Patent ID: 11987415

Abstract:
A filling and/or emptying apparatus (I) for filling and/or emptying flexible containers (5) having a filling and/or emptying neck (2) with an open end portion and at least one deformable disposable fastening ring (9), wherein the ring (9) is designed in relation to the internal diameter of the neck (2) such that once a container edge (7) is folded over around the ring, it is possible to insert the ring (9) in an end portion of the neck (2) so that the ring (9) is arranged substantially concentrically with the neck (2), and a radially outer fold-over portion (8) of the container edge (7) is arranged and/or clamped between an inner surface of the neck (2) and a radially outer surface. It is possible to press the ring (9) into a sealing portion (15) of the neck (2), which is arranged after the end portion in the axial direction (A) and has a smaller internal diameter than the end portion. The ring (9) undergoes deformation in the radial direction, so that the insertion and/or pressing into the interior of the neck (2) leads to a radial deformation and a counterposed pressure force which presses the outer fold-over portion (8) of the container edge (7) against the inner surface of the neck (2), thereby sealing the container (5) against the neck (2).