EP1079200A1 - Pyrotechnic device for connection and delay - Google Patents

Pyrotechnic device for connection and delay Download PDF

Info

Publication number
EP1079200A1
EP1079200A1 EP00410101A EP00410101A EP1079200A1 EP 1079200 A1 EP1079200 A1 EP 1079200A1 EP 00410101 A EP00410101 A EP 00410101A EP 00410101 A EP00410101 A EP 00410101A EP 1079200 A1 EP1079200 A1 EP 1079200A1
Authority
EP
European Patent Office
Prior art keywords
cylinder
pyrotechnic device
parts
track
wicks
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.)
Granted
Application number
EP00410101A
Other languages
German (de)
French (fr)
Other versions
EP1079200B1 (en
EP1079200B9 (en
Inventor
Francesco Ambrico
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP1079200A1 publication Critical patent/EP1079200A1/en
Publication of EP1079200B1 publication Critical patent/EP1079200B1/en
Application granted granted Critical
Publication of EP1079200B9 publication Critical patent/EP1079200B9/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42DBLASTING
    • F42D1/00Blasting methods or apparatus, e.g. loading or tamping
    • F42D1/04Arrangements for ignition
    • F42D1/06Relative timing of multiple charges
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42BEXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B4/00Fireworks, i.e. pyrotechnic devices for amusement, display, illumination or signal purposes
    • F42B4/24Fireworks, i.e. pyrotechnic devices for amusement, display, illumination or signal purposes characterised by having plural successively-ignited charges

Definitions

  • the present invention relates to the field of pyrotechnics.
  • the various pyrotechnic pieces for example rockets placed in mortars, are connected in clusters, i.e. the quick wick of each piece is connected to another wick directly or through a pyrotechnic delay, itself linked to another wick, to another delay, etc., to a point to which an igniter is connected electric. It might be easier to link directly each wick of each firework to a specific igniter and, by an electronic circuit, to control the instant each element. However, in practice, this is much too expensive and we prefer to use the system traditional wicks and pyrotechnic delays.
  • Delay devices are of various types. he for example, slow wicks or Bickford cords. However, more generally, delays made up of powder packed in a cardboard cylinder because it is currently the cheapest device. Commonly, the connections between igniter, wicks and delay devices are provided by kraft paper sheaths and ligatures, these sheaths and ligatures then possibly being themselves ligated or nailed to wooden bars, for example the housing in which are arranged several mortars. The realization of such assembly is long and tedious. So generally proceeds to assemble the various elements in advance, workshop. In addition, such arrangements are not easily accessible to a non-professional user.
  • the above delay devices also have the disadvantage of not making it possible to carry out any delay time. It is generally accepted that, with common powders, the length of the cardboard cylinder fixes the delay time which is around one second per centimeter. In practice, it is difficult to get relatively accurate delays from a duration less than 2 seconds or more than 5 to 6 seconds. Otherwise, you have to switch to slow strands of cord type. Bickford which are significantly more expensive.
  • kraft paper assemblies are subject to malfunctions in case of heavy rain. Then protect the various delay devices and the various arrangements.
  • delay systems produce strong flames on one side of the cylinder when the delay begins to ignite and on both sides when the flame reaches the other end of the delay. These strong flames are likely ignite wicks or delay devices located proximity. This requires taking extra precautions and further complicates the assembly.
  • an object of the present invention is to provide a connection and delay system between wicks or between igniter and wick (s) which is particularly simple to set up works and which allows to reach delays of durations chosen, for example ranging from zero duration to durations of the order of a minute or more.
  • Another object of the present invention is to provide such a system for selecting a delay of a duration chosen from several predetermined durations.
  • the present invention provides a pyrotechnic device for connection and delay between wicks and / or between igniter and wicks, comprising a cavity divided into two parts with internal walls coated a highly flammable material; means for blocking one or more several wicks in each part; and means of communication between the two parties.
  • Figure 1A is a sectional view of a first mode of embodiment of the present invention consisting of a cylinder hollow 1 whose internal walls 2 are coated with a material highly flammable, preferably a powdery product which ignites very easily inside a cavity. This product is for example black powder stuck.
  • a means 3 for holding a wick At each end of the cylinder 1 is mounted a means 3 for holding a wick.
  • this holding means is represented in the form of a cap.
  • the cylinder 1 is made of plastic as well as the caps 3.
  • FIG. 1B represents an end view of an example of cap.
  • the flat part of the cap is for example a sheet thin, elastic plastic material cut into a star for form tongues whose tip is substantially in point of intersection of the sheet and the axis of the cylinder. So, when a drill bit is pressed towards the inside of the cylinder, the elementary tongues deform and bend inward, opposing removal of the wick.
  • Figure 1C shows the device of Figure 1A also in a sectional view, in the case where wicks 4 and 5 are respectively inserted in the left part 6 and in the straight part 7 of the cylinder.
  • the wicks can be more or less sunken and go or not until joining.
  • FIG. 1D illustrates an alternative embodiment of the wick holding means 3 according to the present invention.
  • This medium takes the form of a flange 8 provided with turned teeth inward and fixed at point 9 at one end of the tube 1.
  • the free ends of the collar are provided with means additional fixing 10, for example by clipping, for tighten the flange against a wick and the walls of the tube.
  • This embodiment allows better adaptation to wicks relatively hard and of large diameter.
  • the device according to the first embodiment of the present invention allows the connection between two locks.
  • wick 4 Once wick 4 has been lit, it transmits flames inside the cylinder which can ignite directly the end of the opposite wick 5.
  • the wick 4 causes the powder placed on the internal walls 2 and the flame created by this powder causes the second wick 5 to ignite if a conflagration direct did not happen.
  • the cylinders 1 and their caps 3 can be sized so that we can introduce each end one or more wicks. We can also let a wick penetrate on one side and an igniter on the other side electric or bring in a wick and a side igniter and on the other side one or more wicks to be able propagate the flame communicated by the igniter simultaneously with several wicks.
  • Figure 2 shows a sectional view of a second embodiment of the present invention ensuring a connection function between wicks with a non-zero delay.
  • the device according to the second embodiment of this invention comprises two cylindrical parts 11 and 12 embedded one inside the other.
  • the internal cavity of the inner cylinder 11 is divided into two parts 13 and 14 by a partition 15.
  • the internal walls of each of the two parts 13 and 14 are, as in the case of the first embodiment of the present invention, coated with highly flammable material 2.
  • the outer wall of the internal cylinder 11 is provided with a grooving, for example helical similar to a thread, forming a track 16 which communicates by a first end with an orifice 17 in the wall of the left part 13 of the internal cavity of the cylinder 11 and by a second end with an orifice 18 in the wall of the right part 14 of the internal cavity of the cylinder 11.
  • the track 16 formed between the holes 17 and 18 is filled with a material allowing, when lit at one end, to spread the flame toward the other end, at a substantially linear speed constant. This will be, for example, packed black powder or a specific cord such as a fine slow wick manufactured by the Bickford company.
  • end caps 3 allow insertion and locking of wicks 4 and 5 in each of the cavity parts 13 and 14.
  • wick 4 or an igniter replacing wick 4 brings a flame to be created in the left part 13, this flame ignites the powder placed on the walls of this part 13.
  • FIG. 3 represents an alternative embodiment of the device of FIG. 2, constituting a third mode of realization of the present invention.
  • the device comprises an internal cylinder 21 and an external cylinder 22.
  • the cavity internal is divided into two parts 23 and 24 by a partition 25.
  • a short rectilinear track 26 extends between orifices 27 and 28 passing through the walls of the cavity parts 23 and 24.
  • the partition 25 can be opened. arrives at a structure very similar to that of the first embodiment of the invention.
  • FIG. 3 A lock / lock system for wicks different from that of FIGS. 1 and 2 is also illustrated in FIG. 3.
  • the outer tube 22 overflows on either side of the inner tube 21 and has in the overhanging part an annular groove 29 intended to receive a disc 30 for blocking a wick.
  • This disc may have in view at the end, a look similar to that of Figures 1 and 2.
  • the Figure 3 device has larger slots between the elementary tabs, and that the central part is cut out.
  • a disc made of a material flexible metal According to another variant of the present invention, not shown, the support system may be made up of molded plastic tabs ends of the inner cylinder.
  • FIG. 4 represents a fourth embodiment of the present invention.
  • the left side of the figure has a device similar to that of FIG. 2 in which same elements have been designated by the same references.
  • the part right 14 of the cavity located on the right of the partition 15 extends by dividing into several cylinders 31 to 34, of which each is intended to receive a wick 35 to 38.
  • FIGS. 5A and 5B show in side view and in front view a fifth embodiment of this invention.
  • the left part of the device of FIG. 5A is similar to that of figure 4.
  • the device instead of dividing into several cylinders, flares in a fan 41, its end face comprising a system 42 of anti-removal lock of several wicks that can be inserted parallel.
  • the present invention provides a device for particularly simple, reliable, adjustable and safe delay. Moreover, this device can be relatively low cost, can be manufactured in large series in plastic ...
  • Figure 6 shows a sixth embodiment of the present invention in which the same pyrotechnic device delay may, at the option of the user, achieve one of several predetermined delays.
  • This device comprises an internal tube 50, a tube intermediate 60 and an outer tube 70.
  • the internal tube 50 like the tube 1 in FIG. 1, the tube 11 of figure 2 or the tube 21 of figure 3 has its walls internal coated with highly flammable material 2.
  • This tube 50 is divided into two parts by an internal partition 51. It includes through openings 52 and 53 on either side of the partition.
  • the intermediate tube 60 is a tube on the surface external of which several longitudinal tracks 61, 62, 63 are formed in the example shown, the ends of which have openings 61-1, 61-2, 62-1, 62-2 and 63-1, 63-2. These openings pass through the tube 60.
  • the device comprises an external tube 70 of protection.
  • the outer tube 70 is mounted fixed relative to the tube intermediate 60 which can rotate relative to the internal tube 50.
  • Various means may be provided so that, after assembly, the inner tube can rotate relative to the intermediate tube while being held axially.
  • a first mark 54 is formed on the outer edge of the inner tube, which is for example slightly longer than the intermediate tube, to facilitate its gripping and setting rotation.
  • the intermediate tube is provided with second marks, preferably at its two ends, respectively 61-0, 62-0 and 63-0.
  • a track 65 extends between the ends of the tracks 61, 62, 63 on the side opposite the side where ignition normally occurs. So, once a track has been lit and has played its delay, ignition spreads to other tracks and powder they contain is burnt, which prevents the device, once used, may present any danger.
  • FIG. 7 represents a variant of the sixth mode of realization of the present invention.
  • paired openings 56, 57, 58 are provided intended to cooperate with corresponding openings of the tube intermediate.
  • the openings in the intermediate tube can be those represented in figure 6. It can also be the openings of a helical track 71 shown in FIG. 7.
  • the benchmarks must be identified. Preferably they will identified by the same colors or the same indications.
  • This sixth embodiment of the present invention may appear more complex than the embodiments described previously.
  • the cost of manufacturing such a device will be weaker than the others because it could be manufactured in very large series, the same device can be used to achieve various delays. Besides, it will no longer arise, for the user, the problem of having to store ranges of delay devices.
  • the present invention is capable of various variants and modifications which will appear to the man of art.
  • the various embodiments described can be combined; for example the multi-connection systems of FIGS. 4 and 5 can be adapted to the first embodiment of the invention.

