Nested Flexible Sidewall RF Shielding for Wearable Articles
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Solution Overview
Problem
Existing wearable solutions for protecting credit cards, debit cards, and electronic devices from radio frequency waves lack ease of use, waterproofing, and effective sealing, making them impractical for daily use.
Innovation Solution
A wearable apparatus with a flexible, removably engageable wrist band featuring nested flexible sidewalls with radio frequency blocking and waterproof materials, including a zipper for easy access and a waterproof seal to encase articles securely.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If electrically conductive flexible fabric is used to create a pocket for blocking radio signals, then flexibility and conductivity are improved, but the ability to seal the opening effectively is worsened
Solution Approach 1:
The patent uses a composite structure combining electrically conductive fabric with a separate closure mechanism. The conductive fabric provides RF shielding while the closure system (zipper, flap, or magnetic seal) provides the sealing function, allowing both requirements to be met through material and structural composition.
Solution Approach 2:
The pocket structure is divided into separate functional components: the conductive fabric body for RF blocking and a distinct closure mechanism for sealing. This segmentation allows each component to optimize its specific function without compromising the other.
2Reliability
If the opening in the conductive fabric pocket is minimized to block radio frequency waves, then RF shielding effectiveness is improved, but ease of access to dispose and remove articles is worsened
Solution Approach 1:
The closure mechanism is designed to be dynamically openable and closable, allowing the opening to transition between a large accessible state (when open) and a minimized sealed state (when closed). This dynamic behavior resolves the contradiction between needing large access for convenience and small opening for RF blocking.
Solution Approach 2:
The closure mechanism is designed to maintain a sealed state by default, with the opening minimized to block RF signals. When access is needed, the user performs the preliminary action of opening the closure, which temporarily increases the opening size without compromising the overall shielding effectiveness when closed.
3Adaptability or versatility
If an elastomeric seal is used to accommodate surface unevenness, then sealing adaptability is improved, but electrical conductivity is worsened
Solution Approach 1:
The sealing function and导电 function are separated into different components. The elastomeric material provides adaptive sealing to accommodate surface unevenness, while the conductive fabric provides RF shielding. This segmentation allows each material to perform its optimal function without the trade-off present in attempting to combine both properties in a single material.
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 provides effective radio frequency shielding and waterproofing, ensuring secure protection of articles while being easy to use and convenient for daily carry.
Implementation Method 1
the second flexible surrounding sidewall is constructed of a radio frequency blocking material
Implementation Method 2
a waterproof seal to encase articles securely
Data Source
AI summary
An article shield apparatus adapted to protectively encompass an article, the apparatus including a first flexible surrounding sidewall that acts as a protective cover, a second flexible surrounding sidewall that is nested within the first flexible surrounding sidewall, the second surrounding sidewall functions as a radio frequency shield, in addition, a third flexible surrounding sidewall that is nested within the second surrounding sidewall with the third surrounding sidewall being constructed with from a waterproof material, wherein the third surrounding sidewall holds the article thus resulting in operationally the article being substantially protected from water and radio frequency waves.