EP1961458A2 - Fire extinguisher and its use - Google Patents

Fire extinguisher and its use Download PDF

Info

Publication number
EP1961458A2
EP1961458A2 EP08151614A EP08151614A EP1961458A2 EP 1961458 A2 EP1961458 A2 EP 1961458A2 EP 08151614 A EP08151614 A EP 08151614A EP 08151614 A EP08151614 A EP 08151614A EP 1961458 A2 EP1961458 A2 EP 1961458A2
Authority
EP
European Patent Office
Prior art keywords
cartridge
tube
extinguishing agent
propellant
extinguisher
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
EP08151614A
Other languages
German (de)
French (fr)
Other versions
EP1961458B1 (en
EP1961458A3 (en
Inventor
Jean-Charles Wibo
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.)
Delta Extinctors
Original Assignee
Delta Extinctors
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 Delta Extinctors filed Critical Delta Extinctors
Priority to PL08151614T priority Critical patent/PL1961458T3/en
Publication of EP1961458A2 publication Critical patent/EP1961458A2/en
Publication of EP1961458A3 publication Critical patent/EP1961458A3/en
Application granted granted Critical
Publication of EP1961458B1 publication Critical patent/EP1961458B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C13/00—Portable extinguishers which are permanently pressurised or pressurised immediately before use
    • A62C13/006—Portable extinguishers which are permanently pressurised or pressurised immediately before use for the propulsion of extinguishing powder
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C13/00—Portable extinguishers which are permanently pressurised or pressurised immediately before use
    • A62C13/66—Portable extinguishers which are permanently pressurised or pressurised immediately before use with extinguishing material and pressure gas being stored in separate containers
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C13/00—Portable extinguishers which are permanently pressurised or pressurised immediately before use
    • A62C13/66—Portable extinguishers which are permanently pressurised or pressurised immediately before use with extinguishing material and pressure gas being stored in separate containers
    • A62C13/72—Portable extinguishers which are permanently pressurised or pressurised immediately before use with extinguishing material and pressure gas being stored in separate containers characterised by releasing means operating essentially simultaneously on both containers
    • A62C13/74—Portable extinguishers which are permanently pressurised or pressurised immediately before use with extinguishing material and pressure gas being stored in separate containers characterised by releasing means operating essentially simultaneously on both containers the pressure gas container being pierced or broken

