Patent ID: 7232042

Claim:
A plastic spout which is adapted to be sealed between two foil walls of a pouch, comprising a spout body which forms a passage for delivering a medium from the pouch and feeding a medium to the pouch, which spout body, in a bottom part thereof, on opposite sides forms a sealing zone for a sealed connection to an adjoining foil wall, the sealing zones of the spout body being formed by sealing walls which project downwards from the spout body, each sealing wall having outermost ends and a length, the sealing wall ends adjoining one another and between them delimiting an oval space, wherein the sealing walls each have a curvature over their entire length, such that each sealing wall is outwardly convex over its entire length with respect to an imaginary plane passing through the outermost ends, which adjoin one another, of the sealing walls, wherein the spout body comprises a transverse wall, which extends transversely with respect to the sealing walls, and in which the passage extends through the transverse wall, and in which the transverse wall is provided with one or more corrugations transversely with respect to the plane of the transverse wall, which impart flexibility to the transverse wall, in such a manner that the transverse wall allows the flexible movement of the sealing walls.