Abstract: The container is used for receiving liquids and is formed substantially from a thermoplastic material. A container wall is provided at least in certain regions with a rib-like structure. The container wall has an oval profile in a horizontal cross-sectional area. The container is provided with two mutually opposite curved longitudinal sides and two mutually opposite curved transverse sides. In the region of at least one of the longitudinal sides, the rib-like structure is configured in such a way that it has, at least in certain regions, a reinforcing rib of closed encircling shape.

Abstract: The injection moulding machine has a plasticizing cylinder, arranged in whose interior there is a worm with an axial through-hole. The interior of the plasticizing cylinder is connected to a nozzle opening via a cylinder chamber. Operating in the cylinder chamber is a needle which extends through the through-hole in the worm and has a smaller diameter than the cylinder chamber. The tip of the worm constitutes, together with a correspondingly shaped sealing seat, a reverse flow barrier during the injection process. After the end of the injection process the worm is rotated and conveys plasticized plastic material in the direction towards the nozzle opening. As a result of the rising pressure in the worm threads the worm is pushed back and the plasticized material can penetrate into the annular space between the needle and the cylinder chamber. When the worm is rotated further, a pressure is also created in the annular space which slides the needle back into its starting position.