Definitions

  • the present invention relates to a fire extinguisher apparatus in use for extinguishing a fire. More particularly, the invention relates to a fire extinguisher apparatus of the auxiliary pressure type, wherein a cartridge containing pressurized gas is used for pressurizing the fire extinguisher.
  • An extinguisher contains an extinguishing agent that can be thrown onto a fire by the action of internal pressure.
  • This pressure can be provided by a permanent pre-press (the permanent pressure system) or by the release of an auxiliary gas (very often carbon dioxide) contained in a cartridge (the auxiliary pressure system).
  • the extinguisher is provided with a gas cartridge, generally CO 2, totally hermetic.
  • a gas cartridge generally CO 2
  • the fact of enclosing the propellant in a cartridge makes it possible to avoid leaks, but it is necessary to "strike” the cartridge (to pierce it) to be able to use it: the gas is then released from the cartridge and fills the body of the extinguisher containing the extinguishing agent.
  • the extinguisher In an auxiliary pressure system the extinguisher is not under pressure before use, so there is no risk of leakage in handling and storage.
  • the pressure contained in the cartridge is discharged into the body of the apparatus by perforation thereof.
  • the pressure then relaxes in the body of the apparatus to stabilize at about 15 bar. It is a guarantee of having the necessary pressure for optimum operation even after long storage.
  • the apparatus does not require as control manometer is no pressure inside of the bottle before percussion of the cartridge CO2. This technique is therefore ideal for the private market. It is also better suited to large-scale distribution and automotive applications where the risks of shocks and vibrations exist, which could in the case of the permanent pressure system have unfortunate consequences (breakage of the valve for example and leakage of powder).
  • auxiliary pressure type fire extinguishers known in the prior art is the fact that the homogenization of the gas and the extinguishing agent, once the gas is released from the cartridge and fills the body containing the extinguishing agent, is not always optimal. This can result in leftover extinguishing agent (powders) piling up in the fire extinguisher. The capacity of the fire extinguisher is thus reduced.
  • the object of the present invention is to improve the operation of a fire extinguisher apparatus, preferably an auxiliary pressure extinguisher for extinguishing agent of the "dry powder" type. More particularly, the invention aims to improve the operation of a fire extinguisher by optimizing the drying out of the extinguishing powder and the homogenization of the propellant and the powder.
  • the present invention also aims to provide an extinguisher apparatus in which the pressurization of the extinguisher is improved, and in particular accelerated.
  • the invention relates to a fire extinguisher apparatus, and in particular a fire extinguisher of the auxiliary pressure type.
  • the apparatus is characterized in that the end (s) of the at least one ejection channel (s) are housed in one or more cells formed by a deflector (s). ) located on the outer wall of said tube.
  • the apparatus is characterized in that the cartridge is essentially cylindrical and provided with a neck containing a cover provided for the perforation of the cartridge.
  • the apparatus is characterized in that cartridge is placed upside down in said central tube with its neck and its lid oriented towards the base of the body.
  • the apparatus is characterized in that the central tube is divided into an upper part and a lower part whose outer diameter is smaller than the outer diameter of the upper part of said tube.
  • the cartridge is mounted within the upper portion of said central tube, and the outer diameter of said cartridge is smaller than the inner diameter of said upper portion of the tube, so that a circumferential gap is created between said cartridge and the upper part of said tube.
  • said apparatus is characterized in that said lower centering device is provided in the upper part of said central tube at the neck of said cartridge.
  • the apparatus is characterized in that the one or more propellant gas ejection channels are provided at a height between the lower half height and the lower third quarter of the internal height of said body.
  • said ejection channel or channels are directed downwards and pass from the inside of the central tube to the core of the powder mass.
  • the apparatus according to the invention is preferably characterized in that said upper centralizer is composed of a cylindrical chamber at the base of which is mounted a holding ring containing openings for the passage of the extinguishing agent.
  • the invention relates to a fire extinguishing method in which preferably an extinguisher apparatus according to the invention is implemented.
  • the process is characterized in that the propellant is expelled at the outlet of the cartridge into the extinguishing agent through one or more ejection channels passing through the transverse wall of the central tube and directed downwards, the gas being propelled at an angle of at least 30 ° with respect to the ejection direction by means of one or more deflectors.
  • the method is characterized in that the propellant gas is expelled at the outlet of the cartridge at a height between the lower half height and the lower third quarter of the internal height of the body of the fire extinguisher apparatus.