Abstract

The connector consists of a tube (12) with an inner cylinder (11) which has its cavity divided into two sections (13, 14) by a middle partition (15) and lined with a highly inflammable material (2). Two fuses (4, 5) are inserted into the cavities and held in place by end caps (3), while the inner cylinder's outer surface has a spiral groove (16) containing a slow-burning material, such as a compacted powder. The groove is connected to the two inner cavities by a hole (17, 18) at each end.

Description

La présente invention concerne le domaine de la pyrotechnie.The present invention relates to the field of pyrotechnics.

Quand on veut déclencher un feu d'artifice, on cherche à minimiser le nombre d'allumages de pièces pyrotechniques individuelles, telles que des fusées, des fontaines lumineuses, des bougies, etc. Ainsi, les diverses pièces pyrotechniques, par exemple des fusées placées dans des mortiers, sont connectées en grappes, c'est-à-dire que la mèche rapide de chaque pièce est reliée à une autre mèche directement ou par l'intermédiaire d'un retard pyrotechnique, lui-même lié à une autre mèche, à un autre retard, etc., jusqu'à un point auquel on relie un allumeur électrique. Il serait peut-être plus simple de relier directement chaque mèche de chaque pièce pyrotechnique à un allumeur spécifique et, par un circuit électronique, de commander l'instant d'allumage de chaque élément. Néanmoins, en pratique, ceci s'avère beaucoup trop cher et l'on préfère utiliser le système traditionnel à mèches et retards pyrotechniques.When we want to start a firework, we look to minimize the number of ignitions of pyrotechnics individual, such as rockets, light fountains, candles, etc. Thus, the various pyrotechnic pieces, for example rockets placed in mortars, are connected in clusters, i.e. the quick wick of each piece is connected to another wick directly or through a pyrotechnic delay, itself linked to another wick, to another delay, etc., to a point to which an igniter is connected electric. It might be easier to link directly each wick of each firework to a specific igniter and, by an electronic circuit, to control the instant each element. However, in practice, this is much too expensive and we prefer to use the system traditional wicks and pyrotechnic delays.

Les dispositifs de retard sont de divers types. Il s'agira par exemple de mèches lentes ou cordons Bickford. Toutefois, plus généralement, on utilise des retards constitués de poudre tassée dans un cylindre de carton car c'est actuellement le dispositif le moins cher. Couramment, les liaisons entre allumeur, mèches et dispositifs de retard sont assurées par des gaines de papier kraft et des ligatures, ces gaines et ces ligatures étant ensuite éventuellement elles-mêmes ligaturées ou clouées sur des barrettes en bois, par exemple le boítier dans lequel sont disposés plusieurs mortiers. La réalisation d'un tel montage est longue et fastidieuse. Ainsi, de façon générale, on procède à l'assemblage des divers éléments à l'avance, en atelier. En outre, de tels montages sont peu accessibles à un utilisateur non professionnel.Delay devices are of various types. he for example, slow wicks or Bickford cords. However, more generally, delays made up of powder packed in a cardboard cylinder because it is currently the cheapest device. Commonly, the connections between igniter, wicks and delay devices are provided by kraft paper sheaths and ligatures, these sheaths and ligatures then possibly being themselves ligated or nailed to wooden bars, for example the housing in which are arranged several mortars. The realization of such assembly is long and tedious. So generally proceeds to assemble the various elements in advance, workshop. In addition, such arrangements are not easily accessible to a non-professional user.

Les dispositifs de retard ci-dessus présentent aussi l'inconvénient de ne pas permettre de réaliser n'importe quelle durée de retard. On admet généralement que, avec les poudres courantes, la longueur du cylindre en carton fixe la durée du retard qui est de l'ordre d'une seconde par centimètre. En pratique, il est difficile d'obtenir des retards relativement précis d'une durée inférieure à 2 secondes ou supérieure à 5 à 6 secondes. Sinon, il faut passer à des mèches lentes de type cordons Bickford qui sont nettement plus coûteuses.The above delay devices also have the disadvantage of not making it possible to carry out any delay time. It is generally accepted that, with common powders, the length of the cardboard cylinder fixes the delay time which is around one second per centimeter. In practice, it is difficult to get relatively accurate delays from a duration less than 2 seconds or more than 5 to 6 seconds. Otherwise, you have to switch to slow strands of cord type. Bickford which are significantly more expensive.

