Cone shaped filter insert made of filter paper (3-zones)

A - Human Necessities – 47 – J

Patent

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A47J 31/08 (2006.01)

Patent

CA 2645519

A filter paper insert for a brewed beverage includes a filter paper shaped to form a cone-shaped filter having a side wall, a closed bottom and an upper filling opening. The side wall has three parallel, circumferential zones of increasing permeability in a direction from the closed bottom to the upper filling opening.

Une garniture de papier-filtre pour boisson infusée comprend un papier-filtre façonné pour former un filtre en forme de cône pourvu d'une paroi latérale, un fond fermé et un orifice de remplissage par le haut. La paroi latérale comporte trois zones annulaires parallèles de perméabilité croissante, du fond fermé à l'orifice de remplissage par le haut.

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