  • the mixture of the propellant and extinguishing agent enters the interior of the central tube through the base of said tube and is transported inside the central tube along said cartridge towards the extinguisher head.
  • the expulsion of the propellant and the penetration into the central tube of the mixture of propellant and extinguishing agent are preferably spatially separated.
  • the pressurization of said extinguisher and the emptying of the extinguishing agent are carried out simultaneously. According to another embodiment, the pressurization of said extinguisher and the emptying of the extinguishing agent are carried out consecutively.
  • the operating principle of this device is as follows.
  • the propellant gas contained in the cartridge is released precipitately into the body (the bottle) of the extinguisher and directly into the mass of the extinguishing powder by one or more ejection channels placed suitably in one or more cells formed by one or more deflectors along the central tube.
  • This action aims to detach the powder contained in the bottle to form a homogeneous mixture of propellant and powder.
  • the opening of the fire extinguisher head (the shut-off valve) then allows the evacuation of the extinguishing powder.
  • the propellant is expelled at the outlet of the cartridge directly into the mass of extinguishing powder.
  • the propulsion of gas into the powder can be carried out by one or more ejection channels. Propulsion of the gas into the powder can be carried out at different levels as long as it is in the powder mass.
  • the ejection channel or channels are preferably provided at a height between the lower half height and the lower third quarter of the internal height of the body of the fire extinguisher.
  • the ejection channel (s) are also preferably directed downwards and pass from the inside of the central tube to the core of the powder mass.
  • the end of the ejection channel or channels are housed in one or more cells formed by one or more baffles located on the outer wall of the central tube.
  • the present invention therefore makes it possible to considerably reduce the charge of the powder residue after emptying it at once, in accordance with the requirements of the EN3 standard (applicable to "portable fire extinguishers") for which the residual charge for this type of powder is currently not more than 10% of the powder mass initially contained in the fire extinguisher.
  • the propellant gas enters directly into the extinguishing powder at the outlet of the cartridge, while the mixture of the propellant and the extinguishing agent enters the central tube at the lower end of said tube, and is transported inside the central tube along said cartridge towards the extinguisher head.
  • the output of the propellant gas from the cartridge and the entry of the mixture of gas and powder are therefore carried out at different levels.
  • the propellant must not flow through the central tube before being discharged into the mass of extinguishing powder. This results in a saving of time: the gas is released more quickly in the extinguishing powder, homogenization of the propellant and the powder is accelerated, and the pressurization of the fire extinguisher is more quickly obtained.
  • An auxiliary pressure type fire extinguisher generally consists of a body, preferably a metal cylinder, a valve (also known as a fire extinguisher or stopcock), a central tube and a cartridge. gas.
  • Portable fire extinguishers are equipped with a handle to carry the fire extinguisher and to strike the cartridge.
  • the terms "extinguisher” or “fire extinguisher” are used as synonyms.
  • the propulsion of the gas contained in the cartridge and the control of the apparatus have been improved by introducing operating elements at the outlet of the cartridge and the head of the extinguisher.
  • the apparatus has been improved so that the ejection of the propellant gas into the bottle is confronted by means of one or more ejectors housed in one or more cells formed by one or more deflectors.
  • This or these baffles are used to direct the propellant in the powder mass and allow better homogenization of the gas and extinguishing agent and thus a better de-packing thereof.
  • FIG. 1 a fire extinguisher 1 according to a particular embodiment of the present invention is illustrated.
  • the figures 2 , 3 and 4 , 5A and 5B schematically represent the operation of an apparatus 1 according to a particular embodiment of the present invention.
  • This upper part of the apparatus i.e. the elements of the valve 3 is described below.
  • This upper part or valve 3 is composed of the valve body 24 comprising a control lever 28, a security 29, a seal 30, a rod 35 and an upper centering device 18.
  • the valve body 24 is designed to receive all the elements making up the valve 3.
  • the valve body 24 mainly comprises a central channel (bore) 27 intended to receive the rod (or slide) 35, and another channel (bore ) 26 is generally perpendicular to the first for the exit passage of the extinguishing agent 6.
  • This channel 26 is also called drain channel or outlet channel 26 of the extinguishing agent.
  • the valve body 24, in this case, is fixed to the bottle 2 by screwing and the sealing of these two parts is provided by an o-ring type head seal 31.
  • the apparatus according to the present invention also contains a lever 28.
