Paper-making screen apparatus

Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – With classifying – separating or screening of pulp

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Details

162251, 162380, 209233, 209235, 209395, 209411, D21C 908, D21C 700

Patent

active

060511036

ABSTRACT:
A paper-making screen apparatus for separating foreign matters from paper-making raw materials is formed of a screen having a first annular end plate located at an end; a second annular end plate located at the other end thereof, having a plurality of openings for male screws; a plurality of interval keeping members secured to the first and second end plates to keep an interval therebetween, and having female screws on the side facing the second end plate; a plurality of male screws engaging the female screws; and a plurality of rod-shaped members connected to the first and second end plates, and annularly arranged parallel to each other at certain intervals. The first and second end plates hold ends of the plurality of rod-shaped members in between, and the second end plate is secured to the interval keeping members by engaging the male screws via the openings for male screws provided in the second end plate with the female screws and tightening the second end plate against the plurality of interval keeping members.

REFERENCES:
patent: 5061370 (1991-10-01), Ferland et al.
patent: 5071543 (1991-12-01), Rajala
patent: 5221437 (1993-06-01), Sieron et al.
patent: 5605234 (1997-02-01), Aikawa
patent: 5647128 (1997-07-01), Aikawa
patent: 5791495 (1998-08-01), Gero et al.
patent: 5798025 (1998-08-01), Iwashige
patent: 5799798 (1998-09-01), Chen
patent: 5804075 (1998-09-01), Aikawa

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