Thermoroll for a paper/board machine or finishing machine and a method for manufacturing the thermoroll
US6821237B1 · kind B1 · utility
5Cited by
11References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 22, 2002 |
| Grant date | Nov 23, 2004 |
| Priority date | — |
| Expiry date | Jan 22, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49563
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The object of the invention is a thermoroll for a paper/board machine or a finishing machine, the said thermoroll comprising a shell (2; 4, 5) of metallic, ceramic or composite material, the shell incorporating ducts (3; 9) for passing a heating medium from one axial end of the shell to its opposite end. The shell is made by means of casting or powder metallurgical methods, and the ducts (3; 9) are formed in the matrix material of the shell which is of metal and/or ceramic, directly in connection with manufacture. A further object of the invention is a method for manufacturing a thermoroll.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.