  • the lever 28 is connected to the valve body 24 by an axis 25. The action of the lever 28 first allows the pressurization of the extinguisher by perforation of the cartridge. 5, and then this same action authorizes the expulsion in one blow or intermittently of the extinguishing agent 6.
  • the rod or drawer 35 of an apparatus 1 is the central element of the valve 3.
  • the rod 35 consists of a body, three o-ring type seals, 21, 22, 23, and 'a return spring 20.
  • the upper seal 21 seals the central channel 27 beyond the outlet channel 26 of the extinguishing agent.
  • the central seal 22 seals in front of this outlet channel 26.
  • the lower seal 23 seals the chamber containing the return spring 20.
  • the action on the control lever 28 allows the displacement of the rod 35 in the central channel 27. This movement releases the central seal 22 of its housing and allows the expulsion of the extinguishing agent 6 through the drain channel 26.
  • the return spring 20 allows the rod 35 to resume its position initial as soon as the action on the lever 28 is canceled.
  • the upper centralizer 18 is composed of a chamber and a retaining ring 19.
  • the upper centering chamber is intended to receive the return spring 20 of the rod.
  • the retaining ring 19 serves as support for this return spring 20, and centering of the rod 35 with respect to the central channel 27.
  • This ring 19 comprises openings (or holes) 36 for the passage of the agent fire extinguisher 6.
  • the other elements of the valve 3 of the apparatus 1 comprise a security 29 and a seal 30.
  • the security 29 is composed of a cam and a ring. This assembly is intended to protect all actions on the lever 28 and is protected by a tamperproof seal. An energetic and perpendicular traction on the bottle 2 on the ring drives the cam to the outside of the valve 3. During this operation the cam splits the seal 30 and switches the lever 28: this action allows the perforation of the cartridge (5) and the pressurization of the fire extinguisher 1. This action, also called "pre-impact", is illustrated in figures 2 and 3 .
  • the tamperproof seal 30 is a control element allowing to instantly visualize whether extinguisher 1 has been used or not. This element 30 can be removed or removed only by breaking it. It is fractured during the extraction of security 29.
  • the lower or internal part of the apparatus 1 comprises a bottle 2 having a cylindrical wall and a bottom 44 of curved shape.
  • the bottle 2 comprises a tube 4 in which is placed a lower centralizer 8, a piston assembly and the propellant cartridge 5.
  • the upper part 15 and the lower part 16 of the tube 4 are connected by a transverse wall provided with a or several openings 37 (two are shown on the Figures 1 to 4 , 5A). These elements are described below.
  • the central tube 4 is intended to lead the extinguishing agent 6 to the drain channel 26. Equipped with its various components, it is threadedly connected to the valve body 24. Guide and retaining grooves are provided for the assembly and the maintenance of its different constituents.
  • the central tube 4 is divided into an upper part 15 and a lower part 16 whose outside diameter is smaller than the outside diameter of the upper part 15 of said tube 4.
  • the Figure 5A is a schematic longitudinal sectional view in the plane of symmetry of a tube 4 and its components according to a particular embodiment of the invention.
  • the Figure 5B represents a sectional view of the tube 4 in the plane perpendicular to the plane of the Figure 5A .
  • a lower centralizer 8 which is composed of a cylindrical chamber 32 from which emerges (looms) one or more outlets 12 (two are shown on the Figures 1 to 4 , 5A, 6A) intended to direct the propellant gas 7.
  • the apparatus comprises two ejectors 12.
  • the upper part 15 and the lower part 16 of the tube 4 are thus connected by a transverse wall provided with one or more openings (holes) 37 for the placement of the ejector (s) 12 of the lower centering device 8.
  • deflectors 40 creating one or more cavities 39 in direct communication with the aperture (s) 37.
  • This or these deflectors 40 forming this or these cavities 39 in which are housed the ejector (s) 12 of said lower centralizer 8 , are profiled downwards in their inner parts at an angle of at least 30 ° to the horizontal.
  • This or these baffles 40 serve to direct the propellant gas 7 in the bottle 2 at this angle, during the perforation of the cartridge 5, thereby enabling the extinguishing agent 6 contained in said bottle 2 to be effectively de-packed.
  • a conical portion 38 in the cylindrical part of the lower tube 16 is formed a conical portion 38 ( Figure 5A ).
  • This conical portion 38 connects the lower portion 16 and upper 15 of the tube 4 and allows the extinguishing agent 6 a better fluidity to and around the lower centering device 8.
  • the lower centering device 8 is illustrated in more detail in FIGS. 6A, 6B and 6C according to a particular embodiment.
  • the lower centralizer 8 is composed of a circular wall 45 and a transverse wall 46 forming a cylindrical chamber 32 for receiving the piston assembly.
  • the height of the chamber 32 is designed to receive said piston 9 and its displacement during the percussion of the cartridge 5. This chamber 32 transits the gas 7 during the percussion of the cartridge 5 directly to the ejectors or 12 which are profiled from one or more openings 47 to the base 46 of that -this.
