Screening sieves, notably for paper pulp
US5697503A · kind A · utility
5Cited by
2References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 12, 1995 |
| Grant date | Dec 16, 1997 |
| Priority date | — |
| Expiry date | Oct 12, 2015 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21D5/16
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Sieve with slots or holes, made from a U-shaped section, constituted by a stack of identical circles, each circle (1, 1') being made from a tapered U-shaped section of which the two ends are welded or mechanically connected to one another, characterized in that this stack of circles (1, 1') is maintained tightly between two rings (2-3, 2-'3') by a plurality of tie rods (4, 4') and in that the lateral walls of the circles in the stack rest on one another without any further fastening together, so that the walls of the sections can undergo elastic deformation under the effects of the tightening.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.