Metal Shell Wallet With RFID Blocking And Modular Storage
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Solution Overview
Problem
Conventional wallets are bulky due to multiple compartments, leading to discomfort and increased risk of card loss, and money clips provide inadequate security against RFID theft.
Innovation Solution
A wallet design featuring CNC machined metal shells with integrated RFID blocking material and modular components, including a silicone band for securing cards and cash, and a multi-tool for emergency use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If multiple compartments are added to hold more cards, then the card capacity increases, but the wallet thickness and bulkiness increase
Solution Approach 1:
The wallet transitions from a traditional flat horizontal layout to a vertical three-dimensional structure. Cards are stored in vertical pockets arranged along the height of the wallet rather than spread horizontally, allowing more cards to be held without increasing the wallet's width or thickness in the pocket-carrying dimensions.
Solution Approach 2:
Multiple card pockets are nested within the vertical structure of the wallet, with each pocket containing cards in a stacked arrangement. The pockets themselves are nested within the overall wallet body, maximizing space utilization in the vertical dimension while maintaining a slim profile.
2Quantity of substance
If more compartments and layers are added, then more cards can be stored, but the wallet becomes bulkier and uncomfortable to carry
Solution Approach 1:
By organizing storage vertically rather than horizontally, the wallet accommodates more cards without increasing the surface area that contacts the user's pocket, thereby maintaining comfort while increasing capacity.
Solution Approach 2:
The wallet is divided into multiple independent vertical pockets, each capable of holding several cards. This segmentation allows for efficient organization and access while maintaining a compact overall structure that does not compromise comfort.
3Ease of operation
If fabric and leather materials are used for compartments, then storage functionality is achieved, but the wallet stretches and becomes loose over time
Solution Approach 1:
The wallet combines metal components (for structural frame, clips, and bolts) with fabric or leather materials (for card pockets and lining). The metal elements provide rigid structural support and maintain shape over time, while the softer materials provide flexible card storage compartments, creating a composite structure that maintains both functionality and structural integrity.
Solution Approach 2:
The wallet structure is segmented into rigid metal framework components and flexible card-holding pockets. The metal clips, bolts, and frame provide stable structural support, while the fabric or leather pockets are contained within this stable framework, preventing overall wallet distortion while allowing individual pocket flexibility.
4Reliability
If a clip with spring tension is used to hold cards and currency, then security is improved, but the maximum number of cards that can be carried is limited
Solution Approach 1:
Instead of relying on a single clip's spring tension to hold all cards, the wallet segments cards into multiple vertical pockets. Each pocket independently holds cards through its own structure, distributing the holding function across multiple locations rather than concentrating it in one clip, thereby increasing total capacity while maintaining security.
Solution Approach 2:
Cards are held vertically in multiple pockets along the height of the wallet rather than being stacked horizontally under a single clip. This vertical arrangement in another dimension allows more cards to be secured through multiple contact points distributed throughout the wallet structure.
5Reliability
If conventional clip-based holders are used, then currency can be held, but RFID theft vulnerability increases
Solution Approach 1:
The patent introduces an RFID-blocking material as an intermediary layer between the cards and the external environment. This material is integrated into the wallet structure, positioned between the metal shell and the card pockets, serving as a mediator that blocks RFID signals while allowing the wallet to maintain its currency-holding function through the metal clip.
Solution Approach 2:
The wallet combines metal materials (for structural support and currency clipping) with RFID-blocking materials (for security protection). This composite construction allows the wallet to simultaneously provide mechanical holding capability and electromagnetic shielding, protecting cards from RFID theft while maintaining currency holding functionality.
Data Source
AI summary
A wallet includes a first metal shell with one or more openings on a shell perimeter adapted to clip one or more objects to the one or more openings; a second metal shell coupled to the first shell with a storage compartment therebetween; and securing a soft material to the first and second metal shells, wherein the soft material comprises compartment to store cards or money therein.