  • the transverse wall 46 of the lower centralizer 8 (or the base 46 of the chamber 32) is provided with one or more openings 47 from which emerges one or more outlets 12 intended to direct the propellant gas.
  • ejectors 12 of said lower centering device 8 is obtained by clamping the outer diameter of the ejector (s) 12 in the cylindrical opening (s) 37 pierced in the transverse part of the upper tube 15.
  • the ejector (s) 12 are formed of cylindrical and conical tubes, each tube having a stop 48 allowing the placement of the lower centering device 8 in the tube 4 in order to exactly position said lower centering device 8 inside the tube 4.-
  • the inside diameter or the ejectors 12 is intended for the passage of the gas 7 during the percussion of the cartridge 5.
  • the ejectors 12 allow the passage of the gas 7 of the chamber 32 of said lower centralizer 8 directly in the mass of the extinguishing agent 6 contained in the bottle 2.
  • the small external diameter of the ejector (s) 12 is intended for fixing by clamping in the hole (s) 37 placed through the transverse wall of said tube 4.
  • the ejector end portion 12 is of conical shape and allows to facilitate the introduction of or ejectors 12 in the openings 37 during assembly.
  • the outer diameter of the circular wall 45 of said centralizer 8 is greater than the inside diameter of said circular wall 45.
  • the outside diameter of the circular wall 45 of said centralizer 8 is smaller than the inside diameter of the upper part 15 of the tube 4 and is designed so as to form a sufficient space 14 between the inner diameter of the upper part 15 of the tube 4 and the outer diameter of the circular wall 45 of said lower centralizer 8, to allow the passage of the extinguishing agent 6 during the drain of it.
  • the extinguishing agent penetrates inside the tube 4 by the end 17 of the lower tube 16, and passes below the lower centering device 8, and sneaks outside this centralizer 8 and along of the cartridge 5, in the circumferential space 14 separate the cartridge 5 from the wall of the central tube 4,15.
  • the path of the extinguishing agent inside the lower tube 16 is schematically illustrated by the arrow 43 ( Figure 5B ).
  • the lower portion of the circular wall 45 of said lower centralizer 8 is truncated and is made in two inclined planes 41 which meet in their middle, to facilitate the penetration and circulation of the gas-powder mixture.
  • the circular wall 45 thus comprises at its base two parallel, V-shaped, inclined planes 41 intended to promote the passage and the flow of the extinguishing agent 6.
  • the transverse wall 46 at the base of the chamber 32 comprises a boss 42.
  • the embossed boss 42 in the form of a truncated cone makes it possible to keep the base of the holding spring 10 centered.
  • a piston assembly is provided inside the lower centralizer 8.
  • the piston assembly is composed of a piston 9 ( Figures 7A and 7B ), an o-ring type seal 11, a holding spring 10, a striker 13, and another seal 111, the assembly being mounted on the propellant cartridge 7.
  • the seal 11 seals the propellant gas 7 during the perforation of the cartridge 5, between the outer diameter of said piston 9 and the inner diameter of said lower centralizer 8.
  • the seal 11 confines the gas in the chamber 32 of the lower centralizer 8 containing the ejectors 12, and prevents any gas particles 7 from entering the tube 4.
  • the seal 111 seals the propellant gas 7 during the perforation of the cartridge 8 between said piston 9 and said cartridge 5 at the neck 33 of the cartridge 5, the piston body 9 can be made of plastic.
  • the piston 9 consists of a one-piece cylindrical piece comprising a through bore of several diameters.
  • the piston comprises a hollow cylindrical rod 56 with a hollow shoulder 55 extending radially outwardly of the cylindrical rod 56 at one of its ends.
  • the piston 9 comprises a cylindrical collar 51 (cylindrical relief) whose diameter is smaller than that of the shoulder 55 and slightly greater than that of the cylindrical rod 56 at the height of the face central perpendicular. This cylindrical collar 51 keeps the lower spring 10 by clamping on the inner diameter of said spring 10.
  • the cylindrical rod 56 comprises a through bore 57 for the passage of a striker 13, this bore 57 being in direct communication with a bore 54 of larger diameter in the shoulder 55.
  • the inner diameter of the bore 57 longitudinally crossing the cylindrical rod 56 of said piston 8 is designed to receive the striker 13. It is by this single bore 57 that the gas 7, during the percussion, is directed into the chamber 32 of the lower centralizer 8 towards the ejector (s) 12.
  • the bore 54 of the shoulder forms a housing for receiving the neck 33 of the cartridge 5.
  • the bore 54 is provided with a groove 52 for the housing of a seal 111 (for example O-ring type) and a slight circular relief (circular collar) 53 located between the groove 52 and the base of the inner housing 54.
  • the seal 111 is intended to seal between said piston 9 and the neck 33 of the cartridge 5.
  • the relief 53 is provided for securing, by clipping, said piston 9 on the neck 33 of said cartridge 5.
  • the outer diameter of the shoulder 55 is slightly smaller than the inner diameter of the lower centralizer 8.
  • the outer portion of the shoulder 55 is provided with a groove 50 for the housing of a seal 11 (for example type O -ring).
  • the seal 11 is intended to seal between said piston 9 and the chamber 32 of the lower centralizer 8.
