EP0404644A1 - Electropyrotechnic device for triggering the functioning of a gas generator - Google Patents
Electropyrotechnic device for triggering the functioning of a gas generator Download PDFInfo
- Publication number
- EP0404644A1 EP0404644A1 EP90401674A EP90401674A EP0404644A1 EP 0404644 A1 EP0404644 A1 EP 0404644A1 EP 90401674 A EP90401674 A EP 90401674A EP 90401674 A EP90401674 A EP 90401674A EP 0404644 A1 EP0404644 A1 EP 0404644A1
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- European Patent Office
- Prior art keywords
- rear bottom
- efi
- ferrule
- housing
- truncated cone
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
- F42D1/04—Arrangements for ignition
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B3/00—Blasting cartridges, i.e. case and explosive
- F42B3/04—Blasting cartridges, i.e. case and explosive for producing gas under pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B3/00—Blasting cartridges, i.e. case and explosive
- F42B3/10—Initiators therefor
- F42B3/12—Bridge initiators
Definitions
- the invention relates to a system implementing an electropyrotechnic device intended to sequentially trigger the operation of a battery of gas generators.
- the subject of the present invention is a system implementing an electropyrotechnic device intended to trigger the operation of a powder generator placed inside a ferrule having a front bottom and a rear bottom, characterized in that: - a downstream chamber containing a secondary receiving explosive called IFOC, capable of detonating under the action of a shock wave to cause flames causing the triggering of the powder generator and produced in a first bore of a bottom closing element rear of the ferrule which has the shape of a truncated cone, nozzles opening into the side wall of the rear bottom; - an upstream cavity containing a secondary donor explosive and produced in a second bore arranged head to tail relative to the first bore and separated from the latter by a barrier watertight which is constituted by a zone of the closing element of the rear bottom of the shell; - a primer with a projected layer called EFI generating, when it is initiated, a detonation in the upstream cavity and positioned opposite the upstream cavity; - A housing covering the rear bottom
- an electropyrotechnic device (E) essentially consists, for its ignition part, of a primer with a projected layer (1), better known under the English terminology of "EFI” ( Exploding Foil Initiator).
- EFI Exploding Foil Initiator
- This generates a detonation in an upstream cavity (Ca) which contains a secondary donor explosive (2).
- a secondary donor explosive (2) When the latter detonates, it generates a shock wave which propagates through a tight barrier (3) towards a downstream chamber (Ch) containing a secondary receiving explosive (4), capable of detonating to cause flames which, in turn , cause combustion of the powder charge (P) of the gas generator (g) concerned.
- the igniter of the gas generator is thus ensured, in accordance with the invention, by means of the combination of an EFI and an IFOC (igniter operating by shock wave).
- Such a combination has the advantage of avoiding the installation in the pyrotechnic chain, as is the case in the known art, of safety means between conventional igniters and pyrotechnic charges. In addition, this avoids the introduction of electrical means inside the gas generators.
- the system described consists of an igniter as described above, capable of ensuring the correct start of combustion, of a double-base propellant charge having a profile and combustion characteristics such that the pressure is maintained at an almost constant value throughout the duration of the combustion.
- a closing pallet (22) is put in place to close the IFOC chamber (ch).
- the powder loading (P) is carried out inside a ferrule (10) whose front bottom (15) is hemispherical and whose rear bottom (16) which carries the nozzles (12, 13), is made integral with the shell (10) by means, for example, of a screw thread (14).
- This rear bottom (16) has the shape of a converging truncated cone, the nozzles (12) and (13) opening into the side wall of this truncated cone.
- the nozzles are two in number, diametrically opposite, but this number is not limiting.
- the closing element (21) of the rear bottom (16) has at the top of the truncated cone two bores arranged head to tail, one delimits the volume of the downstream chamber (Ch) containing the secondary receiving explosive (4), the other the volume of the cavity (Ca) containing the secondary donor explosive (2); a zone of the closing element (21) constitutes the impermeable barrier (3) of the IFOC, a barrier capable of permitting the propagation of the shock wave while having qualities of sufficient mechanical resistance.
- the rear bottom (16) is capped with a waterproof metallized plastic casing (17) whose bottom (18) is also in the form of a truncated cone, complementary to the convergent truncated cone defined above.
- the two ends of these two trunks of cones fit into each other, trapping the cavity (Ca) containing the secondary donor explosive (2).
