Abstract: A less lethal weapon projectile having an overall cylindrical shape and including a front end (4) shaped as an at least approximately spherical cap and a rear end (2) includes: a core (6) made from aluminium foam, having an overall cylindrical shape and including a front end (16) and a rear end (13) with a rear face (14), the front end (16) shaped as an at least substantially spherical cap; a base (5) assembled with the rear end (13) of the core (6) and including a front wall (9), arranged transversely and covering the rear face (14) of the core (6); and an outer case (7) covering at least the front end (16) of the core (6). The center of gravity and the center of thrust correspond perfectly, so that the projectile has good external ballistics.

Abstract: Safety equipment for use with prestressing cables as used in civil engineering and building structures, the safety equipment having two principle parts adapted to fit over a cable at a point where the cable interfaces with anchoring members or walls, the safety equipment configured to take over from original anchoring elements in the event of a rupture of the cable.

Abstract: A method includes providing installation of safety equipment on the cable which takes over from original anchoring elements of the cable, in case the latter breaks. The safety equipment consists of a component (11) serving as hammer in the form of two half-shells, fixed on the cable (7), and a damping device (12) subject of the patent application FR-02 05105, in the form of a U-shaped or ohm-shaped gutter, which encloses the cable (7) and whereof the deformability corresponds to the variation in the length of the cable when its tension is released after breaking.

Abstract: The invention concerns impact-absorber devices, an impact-absorption method, and a framework and a vehicle including such impact-absorber devices. According to the invention, the impact-absorber device comprises at least one longitudinal member absorbing by deformation the energy generated by an impact in a given direction, which member is made from thin plate, having a generally triangular cross-section in a plane perpendicular to the direction of impact. Applications to rail vehicles, for example.

Abstract: The invention concerns impact-absorber devices, an impact-absorption method, and a framework and a vehicle including such impact-absorber devices. According to the invention, the impact-absorber device comprises at least one longitudinal member absorbing by deformation the energy generated by an impact in a given direction, which member is made from thin plate, having a generally triangular cross-section in a plane perpendicular to the direction of impact. Applications to rail vehicles, for example.

Abstract: The invention concerns impact-absorber devices, an impact-absorption method, and a framework and a vehicle including such impact-absorber devices. According to the invention, the impact-absorber device comprises at least one longitudinal member absorbing by deformation the energy generated by an impact in a given direction, which member is made from thin plate, having a generally triangular cross-section in a plane perpendicular to the direction of impact. Applications to rail vehicles, for example.

Abstract: The invention concerns an impact-absorber device comprising at least one mechanical member absorbing by deformation the energy generated by an impact in a given direction, wherein said member is made from thin plate, having a cross-section in a plane perpendicular to the direction of impact in the shape of at least two triangles each having a common vertex. Applications to rail vehicles, for example.