  • a holding spring 10 is placed on the body of the piston 9 and bears against the bottom of the lower centralizer 8.
  • the spring 10 holds the piston assembly in its initial position until the first action on the lever 38, in order to prevent puncture of the gas cartridge 5 during the settlement test or during any equivalent manipulations. Its holding action ends when pressurizing when using the device 1.
  • the apparatus also contains a striker 13, generally made of steel, the striker 13 is hollow and split along its entire length and serves for perforation of the propellant cartridge 7. Preferably, one end is bevelled to facilitate the perforation. It is placed in the center of the piston 9 and bears, like the holding spring 10, on the bottom of the lower centralizer 8. This element 13 remains stationary during the perforation of the cartridge 5.
  • the cartridge 5 which is a container containing the propellant gas 7 necessary for the pressurization of the extinguisher 1.
  • the neck 33 of the cartridge 5, containing the lid 34 provided for the perforation, is inserted directly in the center of the piston 9.
  • FIGS. 2, 3 and 4, 5A and 5B the operation of an apparatus according to the present invention is shown.
  • a first step, illustrated in figure 2 is to extract the security 29 out of the valve body 24 by firmly holding the device 1 and making a quick and energetic pull on the security 39, until complete extraction.
  • This extraction carried out perpendicularly to the fire extinguisher 1, automatically causes the rupture of the tamperproof seal.
  • the safety cam 29 causes the tilting and releasing the lever 28.
  • the control lever 28 pushes on the rod 35 by compressing the return spring 20.
  • the rod 35 pushes the cartridge 5 which drives in its movement the piston 9 while compressing the spring of 10. Since the striker 13 is stationary, the tip thereof pierces the cartridge 5.
  • the gas 7 contained in the cartridge 5 is violently confined in the chamber 32 of the lower centralizer 8 to be simultaneously expelled into the mass of the extinguishing agent 6 by the ejection channel or channels 12 which are in the cell or cells 39 created by the deflector (s) 40. Thanks to the return spring 20 of the rod 35, the channel drain 26 is obstructed. The release of the gas 7 contained in the cartridge 5 expelled directly down into the mass of powder causes an effective detachment of the extinguishing agent 6 and allows its homogenization.
  • the extinguishing agent 6 enters under the effect of pressure, inside the tube 4, in particular at the end 17 of the lower tube 16, and passes below the lower centering device 8, sneaks outside of this centralizer 8 and along the cartridge 5, in the circumferential space 14 separate the cartridge 5 from the wall of the central tube 4,15 passes through the outer ring 19 of the upper centralizer 18 and finally is blocked by the rod 35 which obstructs drain channel 26.
  • Extinguisher 1 is pressurized and ready for use.
  • the figure 4 shows the emptying of the fire extinguisher 1.
  • a manual pull on the control lever 28 again causes a displacement of the rod 35 and instantly allows the extinguishing agent 6 to be drained.
  • the return spring 20 replaces the rod 35 in its initial position as soon as the traction on the control lever 28 is released.
  • the drain channel 26 is thus again obstructed.
  • the apparatus is characterized in that the said propellant gas ejection channel (s) housed in the cell (s) 39 formed by the deflector (s) 40 are provided at a height between the lower half height. and the lower third quarter of the internal height of said body.
  • Figures 8A and 8B represent schematic sectional views of the bottle 2 of an extinguisher apparatus according to a particular embodiment comprising a tube 4 provided with two cells 39.
  • figure 8A illustrates an example of extinguisher body 2 with a diameter of +/- 86 mm.
  • the Figure 8B illustrates an example of extinguisher body 2 with a diameter of +/- 100 mm.
  • the cell (s) 39 are preferably located in the zone A ie between the lower half height and the third lower quarter of the internal height of the bottle 2.
  • the ejection of the gas in the bottle is optimized and allows an effective de-packing of the extinguishing agent so that it remains less than 10%, preferably less than 8%, preferably less than 5% of extinguishing agent in the bottle once it has been emptied, in accordance with the requirements of the EN3 standard.
  • the description given above relates to a fire extinguisher and its activation in "two" shots.
  • the pressurization of the fire extinguisher is achieved by a first action on the control lever; this must be done automatically when you retrieve the security.
  • a second action on the lever allows the extinguishing agent to be drained.
  • the present invention can also be applied to a “one-shot” apparatus. In a “one-shot” device the pressurization of the fire extinguisher and the extinguishing agent are carried out simultaneously by a single action of the control lever.
  • the devices of the present invention are therefore made in accordance with the EN3 standard for the manufacture of fire extinguishers.
  • the present invention also relates to the use of a fire extinguisher apparatus, preferably of the auxiliary pressure type for extinguishing a fire.
  • An apparatus according to the invention can for example be used in the automotive sector, the professional fire sector, or the domestic sector.

