Yankee dryer for drying a pulp web
US8919008B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 6, 2011 |
| Grant date | Dec 30, 2014 |
| Priority date | — |
| Expiry date | Aug 2, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49826
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention relates to a Yankee dryer (1) made of steel with a cylindrical steel shell (2) that is closed off at each end by a cylinder end cover (3, 4). According to the invention the Yankee dryer (1) has a one-piece central shaft (7) with a first and a second connecting flange (8, 9) to join the central shaft (7) to the end covers (3, 4), where the diameter of the first connecting flange (8) is smaller than the diameter of the opening (6) in the second end cover (4) so that the central shaft (7) can be pushed through this opening (6) into the Yankee cylinder (1). The invention also refers to a manufacturing process for a Yankee dryer (1).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.