CARTRIDGE FOR PREPARING A LIQUID PRODUCT, AND PROCESS FOR PRODUCTION THEREOF

摘要

A cartridge (10) containing a dose (12) of at least one substance for preparing a liquid product, e.g., coffee, by means of liquid and/or vapour introduced into the cartridge (10). The cartridge comprises a casing (14) containing the aforesaid dose (12) with a bottom wall (142) through which the liquid product may flow out of the cartridge (10). The bottom wall (142) has, as viewed from outside the cartridge (10): —a central portion (1420); —a first annular cavity (1422) that surrounds the central portion (1420); —an intermediate annular portion (1424) that surrounds the first annular cavity (1422) and is separated from the latter by a first annular rib (1423); and —a second annular cavity (1426) that surrounds the intermediate annular portion (1424) and is separated from the latter by a second annular rib (1425). The bottom wall (142) has openings (1428) for exit of the liquid product from the cartridge (10), which are localized, for example, in at least one from between, and preferably in both, the aforesaid central portion (1420) and the aforesaid intermediate portion (1424).

主权项

1. A cartridge (10) with a filling (12) of at least one substance for preparing a liquid product by means of liquid and/or steam introduced into the cartridge (10), the cartridge including a casing (14) containing said filling (12) with a bottom wall (142) for said liquid product to flow from the cartridge (10),
wherein said bottom wall (142) presents, when observed on the outer side with respect to the cartridge (10):
a central portion (1420),a first annular cavity (1422) that surrounds the central portion (1420),an intermediate annular portion (1424) that surrounds the first annular cavity (1422) and is separated therefrom by a first annular rib (1423),a second annular cavity (1426) that surrounds the intermediate annular portion (1424) and is separated therefrom by a second annular rib (1425), and wherein said bottom wall (142) has outflow openings (1428) for said liquid product from the cartridge (10).