Paper pulp refiner control system and method
US5947394A · kind A · utility
15Cited by
16References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 9, 1998 |
| Grant date | Sep 7, 1999 |
| Priority date | — |
| Expiry date | Oct 9, 2018 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21D1/002
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A rotary paper pulp refiner system and method includes a rotor having one or more refining elements mounted on a rotating shaft and complimentary non-rotating or stator elements defining with the rotating element a refining gap or gaps through which the paper stock material passes, and which the rotor is mounted for rotation on magnetic bearings that support the rotor shaft for rotation and define the axial and radial running position thereof. Optionally, a movable stator housing wall may also be controlled by a magnetic bearing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.