Doped and non-doped titanium dioxide coated antimicrobial toilet
US10206548B1 · kind B1 · utility
Inventors
Key dates
| Filing date | Aug 16, 2017 |
| Grant date | Feb 19, 2019 |
| Priority date | — |
| Expiry date | Aug 16, 2037 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE03D2201/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An antimicrobial toilet includes an inner surface of a toilet bowl which includes a non-doped titanium dioxide coating. The titanium dioxide coating is photocatalytic and antimicrobial in the presence of ultraviolet (UV) light. In the absence of UV light, the inner surface of the toilet bowl is not antimicrobial. The UV light source may be actuated after the waste has exited the toilet bowl. Consequently, the waste may be used in digesters used to produce clean energy or for analysis to assess the user's health status without being exposed to the antimicrobial properties of the titanium dioxide coating. The UV light may then be actuated to disinfect the toilet bowl. The outer shell of the toilet is coated with a doped titanium dioxide. The doped titanium dioxide is photocatalytic and antimicrobial in the presence of visible light. The outer shell is antimicrobial when standard room lights are actuated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.