De plus, les assemblages à papier kraft sont sujets à de mauvais fonctionnements en cas de fortes pluies. Il faut alors protéger les divers dispositifs de retard et les divers montages.In addition, kraft paper assemblies are subject to malfunctions in case of heavy rain. Then protect the various delay devices and the various arrangements.

En outre, les systèmes de retard produisent de fortes flammes d'un côté du cylindre quand le retard commence à s'enflammer et des deux côtés quand la flamme arrive à l'autre extrémité du retard. Ces fortes flammes sont susceptibles d'enflammer des mèches ou des dispositifs de retard situés à proximité. Cela impose de prendre des précautions supplémentaires et complique encore le montage.In addition, delay systems produce strong flames on one side of the cylinder when the delay begins to ignite and on both sides when the flame reaches the other end of the delay. These strong flames are likely ignite wicks or delay devices located proximity. This requires taking extra precautions and further complicates the assembly.

Ainsi, un objet de la présente invention est de prévoir un système de connexion et de retard entre mèches ou entre allumeur et mèche(s) qui soit particulièrement simple à mettre en oeuvre et qui permette d'atteindre des retards de durées choisies, par exemple allant d'une durée nulle à des durées de l'ordre d'une minute ou plus. Thus, an object of the present invention is to provide a connection and delay system between wicks or between igniter and wick (s) which is particularly simple to set up works and which allows to reach delays of durations chosen, for example ranging from zero duration to durations of the order of a minute or more.

Un autre objet de la présente invention est de prévoir un tel système permettant de sélectionner un retard d'une durée choisie parmi plusieurs durées prédéterminées.Another object of the present invention is to provide such a system for selecting a delay of a duration chosen from several predetermined durations.

Pour atteindre ces objets, la présente invention prévoit un dispositif pyrotechnique de connexion et de retard entre mèches et/ou entre allumeur et mèches, comprenant une cavité divisée en deux parties dont les parois internes sont revêtues d'un matériau très inflammable ; des moyens de blocage d'une ou plusieurs mèches dans chacune des parties ; et des moyens de communication entre les deux parties.To achieve these objects, the present invention provides a pyrotechnic device for connection and delay between wicks and / or between igniter and wicks, comprising a cavity divided into two parts with internal walls coated a highly flammable material; means for blocking one or more several wicks in each part; and means of communication between the two parties.

Des modes de réalisation particuliers de la présente invention sont indiqués dans les revendications dépendantes.Particular embodiments of this invention are set out in the dependent claims.

Ces objets, caractéristiques et avantages, ainsi que d'autres de la présente invention seront exposés en détail dans la description suivante de modes de réalisation particuliers faite à titre non-limitatif en relation avec les figures jointes parmi lesquelles :

  • la figure 1A est une vue en coupe d'un premier mode de réalisation de la présente invention ;
  • la figure 1B est une vue en bout d'un exemple de capuchon du dispositif de la figure 1A ;
  • la figure 1C représente le dispositif de la figure 1A dans lequel sont insérées des mèches ;
  • la figure 1D est une vue en perspective représentant une variante d'un capuchon de blocage selon la présente invention ;
  • la figure 2 est une vue en coupe schématique d'un deuxième mode de réalisation de la présente invention ;
  • la figure 3 est une vue en coupe schématique d'un troisième mode de réalisation de la présente invention ;
  • la figure 4 est une vue en coupe schématique, partiellement en coupe, d'un quatrième mode de réalisation de la présente invention ;
  • la figure 5A est une vue de côté d'un cinquième mode de réalisation de la présente invention ;
  • la figure 5B est une vue en bout du cinquième mode de réalisation de la présente invention ;
  • la figure 6 est une vue de côté de trois tubes constituant un sixième mode de réalisation de la présente invention ; et
  • la figure 7 est une vue de côté de deux tubes constituant une variante du sixième mode de réalisation de la présente invention.
  • These objects, characteristics and advantages, as well as others of the present invention will be explained in detail in the following description of particular embodiments given without limitation in relation to the attached figures among which:
  • Figure 1A is a sectional view of a first embodiment of the present invention;
  • Figure 1B is an end view of an exemplary cap of the device of Figure 1A;
  • FIG. 1C represents the device of FIG. 1A in which wicks are inserted;
  • Figure 1D is a perspective view showing a variant of a locking cap according to the present invention;
  • Figure 2 is a schematic sectional view of a second embodiment of the present invention;
  • Figure 3 is a schematic sectional view of a third embodiment of the present invention;
  • Figure 4 is a schematic sectional view, partially in section, of a fourth embodiment of the present invention;
  • Figure 5A is a side view of a fifth embodiment of the present invention;
  • Figure 5B is an end view of the fifth embodiment of the present invention;
  • Figure 6 is a side view of three tubes constituting a sixth embodiment of the present invention; and
  • Figure 7 is a side view of two tubes constituting a variant of the sixth embodiment of the present invention.
  • La figure 1A est une vue en coupe d'un premier mode de réalisation de la présente invention constitué d'un cylindre creux 1 dont les parois internes 2 sont revêtues d'un matériau très inflammable, de préférence un produit pulvérulent s'enflammant très facilement à l'intérieur d'une cavité. Ce produit est par exemple de la poudre noire collée.Figure 1A is a sectional view of a first mode of embodiment of the present invention consisting of a cylinder hollow 1 whose internal walls 2 are coated with a material highly flammable, preferably a powdery product which ignites very easily inside a cavity. This product is for example black powder stuck.

    A chacune des extrémités du cylindre 1 est monté un moyen 3 de maintien d'une mèche. Dans le mode de réalisation de la figure 1A, ce moyen de maintien est représenté sous forme d'un capuchon. De préférence, le cylindre 1 est en matière plastique de même que les capuchons 3.At each end of the cylinder 1 is mounted a means 3 for holding a wick. In the embodiment of FIG. 1A, this holding means is represented in the form of a cap. Preferably, the cylinder 1 is made of plastic as well as the caps 3.

    La figure 1B représente une vue en bout d'un exemple de capuchon. La partie plane du capuchon est par exemple une feuille de matière plastique mince et élastique découpée en étoile pour former des languettes dont la pointe est sensiblement au point d'intersection de la feuille et de l'axe du cylindre. Ainsi, quand une mèche est enfoncée vers l'intérieur du cylindre, les languettes élémentaires se déforment et se courbent vers l'intérieur, s'opposant à un retrait de la mèche.FIG. 1B represents an end view of an example of cap. The flat part of the cap is for example a sheet thin, elastic plastic material cut into a star for form tongues whose tip is substantially in point of intersection of the sheet and the axis of the cylinder. So, when a drill bit is pressed towards the inside of the cylinder, the elementary tongues deform and bend inward, opposing removal of the wick.

    La figure 1C représente le dispositif de la figure 1A également dans une vue en coupe, dans le cas où des mèches 4 et 5 sont respectivement insérées dans la partie gauche 6 et dans la partie droite 7 du cylindre. Les mèches peuvent être plus ou moins enfoncées et aller ou non jusqu'à se rejoindre. On a représenté les languettes des capuchons 3 déformées vers l'intérieur et l'on conçoit bien que ceci s'oppose à un arrachement des mèches en exerçant une force raisonnable. Bien entendu, il sera toujours possible, en utilisant un outil de déblocage ou en tirant suffisamment fort, d'arracher les mèches si cela est nécessaire.Figure 1C shows the device of Figure 1A also in a sectional view, in the case where wicks 4 and 5 are respectively inserted in the left part 6 and in the straight part 7 of the cylinder. The wicks can be more or less sunken and go or not until joining. We represented the tabs of the caps 3 deformed inwards and it is understandable that this is opposed to a tearing of the wicks using reasonable force. Of course, it will always possible, using an unlocking tool or pulling hard enough, pulling out the wicks if that's necessary.

