Abstract: A flexible container (1) for holding a liquid including two walls (10, 11) made of a flexible material, the free overlaying edges of said walls being assembled together by a weld or an adhesive seam (12), so as to define an inner sealed volume of said container, the two said walls also defining a spout (13) designed to protrude outwards from a peripheral portion of the container, and an outflow channel (130) connecting said spout with said inner volume of said container, characterized in that one or several obstacles (14, 14?) formed by welding or bonding together the two walls is or are located in said inner volume substantially opposite and in the vicinity of the channel (130) leading to the spout (13) in such a manner as to limit the section of the passage available for the liquid between the inner volume and the outflow channel, while leaving open at least one narrowed passage (140, 141, 146) and in such a manner that a portion of the surface including the spout is deflected, this portion of the surface b

Abstract: A flexible container for holding a liquid includes two walls made of a flexible material, the free overlaying edges of the walls being assembled together by a weld or an adhesive seam so as to define an inner sealed volume of the container. The two walls also define a spout designed to protrude outwards from a peripheral portion of the container, and an outflow channel connects the spout with the inner volume of the container. One or several obstacles are formed by welding or bonding together the two walls in the inner volume, substantially opposite from and in the vicinity of, the channel leading to the spout in such a manner as to limit the section of the passage available for the liquid between the inner volume and the outflow channel. One narrowed passage is left open in such a manner that a portion of the surface including the spout is deflected. This portion of the surface is substantially defined by the obstacle(s) and by folds directed substantially transverse with respect to the obstacles.

Abstract: A flexible receptacle for liquid, comprising two walls (15,16) of a flexible material, the superimposed free borders of the said walls being joined by a peripheral weld seam (2) in order to define a sealed internal volume of the said receptacle, a self-sealing pouring nozzle (3) in a corner of said receptacle comprising a spout (4) located towards the outside of the said receptacle, an outlet channel (5) connecting the spout to the internal volume of the said receptacle, a self-closing valve comprising one or more obstacles (6) formed by welding of the two walls and arranged in the said internal volume essentially opposite and close to the channel leading to the spout so as to limit the cross-section of the flow-passage of the liquid between the internal volume and the outlet channel, leaving free at least one narrow channel, wherein the outlet channel is formed by a weld either side of the channel within the volume defined by the peripheral seam, said peripheral seam has a parallelogram shape having an acute

Abstract: A flexible container (1) for holding a liquid including two walls (10, 11) made of a flexible material, the free overlaying edges of said walls being assembled together by a weld or an adhesive seam (12), so as to define an inner sealed volume of said container, the two said walls also defining a spout (13) designed to protrude outwards from a peripheral portion of the container, and an outflow channel (130) connecting said spout with said inner volume of said container, characterised in that one or several obstacles (14, 14?) formed by welding or bonding together the two walls is or are located in said inner volume substantially opposite and in the vicinity of the channel (130) leading to the spout (13) in such a manner as to limit the section of the passage available for the liquid between the inner volume and the outflow channel, while leaving open at least one narrowed passage (140, 141, 146) and in such a manner that a portion of the surface including the spout is deflected, this portion of the surface b

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