Outdoor water treatment apparatus to kill bacteria with ultraviolet light
US8324595B2 · kind B2 · utility
19Cited by
13References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 21, 2009 |
| Grant date | Dec 4, 2012 |
| Priority date | — |
| Expiry date | Jan 21, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W10/37
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
Bacteria in water 9 exposed outdoors are effectively killed with ultraviolet (UV) light by suppressing post-treatment increase in the bacteria population due to photoreactivation. The apparatus shines UV light on the water 9 to kill bacteria and has UV light emitting diodes (LEDs) 1 that emit UVA light with a primary emission peak of 320 nm-400 nm. The antibacterial action of the UVA light emitted by the UV LEDs 1 prevents proliferation of bacteria in the disinfected water 9 due to photoreactivation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.