Detectable Refill for Writing Implement
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Solution Overview
Problem
Conventional pens used in environments like pharmaceutical and foodstuff manufacturing are wasteful and pose health risks due to the inability to detect separable components, leading to potential contamination and quality issues, as they are typically discarded as a whole unit when the ink expires, and separable components may go undetected.
Innovation Solution
A writing implement with a separable internal component featuring walls made of a plastics material infused with metal and/or X-ray detectable particles, allowing detection by metal and X-ray detection apparatus, both when integrated and when separated, and a two-part housing design for easy refill replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the pen is provided as a one piece integral unit to ensure detectability, then detection reliability is improved, but material waste increases and environmental impact worsens
Solution Approach 1:
The pen is divided into separable components (housing and refill) with location means to maintain detectability when separated. The detectable material is distributed across components so that each remains detectable independently, resolving the contradiction between separability and detection reliability.
2Reliability
If detectable material is added to make separable components detectable, then detection capability is improved, but device complexity increases
Solution Approach 1:
Detectable material is added locally to specific components (housing and refill) rather than throughout the entire pen. This targeted approach maintains detection capability while minimizing the increase in device complexity by only modifying necessary parts.
3Device complexity
If the entire pen is discarded when ink expires, then detection simplicity is maintained, but productivity decreases due to waste
Solution Approach 1:
The refill is designed to be discarded and replaced while the housing is recovered and reused. This allows the detectable housing to remain in use multiple times, improving productivity by reducing waste while maintaining detection simplicity through the persistent detectable material in the housing.
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
Ensures that all components of the writing implement, including the refill, are detectable by metal and X-ray detection, preventing contamination and reducing waste by allowing for the separation and replacement of the refill without discarding the entire pen, enhancing safety and reducing environmental impact.
Implementation Method 1
at least a portion of said walls include at least one material which is detectable by metal and/or X-ray detection apparatus
Implementation Method 2
at least a portion of said walls include at least one material which is detectable by metal and/or X-ray detection apparatus
Data Source
AI summary
The invention relates to a writing implement such as a pen which includes a housing and an internal component in which there is provided a reservoir of ink. The internal component typically includes a portion such as a ballpoint which allows ink to be transferred from the reservoir to a surface to which the said portion is applied. The writing implement and/or internal component is rendered detectable by metal detection and/or X-ray detection apparatus when the internal component is within range of the same so that the internal component is detectable when separated, deliberately or inadvertently, from the remainder of the writing implement.