Screen cylinder
AssigneeAikawa Fiber Technologies Trust
InventorAku Asikainen
Life of this patent
Estimating the term…
Abstract
The present invention relates to a screen cylinder that is particularly suitable for screening, filtering, fractionating, or sorting cellulose pulp suspensions of the pulp and paper making industry, or other similar suspensions. The present invention relates more particularly to a screen cylinder formed from a plurality of screen wires leaving screening slots therebetween, and circular support elements. The support elements include openings/grooves for installation of the screen wires therein, so that at least one of the support rings is thermally deformed and clamps the screen wires in the openings/grooves of the rings.
Claims11
A screen cylinder formed of a plurality of screen wires with screening slots therebetween and substantially circular support rings, said support rings having openings for receiving said screen wires therein, wherein at least one of said circular support rings comprises a thermally-distorted circular support ring retaining at least one of the screen wires in the openings of the thermally-distorted circular support ring;
- wherein thermally-distorted comprises having at least a portion of the support ring thermally axially deflected wherein a free rim of the support ring distal the openings is thermally bent from an original unheated position.
Dependencies are inferred from the claim text.