Patent attributes
The present invention concerns a coupling arrangement for coupling a withdrawal arrangement (4) to a package (1) with liquid or essentially liquid contents (3), which withdrawal arrangement (4) is intended for the removal of the contents (3) from the package (1). The coupling arrangement (5) comprises not only an inner coupling device (9) that is arranged within the package (1) but also an outer coupling device (12) that is arranged on the withdrawal arrangement (4). The outer coupling device (12) comprises a tube section (14) with which the unbroken part (11) of the wall of the package (1) can be broken and that can be introduced into the hole (15) in the outer part (10) of the inner coupling device (9) in order to be coupled to this such that the contents (3) in the package (1) can be withdrawn through the tube section (14). At least one protruding part (16) is arranged on the outer coupling device (12). At least one space (17) is arranged in the outer part (10) of the inner coupling device (9). The protruding part (16) can be introduced into the said space (17) without breaking the unbroken part (11) of the wall (2).
