Apparatus and method for treating roll surfaces and/or fabrics
US6491791B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 26, 2001 |
| Grant date | Dec 10, 2002 |
| Priority date | — |
| Expiry date | Mar 26, 2021 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21G3/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method is disclosed for cleaning roll surfaces on a paper-making machine or the like, particularly the grooves and drilled perforations of the rolls, and/or supported fabrics and/or for improving water drainage therein. According to the method, the properties of a moving roll surface (1) and/or fabric (6), as well as their behavior during a run, are affected by means of a gas mixture (5) in a manner, wherein the flow of the gas mixture is caused to be directed substantially toward the roll surface (1), grooves (2) made on the roll shell, perforations (2) of the roll shell and/or the fabric (6) or, alternatively, at least to a close proximity of at least one of the foregoing objects. The invention also relates to an apparatus suited for implementing the method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.