A filter cartridge

B - Operations – Transporting – 01 – D

Patent

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Details

B01D 27/08 (2006.01) B01D 27/06 (2006.01) B01D 29/07 (2006.01)

Patent

CA 2452010

A filter cartridge (10), in this case comprising an injection moulded cylindrical plastics body (11) having spaced anti-tracking ribs (12) which are disposed unevenly along the inner surface (13) of the hollow body (11). First and second paper rolls as filter elements (14 and 15) have been pushed under compression into the hollow body (11) and are separated by spacer means (16) located centrally within the hollow body (11). Spacer means (16) is made from two separate spacers (18) which are generally made in the form of a spoked wheel type arrangement. Each spacer (18) comprises an outer ring (19) and an inner ring (20), the inner ring (20) has four apertures or recesses (21) on its top and offset by 45 degrees equally on its opposite side are four more equally spaced apertures (21) making a total of eight, the apertures provide flow through passages (21) through the inner ring (20), plastic connector portions (22) extend radially between the rings (19 and 20).

Cette invention concerne une cartouche filtrante (10) comprenant une corps cylindrique (11) en plastique moulé par injection doté de nervures (12) séparées distantes les unes des autres et disposées de manière non régulière le long de la surface intérieure (13) du corps (11). Des premier et des second rouleaux de papier (14 et 15) tenant lieu d'éléments filtrants sont introduits à force dans le corps creux (11) et sont séparés par un système intercalaire (16) disposé centralement dans ledit corps creux (11). Ce système intercalaire (16) est constitué par deux entretoises distinctes (18) se présentant généralement sous la forme d'une roue à rayons. Chaque entretoise (18) comprend un cercle extérieur (19) et un cercle intérieur (20), lequel cercle intérieur (20) comporte quatre ouvertures ou renfoncements (21) à sa partie supérieure et, décalées de 45· sur le côté opposé, quatre ouvertures (21) supplémentaires équidistantes (soit un total de huit ouvertures). Ces ouvertures constituent des passages (21) qui traversent le cercle intérieur (20). Des éléments de liaison (22) en plastique sont disposés radialement entre les cercles (19) et (20).

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