Abstract: A dispenser for removing a fluid from a container, including a fixed part with a portion for attachment to the container and a generally cylindrical pouring portion, a side fluid outlet, a moveable part and a head portion. A tamper-proof strip defines a first axial position and snap means define a second axial position for the moveable part relative to the fixed part.

Abstract: Composite material for seals of plastic caps, especially of screw caps, ensuring leakproofing against liquids and imperviousness to gases at the same time, characterized in that it comprises, combined in a coherent multilayer structure, at least one middle layer (4) made of a plastic substance with a gas barrier effect, with a high modulus of rigidity, two outer layers (7) arranged on either side of the middle layer and consisting of a plastic substance with a low modulus of rigidity, each of the outer layers having a thickness greater than the thickness of the middle layer, and between the middle layer (4) and each outer layer (7) an intermediate layer (5) made of a substance of the same class as the outer layer, but with a high modulus of rigidity.

Abstract: Leaktight screw cap composed of two cup-shaped shells rendered integral by fitting one into the other, the lowest shell being made from a flexible plastic having a female thread and a sealing device and the outer shell being made from a hard plastic. A disk made from a material having a gas-barrier effect is inserted between the bottoms of the outer shell of the inner shell. This screw cap is especially applicable to beverages and other products that are sensitive to gas exchanges with the outside.

Abstract: Pourer and stopper cap assembly comprising a guarantee strip (23) produced in a single piece with the pourer (1). The guarantee strip (23) extends from the pourer (1) over the entire height of the cap (2) and, at its free upper end, has a turned-in portion (29) which covers the outer upper edge of the cap (2).The invention is used for the packaging of liquids, especially for long-term storage.

Abstract: Stopper device comprising a screw cap (1) made of oxygen-permeable, injection-moulded thermoplastic, whose bottom (2) is covered internally with an oxygen-impervious composite sheet (5) comprising a layer of paper (6) and a layer (8) of PVC and adhering to the bottom by virtue of the fact of the injection of the cap (1) onto the sheet (5), on the paper side, a plastisol seal (9) being cast on the sheet (5), on the PVC side, so as to adhere thereto after gelling.

Abstract: A tamperproof closure has a raised top and a depending tearable guarantee strip. The strip has a tongue extending upward to the level of the upper edge of the top.