Suction roll for dewatering a fibrous web
US8778142B2 · kind B2 · utility
0Cited by
9References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 13, 2011 |
| Grant date | Jul 15, 2014 |
| Priority date | — |
| Expiry date | Oct 13, 2031 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21F3/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A suction roll for dewatering a fibrous web, having a rotatable and perforated suction roll jacket and a suction box in the interior of the suction roll. The suction box has a first suction channel that extends in the interior of the roll essentially along the axis of the suction roll. The suction box also has a second suction channel that extends in the interior of the roll along the inner surface of the suction roll jacket and is delimited by seals. The first suction channel is connected to the second suction channel via at least one connecting channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.