- the cover (30) of this housing (17) maintains in position the EFI (1) placed on the top of the truncated cone of the housing (17).
- the latter contains the control electronics (not shown) which is supplied through its wall, via filters (31) and sealed crossing means (37), by means of an electrical connection (32) itself connected to a sequencer not shown.
- This housing (17) is placed on a cushion (33) acting as a shock absorber while a set of seals (34) seals at all levels.
- the housing is made for example of metallized plastic and constitutes an ideal housing for the electronic control of the EFl (1).
- FIG 3 illustrates another embodiment of the combination (EFI-IFOC) integrated in the rear bottom (16) nozzle holders.
- EFI-IFOC the combination
- the propellant charge consists of seven powder loaves (P) whose combustion profile is star ( Figure 3). These powder loaves (double-base propellant) are held in place by two metal grids (50) provided with clamping claws (55) and spacing elements (56).
- the electronic control means are compacted as much as possible inside a box itself located inside the general structure of the gas generator.
- the invention applies each time a battery of generators is used, as is the case in the field of ejecting air-to-ground submunitions from a cargo ship.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Air Bags (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
Description
L'invention concerne un système mettant en oeuvre un dispositif électropyrotechnique destiné à déclencher séquentiellement le fonctionnement d'une batterie de générateurs de gaz.The invention relates to a system implementing an electropyrotechnic device intended to sequentially trigger the operation of a battery of gas generators.
Une des applications de ces systèmes se trouve par exemple dans le domaine de l'éjection des sous-munitions air-sol à partir d'un cargo faisant appel à l'utilisation de gaz formés par des générateurs à poudre. Des difficultés apparaissent lorsque le nombre de générateurs de gaz s'accroît, notamment au niveau de la fiabilité, car les précautions nécessaires pour assurer un taux de fiabilité acceptable deviennent alors très coûteuses en coût et en place.One of the applications of these systems is, for example, in the field of ejecting air-ground submunitions from a cargo ship using the use of gases formed by powder generators. Difficulties appear when the number of gas generators increases, in particular with regard to reliability, since the precautions necessary to ensure an acceptable reliability rate then become very costly in cost and in place.
Ces deux exigences, augmentation de la fiabilité et diminution de l'encombrement et du poids, ont conduit la Demanderesse, et c'est le but de l'invention, à agencer une combinaison optimisée de moyens.These two requirements, increased reliability and reduced overall dimensions and weight, have led the Applicant, and this is the aim of the invention, to arrange an optimized combination of means.
La présente invention a pour objet un système mettant en oeuvre un dispositif électropyrotechnique destiné à déclencher le fonctionnement d'un générateur à poudre placé à l'intérieur d'une virole possédant un fond avant et un fond arrière caractérisé en ce que :
- une chambre aval contenant un explosif secondaire récepteur dit IFOC, capable en détonant sous l'action d'une onde de choc de provoquer des flammes entraînant le déclenchement du générateur de poudre et réalisée dans un premier alésage d'un élément de fermeture du fond arrière de la virole qui a une forme d'un tronc de cône, des tuyères débouchant dans la paroi latérale du fond arrière ;
- une cavité amont contenant un explosif secondaire donneur et réalisée dans un deuxième alésage disposé tête-bêche par rapport au premier alésage et séparé de ce dernier par une barrière étanche qui est constituée par une zone de l'élément de fermeture du fond arrière de la virole ;
- une amorce à couche projetée dite EFI engendrant, lorsqu'elle est initiée, une détonation dans la cavité amont et positionnée en vis-à-vis de la cavité amont ;
- un boîtier coiffant le fond arrière et ayant un fond en forme de tronc de cône, complémentaire du tronc de cône du boîtier fond arrière de la virole.The subject of the present invention is a system implementing an electropyrotechnic device intended to trigger the operation of a powder generator placed inside a ferrule having a front bottom and a rear bottom, characterized in that:
- a downstream chamber containing a secondary receiving explosive called IFOC, capable of detonating under the action of a shock wave to cause flames causing the triggering of the powder generator and produced in a first bore of a bottom closing element rear of the ferrule which has the shape of a truncated cone, nozzles opening into the side wall of the rear bottom;
- an upstream cavity containing a secondary donor explosive and produced in a second bore arranged head to tail relative to the first bore and separated from the latter by a barrier watertight which is constituted by a zone of the closing element of the rear bottom of the shell;
- a primer with a projected layer called EFI generating, when it is initiated, a detonation in the upstream cavity and positioned opposite the upstream cavity;
- A housing covering the rear bottom and having a bottom in the form of a truncated cone, complementary to the truncated cone of the rear bottom case of the ferrule.
