Sterilizing method and apparatus
US6224826A · kind A · utility
16Cited by
4References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 18, 1999 |
| Grant date | May 1, 2001 |
| Priority date | — |
| Expiry date | Mar 18, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S261/48
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A method and apparatus for sterilizing water containing pathogen protozoa having shells in a simple manner without negative influencing the environment is disclosed. Ultrasonic waves are applied to drinking water to form fine cavitation bubbles which are used to destroy the shells of pathogenic protozoa. The residual chlorine in the drinking water along with an oxidizing action and effect of the ultrasonic wave, permit not only sterilization but also deodorization and decolorization.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.