Abstract: A device is presented including a first support element, a second support element (110) which is separate from the first support element, a structure placed in tension between the two support elements and a rupture device associated with the structure in tension so as to rupture the structure in tension on demand. The device additionally includes a beam working in compression, inserted between the two support elements in parallel with the structure to be ruptured.

Abstract: The invention concerns an igniter plug for a pyrotechnic device, in particular a hand-launch or mechanical launch grenade, comprising a body (104) provided with a control mechanism including a fly-off lever (101) and a percussion mechanism (128) co-operating with a primary pyrotechnic module (105) for initiating the charge (119) of the associated device. The invention is characterised in that it further comprises a lock (150) engaged with the lever (101), in storage position, to prevent the fly-off lever (101) from moving towards its release position, the lock (150) being configured to impose, when the igniter plug is activated, an initial movement of the lever (101) countering its displacement required for releasing the percussion mechanism (128), so as to disengage the lock (150) and the fly-off lever (101).

Abstract: The invention concerns an igniter plug for a pyrotechnic device, in particular a hand-launch or mechanical launch grenade, comprising a body (104) provided with a control mechanism including a fly-off lever (101) and a percussion mechanism (128) co-operating with a primary pyrotechnic module (105) for initiating the charge (119) of the associated device. The invention is characterised in that it further comprises a lock (150) engaged with the lever (101), in storage position, to prevent the fly-off lever (101) from moving towards its release position, the lock (150) being configured to impose, when the igniter plug is activated, an initial movement of the lever (101) countering its displacement required for releasing the percussion mechanism (128), so as to disengage the lock (150) and the fly-off lever (101).

Abstract: The present invention relates to a non-lethal projectile. The projectile (1) comprises a longitudinal body (5) having internally a longitudinal striker (55) suitable for perforating a container (47) of fluid under pressure in controlled manner, in particular by impact of the projectile (1) on a target. The striker (55) has an internal passage (59) opening to the outside of the body (5) via channels (60) made through a rigid wall (35) secured to the body (5) such that the outlet offered to the fluid under pressure remains disengaged even if the impact is accompanied by the deformation of the container (47). The fluid contained in the container (47) can thus escape and spread over the target even in such a case.

Abstract: The present invention relates to a projectile propulsion assembly of the type comprising a chamber housing a pressure source. The chamber which houses the pressure source communicates with at least one pipe placed inside the launch tube and having bores distributed along its length so as to be released in succession during ejection of the projectile.