, recycled graphite composite, or mixed polymers, with a wrought iron appearance, low moisture content, and high melting point, formed using CNC machines for rapid design cutting and assembly with translucent panels to prevent fogging and withstand heat, and manufactured without coatings to reduce toxicity and VOCs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional security grille is used, then security is provided, but condensation occurs on the translucent panels due to high moisture content
Solution Approach 1:
The patent changes the moisture content parameter of the security grille from high (traditional) to low (less than 0.05% by weight), which prevents condensation on the translucent panels while maintaining security functionality. This parameter change resolves the contradiction between providing security and preventing condensation.
2Shape
If wrought iron is used for the security panel, then a decorative appearance is achieved, but the weight is excessive, increasing transportation costs
Solution Approach 1:
The patent creates a copy of the wrought iron appearance using a different material (polymer composite) that has similar aesthetic properties but significantly lower weight. The security panel replicates the decorative look of wrought iron without inheriting its heavy weight, thus resolving the contradiction between appearance and weight.
Solution Approach 2:
The patent uses a composite material (polymer matrix with graphite or other fillers) that combines the aesthetic properties needed for a wrought iron appearance with the mechanical properties and low weight of polymers. This composite approach allows achieving the desired appearance while maintaining low weight for cost-effective transportation.
3Reliability
If high-density polyethylene is used for the security grille, then low moisture content and high melting point are achieved, but manufacturing complexity increases
Solution Approach 1:
The patent selects high-density polyethylene as the base material because its inherent parameters (low moisture content, high melting point) provide the required reliability. By changing the material parameter to HDPE, the patent achieves moisture resistance and heat resistance while the extrusion manufacturing process keeps the complexity manageable.
Data Source
AI summary
A decorative security panel assembly for insertion into an opening of a door or an opening of a window. The assembly can include a polymer security with a low-moisture content of no more than five wt %, such that the polymer security grille does not produce condensation within the assembly. A seal can be disposed about the polymer security grille. A translucent panel can be disposed over each side of the polymer grille and engaged with the seal. An air space can be formed between the two translucent panels, with the polymer security grille disposed within the air space. A first frame can be engaged over one of the translucent panels, while a second frame is engaged over the second translucent panel, forming a frame assembly. The frame assembly can be inserted into an opening of a door or an opening in a structure.