Method for cleaning the filter medium in a suction dryer by focusing ultrasonic beams
US5653816A · kind A · utility
10Cited by
8References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 17, 1995 |
| Grant date | Aug 5, 1997 |
| Priority date | — |
| Expiry date | Apr 17, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2201/282
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention relates to a method for cleaning the filter medium in a suction dryer by means of ultrasound in an essentially continuous operation. According to the invention, the ultrasonic beams emitted from at least one ultrasonic oscillator (1, 12, 22, 36) are focused essentially near to the filter surface (4, 14, 25) of the filter medium, advantageously on the filter surface (4, 14, 25) of the filter medium, in order to create at least one ultrasound focusing zone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.