Method for contact-free drying of a paper web or equivalent
US6192602A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 18, 2000 |
| Grant date | Feb 27, 2001 |
| Priority date | — |
| Expiry date | Jul 18, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF26B13/104
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Method for drying and/or cooling a web in which a web is passed over an arcuate circumference of a blow device, a gas is directed from an interior of the blow device at the web through first openings formed in a mantle of the device to form a support zone between the mantle and the web, and moistened exhaust gas is drawn from the support zone into the interior of the blow device through second openings formed in the mantle. A revolving edge support is arranged at each end of the blow device to support the web during the passage of the web over the circumference of the blow device, the edge supports being separate from the blow device, and the edge supports include interior circumferential and/or friction surfaces to seal the support zone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.