Self-supporting pleated filter media

Details Self-supporting pleated filter media Self-supporting pleated filter media

B - Operations, Transporting

01

D

B01D 46/52 (2006.01)

Patent

CA 2573069

The present invention is a filter that includes a length of filter media (42) and a continuous, substantially nonlinear adhesive strand (32). The filter media has a front face and a rear face. The filter media has a plurality of pleats (24) defined by a plurality of fold lines, each fold line being intermediate oppositely sloping first and second wall surfaces. The plurality of fold lines comprise a first plurality of pleat tips (34) and a second plurality of pleat valleys (46). The adhesive strand is provided on the front face of the filter media in discontinuous contact with the filter media. The adhesive strand contacts the filter media at a pleat tip and contacts the filter media at a portion of a first wall surface and contacts the filter media at a portion of a second wall surface.

La présente invention porte sur un filtre comportant une longueur de supports filtrants (42) et un cordon adhésif continu, sensiblement non linéaire (32). Les supports filtrants possèdent une face avant et une face arrière. Les supports filtrants ont une pluralité de plis (24) définis par une pluralité de lignes de plis, chaque ligne de plis étant située entre une première surface de paroi inclinée et une seconde surface de paroi inclinée opposées. La pluralité de lignes de plis comporte une première pluralité de pointes de plis (34) et une seconde pluralité de creux de plis (46).Le cordon adhésif est placé sur la face avant des supports filtrants en contact discontinu avec les supports filtrants. Le cordon adhésif touche les supports filtrants en une pointe de pli, en une portion d~une première surface de paroi et en une portion d~une seconde surface de paroi.

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