    La figure 1D illustre une variante de réalisation du moyen de maintien de mèche 3 selon la présente invention. Ce moyen prend la forme d'une collerette 8 munie de dents tournées vers l'intérieur et fixée en un point 9 à une extrémité du tube 1. Les extrémités libres de la collerette sont munies de moyens de fixation complémentaires 10, par exemple par enclipsage, pour serrer la collerette contre une mèche et les parois du tube. Ce mode de réalisation permet de mieux s'adapter à des mèches relativement dures et de gros diamètre.FIG. 1D illustrates an alternative embodiment of the wick holding means 3 according to the present invention. This medium takes the form of a flange 8 provided with turned teeth inward and fixed at point 9 at one end of the tube 1. The free ends of the collar are provided with means additional fixing 10, for example by clipping, for tighten the flange against a wick and the walls of the tube. This embodiment allows better adaptation to wicks relatively hard and of large diameter.

    Le dispositif selon le premier mode de réalisation de la présente invention permet la liaison entre deux mèches. Par exemple, une fois que la mèche 4 a été allumée, elle transmet des flammes à l'intérieur du cylindre qui peuvent enflammer directement l'extrémité de la mèche opposée 5. En outre, la mèche 4 provoque l'allumage extrêmement rapide de la poudre disposée sur les parois internes 2 et la flamme créée par cette poudre provoque l'allumage de la deuxième mèche 5 si un embrasement direct ne s'est pas produit.The device according to the first embodiment of the present invention allows the connection between two locks. Through example, once wick 4 has been lit, it transmits flames inside the cylinder which can ignite directly the end of the opposite wick 5. In addition, the wick 4 causes the powder placed on the internal walls 2 and the flame created by this powder causes the second wick 5 to ignite if a conflagration direct did not happen.

    On notera que les cylindres 1 et leurs capuchons 3 peuvent être dimensionnés pour que l'on puisse introduire à chaque extrémité une ou plusieurs mèches. On pourra également faire pénétrer d'un côté une mèche et de l'autre côté un allumeur électrique ou encore faire rentrer d'un côté une mèche et un allumeur et de l'autre côté une ou plusieurs mèches pour pouvoir propager la flamme communiquée par l'allumeur simultanément à plusieurs mèches.Note that the cylinders 1 and their caps 3 can be sized so that we can introduce each end one or more wicks. We can also let a wick penetrate on one side and an igniter on the other side electric or bring in a wick and a side igniter and on the other side one or more wicks to be able propagate the flame communicated by the igniter simultaneously with several wicks.

    La figure 2 représente une vue en coupe d'un deuxième mode de réalisation de la présente invention assurant une fonction de connexion entre mèches avec un retard non nul. Le dispositif selon le deuxième mode de réalisation de la présente invention comprend deux pièces cylindriques 11 et 12 encastrées l'une dans l'autre. La cavité interne du cylindre intérieur 11 est divisée en deux parties 13 et 14 par une cloison 15. Les parois internes de chacune des deux parties 13 et 14 sont, comme dans le cas du premier mode de réalisation de la présente invention, revêtues d'un matériau très inflammable 2. La paroi externe du cylindre interne 11 est munie d'un rainurage, par exemple hélicoïdal analogue à un filetage, formant une piste 16 qui communique par une première extrémité avec un orifice 17 dans la paroi de la partie gauche 13 de la cavité interne du cylindre 11 et par une seconde extrémité avec un orifice 18 dans la paroi de la partie droite 14 de la cavité interne du cylindre 11. La piste 16 formée entre les orifices 17 et 18 est remplie d'un matériau permettant, quand il est allumé à une extrémité, de propager la flamme vers l'autre extrémité, à une vitesse linéaire sensiblement constante. Il s'agira par exemple de poudre noire tassée ou d'un cordon spécifique tel qu'une mèche lente fine fabriquée par la société Bickford.Figure 2 shows a sectional view of a second embodiment of the present invention ensuring a connection function between wicks with a non-zero delay. The device according to the second embodiment of this invention comprises two cylindrical parts 11 and 12 embedded one inside the other. The internal cavity of the inner cylinder 11 is divided into two parts 13 and 14 by a partition 15. The internal walls of each of the two parts 13 and 14 are, as in the case of the first embodiment of the present invention, coated with highly flammable material 2. The outer wall of the internal cylinder 11 is provided with a grooving, for example helical similar to a thread, forming a track 16 which communicates by a first end with an orifice 17 in the wall of the left part 13 of the internal cavity of the cylinder 11 and by a second end with an orifice 18 in the wall of the right part 14 of the internal cavity of the cylinder 11. The track 16 formed between the holes 17 and 18 is filled with a material allowing, when lit at one end, to spread the flame toward the other end, at a substantially linear speed constant. This will be, for example, packed black powder or a specific cord such as a fine slow wick manufactured by the Bickford company.

    Comme dans le cas du premier mode de réalisation, des capuchons d'extrémité 3 permettent l'insertion et le blocage de mèches 4 et 5 dans chacune des parties de cavité 13 et 14. Ainsi, quand la mèche 4, ou un allumeur remplaçant la mèche 4, amène une flamme à se créer dans la partie gauche 13, cette flamme allume la poudre disposée sur les parois de cette partie 13. La flamme se propage dans de la poudre disposée dans l'orifice 17 et le long de la piste 16, arrive à l'orifice 18, enflamme la poudre disposée sur les parois de la partie droite 14 de la cavité, et déclenche l'allumage de la mèche 5.As in the case of the first embodiment, end caps 3 allow insertion and locking of wicks 4 and 5 in each of the cavity parts 13 and 14. Thus, when wick 4, or an igniter replacing wick 4, brings a flame to be created in the left part 13, this flame ignites the powder placed on the walls of this part 13. The flame spreads in powder placed in orifice 17 and the along track 16, arrives at orifice 18, ignites the powder disposed on the walls of the straight part 14 of the cavity, and triggers the lighting of the wick 5.

    Le dispositif illustré en figure 2 présente de nombreux avantages par rapport à un retard pyrotechnique classique :

  • simplicité d'utilisation : il permet l'insertion facile de mèches 4 et 5 ; plusieurs retards peuvent simplement être montés en série ;
  • fiabilité : il est pratiquement insensible à l'humidité ou à une forte pluie ;
  • plage de réglage étendue : les durées de retard peuvent être choisies dans une très large plage de valeurs ; on peut atteindre en choisissant un pas extrêmement serré de la piste 15 des retards pouvant atteindre ou dépasser la minute ;
  • sécurité : l'allumage se propageant d'une partie à l'autre du dispositif par une piste protégée par le cylindre extérieur 17, il ne se produit pas de jet de flamme vers l'extérieur et le dispositif ne risque pas d'enflammer des dispositifs voisins ni de brûler un opérateur ;
  • retards multiples : comme on le verra ci-après, un dispositif selon l'invention peut permettre de sélectionner un retard parmi plusieurs retards prédéterminés.
  • The device illustrated in FIG. 2 has many advantages compared to a conventional pyrotechnic delay:
  • simplicity of use : it allows easy insertion of wicks 4 and 5; several delays can simply be connected in series;
  • reliability : it is practically insensitive to humidity or heavy rain;
  • extended setting range : delay times can be selected from a very wide range of values; delays which can reach or exceed one minute can be achieved by choosing an extremely tight step from track 15;
  • safety : the ignition propagating from one part to another of the device by a track protected by the external cylinder 17, there is no jet of flame towards the outside and the device does not risk igniting neighboring devices nor to burn an operator;
  • multiple delays : as will be seen below, a device according to the invention can make it possible to select a delay from among several predetermined delays.
  • La figure 3 représente une variante de réalisation du dispositif de la figure 2, constituant un troisième mode de réalisation de la présente invention. En figure 3, le dispositif comprend un cylindre interne 21 et un cylindre externe 22. La cavité interne est divisée en deux parties 23 et 24 par une cloison 25. Une piste rectiligne courte 26 s'étend entre des orifices 27 et 28 traversant les parois des parties de cavité 23 et 24.FIG. 3 represents an alternative embodiment of the device of FIG. 2, constituting a third mode of realization of the present invention. In Figure 3, the device comprises an internal cylinder 21 and an external cylinder 22. The cavity internal is divided into two parts 23 and 24 by a partition 25. A short rectilinear track 26 extends between orifices 27 and 28 passing through the walls of the cavity parts 23 and 24.

