Abstract: A protection system comprises at least one inflatable safety structure, each associated with a gas generator that can be activated by an external command, wherein the external command comprises an electrical signal from an automated system that is responsible for the critical safety functions of a vehicle, corresponding to predictive information about an impact. The gas generator is configured to generate a gas over a time period such that the total inflation time of the inflatable structure is greater than 50 milliseconds. The inflatable structure may be waterproof.

Abstract: A protection system comprises at least one inflatable safety structure, each associated with a gas generator that can be activated by an external command, wherein the external command comprises an electrical signal from an automated system that is responsible for the critical safety functions of a vehicle, corresponding to predictive information about an impact. The gas generator is configured to generate a gas over a time period such that the total inflation time of the inflatable structure is greater than 50 milliseconds. The inflatable structure may be waterproof.

Abstract: A gas generator for a safety system includes an explosible charge formed at least by a primary pyrotechnic compound, in a first chamber initiated by at least one initiator provided with a reinforcing charge and a secondary compound, in a second chamber, the decomposition of which is entailed by products of combustion of the primary compound, an interaction of the products of combustion of the primary compound and those of the secondary compound through an oxidation-reduction reaction occurring in a slightly confined volume, the first chamber communicating with said second chamber through a central nozzle and said second chamber being provided, at a first zone close to said first chamber, with orifices that discharge the gases and contain, in a second zone, said secondary compound; and means forming an obstacle to the passage of the gases installed in said second chamber between said first and second zones, said obstacle-forming means allowing the gases to pass into a central part and forming an obstacle to th

Abstract: A device for deploying an element including a detonatable charge formed from at least one primary pyrotechnic compound; at least one initiator equipped with a reinforcing charge to initiate decomposition of the primary pyrotechnic compound(s); a secondary compound having a decomposition rate less than the decomposition rate of the primary pyrotechnic compound(s) such that the primary pyrotechnic compound(s) control(s) decomposition of the secondary compound(s) after initialization of decomposition; and at least one unconfined or weakly confined interaction chamber wherein the primary pyrotechnic compound(s) enable(s) at least one interaction of combustion products of the reducing primary compound(s) and oxidizing secondary compound(s) by oxidoreduction reaction.

Abstract: A device for protecting goods and/or persons including a security element; and a gas generating system connected to the security element and including an explosive charge formed at least of: a primary pyrotechnic compound, in a first chamber, initiated by at least one initiator having a reinforcing charge and including at least one propellant having an optionally adjusted oxygen balance, and a secondary compound, in a secondary chamber, including an oxidant constituent capable of delivering only gas by decomposition and at least one reducing additive having a function of contributing nitrogen, the additive being present in a proportion by weight less than about 70% of the weight of the primary-secondary compound.

Abstract: A gas generator for a safety system includes an explosible charge formed at least by a primary pyrotechnic compound, in a first chamber initiated by at least one initiator provided with a reinforcing charge and a secondary compound, in a second chamber, the decomposition of which is entailed by products of combustion of the primary compound, an interaction of the products of combustion of the primary compound and those of the secondary compound through an oxidation-reduction reaction occurring in a slightly confined volume, the first chamber communicating with said second chamber through a central nozzle and said second chamber being provided, at a first zone close to said first chamber, with orifices that discharge the gases and contain, in a second zone, said secondary compound; and means forming an obstacle to the passage of the gases installed in said second chamber between said first and second zones, said obstacle-forming means allowing the gases to pass into a central part and forming an obstacle to th

Abstract: A device for protecting goods and/or persons including a security element; and a gas generating system connected to the security element and including an explosive charge formed at least of: a primary pyrotechnic compound, in a first chamber, initiated by at least one initiator having a reinforcing charge and including at least one propellant having an optionally adjusted oxygen balance, and a secondary compound, in a secondary chamber, including an oxidant constituent capable of delivering only gas by decomposition and at least one reducing additive having a function of contributing nitrogen, the additive being present in a proportion by weight less than about 70% of the weight of the primary-secondary compound.

Abstract: A device for deploying an element including a detonatable charge formed from at least one primary pyrotechnic compound; at least one initiator equipped with a reinforcing charge to initiate decomposition of the primary pyrotechnic compound(s); a secondary compound having a decomposition rate less than the decomposition rate of the primary pyrotechnic compound(s) such that the primary pyrotechnic compound(s) control(s) decomposition of the secondary compound(s) after initialization of decomposition; and at least one unconfined or weakly confined interaction chamber wherein the primary pyrotechnic compound(s) enable(s) at least one interaction of combustion products of the reducing primary compound(s) and oxidizing secondary compound(s) by oxidoreduction reaction.

Abstract: A method of manufacturing a cold-gas pyrotechnic generator of the type having a casing including a base and a cover with an internal chamber accessed by a central opening for the reception of pyrotechnic elements includes the steps of placing the cover on the base with filtering material inserted, rotating the casing while introducing the pyrotechnic elements through the central opening and then inserting an ignition device in the central opening.

Abstract: A device for protecting, by impact absorption, the occupants of a motor vehicle in the event of a collision includes a pyrotechnic generator (2) of hot gases, the temperature of which at the outlet of the generator is equal to at least 1,800.degree. C. and a sealed or virtually sealed inflatable bag (3) fastened to the said generator. Communication between the bag (3) and the generator (2) is ensured by openings (27) with a constant cross-section arranged on the generator and by a deflector (28). The invention also relates to the use of a device of this type combined with a seat belt, in particular in order to improve the protection of motor vehicle drivers.

Abstract: The invention relates to a cold-gas pyrotechnic generator, in particular intended for automobile safety, as well as a method for manufacturing this generator.The generator according to the invention comprises a casing (2) of revolution consisting of a base (10) and a cover (20) establishing:a central channel (80) in which an ignition device is placed,an annular intermediate chamber (70) containing elements (40) of a gas-generating pyrotechnic composition,a peripheral annular chamber (60) containing a filter.A continuous lateral opening (71) is provided between the central channel (80) and the intermediate chamber (70).The method for manufacturing a generator of this type consists in assembling the cover (20) with the base (10) containing the filter by friction welding, in placing the casing (2) thus formed onto a lathe and in introducing, after setting in rotation, the pyrotechnic elements (40) into the chamber (70) through the opening (71) and, lastly, in installing the ignition device.