Rotor with multiple foils for screening apparatus for papermaking pulp
US6942104B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 2, 2003 |
| Grant date | Sep 13, 2005 |
| Priority date | — |
| Expiry date | Sep 24, 2023 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21D5/026
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A rotor adapted for use in a hydrodynamic device comprising a cylindrical screen having a circumferentially continuous apertured zone. The rotor has an axis of rotation and includes a substantially cylindrical outer surface adjacent the cylindrical screen surface. The rotor further includes a plurality of sets of a plurality of adjacent vane members supported above a substantially cylindrical outer surface of a rotor by a plurality of brackets. The rotor has an axis of rotation and is mounted within and co-axial with the cylindrical screen to define an annular screening chamber between the rotor and the screen. The sets are equally spaced apart in a direction circumferential to the rotor axis, and the vane members extend the length of the screening chamber parallel to the rotor axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.