Photocatalyst and pulsed light synergism in deactivation of contaminants
US5658530A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 3, 1996 |
| Grant date | Aug 19, 1997 |
| Priority date | — |
| Expiry date | Apr 3, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65B55/14
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An improved method and apparatus for deactivating contaminants involves illuminating one portion of the contaminants with light having frequencies within a first prescribed frequency range, resulting in the deactivating of the one portion of the contaminants, and illuminating another portion of the contaminants with light having frequencies within a second prescribed frequency range, the other portion being at a titanium dioxide supplemented surface, so as to initiate the release of a highly reactive agent in a reaction in which titanium dioxide serves as a catalyst. The highly reactive agent deactivates the other portion of the contaminants.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.