Disposable capsules for preparing a beverage in a beverage preparation machine and a system for preparing beverage from said disposable capsules

摘要

The present invention relates to a disposable capsule (1) for preparing a beverage in a beverage preparation machine, the disposable capsule (1) comprising a base element (2) having a cavity (3) for receiving beverage ingredients and a cavity (3) It comprises a sealing capsule cover (4), the base element (2) comprising a capsule base (5), a peripheral flange (6) and a capsule wall (7) extending between the capsule base (5) and the peripheral flange (6) and the capsule cover 4 is attached to the flange 6 along the sealing plane 8 , the flange 6 having a peripheral bulge 9 at its outer free end and facing away from the capsule cover 4 . A sealing element in the form of a facing sealing bead 10 is provided on the flange 6 , the sealing plane 8 being along the flange 6 on the side of the capsule cover 4 between the bulge 9 and the sealing bead 10 . Extending, the sealing bead 10 comprises an inner flank 11 on the side of the capsule wall 7 and an outer flank 12 on the side of the bulge 9, wherein the outer flank 12 is substantially with respect to the sealing plane. It is characterized in that it is oriented at a right angle α and the inner flank 11 is oriented at an angle β of more than 80 degrees and less than 90 degrees with respect to the sealing plane 8 .