CARTRIDGES, SYSTEMS AND METHODS FOR PREPARATION OF BEVERAGES Russian patent published in 2017 - IPC B65D85/804 

FIELD: polygraphy.

SUBSTANCE: cartridge containing cup-shaped housing, having base, peripheral sidewall and open upper part with cover, attached to cup-shaped housing with formation of container volume. Cover can be punctured to provide water medium influx into container volume. Filter is located inside container volume for separation of container volume into ingredients compartment, containing one or more beverage ingredients, and volume of filtrate. Base can be punctured to allow fluid outflow from container volume. Peripheral side wall comprises plurality of grooves, forming plurality of filtrate channels made with possibility to direct beverage flow downwards.

EFFECT: cup-shaped housing is made with possibility of expansion in transverse direction, when aqueous medium is supplied into container volume at temperature of, at least, 85 °C and under pressure of, at least, 20 kPa.

19 cl, 1 tbl, 11 dwg