Abstract: The stiffeners of a composite material panel may be protected by a structural section having a configuration absorbing edge impacts without propagation of impact energy to the protected structure. Each composite panel with protected parallel stiffeners has a multiply front face coming to an edge and extending between two lateral flanks of outside plies, symmetrically relative to a median plane (Pm). A device for protecting each stiffener includes a structural section that caps the stiffener symmetrically relative to this median plane (Pm). This structural section consists of an upper section formed above the edge and configured to envelop a space above the edge, a lower section framing the lateral flanks by longitudinal walls (Pi) fastened to these flanks, and an intermediate section bearing at least partially on the edge via transverse walls (Pb) so as to minimize the propagation of impact forces to the lower section.

Abstract: The invention concerns a motor vehicle air duct also serving as crosspiece forming part of the structure of the vehicle. The invention is characterised in that the duct comprises two half-shells (2, 12) including each a tubular portion (6, 16) and two lateral flanks (4a, 4b; 14a, 14b); it further comprises: two stop elements (22a, 22b) defining each a rib projecting relative to one of the contact surfaces of one of the half-shells and having a stop surface arranged immediately proximate to an abutting surface (40a, 40b) provided on the other half-shell (12), a continuous weld bead (13a, 13b) extending between the contact surfaces of the half-shells which are in contact with each other.

Abstract: The invention concerns a motor vehicle air duct also serving as crosspiece forming part of the structure of the vehicle. The invention is characterised in that the duct comprises two half-shells (2, 12) including each a tubular portion (6, 16) and two lateral flanks (4a, 4b; 14a, 14b); it further comprises: two stop elements (22a, 22b) defining each a rib projecting relative to one of the contact surfaces of one of the half-shells and having a stop surface arranged immediately proximate to an abutting surface (40a, 40b) provided on the other half-shell (12), a continuous weld bead (13a, 13b) extending between the contact surfaces of the half-shells which are in contact with each other.

Abstract: Device for protecting the lower limbs of an occupant of a motor vehicle, the device comprising an energy absorbing structure having two energy absorbing elements which elements become deformed substantially according to the principal direction of application of the force and cooperating with one front support element which extends transversely to the principal direction of application of the force, the front support element having, or cooperating with, a bulge which is convex towards the occupant, at least in the absence of exerted force, the bulge being located between the two energy absorbing elements, in order to cause the occupant's lower limbs to have a minimum distance between them when the energy absorbing structure becomes deformed.

Abstract: Device for absorbing energy during impact, comprising a plurality of hollow impact-absorbing elements having a first base, a side surface and an end base, each absorbing element having a crushing resistance in the direction of a working axis. According to the invention, the device comprises two base plates which face one another, the side surfaces of a portion of the plurality of hollow impact-absorbing elements rising from each plate in the direction of the working axis, and the side surfaces of the impact-absorbing elements of one base plate rising in a direction opposite that of the side surfaces of the impact-absorbing elements of the other base plate.

Abstract: Device for absorbing energy during impact, comprising a plurality of hollow impact-absorbing elements having a first base, a side surface and an end base, each absorbing element having a crushing resistance in the direction of a working axis. According to the invention, the device comprises two base plates which face one another, the side surfaces of a portion of the plurality of hollow impact-absorbing elements rising from each plate in the direction of the working axis, and the side surfaces of the impact-absorbing elements of one base plate rising in a direction opposite that of the side surfaces of the impact-absorbing elements of the other base plate.

Abstract: This invention relates to stabilized nanoparticles which may be filtered under sterile conditions, comprising at least one hydrophobic, water-insoluble and non-water-dispersible polymer or copolymer (and optionally an active principle) which is emulsified in an aqueous solution or suspension comprising a phospholipid and a bile salt.