Pressurized forming board
US5080760A · kind A · utility
19Cited by
14References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 26, 1991 |
| Grant date | Jan 14, 1992 |
| Priority date | — |
| Expiry date | Feb 26, 2011 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21F9/02
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A paper making machine forming board is described wherein the rate of drainage of the stock through the forming fabric is curtailed and controlled by applying a low positive air pressure (above ambient atmospheric) to the machine side of the forming fabric. Additionally, a controlled level of agitation is induced in the stock on the forming board, providing better initial paper formation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.