L'invention sera mieux comprise à l'aide des explications qui vont suivre et des figures jointes parmi lesquelles :
- - les figures 1 et 2 sont des coupes selon deux plans orthogonaux d'un système selon l'invention ;
- - la figure 3 est un autre exemple de mise en oeuvre d'une combinaison électropyrotechnique conforme à l'invention ;
- - la figure 4 est un exemple illustrant le profil d'un pain de poudre servant au chargement des générateurs de gaz équipés d'une combinaison électropyrotechnique selon l'invention ;
- - la figure 5 est une illustration d'une grille servant au chargement des générateurs de gaz.
- - Figures 1 and 2 are sections along two orthogonal planes of a system according to the invention;
- - Figure 3 is another example of implementation of an electropyrotechnic combination according to the invention;
- - Figure 4 is an example illustrating the profile of a loaf of powder used for loading gas generators equipped with an electropyrotechnic combination according to the invention;
- - Figure 5 is an illustration of a grid used for loading gas generators.
Pour plus de clarté, les mêmes éléments portent les mêmes références dans toutes les figures.For the sake of clarity, the same elements are given the same references in all the figures.
Comme le montrent les figures 1 et 2, un dispositif électropyrotechnique (E) selon l'invention est essentiellement constitué, pour sa partie allumage, d'une amorce à couche projetée (1), plus connue sous la terminologie anglosaxonne de "EFI" (Exploding Foil Initiator).Celui-ci engendre une détonation dans une cavité amont (Ca) qui contient un explosif secondaire donneur (2). Quand ce dernier détone, il engendre une onde de choc qui se propage à travers une barrière étanche (3) vers une chambre aval (Ch) contenant un explosif secondaire récepteur (4), capable en détonant de provoquer des flammes qui, à leur tour, provoquent la combustion du chargement de poudre (P) du générateur de gaz (g) concerné. L'allumeur du générateur de gaz est ainsi assuré, conformément à l'invention, au moyen de la combinaison d'un EFI et d'un IFOC (Inflammateur fonctionnant par onde de choc).As shown in FIGS. 1 and 2, an electropyrotechnic device (E) according to the invention essentially consists, for its ignition part, of a primer with a projected layer (1), better known under the English terminology of "EFI" ( Exploding Foil Initiator). This generates a detonation in an upstream cavity (Ca) which contains a secondary donor explosive (2). When the latter detonates, it generates a shock wave which propagates through a tight barrier (3) towards a downstream chamber (Ch) containing a secondary receiving explosive (4), capable of detonating to cause flames which, in turn , cause combustion of the powder charge (P) of the gas generator (g) concerned. The igniter of the gas generator is thus ensured, in accordance with the invention, by means of the combination of an EFI and an IFOC (igniter operating by shock wave).
Une telle combinaison présente l'avantage d'éviter la mise en place dans la chaîne pyrotechnique, comme c'est le cas dans l'art connu, de moyens de sécurité entre les inflammateurs classiques et les charges pyrotechniques. En outre, on évite ainsi l'introduction de moyens électriques à l'intérieur des générateurs de gaz.Such a combination has the advantage of avoiding the installation in the pyrotechnic chain, as is the case in the known art, of safety means between conventional igniters and pyrotechnic charges. In addition, this avoids the introduction of electrical means inside the gas generators.
La mise en oeuvre d'un tel dispositif électropyrotechnique (E) selon l'invention est, selon une autre caractéristique de l'invention, intégrable au moins partiellement dans la structure même du générateur de gaz (g). Il en résulte un produit fini compact et sûr.The implementation of such an electropyrotechnic device (E) according to the invention is, according to another characteristic of the invention, at least partially integrated into the structure of the gas generator (g). The result is a compact and safe finished product.
