RF Shielded Wearable Wallet With L-Shaped Zipper
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Solution Overview
Problem
There is a need for a portable apparatus and method to securely store personal items that protect against unauthorized collection of personal information through electromagnetic, radio frequency, and magnetic field transmissions, particularly addressing the risk of RFID hacking and physical theft.
Innovation Solution
A portable apparatus comprising multiple portions with RF and MF blocking materials embedded between outer and inner layers, featuring an L-shaped zipper design and key chain band, which can be integrated into accessories and clothing, using a method involving cutting and stitching of materials with adhesive application to create secure pockets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If RF and MF blocking materials are embedded in the apparatus, then protection against electromagnetic signals is improved, but device complexity increases
Solution Approach 1:
The patent embeds RF and MF blocking materials within the multi-layer structure of the apparatus, nesting protective functional layers between outer and inner layers. This nesting approach integrates electromagnetic protection into the existing structure without requiring separate external shielding components, thereby improving protection while controlling complexity.
Solution Approach 2:
The apparatus utilizes composite material construction by combining different materials (outer material, inner material, RF blocking material, MF blocking material) into a single integrated structure. This composite approach allows simultaneous achievement of mechanical durability, RF shielding, and MF shielding functions within one unified apparatus, resolving the contradiction between protection and complexity.
2Reliability
If multiple layers of blocking materials are added, then transmission protection is improved, but manufacturing complexity increases
Solution Approach 1:
The patent divides the apparatus into distinct segments or layers, with each layer having a specific function (outer material for durability, RF blocking material for radio frequency protection, MF blocking material for magnetic field protection, inner material for comfort). This segmentation allows each component to be manufactured separately using standard processes, then assembled together, simplifying the overall manufacturing despite the multi-layer structure.
Solution Approach 2:
The manufacturing process follows a nested assembly approach where blocking materials are embedded between outer and inner layers in a systematic sequence. This nested construction method provides a clear, repeatable manufacturing workflow that reduces complexity compared to creating a monolithic multi-functional structure.
3Reliability
If an L-shaped zipper design is used, then prevention of contents loss is improved, but device complexity increases
Solution Approach 1:
The patent employs an asymmetric L-shaped zipper design instead of a conventional straight zipper. This asymmetric configuration creates a corner-securing effect where the zipper follows two perpendicular edges, forming an L-shape that mechanically prevents contents from slipping out at corners. The asymmetric path provides enhanced security through geometric constraint rather than through complex locking mechanisms.
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 apparatus effectively blocks RF and MF signals, providing protection against data theft and physical loss, while maintaining durability and style, with the L-shaped zipper design preventing contents from falling out and the RF blocking material ensuring secure transmission protection.
Implementation Method 1
Electromagnetic shielding that blocks radio frequency (RF) electromagnetic radiation is also known as RF shielding
Implementation Method 2
Electromagnetic shielding that blocks magnetic frequency (MF) transmissions is also known as MF shielding
Implementation Method 3
Electromagnetic shielding is the practice of surrounding electronics and cables with conductive or magnetic materials to guard against incoming or outgoing emissions of electromagnetic frequencies (EMF)
Data Source
AI summary
An apparatus and method of making the same is presented. The apparatus may comprise a front portion comprising a front exterior panel and a front interior panel, a back portion comprising a back exterior panel and a back interior panel, the back connected along two sides of the back exterior panel to two corresponding sides of the front exterior panel; and a closure part connecting the non-connected sides of the front exterior panel and the back exterior panel. The front interior panel and the back exterior panel may each comprise a slit opening for a pocket. The closure part may comprise a zipper having a key tab. The apparatus may comprise an RF blocking material. The front may further comprise a flat portion having embossed text, and may also comprise a key chain band. The apparatus may be a wallet, handbag, or other luxury accessory, and/or a wearable item.