Method and apparatus for cleaning paper making felt
US4193842A · kind A · utility
12Cited by
11References
20Claims
0Family size
Inventor
Key dates
| Filing date | Aug 9, 1978 |
| Grant date | Mar 18, 1980 |
| Priority date | — |
| Expiry date | Aug 9, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB08B3/123
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method and apparatus for cleaning a paper making felt continuously during the paper making process, and wherein the moving felt is passed through a cleaning bath, and ultrasonic vibrations are applied substantially uniformly across the entire width of the felt while the felt is immersed in the bath, to thereby achieve uniform cleaning of the felt and thus uniformity in the paper produced on the machine. A circulation system for the bath is provided for continuously separating the dislodged fibrous residue therefrom, while retaining the chemicals and heat, and the apparatus includes provision for readily replacing the felt.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.