Selon une autre caractéristique de l'invention, le système décrit est constitué d'un allumeur tel que décrit ci-dessus, capable d'assurer le démarrage correct de la combustion, d'un chargement de propergol à double base ayant un profil et des caractéristiques de combustion tels que la pression se maintienne à une valeur quasi-constante durant toute la durée de la combustion. Un pallet (22) de fermeture est mis en place pour fermer la chambre (ch) de l'IFOC.According to another characteristic of the invention, the system described consists of an igniter as described above, capable of ensuring the correct start of combustion, of a double-base propellant charge having a profile and combustion characteristics such that the pressure is maintained at an almost constant value throughout the duration of the combustion. A closing pallet (22) is put in place to close the IFOC chamber (ch).
Selon un exemple de réalisation et comme cela est illustré au moyen des figures 1 et 2, le chargement de poudre (P) est réalisé à l'intérieur d'une virole (10) dont le fond avant (15) est hémisphérique et dont le fond arrière (16) qui porte les tuyères (12, 13), est rendu solidaire de la virole (10) au moyen par exemple d'un pas de vis (14). Ce fond arrière (16) a la forme d'un tronc de cône convergent, les tuyères (12) et (13) débouchant dans la paroi latérale de ce tronc de cône. Dans l'exemple décrit, les tuyères sont au nombre de deux, diamétralement opposées, mais ce nombre n'est pas limitatif.According to an exemplary embodiment and as illustrated by means of FIGS. 1 and 2, the powder loading (P) is carried out inside a ferrule (10) whose front bottom (15) is hemispherical and whose rear bottom (16) which carries the nozzles (12, 13), is made integral with the shell (10) by means, for example, of a screw thread (14). This rear bottom (16) has the shape of a converging truncated cone, the nozzles (12) and (13) opening into the side wall of this truncated cone. In the example described, the nozzles are two in number, diametrically opposite, but this number is not limiting.
L'élément fermeture (21) du fond arrière (16) présente au niveau du sommet du tronc de cône deux alésages disposés tête-bêche, l'un délimite le volume de la chambre aval (Ch) contenant l'explosif secondaire récepteur (4), l'autre le volume de la cavité (Ca) contenant l'explosif secondaire donneur (2); une zone de l'élément de fermeture (21) constitue la barrière étanche (3) de l'IFOC, barrière capable de permettre la propagation de l'onde de choc tout en présentant des qualités de résistance mécanique suffisante.The closing element (21) of the rear bottom (16) has at the top of the truncated cone two bores arranged head to tail, one delimits the volume of the downstream chamber (Ch) containing the secondary receiving explosive (4), the other the volume of the cavity (Ca) containing the secondary donor explosive (2); a zone of the closing element (21) constitutes the impermeable barrier (3) of the IFOC, a barrier capable of permitting the propagation of the shock wave while having qualities of sufficient mechanical resistance.
Le fond arrière (16) est coiffé d'un boîtier en matière plastique métallisée étanche (17) dont le fond (18) est lui aussi en forme de tronc de cône, complémentaire du tronc de cône convergent défini précédemment.The rear bottom (16) is capped with a waterproof metallized plastic casing (17) whose bottom (18) is also in the form of a truncated cone, complementary to the convergent truncated cone defined above.
Les deux extrémités de ces deux troncs de cônes s'emboîtent l'une dans l'autre, emprisonnant la cavité (Ca) contenant l'explosif secondaire donneur (2). Le couvercle (30) de ce boîtier (17) maintient en position l'EFI (1) posé sur le sommet du tronc de cône du boîtier (17). Ce dernier contient l'électronique de commande (non représentée) qui est alimentée à travers sa paroi, via des filtres (31) et des moyens de traversée étanche (37), au moyen d'une liaison électrique (32) elle-même reliée à un séquenceur non représenté. Ce boîtier (17) est posé sur un coussin (33) jouant le rôle d'amortisseur tandis qu'un jeu de joints (34) assure l'étanchéité à tous les niveaux. Le boîtier est réalisé par exemple en matière plastique métallisée et constitue un logement idéal pour l'électronique de commande de l'EFl (1).The two ends of these two trunks of cones fit into each other, trapping the cavity (Ca) containing the secondary donor explosive (2). The cover (30) of this housing (17) maintains in position the EFI (1) placed on the top of the truncated cone of the housing (17). The latter contains the control electronics (not shown) which is supplied through its wall, via filters (31) and sealed crossing means (37), by means of an electrical connection (32) itself connected to a sequencer not shown. This housing (17) is placed on a cushion (33) acting as a shock absorber while a set of seals (34) seals at all levels. The housing is made for example of metallized plastic and constitutes an ideal housing for the electronic control of the EFl (1).
