Abstract: A tank capable of containing a liquid has a first volume (21) capable of containing the liquid (22), the first volume (21) having at least one opening (23) initially sealed by a first wall (24) and the first wall (24) being capable of being retracted when a pressure exerted thereon exceeds a specific threshold. The tank further has a second flexible wall (30), sealing said opening (23) in a sealed manner when the first wall (24) is retracted and capable of being deployed, via said opening (23), after the retraction of the first wall (24), in order to provide the liquid with a volume that is greater than the first volume (21).

Abstract: The invention relates to a device for suspending a helicopter tank, the tank comprising a container which possesses a top wall, a bottom wall, and side walls forming a closed volume which is designed to be placed in a compartment of the helicopter, the compartment having at least one partition adjacent to the top portion of the container. The device comprises at least one fastening made of a material that absorbs energy by plastic deformation, which fastening is fixed firstly to the partition of the compartment and secondly to one of said walls of the container so that in the event of a violent shock it limits the displacement and the acceleration of the container relative to the partition of the compartment by plastic deformation of the fastening.

Abstract: A device is disclosed for self-sealing connection between containers having a flexible wall bearing on a rigid (1) or thin (1') partition, through which passes a connecting sleeve (3) having a fold inside the container, which a tractive force separating the containers seals, before breakage of the cylindrical barrel (6), by means of a jamming element (9, 13), after causing the fold (5) to turn back over the orifices of a tube section (10).

Abstract: Pneumatic deicer with multiple inflatable chambers made of rubberized fabric in which all of chambers (10) or of a group of chambers are made of a double rubberized fabric on its outer faces which form two separate layers (14.1-14.2) which are connected along spaced linear areas (15) which are interknit from one layer to the other to delimit the juxtaposed tubular chambers, characterized by the fact that the interknit linear zones are oriented in the longitudinal direction of the tricot and this double tricot is a Jersey tricot with a transverse extensibility rate which is equal to at least twice its longitudinal expandability.

Abstract: A tank installation comprising a tank having at least one flexible wall arranged to rest on a rigid apertured partition, which per se does not form part of the invention. A flexible duct is joined to said wall and is intended to pass through the aperture in the partition. One end of the duct is connected to the flexible wall of the tank by a folded-over portion located inside the tank, and the other end of the duct is arranged for connection to another device that is to be placed in communication with said tank.The other device may be a second tank which also comprises a flexible wall with a flexible duct substantially aligned with said flexible duct of said first tank, and the extremities of said two flexible ducts are joined to a rigid pipe. These two tanks may be adjacent, the flexible duct of said second tank being directed towards the inside of the second tank and the rigid pipe is located within the second tank.