Abstract

A separating device including a release ring able to slide along a segmented nut, the release ring being configured to move between a first position wherein the segments of the nut are retained around a fastening screw and a second position wherein the segments of the nut are released, said device being characterized in that the release ring is moreover configured to travel a determined distance between the second position and a third position wherein said ring is in contact with a damping element located between said ring and an annular shutter, the release ring not being in contact with the damping element between the second position and the third position.

IPC Classes  ?

• F16B 31/00 - Screwed connections specially modified in view of tensile loadBreak-bolts
• F16B 37/08 - Quickly-detachable nuts, e.g. consisting of two or more partsNuts movable along the bolt after tilting the nut

Abstract

The invention relates to an assembly that is separable by means of pyrotechnic cutting (1), the assembly comprising a structure to be cut (110), a holding element (120) and a detonating cord (130), the assembly (1) being characterized in that the detonating cord (130) has an oblong cross section, the shortest axis of symmetry (a) of which extends between a first elongate surface (131) and a second elongate surface (132) of the detonating cord (130), the detonating cord (130) being arranged in a cavity formed between the structure to be cut (110) and the holding element (120) such that the first elongate surface (131) of the detonating cord (130) is held in contact with the structure to be cut (110) and such that the second elongate surface (132) of the detonating cord (130) is held in contact with the holding element (120).

IPC Classes  ?

• F42B 15/38 - Ring-shaped explosive elements for the separation of rocket parts

Abstract

The invention relates to a system (1) for protecting against a short circuit, comprising a main branch (2) and a secondary branch (3) having a fuse, the system (1) comprising a pyrotechnic actuator (7a) having a gas generator (8a) and a piston movable between an initial position and a final position, said system (1) being configured to occupy the following positions: a passive position; and an active position, characterised in that the secondary branch (3) comprises a movable slide which is rigidly connected to one end of the fuse and is capable of being translated by the piston when the system (1) moves from its passive position to its active position, the system (1) being configured so that the slide causes the fuse to break after the main branch (2) has opened when the system (1) moves from its passive position to its active position.

IPC Classes  ?

• H01H 9/10 - Adaptation for built-in fuses
• H01H 9/32 - Insulating body insertable between contacts
• H01H 39/00 - Switching devices actuated by an explosion produced within the device and initiated by an electric current
• H01H 85/36 - Means for applying mechanical tension to fusible member

Abstract

2)2)) between the second position and a third position, in which the ring (5) is in contact with a damping element (10) present between the ring (5) and an annular closure (3), the release ring (5) not being in contact with the damping element (10) between the second position and the third position.

IPC Classes  ?

• B64G 1/64 - Systems for coupling or separating cosmonautic vehicles or parts thereof, e.g. docking arrangements

Abstract

The invention relates to a device (100) for cutting a tubular structure, which comprises: - a base (110) intended to be secured to the inside of a tubular structure, - a cover (120) secured to the base, - the base and the cover defining between them a blind inner peripheral housing (160), - a pyrotechnic charge (130) extending into the blind inner peripheral housing (160) and having an outer peripheral surface (130a), - a projection part (150) covering all or part of the outer peripheral surface (130a) of the pyrotechnic charge (130), - a pyrotechnic transmission line (140) connected to the pyrotechnic charge (130).

IPC Classes  ?

• F42D 3/00 - Particular applications of blasting techniques
• F42B 1/02 - Shaped or hollow charges

Abstract

b).

IPC Classes  ?

• F42B 1/028 - Shaped or hollow charges characterised by the form of the liner
• C06C 5/04 - Detonating fuses
• C06C 5/08 - Devices for the manufacture of fuses
• F42B 1/02 - Shaped or hollow charges
• F42B 3/08 - Blasting cartridges, i.e. case and explosive with cavities in the charge, e.g. hollow-charge blasting cartridges

Abstract

Extinguishing a fire by pressurizing a tank containing an extinguishing liquid. According to the invention, the tank containing the liquid is provided with an expulsion outlet at a front end, a gas generator (17) is installed at a rear end, and a diaphragm forming an inflatable bag (19) is installed inside the tank, being folded prior to triggering in a confinement space at the front of the gas generator, the outlet from the generator being associated with a deflector (47) including a rearwardly-directed ejection passage (49).

IPC Classes  ?