Le tout est fermé par un capot (35) rendu solidaire du fond arrière (16) par tous moyens connus tels qu'un système de vis (40). On a représenté sur ces figures un seul générateur mais, comme cela a été dit précédemment, l'invention s'applique plus particulièrement lorsque ces générateurs sont regroupés en batterie.The whole is closed by a cover (35) made integral with the rear bottom (16) by any known means such as a screw system (40). There is shown in these figures a single generator but, as has been said previously, the invention applies more particularly when these generators are grouped in battery.
La figure 3 illustre un autre exemple de réalisation de la combinaison (EFI-IFOC) intégré dans le fond arrière (16) porte-tuyères. On y retrouve comme précédemment les deux alésages délimitant la cavité amont (Ca), la chambre aval (Ch) et la barrière étanche (3), mais dans cette forme de réalisation, l'EFI (1) est directement rendu solidaire du fond arrière (16) porte-tuyères, au moyen par exemple d'un filetage (60). Une telle architecture contribue à rendre l'ensemble encore plus compact.Figure 3 illustrates another embodiment of the combination (EFI-IFOC) integrated in the rear bottom (16) nozzle holders. We find there as before the two bores delimiting the upstream cavity (Ca), the downstream chamber (Ch) and the waterproof barrier (3), but in this embodiment, the EFI (1) is directly secured to the rear bottom (16) nozzle holders, for example by means of a thread (60). Such an architecture contributes to making the whole even more compact.
Comme le montrent la figure 4 et la figure 5, le chargement de propergol est constitué de sept pains de poudre (P) dont le profil de combustion est en étoile (figure 3). Ces pains de poudre (propergol à double base) sont maintenus à l'aide de deux grilles métalliques (50) munies de griffes de coincement (55) et d'éléments d'écartement (56).As shown in Figure 4 and Figure 5, the propellant charge consists of seven powder loaves (P) whose combustion profile is star (Figure 3). These powder loaves (double-base propellant) are held in place by two metal grids (50) provided with clamping claws (55) and spacing elements (56).
Comme cela a déjà été dit précédemment dans une architecture telle que décrite conformément à l'invention, on assure un allumage du propergol, dont la combustion se fait à pression constante, sans devoir introduire de moyens électriques à l'intérieur de la charge. L'allumage nécessite la mise en oeuvre uniquement d'explosifs secondaires, ce qui contribue à la fiabilité du système. Le fait de faire appel à la combinaison d'un EFI et d'un IFOC permet en outre d'intégrer ces moyens ainsi que les moyens de commande électronique de l'EFI (1) à l'intérieur de la structure générale du générateur de gaz (g) et ceci sans risque de passage de gaz étant donné l'existence du capot (35) d'une part et de l'élément de fermeture (21) d'autre part, élément qui assure une seconde fonction, à savoir celle de propager l'onde de choc au niveau de la barrière étanche (3) de l'IFOC.As has already been said previously in an architecture as described in accordance with the invention, ignition of the propellant is ensured, combustion takes place at constant pressure, without having to introduce electrical means inside the charge. Ignition requires the use of secondary explosives only, which contributes to the reliability of the system. The fact of using the combination of an EFI and an IFOC further makes it possible to integrate these means as well as the electronic control means of the EFI (1) within the general structure of the generator. gas (g) and this without risk of gas passage given the existence of the cover (35) on the one hand and the closing element (21) on the other hand, element which performs a second function, namely that of propagating the shock wave at the level of the waterproof barrier (3) of the IFOC.
Les moyens de commande électronique sont compactés au maximum à l'intérieur d'un boîtier lui-même situé à l'intérieur de la structure générale du générateur de gaz.The electronic control means are compacted as much as possible inside a box itself located inside the general structure of the gas generator.
L'invention s'applique chaque fois qu'une batterie de générateurs est mise en oeuvre, comme c'est le cas dans le domaine de l'éjection des sous-munitions air-sol à partir d'un cargo.The invention applies each time a battery of generators is used, as is the case in the field of ejecting air-to-ground submunitions from a cargo ship.
