Patent ID: 6871679

Claim:
A bag with a flexible wall which delimits a closed chamber of the bag for a store of a substance, said wall having an inner side, wherein a female element with a body through which a bore extends is attached to the inner side of the wall of the bag, which bore extends from an insertion opening for a male element, which is covered in a sealed manner by the wall of the bag, in the vicinity of the wall of the bag, to an opening into the chamber of the bag, the bore also being closed off, at a distance from the insertion opening, by a closure element, in such a manner that a male element can puncture that part of the wall of the bag which covers the insertion opening from the outside, so that the male element then enters the bore of the female element and as the male element is inserted further into the bore—then interacts with the closure element and eliminates the closure of the bore which is provided by the closure element.