Abstract: A tubular element for drawing liquid from a container is shown including a first end designed to be connected to a source of vacuum and a second end designed to be immersed in the liquid to be drawn. The tubular element is designed to pass through an orifice or an inlet conduit, made from an elastically extendable materia. The cross section of the tubular element is sized to be contiguous with the edge of the orifice or with the wall of the conduit. The tubular element also includes an annular bulge with a truncated cone shaped surface which includes a small base, which is directed towards the second end and has a diameter substantially equal to the external diameter of the said tubular element and which also includes a large base which with the external surface of the tubular element, defines a bearing surface and serves as an end stop with the conduit wall or the aperture of said container.

Abstract: This leaktight container includes four superimposed sheets (1, 2, 3, 4). The sheet (1) includes a precut tab (5) welded (13) to a portion of the sheet (2). A passage (10) is formed between these sheets (2) and (3) and acts as a valve between the inside and the outside of the leaktight container formed between the sheets (1, 4). A cut (9a) in the sheets (2, 3) allows the passage (10) to be placed in communication with the inside of the container formed between the sheets (1, 4). By pulling the tab (5) the wall of the passage (10) formed by the sheet (2) is torn and this passage is placed in communication with the outside.

Abstract: Inflatable packaging including a valve formed by a channel made between two flexible sheets extending at least partly inside the inflatable packaging and having a first opening communicating to outside of the packaging and a second opening communicating to inside of the packaging, the two flexible sheets being designed to be pressed against each other as soon as a force keeping the flexible sheets apart is removed, thus preventing an inflating gas from escaping from the packaging, wherein the two flexible sheets extend between two edges of the packaging and the first opening coincides with a second opening passing through one wall of the packaging, the edges of the first opening and the second opening being welded to each other and, upstream of the first opening, the two flexible sheets are welded to a body of a tab cut into the one wall of the packaging, wherein the tab includes one tab end by which the tab may be grasped which is free with respect to the two flexible sheets, and the tab is isolated from an