Claims (8)
- une chambre aval (Ch) contenant un explosif secondaire récepteur (4) dit IFOC, capable en détonant sous l'action d'une onde de choc de provoquer des flammes entraînant le déclenchement du générateur de poudre (P) et réalisée dans un premier alésage d'un élément de fermeture (21) du fond arrière (16) de la virole qui a une forme d'un tronc de cône, des tuyères (12, 13) débouchant dans la paroi latérale du fond arrière (16) ;
- une cavité amont (Ca) contenant un explosif secondaire donneur (2) et réalisée dans un deuxième alésage disposé tête-bêche par rapport au premier alésage et séparé de ce dernier par une barrière étanche qui est constituée par une zone de l'élément de fermeture (21) du fond arrière (16) de la virole (10) ;
- une amorce a couche projetée (1) dite EFI engendrant, lorsqu'elle est initiée, une détonation dans la cavité amont (Ca) et positionnée en vis-à-vis de la cavité amont (Ca) ;
- un boîtier (17) coiffant le fond arrière (16) et ayant un fond (18) en forme de tronc de cône, complémentaire du tronc de cône du boîtier fond arrière (16) de la virole (10).1. System implementing an electropyrotechnic device intended to trigger the operation of a powder generator (P) placed inside a ferrule (10) having a front bottom (15) and a rear bottom (16) characterized in that it includes:
- a downstream chamber (Ch) containing a secondary receiving explosive (4) called IFOC, capable of detonating under the action of a shock wave to cause flames causing the triggering of the powder generator (P) and carried out in a first bore of a closing element (21) of the rear bottom (16) of the ferrule which has the shape of a truncated cone, nozzles (12, 13) opening into the side wall of the rear bottom (16);
- an upstream cavity (Ca) containing a secondary donor explosive (2) and produced in a second bore arranged head to tail relative to the first bore and separated from the latter by a tight barrier which is constituted by a zone of the element of closure (21) of the rear bottom (16) of the ferrule (10);
- a primer with a projected layer (1) called EFI generating, when it is initiated, a detonation in the upstream cavity (Ca) and positioned opposite the upstream cavity (Ca);
- A housing (17) covering the rear bottom (16) and having a bottom (18) in the form of a truncated cone, complementary to the truncated cone of the rear bottom casing (16) of the ferrule (10).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8908183A FR2648554B1 (en) | 1989-06-20 | 1989-06-20 | SYSTEM IMPLEMENTING AN ELECTROPYROTECHNICAL DEVICE FOR SEQUENTIALLY TRIGGERING THE OPERATION OF A GAS GENERATOR BATTERY |
| FR8908183 | 1989-06-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0404644A1 true EP0404644A1 (en) | 1990-12-27 |
| EP0404644B1 EP0404644B1 (en) | 1993-06-23 |
Family
ID=9382932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP90401674A Expired - Lifetime EP0404644B1 (en) | 1989-06-20 | 1990-06-15 | Electropyrotechnic device for triggering the functioning of a gas generator |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US5092237A (en) |
| EP (1) | EP0404644B1 (en) |
| CA (1) | CA2019304A1 (en) |
| DE (1) | DE69002040D1 (en) |
| FR (1) | FR2648554B1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5348344A (en) * | 1991-09-18 | 1994-09-20 | Trw Vehicle Safety Systems Inc. | Apparatus for inflating a vehicle occupant restraint using a mixture of gases |
| USRE37843E1 (en) | 1991-09-18 | 2002-09-17 | Trw Vehicle Safety Systems Inc. | Apparatus for inflating a vehicle occupant restraint using a mixture of gases |
| US5969286A (en) * | 1996-11-29 | 1999-10-19 | Electronics Development Corporation | Low impedence slapper detonator and feed-through assembly |
| US6607214B2 (en) * | 2001-08-17 | 2003-08-19 | Autoliv Asp, Inc. | Gas generation via indirect ignition |
| US7380820B2 (en) * | 2005-06-23 | 2008-06-03 | Trw Vehicle Safety Systems Inc. | Heated gas inflator |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2703960A (en) * | 1953-08-31 | 1955-03-15 | Phillips Petroleum Co | Rocket |