Abstract

The apparatus (1) has a metallic cylindrical body i.e. bottle (2) containing an extinguishing agent (6) i.e. dry powder. A central tube (4) is provided inside the body and has a pressurized cylindrical cartridge (5) that contains expellant gas (7) i.e. carbondioxide. The body has a centralizer (8) with ejecting ducts i.e. ejectors (12) which traverse a transversal wall of the tube and expel the gas directly into the agent, where the centralizer is provided inside the tube. Deflectors (40) serve to direct the gas in the bottle along an angle of 30 degree during perforation of the cartridge. An independent claim is also included for a method for extinguishing fire.

Description

Domaine technique de l'inventionTechnical field of the invention

La présente invention concerne un appareil extincteur d'incendie en son utilisation pour l'extinction d'un incendie. Plus en particulier, l'invention se rapporte à un appareil extincteur d'incendie du type à pression auxiliaire, dans lequel une cartouche contenant un gaz sous pression est utilisée pour pressurisation de l'extincteur.The present invention relates to a fire extinguisher apparatus in use for extinguishing a fire. More particularly, the invention relates to a fire extinguisher apparatus of the auxiliary pressure type, wherein a cartridge containing pressurized gas is used for pressurizing the fire extinguisher.

Arrière plan technologique de l'inventionTechnological background of the invention

Un extincteur contient un agent extincteur qui peut être projeté sur un feu par l'action d'une pression interne. Cette pression peut être fournie par une pression préalable permanente (le système à pression permanente) ou par la libération d'un gaz auxiliaire (très souvent du dioxyde de carbone) contenu dans une cartouche (le système à pression auxiliaire).An extinguisher contains an extinguishing agent that can be thrown onto a fire by the action of internal pressure. This pressure can be provided by a permanent pre-press (the permanent pressure system) or by the release of an auxiliary gas (very often carbon dioxide) contained in a cartridge (the auxiliary pressure system).

Plus en particulier, dans un système à pression auxiliaire l'extincteur est muni d'une cartouche de gaz, généralement du CO2, totalement hermétique. Le fait d'enfermer le gaz propulseur dans une cartouche permet d'éviter les fuites, mais il faut « percuter » la cartouche (la percer) pour pouvoir l'utiliser : le gaz est alors libéré de la cartouche et remplit le corps de l'extincteur contenant l'agent extincteur.More particularly, in an auxiliary pressure system the extinguisher is provided with a gas cartridge, generally CO 2, totally hermetic. The fact of enclosing the propellant in a cartridge makes it possible to avoid leaks, but it is necessary to "strike" the cartridge (to pierce it) to be able to use it: the gas is then released from the cartridge and fills the body of the extinguisher containing the extinguishing agent.

