Abstract: A collapsible securing system for securing medical oxygen cylinders for passenger seats including: (i) a base configured such as to be positioned on the passenger seat; (ii) an intermediate securing structure for oxygen cylinders connected to the base by three legs; (iii) a gripping structure, connected to the intermediate securing structure by at least one pivot in common with the intermediate securing structure, and (iv) a fitting system comprising the seatbelt and two straps secured from one end the gripping structure and from the other end thereof to the fitting of the seatbelt to the passenger seat.

Abstract: An apparatus for hoisting and positioning a load in a self-balanced manner regardless of the position of its center of gravity. The apparatus comprises an upper platform adapted for being hoisted from a general hoisting point, a lower platform adapted the attachment of a load to be hoisted and positioned, and a six degrees of freedom actuator comprising six variable length tendons, adapted for moving the lower frame with respect the upper frame in the three directions of the space and tilted around the three axis of the space. A configurable counterweight system supported by the upper platform is arranged for modifying the center of mass of the apparatus over a horizontal plane, and processing means are configured for dynamically calculating a desired position of the counterweight system, for balancing the apparatus with the respect to a general hoisting point.

Abstract: A washer is designed to establish a reliable electrical connection between the washer and a core structure of the main conductor aircraft structure. The washer includes a conductive central main body arranged substantially in a first plane and including an opening adapted to receive a fastener and an outer edge and at least three serrated conductive projections. Each serrated projection includes a first end and a second end. The first end is attached to the conductive central main body and the second end is a free end including at least one conductive tooth. The second end is located in a second plan other than the first plane and is of the type that can deform under pressure. The attachment between the conductive central main body and each serrated conductive projection is of the type that can deform under pressure.