    Dans le mode de réalisation de la figure 3, si l'on veut encore raccourcir le retard entre la partie gauche et la partie droite du cylindre 21, on peut ouvrir la cloison 25. On arrive alors à une structure très similaire à celle du premier mode de réalisation de l'invention.In the embodiment of FIG. 3, if one still wants to shorten the delay between the left side and the right side of cylinder 21, the partition 25 can be opened. arrives at a structure very similar to that of the first embodiment of the invention.

    Un système de maintien/blocage des mèches différent de celui des figures 1 et 2 est également illustré en figure 3. Cette variante pourrait être utilisée dans les autres modes de réalisation de la présente invention. Comme le montre la figure 3, le tube externe 22 déborde de part et d'autre du tube interne 21 et comporte dans la partie en débordement une rainure annulaire 29 destinée à recevoir un disque 30 de blocage d'une mèche. Ce disque pourra avoir en vue en bout, une allure similaire à celle des figures 1 et 2. On pourra également choisir que le dispositif de la figure 3 présente des fentes plus importantes entre les languettes élémentaires, et que la partie centrale soit découpée. On pourra également choisir un disque en un matériau métallique souple. Selon une autre variante de la présente invention, non représentée, le système de maintien pourra être constitué de languettes de matière plastique moulée solidaires des extrémités du cylindre interne.A lock / lock system for wicks different from that of FIGS. 1 and 2 is also illustrated in FIG. 3. This variant could be used in other modes of realization of the present invention. As shown in the figure 3, the outer tube 22 overflows on either side of the inner tube 21 and has in the overhanging part an annular groove 29 intended to receive a disc 30 for blocking a wick. This disc may have in view at the end, a look similar to that of Figures 1 and 2. We can also choose that the Figure 3 device has larger slots between the elementary tabs, and that the central part is cut out. We can also choose a disc made of a material flexible metal. According to another variant of the present invention, not shown, the support system may be made up of molded plastic tabs ends of the inner cylinder.

    La figure 4 représente un quatrième mode de réalisation de la présente invention. La partie gauche de la figure comporte un dispositif similaire à celui de la figure 2 dans lequel de mêmes éléments ont été désignés par de mêmes références. La partie droite 14 de la cavité située à droite de la cloison 15 se prolonge en se divisant en plusieurs cylindres 31 à 34, dont chacun est destiné à recevoir une mèche 35 à 38.FIG. 4 represents a fourth embodiment of the present invention. The left side of the figure has a device similar to that of FIG. 2 in which same elements have been designated by the same references. The part right 14 of the cavity located on the right of the partition 15 extends by dividing into several cylinders 31 to 34, of which each is intended to receive a wick 35 to 38.

    Les figures 5A et 5B représentent en vue de côté et en vue de face un cinquième mode de réalisation de la présente invention. La partie gauche du dispositif de la figure 5A est similaire à celle de la figure 4. Du côté droit de la figure, le dispositif, au lieu de se diviser en plusieurs cylindres, s'évase en un éventail 41, sa face extrême comprenant un système 42 de blocage anti-retrait de plusieurs mèches que l'on peut insérer en parallèle.FIGS. 5A and 5B show in side view and in front view a fifth embodiment of this invention. The left part of the device of FIG. 5A is similar to that of figure 4. On the right side of the figure, the device, instead of dividing into several cylinders, flares in a fan 41, its end face comprising a system 42 of anti-removal lock of several wicks that can be inserted parallel.

    Ainsi, la présente invention fournit un dispositif de retard particulièrement simple, fiable, réglable et sûr. De plus, ce dispositif peut être de relativement faible coût, être fabriqué en grande série en matière plastique...Thus, the present invention provides a device for particularly simple, reliable, adjustable and safe delay. Moreover, this device can be relatively low cost, can be manufactured in large series in plastic ...

    La figure 6 représente un sixième mode de réalisation de la présente invention dans lequel un même dispositif pyrotechnique de retard peut, au choix de l'utilisateur, réaliser l'un de plusieurs retards prédéterminés.Figure 6 shows a sixth embodiment of the present invention in which the same pyrotechnic device delay may, at the option of the user, achieve one of several predetermined delays.

    Ce dispositif comprend un tube interne 50, un tube intermédiaire 60 et un tube externe 70.This device comprises an internal tube 50, a tube intermediate 60 and an outer tube 70.

    Le tube interne 50, comme le tube 1 de la figure 1, le tube 11 de la figure 2 ou le tube 21 de la figure 3 a ses parois internes revêtues d'un matériau très inflammable 2. Ce tube 50 est divisé en deux parties par une cloison interne 51. Il comprend des ouvertures traversantes 52 et 53 de part et d'autre de la cloison. The internal tube 50, like the tube 1 in FIG. 1, the tube 11 of figure 2 or the tube 21 of figure 3 has its walls internal coated with highly flammable material 2. This tube 50 is divided into two parts by an internal partition 51. It includes through openings 52 and 53 on either side of the partition.

    Le tube intermédiaire 60 est un tube sur la surface externe duquel sont formées plusieurs pistes 61, 62, 63, longitudinales dans l'exemple représenté, dont les extrémités comportent des ouvertures 61-1, 61-2, 62-1, 62-2 et 63-1, 63-2. Ces ouvertures traversent le tube 60.The intermediate tube 60 is a tube on the surface external of which several longitudinal tracks 61, 62, 63 are formed in the example shown, the ends of which have openings 61-1, 61-2, 62-1, 62-2 and 63-1, 63-2. These openings pass through the tube 60.

    Enfin, le dispositif comprend un tube externe 70 de protection.Finally, the device comprises an external tube 70 of protection.

    Le tube externe 70 est monté fixe par rapport au tube intermédiaire 60 qui peut tourner par rapport au tube interne 50. Divers moyens pourront être prévus pour que, après montage, le tube interne puisse tourner par rapport au tube intermédiaire tout en étant maintenu axialement.The outer tube 70 is mounted fixed relative to the tube intermediate 60 which can rotate relative to the internal tube 50. Various means may be provided so that, after assembly, the inner tube can rotate relative to the intermediate tube while being held axially.

    Quand les fentes 52, 53 sont, par exemple, en regard des ouvertures 61-1, 61-2, si une mèche est allumée du côté de l'ouverture 61-1, l'allumage est transmis avec un retard déterminé par la piste 61 vers l'ouverture 61-2. En faisant tourner le tube interne par rapport au tube intermédiaire, on peut sélectionner l'un des retards 62 ou 63 ou un autre retard non représenté disposé sur la face non visible du cylindre intermédiaire.When the slots 52, 53 are, for example, opposite openings 61-1, 61-2, if a wick is lit on the side of opening 61-1, ignition is delayed determined by runway 61 towards opening 61-2. Doing turn the inner tube relative to the intermediate tube, we can select one of the delays 62 or 63 or another delay not shown arranged on the non-visible face of the intermediate cylinder.

