Patent ID: 7422125

Claim:
A method of opening a package, comprising: providing a first foil having a plane upper side, the first foil having at least one cavity defined therein by a bulge segment of the first foil so that the first foil surrounds the cavity, the package having a lid of a second foil attached to the upper side, wherein every lid has a separate flap where each flap consists of the first foil and the second foil attached to each other and wherein in the first foil there is a straight cut defined therein which separates the flap from a remaining part of the first foil, the cut being disposed outside the cavity and remote from the bulge segment, the cut being on the upper side of the first foil, the cut not going entirely through the first foil, the second foil not being attached to the first foil close to the cut, bending the flap in a first direction to widen the cut until the cut has penetrated the first foil, while bending the flap in the first direction, stretching the second foil across the widened cut without breaking the second foil, bending the flap in a second direction that is opposite the first direction, breaking the first foil at the cut, separating the flap from the first foil in an area disposed between the cut and the bulge segment, pulling the flap across the bulge segment to open the bulge segment.