Digital Ring Sizing Device with Motorized Air Bladder
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Solution Overview
Problem
Existing ring sizing devices are cumbersome and do not provide a digital means to accurately determine a user's ring size, lacking convenience and precision in measurement and display.
Innovation Solution
A digital ring sizing device featuring a cylinder with a motorized air bladder and pressure sensor, where air pressure is adjusted using toggle switches to expand the bladder around the finger, with a display screen showing the calculated ring size based on the detected diameter.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a flexible measuring tape is wrapped around the finger, then ring size can be determined, but the process requires referral to a chart or table which is cumbersome and time-consuming
Solution Approach 1:
The patent replaces the mechanical flexible measuring tape system with an electronic measurement system. A sensor (optical, capacitive, or other type) is positioned within the cylindrical housing to directly detect finger circumference, and a processor automatically calculates ring size from this data, eliminating the need for manual chart reference and reducing user effort.
Solution Approach 2:
The patent creates a digital copy of the measurement process by using sensors to detect physical finger dimensions and converting them into digital signals. The processor then processes this digital information to determine ring size, replacing the physical chart-lookup process with automated digital calculation and display.
2Adaptability or versatility
If a combined measuring device with sliding indicator and flexible band is used, then both ring size and gemstone size can be measured, but the device becomes cumbersome and complex
Solution Approach 1:
The patent achieves versatility through software programming rather than mechanical complexity. The processor can be programmed to calculate different ring sizes based on various finger measurements (circumference, diameter, width), and can potentially adapt to measure different objects by adjusting measurement parameters digitally, all within a single simplified cylindrical device.
Solution Approach 2:
The patent extracts the measurement and calculation functions from complex mechanical components and concentrates them in a simple sensor-processor system. The cylindrical housing contains only essential components (sensor, processor, display, power source), removing unnecessary mechanical elements like sliding indicators and removable bands while maintaining measurement capabilities.
3Extent of automation
If an air bladder with motorized pump and pressure sensor is used, then automated finger measurement and digital display are achieved, but device complexity increases
Solution Approach 1:
The patent uses a motorized pump to inflate an air bladder that gently expands against the user's finger to apply controlled pressure for accurate measurement. Pressure sensors detect the force applied, and the processor calculates finger dimensions based on this data, enabling automated and consistent measurements without manual intervention.
Solution Approach 2:
The patent combines multiple functions (measurement, calculation, display, power management) into a single integrated cylindrical device. The sensor, processor, display screen, and power source are all housed together in one compact unit, simplifying the user interface and reducing the number of separate components the user must handle.
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
Enables quick, accurate, and convenient determination of ring size, allowing users to easily find the correct ring size for purchase, overcoming the limitations of prior art devices by providing a lightweight, durable, and user-friendly solution.
Implementation Method 1
The pump introduces a quantity of air into the air bladder via the one-way valve when the user manipulates the toggle switch during operating conditions
Implementation Method 2
A pressure sensor is attached directly to a top portion of the inner surface of the air bladder and is electrically coupled to the power source
Data Source
AI summary
A digital ring sizing device includes a cylinder removably positioned directly about the selected user finger, and a mechanism for determining a ring size of the selected user finger. The ring size determining mechanism is housed within an interior of the cylinder and connected directly thereto. A mechanism visually displays the determined ring size of the selected user finger, and is directly connected to an outer surface of the cylinder and further is electrically coupled to the ring size determining mechanism. The ring size of the user is automatically displayed in numeric characters by the visual displaying mechanism after the ring size determining mechanism calculates the ring size of the selected user finger.