    Un premier repère 54 est formé sur le bord externe du tube interne, qui est par exemple légèrement plus long que le tube intermédiaire, pour faciliter sa préhension et sa mise en rotation. Le tube intermédiaire est muni de seconds repères, de préférence à ses deux extrémités, respectivement 61-0, 62-0 et 63-0. Par tout moyen, on peut indiquer en regard de ces repères, la durée du retard correspondant. On pourra par exemple inscrire les durées des retards ou utiliser divers codes de couleurs.A first mark 54 is formed on the outer edge of the inner tube, which is for example slightly longer than the intermediate tube, to facilitate its gripping and setting rotation. The intermediate tube is provided with second marks, preferably at its two ends, respectively 61-0, 62-0 and 63-0. By any means, we can indicate next to these benchmarks, the duration of the corresponding delay. We can for example register delay times or use various color codes.

    Selon une variante de l'invention, illustrée en figure 6, une piste 65 s'étend entre les extrémités des pistes 61, 62, 63 du côté opposé au côté où se produit normalement l'allumage. Ainsi, un fois qu'une piste a été allumée et a joué son effet de retard, l'allumage se propage vers les autres pistes et la poudre qu'elles contiennent est brûlée, ce qui évite que le dispositif, une fois utilisé, puisse présenter un danger quelconque. According to a variant of the invention, illustrated in figure 6, a track 65 extends between the ends of the tracks 61, 62, 63 on the side opposite the side where ignition normally occurs. So, once a track has been lit and has played its delay, ignition spreads to other tracks and powder they contain is burnt, which prevents the device, once used, may present any danger.

    La figure 7 représente une variante du sixième mode de réalisation de la présente invention. Au lieu de prévoir dans le tube interne 50 des rainures 52, 53 de part et d'autre de la cloison 51, on prévoit des ouvertures appariées 56, 57, 58 destinées à coopérer avec des ouvertures correspondantes du tube intermédiaire. Les ouvertures du tube intermédiaire peuvent être celles représentées en figure 6. Ce peut aussi être les ouvertures d'une piste hélicoïdale 71 représentée en figure 7. Dans ce mode de réalisation, il faudra prévoir un nombre de repères identiques 59 du côté du tube interne et 72 du côté du tube externe. Les repères devront être identifiés. De préférence ils seront identifiés par de mêmes couleurs ou de mêmes indications.FIG. 7 represents a variant of the sixth mode of realization of the present invention. Instead of providing in the internal tube 50 of the grooves 52, 53 on either side of the partition 51, paired openings 56, 57, 58 are provided intended to cooperate with corresponding openings of the tube intermediate. The openings in the intermediate tube can be those represented in figure 6. It can also be the openings of a helical track 71 shown in FIG. 7. In this embodiment, it will be necessary to provide a number of identical marks 59 on the side of the inner tube and 72 on the side of the outer tube. The benchmarks must be identified. Preferably they will identified by the same colors or the same indications.

    A titre de variante, dans le cadre de la figure 7, on n'a pas représenté de tube de protection externe. En effet, ce tube pourrait être remplacé par un vernis ou un trempage de la pièce du cylindre intermédiaire dans une substance en matière plastique susceptible de polymériser.As a variant, in the context of FIG. 7, we did not show an external protective tube. Indeed, this tube could be replaced with varnish or soaking the intermediate cylinder part in a material substance plastic likely to polymerize.

    Ce sixième mode de réalisation de la présente invention peut paraítre plus complexe que les modes de réalisation décrits précédemment. Toutefois, le coût de fabrication d'un tel dispositif sera plus faible que les autres car il pourrait être fabriqué en très grande série, un même dispositif pouvant être utilisé pour réaliser différents retards. En outre, il ne se posera plus, pour l'utilisateur, le problème d'avoir à stocker des gammes de dispositifs de retard.This sixth embodiment of the present invention may appear more complex than the embodiments described previously. However, the cost of manufacturing such a device will be weaker than the others because it could be manufactured in very large series, the same device can be used to achieve various delays. Besides, it will no longer arise, for the user, the problem of having to store ranges of delay devices.

    Bien entendu, la présente invention est susceptible de diverses variantes et modifications qui apparaítront à l'homme de l'art. En particulier, on peut, dans certain cas, prévoir sur un même dispositif plusieurs pistes dont l'une ou l'autre peut être remplie de matière inflammable, de sorte que, avec une même pièce en matière plastique, on peut réaliser plusieurs retards. De plus les divers mode de réalisation décrits peuvent être combinés ; par exemple les systèmes multiraccord des figures 4 et 5 peuvent être adaptés au premier mode de réalisation de l'invention.Of course, the present invention is capable of various variants and modifications which will appear to the man of art. In particular, it is possible, in certain cases, to provide on a same device several tracks of which one or the other can be filled with flammable material, so that with one piece in plastic, there can be several delays. Moreover the various embodiments described can be combined; for example the multi-connection systems of FIGS. 4 and 5 can be adapted to the first embodiment of the invention.

    Claims (10)

    Dispositif pyrotechnique de connexion et de retard entre mèches et/ou entre allumeur et mèches, caractérisé en ce qu'il comprend : une cavité divisée en deux parties (6, 7 ; 13, 14 ; 23, 24) dont les parois internes (2) sont revêtues d'un matériau très inflammable ; des moyens (3 ; 30) de blocage d'une ou plusieurs mèches dans chacune des parties ; et des moyens de communication entre les deux parties. Pyrotechnic device for connection and delay between wicks and / or between igniter and wicks, characterized in that it comprises: a cavity divided into two parts (6, 7; 13, 14; 23, 24) whose internal walls (2) are coated with a highly flammable material; means (3; 30) for blocking one or more wicks in each of the parts; and means of communication between the two parties. Dispositif pyrotechnique selon la revendication 1, caractérisé en ce que les deux parties (13, 14 ; 23, 24) sont séparées par une cloison (15 ; 25) et en ce que les moyens de communication comprennent une piste (16 ; 26), contenant un matériau brûlant lentement et régulièrement, s'étendant à l'extérieur des parois de la cavité entre des orifices (17, 18 ; 27, 28) communiquant avec chacune des deux parties de la cavité.Pyrotechnic device according to claim 1, characterized in that the two parts (13, 14; 23, 24) are separated by a partition (15; 25) and in that the means for communication include a track (16; 26), containing material burning slowly and steadily, extending outside walls of the cavity between orifices (17, 18; 27, 28) communicating with each of the two parts of the cavity. Dispositif pyrotechnique selon la revendication 2, caractérisé en ce qu'il comprend : un premier cylindre creux (11) dont la cavité interne est divisée en deux parties (13, 14 ; 23, 24) par une cloison (15 ; 25), et dont la paroi externe comporte une piste (16 ; 26) qui communique par des orifices (17, 18 ; 27, 28) avec lesdites parties ; et un deuxième cylindre creux (12) dont le diamètre interne correspond au diamètre externe du premier cylindre creux et dans lequel le premier cylindre est inséré. Pyrotechnic device according to claim 2, characterized in that it comprises: a first hollow cylinder (11) whose internal cavity is divided into two parts (13, 14; 23, 24) by a partition (15; 25), and whose external wall comprises a track (16; 26) which communicates by orifices (17, 18; 27, 28) with said parts; and a second hollow cylinder (12) whose internal diameter corresponds to the external diameter of the first hollow cylinder and into which the first cylinder is inserted. Dispositif pyrotechnique selon la revendication 2, caractérisé en ce qu'il comprend : un cylindre interne creux (50) dont la cavité interne est divisée en deux parties par une cloison (51) et dont la paroi externe comporte des ouvertures (52, 53 ; 56, 57, 58) ; et un cylindre intermédiaire creux (60) susceptible d'être monté coaxialement et à rotation à l'extérieur du cylindre interne, la paroi externe du cylindre intermédiaire comportant des pistes (61, 62, 63 ; 71) dont les extrémités communiquent par des orifices avec les ouvertures du cylindre intérieur, quand les cylindres sont convenablement orientés en rotation. Pyrotechnic device according to claim 2, characterized in that it comprises: a hollow internal cylinder (50), the internal cavity of which is divided into two parts by a partition (51) and the external wall of which has openings (52, 53; 56, 57, 58); and a hollow intermediate cylinder (60) capable of being mounted coaxially and rotatably outside the internal cylinder, the external wall of the intermediate cylinder having tracks (61, 62, 63; 71) the ends of which communicate with orifices with the openings of the inner cylinder, when the cylinders are suitably oriented in rotation. Dispositif pyrotechnique selon la revendication 3 ou 4, caractérisé en ce que ladite piste (16 ; 71) s'étend hélicoïdalement.Pyrotechnic device according to claim 3 or 4, characterized in that said track (16; 71) extends helically. Dispositif pyrotechnique selon la revendication 3 ou 4, caractérisé en ce que la ou lesdites pistes (26 ; 61, 62, 63) s'étendent de façon rectiligne.Pyrotechnic device according to claim 3 or 4, characterized in that the said track or tracks (26; 61, 62, 63) extend in a straight line. Dispositif pyrotechnique selon l'une quelconque des revendications 3 à 6, caractérisé en ce que la ou lesdites pistes (16 ; 26) sont remplies d'une poudre inflammable tassée.Pyrotechnic device according to any one of Claims 3 to 6, characterized in that the said track or tracks (16; 26) are filled with a packed flammable powder. Dispositif pyrotechnique selon la revendication 3 caractérisé en ce que, d'un côté, le premier cylindre se subdivise en plusieurs tubes (31, 34).Pyrotechnic device according to claim 3 characterized in that, on one side, the first cylinder is subdivided in several tubes (31, 34). Dispositif pyrotechnique selon la revendication 3 caractérisé en ce que, d'un côté, le premier cylindre s'évase en éventail (41).Pyrotechnic device according to claim 3 characterized in that, on one side, the first cylinder flares out fan (41). Dispositif pyrotechnique selon l'une quelconque des revendications 1 à 8, caractérisé en ce que les moyens de blocage (3 ; 30 ; 42) comprennent des languettes en un matériau souple mais relativement solide, s'étendant sensiblement perpendiculairement à des ouvertures d'insertion de mèches, et susceptibles de se déformer vers l'intérieur lors de l'insertion d'une mèche pour bloquer une extraction de la mèche.Pyrotechnic device according to any one of Claims 1 to 8, characterized in that the blocking means (3; 30; 42) include tongues of flexible material but relatively solid, extending substantially perpendicular to wick insertion openings, which may warp inward when inserting a drill bit to block an extraction of the wick.
    EP00410101A 1999-08-24 2000-08-23 Pyrotechnic device for connection and delay Expired - Lifetime EP1079200B9 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    FR9910880 1999-08-24
    FR9910880A FR2797947B1 (en) 1999-08-24 1999-08-24 PYROTECHNIC DEVICE FOR CONNECTION AND DELAY

