Credit Card Wallet with Elastic Strap and RFID Blocking
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Solution Overview
Problem
There is a need for a lightweight, compact, and easy-to-use device that can organize possessions like credit cards and money while also providing functional tools, such as blocking RFID signals, in a pocket-sized format.
Innovation Solution
A tool and wallet system comprising credit card-sized planar body portions with an elastic strap, featuring various tool functionalities like bottle openers, screwdrivers, wrenches, and RFID signal blocking capabilities, integrated into a single device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple separate devices are used for wallet, tools, and RFID protection, then each device can be optimized for its specific function, but the overall system becomes bulky and difficult to carry
Solution Approach 1:
The patent combines a wallet body with multiple integrated tools including bottle opener, can opener, scissors, and RFID blocking functionality into a single compact device. The wallet body serves as the structural foundation that houses all these functions, eliminating the need to carry separate tools and wallets.
Solution Approach 2:
The wallet body is designed as a multi-functional platform that simultaneously provides money/card storage, RFID protection, and various tool functions. Each tool is integrated into the wallet structure, allowing one device to perform multiple roles that traditionally required separate items.
2Ease of operation
If tools are made larger for better functionality, then tool performance improves, but portability and pocketability deteriorate
Solution Approach 1:
The tools are integrated into the wallet body in a way that utilizes the two-dimensional surface area of the wallet rather than extending outward in three dimensions. The bottle opener, can opener, and scissors are arranged on the wallet surface, allowing full functionality without increasing the overall envelope dimensions beyond credit card size.
Solution Approach 2:
Multiple tools are nested within or integrated into the wallet body structure. The scissors, for example, are folded or retracted into the wallet when not in use, while the bottle opener and can opener are formed as integral features of the wallet body itself, maximizing space utilization.
3Object-affected harmful factors
If RFID blocking material is added to protect cards, then security against RFID theft improves, but device thickness and weight increase
Solution Approach 1:
The RFID blocking functionality is achieved using thin film or layered material integrated into the wallet body structure. This approach provides effective RFID signal blocking while maintaining a thin profile and minimal weight increase, as the blocking material is distributed as a thin layer rather than added as a separate thick component.
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 system effectively organizes and protects credit cards and money while offering a range of tools in a compact, lightweight form, enhancing usability and security by blocking RFID signals.
Implementation Method 1
a strap, the strap wrapped around the first and second planar body portions, the strap taut to the planar body portion due to elasticity in the strap
Implementation Method 2
the first and second planar body portions provide for the blocking of RFID signals
Data Source
AI summary
A tool and wallet system includes a first and second planar body portions, the planar body portion approximately the size of a standard credit card, the first and second planar body portions provide for the blocking of RFID signals. The system further includes a strap, the strap wrapped around the first and second planar body portions, the strap taut to the planar body portion due to elasticity in the strap.


