Papermaking screen having first and second annular supports with

Details Papermaking screen having first and second annular supports with Papermaking screen having first and second annular supports with

1996-10-31

1998-09-08

Walker, W. L.

Liquid purification or separation

Filter

Supported, shaped or superimposed formed mediums

210499, 162357, 162384, 2989662, 209273, 209395, 209411, B01D 3910, B07B 146

Patent

active

058040757

ABSTRACT:
A papermaking screen of the invention is formed of first and second annular supporting members having a plurality of first and second recesses, and space holding members fixed to the first and second annular supporting members to establish a predetermined distance therebetween. In the invention, one or more elongated member groups having a plurality of elongated members are disposed between the first and second annular supporting members. The elongated members are disposed in the recesses and arranged parallel to each other to form a space between two elongated members situated adjacent to each other. Also, one or more intermediate supporting members may be situated between the first and second annular supporting members. The elongated member group may be situated between the first and second annular supporting members, between the intermediate supporting members, and between the intermediate supporting member and the first or second annular supporting member. The papermaking screen having good performance can be manufactured easily.

REFERENCES:
patent: 3747770 (1973-07-01), Zentis
patent: 4045853 (1977-09-01), White
patent: 4066555 (1978-01-01), Pascale
patent: 4210539 (1980-07-01), Shiban
patent: 5091084 (1992-02-01), Krettek

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