• A62C 3/07 - Fire prevention, containment or extinguishing specially adapted for particular objects or places in vehicles, e.g. in road vehicles
• A62C 13/22 - Portable extinguishers which are permanently pressurised or pressurised immediately before use with pressure gas produced by chemicals with incendiary substances producing pressure gas
• A62C 3/08 - Fire prevention, containment or extinguishing specially adapted for particular objects or places in vehicles, e.g. in road vehicles in aircraft
• A62C 3/10 - Fire prevention, containment or extinguishing specially adapted for particular objects or places in vehicles, e.g. in road vehicles in ships
• A62C 35/02 - Permanently-installed equipment with containers for delivering the extinguishing substance

Abstract

The invention relates to a method for obtaining linear detonating-shaped charges for cutting (100) and to novel linear detonating-shaped charges for cutting (100) that can be obtained by means of said method. Characteristically, the sheath (101) of said charges (100) is shaped before filling and, once filled, it is only slightly deformed for perfect adaptation to the material contained therein. Ultimately, said sheath (101) has concave (C) outer walls (10a, 10b).

IPC Classes  ?

• C06C 5/04 - Detonating fuses
• C06C 5/08 - Devices for the manufacture of fuses
• F42B 1/036 - Manufacturing processes therefor
• F42B 1/02 - Shaped or hollow charges

Abstract

Extinguishing a fire by pressurization of a reservoir that contains an extinguishing liquid. According to the invention, the reservoir containing the liquid is provided with a discharge outlet at a front end, a gas generator (17) is installed at a rear end, and a membrane forming an inflatable bag (19) is installed in the reservoir by being folded up before release in a confined space at the front of the gas generator, of which the outlet is connected to a deflector (47) that comprises an ejector tube (49) oriented towards the rear.

IPC Classes  ?

• A62C 3/08 - Fire prevention, containment or extinguishing specially adapted for particular objects or places in vehicles, e.g. in road vehicles in aircraft
• A62C 13/22 - Portable extinguishers which are permanently pressurised or pressurised immediately before use with pressure gas produced by chemicals with incendiary substances producing pressure gas
• A62C 35/02 - Permanently-installed equipment with containers for delivering the extinguishing substance

Abstract

Device for rapidly separating two subassemblies, under the action of a pyrotechnic gas generator. The device comprises a segmented nut (17) held by a release sleeve (40) that can move under the action of the gas generator (15); a motive chamber (64) including an end wall of the release sleeve, a damping chamber (66) communicating with a gas expansion chamber (60) and calibrated passages (70) extending between the damping chamber and the motive chamber.

IPC Classes  ?

• B64G 1/64 - Systems for coupling or separating cosmonautic vehicles or parts thereof, e.g. docking arrangements
• F16B 31/00 - Screwed connections specially modified in view of tensile loadBreak-bolts

Abstract

b′) of said gas generator (1) are arranged radially on the wall(s) of said body (2) and said gas generator (1), arranged in such a way that its axis corresponds to the line of travel of said mobile separation member (57), is equipped with a deflector (8) to deflect said generated combustion gases (G) along said line of travel of said mobile separation member (57).

IPC Classes  ?

• F04F 5/00 - Jet pumps, i.e. devices in which fluid flow is induced by pressure drop caused by velocity of another fluid flow
• F04B 23/04 - Combinations of two or more pumps

Abstract

The subject matter of the present invention relates to a device (50) for propelling a liquid (L), comprising a reservoir (51) provided with a mobile separation member (57) and a pyrotechnic gas generator (1) arranged inside said reservoir (51), provided with nozzles (4a, 4b, 4a', 4b'). Characteristically, said nozzles (4a, 4b, 4a1, 4b') of said gas generator (1) are radially arranged on the wall or walls of said body (2) and said gas generator (1), arranged in such a way that the axis thereof coincides with the axis of movement of said mobile separation member (57), is provided with a baffle (8) for diverting said generated combustion gases (G) along said axis of movement of said mobile separation member (57).

IPC Classes  ?

• F42B 3/04 - Blasting cartridges, i.e. case and explosive for producing gas under pressure

Goods & Services

Machines et machines-outils; moteurs (à l'exception des moteurs pour véhicules terrestres), notamment actionneurs et vérins. Vannes et obturateurs; sectionneurs de câble et/ou barre; découpeurs de structure; appareils et instruments scientifiques, nautiques, géodésiques; appareils et instruments pour la conduite, le réglage ou la commande du courant électrique; dispositifs électriques d'allumage, coupe-circuit, dispositif antiparasites, appareils électriques de commutation; appareils de signalisation, appareils extincteurs, notamment contacteurs électriques, appareils de relevage sous-marin, appareils de gonflage, détecteurs de rayonnement. Armes à feu, munitions et projectiles; substances explosives; amorces, détonateurs, percuteurs, initiateurs et impulseurs; boîtier de sécurité; cordeaux de transmission pyrotechniques et cordeaux déflagrants; boulons et écrous explosifs; découpeurs pyrotechniques; feux d'artifice; charges pyrotechniques, engins pyrotechniques et éléments d'engins pyrotechniques.

Goods & Services

Armes à feu; munitions et projectiles; substances explosives; feux d'artifices et, notamment, éléments de transmission de signal pyrothechnique.