| FR1118847A (en) * | 1954-01-06 | 1956-06-12 | Ici Ltd | Loads generating driving gases and their manufacturing processes |
| DE1167120B (en) * | 1960-08-10 | 1964-04-02 | Boelkow Entwicklungen Kg | Solid rocket engine, the propellant body of which is designed as an internal star burner |
| FR1430432A (en) * | 1964-02-21 | 1966-03-04 | Dynamit Nobel Ag | Percussion ignition cartridge |
| US3678853A (en) * | 1970-06-12 | 1972-07-25 | Us Navy | Quick disconnect explosive connector assembly |
| FR2132790A1 (en) * | 1971-04-09 | 1972-11-24 | Allied Chem | |
| US3945322A (en) * | 1974-04-05 | 1976-03-23 | The United States Of America As Represented By The Secretary Of The Navy | Through-bulkhead explosion initiation |
| FR2357861A1 (en) * | 1976-07-08 | 1978-02-03 | Systems Science Software | PERFECTED TIMED DETONATOR DEVICE |
| EP0030498A1 (en) * | 1979-12-07 | 1981-06-17 | Aerospatiale Societe Nationale Industrielle | Self separating pyrotechnic connector having sealed parts |
| EP0040011A1 (en) * | 1980-05-09 | 1981-11-18 | EMI Limited | Arrangements for igniting a pyrotechnic charge |
| US4602565A (en) * | 1983-09-26 | 1986-07-29 | Reynolds Industries Inc. | Exploding foil detonator |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1194102A (en) * | 1959-11-06 | |||
| US3982488A (en) * | 1975-02-19 | 1976-09-28 | The United States Of America As Represented By The Secretary Of The Army | Flueric through bulkhead rocket motor ignitor |
| FR2591735B1 (en) * | 1985-12-17 | 1989-09-15 | Thomson Brandt Armements | PYROTECHNIC GAS GENERATOR AND USE IN A DEVICE EJECTING UNMUNITION OF A MILITARY LOAD |
| US4944225A (en) * | 1988-03-31 | 1990-07-31 | Halliburton Logging Services Inc. | Method and apparatus for firing exploding foil initiators over long firing lines |
-
1989
- 1989-06-20 FR FR8908183A patent/FR2648554B1/en not_active Expired - Fee Related
-
1990
- 1990-06-15 DE DE9090401674T patent/DE69002040D1/en not_active Expired - Lifetime
- 1990-06-15 EP EP90401674A patent/EP0404644B1/en not_active Expired - Lifetime
- 1990-06-19 CA CA002019304A patent/CA2019304A1/en not_active Abandoned
- 1990-06-20 US US07/540,699 patent/US5092237A/en not_active Expired - Fee Related
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2703960A (en) * | 1953-08-31 | 1955-03-15 | Phillips Petroleum Co | Rocket |
| FR1118847A (en) * | 1954-01-06 | 1956-06-12 | Ici Ltd | Loads generating driving gases and their manufacturing processes |
| DE1167120B (en) * | 1960-08-10 | 1964-04-02 | Boelkow Entwicklungen Kg | Solid rocket engine, the propellant body of which is designed as an internal star burner |
| FR1430432A (en) * | 1964-02-21 | 1966-03-04 | Dynamit Nobel Ag | Percussion ignition cartridge |
| US3678853A (en) * | 1970-06-12 | 1972-07-25 | Us Navy | Quick disconnect explosive connector assembly |
| FR2132790A1 (en) * | 1971-04-09 | 1972-11-24 | Allied Chem | |
| US3945322A (en) * | 1974-04-05 | 1976-03-23 | The United States Of America As Represented By The Secretary Of The Navy | Through-bulkhead explosion initiation |
| FR2357861A1 (en) * | 1976-07-08 | 1978-02-03 | Systems Science Software | PERFECTED TIMED DETONATOR DEVICE |
| EP0030498A1 (en) * | 1979-12-07 | 1981-06-17 | Aerospatiale Societe Nationale Industrielle | Self separating pyrotechnic connector having sealed parts |
| EP0040011A1 (en) * | 1980-05-09 | 1981-11-18 | EMI Limited | Arrangements for igniting a pyrotechnic charge |
| US4602565A (en) * | 1983-09-26 | 1986-07-29 | Reynolds Industries Inc. | Exploding foil detonator |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2019304A1 (en) | 1990-12-20 |
| US5092237A (en) | 1992-03-03 |
| DE69002040D1 (en) | 1993-07-29 |
| FR2648554B1 (en) | 1994-03-25 |
| FR2648554A1 (en) | 1990-12-21 |
| EP0404644B1 (en) | 1993-06-23 |
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