Faucet Escutcheon UV Illumination for Mold-Resistant Surfaces
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Solution Overview
Problem
Traditional faucet designs suffer from mold and bacterial growth due to crevices and gaps where water stagnates, posing hygiene risks and requiring frequent maintenance of temporary solutions.
Innovation Solution
Integration of ultraviolet light sources, particularly UV-C, with photocatalysts and sensors to disinfect and illuminate faucet surfaces, ensuring continuous microbial prevention and user safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If surface treatments and sealants are applied to reduce water retention, then mold and bacterial growth is temporarily inhibited, but the treatments require frequent reapplication and maintenance
Solution Approach 1:
The patent replaces mechanical surface treatments with a photocatalytic chemical system. Titanium dioxide photocatalyst coating is applied to the faucet mounting interface, which when exposed to UV light activates antimicrobial properties that continuously inhibit mold and bacterial growth without degrading or requiring reapplication like traditional surface treatments.
Solution Approach 2:
The patent changes the chemical state of the surface by applying a titanium dioxide photocatalyst coating. This coating remains dormant until activated by UV light, at which point it generates reactive oxygen species that continuously destroy organic matter and inhibit microbial growth, providing long-term protection without maintenance.
2Productivity
If mechanical solutions such as redesigned faucet structures are implemented, then water drainage is improved, but bacterial growth in hard-to-reach areas is not effectively addressed
Solution Approach 1:
The patent introduces UV light as an intermediary agent that penetrates into crevices and hard-to-reach areas where mechanical drainage solutions cannot eliminate bacteria. The UV-C light sources are positioned to illuminate the mounting interface, activating the photocatalyst coating and providing antimicrobial protection in areas that remain after water drainage improvements.
3Reliability
If UV-C light sources are integrated for disinfection, then microbial growth is effectively prevented, but system complexity and safety requirements increase
Solution Approach 1:
The patent applies the photocatalyst coating during manufacturing before the faucet is installed. This preliminary action ensures the antimicrobial protection is already in place and only requires UV light activation during use, eliminating the need for complex application systems or user intervention.
Solution Approach 2:
The photocatalyst coating provides self-service antimicrobial protection by automatically activating when exposed to UV light. The system requires no manual intervention, adjustment, or monitoring - the coating continuously destroys organic matter and inhibits microbial growth as long as UV light is present, simplifying the overall system architecture.
4Object-affected harmful factors
If proximity sensors are added for safe operation control, then user safety is improved, but device complexity increases
Solution Approach 1:
The patent uses periodic action by programming the UV-C light sources to operate only during specific times when the faucet is actively in use, as detected by the proximity sensor. This eliminates the need for continuous UV illumination, reducing safety risks while maintaining effective microbial prevention during critical periods.
Solution Approach 2:
The proximity sensor provides feedback about user presence to the control system, which automatically adjusts UV-C light operation accordingly. When users are detected near the faucet, the system activates UV-C illumination and photocatalyst operation; when users are absent, the system shuts down, providing safety feedback control that responds dynamically to actual conditions.
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
Provides long-term hygiene by effectively killing bacteria and mold, enhancing user safety with automated disinfection and aesthetic appeal, while minimizing health hazards and maintenance.
Implementation Method 1
Surface treatment using ultraviolet light. The ultraviolet light can comprise, for example, ultraviolet-C (UVC) light.
Implementation Method 2
Embodiments can use a light source in conjunction with a photocatalyst. For example, embodiments can use a combination of ultraviolet-A (UVA) light and a photocatalyst, such as titanium dioxide (TiO2).
Data Source
AI summary
Mounting hardware for a faucet including one or more light sources for illumination. The light source(s) can be configured to emit light from one or more vertically oriented surfaces of the mounting hardware. One or more sensors can acquire sensor data that can be used to control operation of the light source(s). The light sources can include visible and/or ultraviolet light sources. When included, the ultraviolet light can be directed onto one or more areas of one or more horizontally oriented surfaces located adjacent to the vertically oriented surface(s). The light sources can be located in an escutcheon of the mounting hardware.