Device and method for ventilating an offset pocket space in a papermaking machine
US6412192B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 30, 2001 |
| Grant date | Jul 2, 2002 |
| Priority date | — |
| Expiry date | Jan 30, 2021 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21F5/042
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The device (10) and method are used for ventilating an offset pocket space (12) located in a drying section of a papermaking machine by injecting air from at least one heated dry air supply inlet (11). The offset pocket space (12) is situated between three axially-parallel drying cylinders (20) over which consecutively runs a paper web (14). A first and a third of these cylinders (20) are vertically spaced from a second one. The paper web (14) is pressed against the first and the third cylinder (20) by a felt (16) which further runs around a felt roll (26) having a rotation axis parallel to that of the cylinders (20). The felt roll (26) is disposed between the three cylinders (20) in an offset position which is closer to the first cylinder (20) than the third cylinder (20).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.