    Publications (3)

    Publication Number Publication Date
    EP1079200A1 true EP1079200A1 (en) 2001-02-28
    EP1079200B1 EP1079200B1 (en) 2004-10-13
    EP1079200B9 EP1079200B9 (en) 2005-01-05

    Family

    ID=9549402

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP00410101A Expired - Lifetime EP1079200B9 (en) 1999-08-24 2000-08-23 Pyrotechnic device for connection and delay

    Country Status (6)

    Country Link
    US (1) US6499405B1 (en)
    EP (1) EP1079200B9 (en)
    AT (1) ATE279710T1 (en)
    DE (1) DE60014810T2 (en)
    ES (1) ES2228432T3 (en)
    FR (1) FR2797947B1 (en)

    Cited By (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    FR2839146A1 (en) 2002-04-29 2003-10-31 Francesco Ambrico PYROTECHNIC DELAY DEVICE
    WO2014012816A1 (en) * 2012-07-18 2014-01-23 Rheinmetall Waffe Munition Gmbh, Patente Mechanically adjustable delay element
    WO2022069784A1 (en) 2020-10-02 2022-04-07 Garcia Gamon Anton Fernando Ignition arrangement for multiple pyrotechnic articles

    Families Citing this family (11)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US20030200891A1 (en) * 2002-04-25 2003-10-30 Yu Peter Sung Yan Fireworks fuse connector
    ITGR20020002A1 (en) * 2002-06-25 2003-12-29 Carlo Monetti DEVICES FOR THE PRODUCTION OF TIMED PYRICAL CHAINS WITH THE USE OF SPOOLS OR LONG COMBUSTION WEDDING BUCKETS OF LUN
    US6899033B2 (en) * 2003-04-28 2005-05-31 Jake's Fireworks, Inc. Firecracker packaging
    US6916110B2 (en) * 2003-05-29 2005-07-12 Rene C. Batiste Flame simulating devices for use with lights and method thereof
    DE20310900U1 (en) * 2003-07-15 2003-10-02 Voigt Andreas Arrangement for igniting and / or firing pyrotechnic articles and / or sets
    ZA200703938B (en) * 2007-05-16 2009-07-29 Beijing Auxin Chemical Technol Three-way connector block
    DE102007049070B4 (en) * 2007-10-12 2010-04-08 Weco Pyrotechnische Fabrik Gmbh Channel-like device for connecting at least two pyrotechnic lines and fireworks arrangement
    WO2009076682A2 (en) * 2007-12-03 2009-06-18 Master Blaster Proprietary Limited Multi-port transmission line connector
    CN102927854A (en) * 2012-11-07 2013-02-13 浏阳市达浒花炮艺术焰火燃放集团有限公司 Environment-friendly inner barrel for fireworks
    DE102013012363B3 (en) * 2013-07-25 2014-06-05 Marc Speer Coated device for generating pyrotechnic effects, used for e.g. ignition of light images, has substrate that is provided with pyrotechnic layers equipped with respective pyrotechnic ignition zone and pyrotechnic effect area
    CN105387777B (en) * 2015-10-30 2017-09-05 山东大学 A kind of photoface exploision spaced loading joint-cutting pipe

    Citations (4)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    FR353200A (en) * 1905-03-15 1905-09-05 Harold Irwin Warning
    US2548946A (en) * 1947-11-01 1951-04-17 Kilgore Mfg Co Pyrotechnic device
    US4166418A (en) * 1977-05-23 1979-09-04 Austin Powder Company Time delay primer and method of making same
    DE19514122A1 (en) * 1994-04-27 1995-11-02 Junghans Gmbh Geb Appts. for detonation or explosion of objects at different locations

    Family Cites Families (13)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US3169480A (en) * 1962-05-01 1965-02-16 Commercial Solvents Corp Safety device for detonator cord
    US3368485A (en) * 1966-04-08 1968-02-13 Robert L. Klotz Nonexplosive detonating fuse directional interrupter
    US3460477A (en) * 1967-12-26 1969-08-12 Explosive Tech One-way detonation transfer device and assembly
    US4423682A (en) * 1981-10-13 1984-01-03 Mcdonnell Douglas Corporation One-way explosive transfer assembly
    DE3614204A1 (en) * 1986-04-26 1987-10-29 Dynamit Nobel Ag Explosive detonators
    US4953464A (en) * 1987-07-13 1990-09-04 Atlas Powder Company Multi-directional signal transmission in a blast initiation system
    US5086702A (en) * 1990-04-12 1992-02-11 Atlas Powder Company Modular blasting system
    US5070789A (en) * 1990-06-27 1991-12-10 Cxa Ltd./Cxa Ltee Electric exploding bridge wire initiators
    WO1993011089A1 (en) * 1991-11-27 1993-06-10 Hadden William C Surface-initiating deflagrating material
    US5192828A (en) * 1992-03-13 1993-03-09 The Ensign-Bickford Company Detonating cord and blasting cap connector block having a resilient free end cord latch
    DE69531920T2 (en) * 1994-08-31 2004-08-19 Halliburton Energy Services, Inc., Dallas Device for connecting perforators in the borehole
    ZA958348B (en) * 1994-10-21 1996-07-12 Ensign Bickford Co Universal isolation member and non-electric detonator cap including the same
    SE505912C2 (en) * 1995-12-20 1997-10-20 Nitro Nobel Ab Pyrotechnic charge for detonators

