Self-supporting, pleated, spirally wound filter

Details Self-supporting, pleated, spirally wound filter Self-supporting, pleated, spirally wound filter

B - Operations, Transporting

01

D

B01D 27/06 (2006.01) B01D 29/21 (2006.01) B01D 29/35 (2006.01) B01D 63/10 (2006.01) B01D 67/00 (2006.01)

Patent

CA 2173754

A coreless filter (10) comprises a filter element (12), which is a spirally wound loop of material, so that it becomes rigid and forms central passageway (20), is disposed in a housing (14b) and sealed there by endcap (14a). The loop includes a layer of filter material, such as a membrane filter, interposed between two support layers.

Un filtre (10) sans noyau comprend un élément filtrant (12) constitué par une bande d'un matériau enroulé de manière hélicoïdale et sous forme de boucle, de sorte qu'il présente une structure rigide et qu'il définisse un passage central (20). Ce filtre es disposé dans une enveloppe (14b), dans laquelle il est hermétiquement fermé par un chapeau terminal (14a). La boucle comprend une couche d'un matériau filtrant tel qu'un filtre microporeux, disposée entre deux couches support.

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