String Propelling Device Cooling and UV Illumination
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Solution Overview
Problem
Existing string propelling devices suffer from overheating, lack of operability in the dark, tangling issues, and noisy or unstable strings.
Innovation Solution
A device with a handle, a head containing a motor and driven wheels, a detachable cover with vents, and UV light sources for illumination, designed to propel a looped string through the air while cooling the device and preventing tangling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a string propelling device is operated continuously, then productivity increases, but the device overheats causing reliability to deteriorate
Solution Approach 1:
The patent implements a cooling system using pneumatic principles where air is drawn through vents in the housing and directed over heated components (motor and UV lights) to dissipate heat. This allows continuous operation by preventing overheating through forced air convection cooling.
2Adaptability or versatility
If UV light sources are added for dark environment operation, then adaptability improves, but energy consumption increases
Solution Approach 1:
The patent employs UV light sources that operate periodically or in pulses rather than continuously, allowing the device to maintain adaptability for dark environment operation while reducing overall energy consumption. The controller can activate UV lights only when needed for illumination.
3Productivity
If driven wheels are designed to propel string effectively, then productivity increases, but string tangling occurs causing reliability to deteriorate
Solution Approach 1:
The patent divides the string path into segmented sections with each driven wheel having specific grooves or channels that guide the string through defined pathways. This segmentation prevents random string movement and tangling while maintaining effective propulsion through controlled contact points.
4Stability of the object's composition
If string connection points are made seamless, then stability improves, but manufacturing complexity increases
Solution Approach 1:
The patent replaces complex mechanical string connection mechanisms with a simplified system where the string is looped and secured using friction-based retention in grooves or magnetic holders. This substitution maintains string stability during propulsion while significantly easing the manufacturing process.
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 device effectively addresses the drawbacks of existing models by providing a cooling system, UV illumination for use in the dark, easy assembly to prevent tangling, and reduced noise and instability through seamless string connection points.
Implementation Method 1
The two driven wheels each have a plurality of fan blades extending radially from a cap towards a circumference of each wheel, the plurality of fan blades operable to draw air into the detachable cover through the plurality of vents thereby cooling the device
Implementation Method 2
at least one UV light source. The at least one UV light source is operable to provide UV light at a wavelength of about 315 nm to about 380 nm
Data Source
AI summary
Provided herein are devices for propelling string through the air. The device includes two wheels, a motor, a head, a handle, a detachable cover, and at least one UV light source. At least one of the two wheels can be operable to be driven by the motor. The two wheels can be rotatably mounted to the head and form a gap operable to receive a portion of the looped string. The wheels then propel the string from the device.