    Patent Citations (4)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    FR353200A (en) * 1905-03-15 1905-09-05 Harold Irwin Warning
    US2548946A (en) * 1947-11-01 1951-04-17 Kilgore Mfg Co Pyrotechnic device
    US4166418A (en) * 1977-05-23 1979-09-04 Austin Powder Company Time delay primer and method of making same
    DE19514122A1 (en) * 1994-04-27 1995-11-02 Junghans Gmbh Geb Appts. for detonation or explosion of objects at different locations

    Cited By (5)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    FR2839146A1 (en) 2002-04-29 2003-10-31 Francesco Ambrico PYROTECHNIC DELAY DEVICE
    WO2003095934A1 (en) * 2002-04-29 2003-11-20 Francesco Ambrico Pyrotechnic device with ignition delay
    AU2003249387B2 (en) * 2002-04-29 2008-11-06 Francesco Ambrico Pyrotechnic device with ignition delay
    WO2014012816A1 (en) * 2012-07-18 2014-01-23 Rheinmetall Waffe Munition Gmbh, Patente Mechanically adjustable delay element
    WO2022069784A1 (en) 2020-10-02 2022-04-07 Garcia Gamon Anton Fernando Ignition arrangement for multiple pyrotechnic articles

    Also Published As

    Publication number Publication date
    FR2797947A1 (en) 2001-03-02
    DE60014810T2 (en) 2006-03-09
    EP1079200B1 (en) 2004-10-13
    ATE279710T1 (en) 2004-10-15
    US6499405B1 (en) 2002-12-31
    EP1079200B9 (en) 2005-01-05
    ES2228432T3 (en) 2005-04-16
    FR2797947B1 (en) 2001-11-16
    DE60014810D1 (en) 2004-11-18

    Similar Documents

    Publication Publication Date Title
    EP1079200B9 (en) Pyrotechnic device for connection and delay
    BE1022467B1 (en) CYLINDRICAL LABYRINTH
    EP3114424B1 (en) Decoy cartridge for aircraft
    EP3860737A1 (en) Accessory of light-sabre type
    EP0105001B1 (en) Safety device with a rotatable housing for a spinning projectile
    FR2731685A3 (en) PACKED ELECTRIC LAMP
    EP2482027A1 (en) Weaponry and security device for a pyrotechnic chain of a missile
    FR2839146A1 (en) PYROTECHNIC DELAY DEVICE
    CA1245506A (en) Projectile fuse
    FR2582428A1 (en) BURNER SYSTEM COMPRISING A SIGNALING DEVICE
    EP0952423B1 (en) Decoration panel for a firework
    EP0624773B1 (en) Firework having means to separate several succesively ignited charges from casings
    FR2501360A1 (en) CARTRIDGE WITH PYROTECHNIC ACTUATION OF USEFUL LOAD EXPLOSIVE AFTER REBOUND
    EP3660441A1 (en) Device for deploying a deployable element, in particular a handle, for a weapon system
    FR2863351A1 (en) Firework display set-piece has series of mortar batteries linked by single fuse cord so they are ignited in sequence without electrical connections
    EP0098189B1 (en) Pyrotechnic device having manually initiated fuse arrangements, e.g. for signalling purposes
    FR2610085A1 (en) Infrared emitter, especially for use as a decoy, and infrared decoy-launching cartridge for using it
    FR2866702A1 (en) Pyrotechnic blasting chain connecting insert for firework, has elongated body with front end whose outer dimensions are homologous to that of inner cylindrical surface of cavity that forms igniter receptacle of nozzle
    FR2875003A1 (en) Amusement firework, has tubes cooperating with firework pieces having fuses whose lengths are chosen in desired manner in order to introduce them into any tube to define sequence and time for firing pieces
    EP3391365B1 (en) Element for constructing a harmonica module
    EP0685059B1 (en) Safety device for locking a striker, and methods for fabricating such device
    EP1524489A1 (en) Ignition device and multi-mode shaped charge which uses such an ignition device
    WO1995027856A1 (en) Dowel sleeve for a screw or the like
    FR2889877A1 (en) Rapid bracelet and watch fastening device for watch industry, has female and male elements joining to form removable assembling units, and sliding sheaths with stop units whose angular position limits bracelet rotation while locking
    FR2689256A1 (en) Watch crown.

    Legal Events

    Date Code Title Description
    PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

    Free format text: ORIGINAL CODE: 0009012

    AK Designated contracting states

    Kind code of ref document: A1

    Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

    AX Request for extension of the european patent

    Free format text: AL;LT;LV;MK;RO;SI

    AKX Designation fees paid
    RBV Designated contracting states (corrected)

    Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

    REG Reference to a national code

    Ref country code: DE

    Ref legal event code: 8566

    17P Request for examination filed

    Effective date: 20010814

    RBV Designated contracting states (corrected)

    Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

    GRAP Despatch of communication of intention to grant a patent

    Free format text: ORIGINAL CODE: EPIDOSNIGR1

    GRAS Grant fee paid

    Free format text: ORIGINAL CODE: EPIDOSNIGR3

    GRAA (expected) grant

    Free format text: ORIGINAL CODE: 0009210

    AK Designated contracting states

    Kind code of ref document: B1

    Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: IE

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20041013

    Ref country code: AT

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20041013

    Ref country code: NL

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20041013

    Ref country code: FI

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20041013

    Ref country code: GB

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20041013

    REG Reference to a national code

    Ref country code: GB

    Ref legal event code: FG4D

    Free format text: NOT ENGLISH

    REG Reference to a national code

    Ref country code: CH

    Ref legal event code: EP

    REG Reference to a national code

    Ref country code: IE

    Ref legal event code: FG4D

    Free format text: FRENCH

    REF Corresponds to:

    Ref document number: 60014810

    Country of ref document: DE

    Date of ref document: 20041118

    Kind code of ref document: P

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: GR

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20050113

    Ref country code: DK

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20050113

    Ref country code: SE

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20050113

    NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
    REG Reference to a national code

    Ref country code: ES

    Ref legal event code: FG2A

    Ref document number: 2228432

    Country of ref document: ES

    Kind code of ref document: T3

    GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

    Effective date: 20041013

    REG Reference to a national code

    Ref country code: IE

    Ref legal event code: FD4D

    PLBE No opposition filed within time limit

    Free format text: ORIGINAL CODE: 0009261

    STAA Information on the status of an ep patent application or granted ep patent

    Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: LU

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20050823

    Ref country code: CY

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20050823

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: LI

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20050831

    Ref country code: CH

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20050831

    Ref country code: BE

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20050831

    Ref country code: MC

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20050831

    26N No opposition filed

    Effective date: 20050714

    REG Reference to a national code

    Ref country code: CH

    Ref legal event code: PL

    BERE Be: lapsed

    Owner name: *AMBRICO FRANCESCO

    Effective date: 20050831

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: PT

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20050313

    PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

    Ref country code: DE

    Payment date: 20110810

    Year of fee payment: 12

    Ref country code: ES

    Payment date: 20110830

    Year of fee payment: 12

    PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

    Ref country code: IT

    Payment date: 20110822

    Year of fee payment: 12

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: IT

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20120823

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: DE

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20130301

    REG Reference to a national code

    Ref country code: DE

    Ref legal event code: R119

    Ref document number: 60014810

    Country of ref document: DE

    Effective date: 20130301

    REG Reference to a national code

    Ref country code: ES

    Ref legal event code: FD2A

    Effective date: 20131022

    PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

    Ref country code: FR

    Payment date: 20130821

    Year of fee payment: 14

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: ES

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20120824

    REG Reference to a national code

    Ref country code: FR

    Ref legal event code: ST

    Effective date: 20150430

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: FR

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20140901