Apparatus for dewatering in a paper machine
US4163688A · kind A · utility
31Cited by
7References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 25, 1977 |
| Grant date | Aug 7, 1979 |
| Priority date | — |
| Expiry date | Apr 25, 1997 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21F3/04
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Dewatering of a paper web is enhanced by steam treatment in the press section of a papermaking machine wherein the web is continuously passed around a substantial sector of a suction roll between two nips formed with the suction roll by a water-receiving roll and a plain roll. A steam box is mounted adjacent the web between the nips to subject the web to treatment steam in that sector. The steam can be saturated or superheated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.