Cleaning method for using generation of cavitation
US5137580A · kind A · utility
17Cited by
1References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 13, 1989 |
| Grant date | Aug 11, 1992 |
| Priority date | — |
| Expiry date | Nov 13, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB06B3/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Ultrasonic waves of a low frequency and a high frequency are alternately emitted from one vibrator to liquid in a tank, cavitation generated due to the ultrasonic wave of the low frequency is eliminated and changed to small cavitation for forming the next large cavitation due to the ultrasonic wave of the high frequency and next the ultrasonic wave of the low frequency is emitted to the liquid in a tank and large cavitation is formed, whereby the cleaning effect is improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.