Dans un système à pression auxiliaire l'extincteur n'est pas sous pression avant utilisation, il n'y a donc pas de risque de fuite en manutention et stockage. La pression contenue dans la cartouche se décharge dans le corps de l'appareil par perforation de celle-ci. La pression se détend ensuite dans le corps de l'appareil pour se stabiliser à environ 15 bars. C'est une garantie de disposer de la pression nécessaire pour un fonctionnement optimum même après un long entreposage. L'appareil ne requiert pas de manomètre de contrôle puisqu'il n'y a pas de pression à l'intérieur de la bouteille avant percussion de la cartouche CO2. Cette technique convient donc parfaitement pour le marché privé. Elle convient également mieux à la grande distribution et à l'application " automobile " où les risques de chocs et vibrations existent, ce qui pourrait dans le cas du système à pression permanente avoir des conséquences fâcheuses (bris de la vanne par exemple et fuite de poudre).In an auxiliary pressure system the extinguisher is not under pressure before use, so there is no risk of leakage in handling and storage. The pressure contained in the cartridge is discharged into the body of the apparatus by perforation thereof. The pressure then relaxes in the body of the apparatus to stabilize at about 15 bar. It is a guarantee of having the necessary pressure for optimum operation even after long storage. The apparatus does not require as control manometer is no pressure inside of the bottle before percussion of the cartridge CO2. This technique is therefore ideal for the private market. It is also better suited to large-scale distribution and automotive applications where the risks of shocks and vibrations exist, which could in the case of the permanent pressure system have unfortunate consequences (breakage of the valve for example and leakage of powder).

Un des inconvénients d'extincteurs du type à pression auxiliaire connus dans l'art antérieur est le fait que l'homogénéisation du gaz et de l'agent extincteur, une fois que le gaz se libère de la cartouche et remplit le corps contenant l'agent extincteur, n'est pas toujours optimale. Ceci peut avoir comme conséquence que des restes d'agent extincteur (poudres) s'entassent dans l'extincteur. La capacité de l'appareil extincteur est ainsi réduite.One of the disadvantages of auxiliary pressure type fire extinguishers known in the prior art is the fact that the homogenization of the gas and the extinguishing agent, once the gas is released from the cartridge and fills the body containing the extinguishing agent, is not always optimal. This can result in leftover extinguishing agent (powders) piling up in the fire extinguisher. The capacity of the fire extinguisher is thus reduced.

De plus, dans des extincteurs connus dans l'art antérieur le temps nécessaire pour arriver à une pressurisation complète de l'appareil est souvent (trop) long.In addition, in extinguishers known in the prior art the time required to achieve complete pressurization of the apparatus is often (too) long.

C'est pourquoi la présente invention a pour objet d'améliorer le fonctionnement d'un appareil extincteur d'incendie, de préférence un extincteur à pression auxiliaire pour agent extincteur de type « poudre extinctrice ». Plus en particulier, l'invention a comme but d'améliorer le fonctionnement d'un extincteur par optimalisation du détassement de la poudre extinctrice et de l'homogénéisation du gaz propulseur et de la poudre.Therefore, the object of the present invention is to improve the operation of a fire extinguisher apparatus, preferably an auxiliary pressure extinguisher for extinguishing agent of the "dry powder" type. More particularly, the invention aims to improve the operation of a fire extinguisher by optimizing the drying out of the extinguishing powder and the homogenization of the propellant and the powder.

La présente invention a également comme but de fournir un appareil extincteur dans lequel la pressurisation de l'extincteur est améliorée, et en particulier accélérée.The present invention also aims to provide an extinguisher apparatus in which the pressurization of the extinguisher is improved, and in particular accelerated.

Sommaire de l'inventionSummary of the invention

Dans un premier aspect, l'invention concerne un appareil extincteur d'incendie, et en particulier un extincteur du type à pression auxiliaire.In a first aspect, the invention relates to a fire extinguisher apparatus, and in particular a fire extinguisher of the auxiliary pressure type.

Selon un premier aspect, l'invention se rapporte à un appareil extincteur d'incendie comprenant :

  • un corps contenant un agent extincteur de type poudre extinctrice,
  • une tête d'extincteur fixée audit corps et destinée à recevoir les accessoires de commande de l'appareil, et
  • un tube central, prévu à l'intérieur dudit corps, dans lequel est placée une cartouche sous pression contenant un gaz propulseur,
caractérisé en ce que ledit corps comprend un centreur inférieur, prévu à l'intérieur dudit tube, pourvu d'un ou plusieurs canaux d'éjection traversant la paroi transversale dudit tube et permettant d'expulser le gaz propulseur contenu dans ladite cartouche directement dans l'agent extincteur. Selon la présente invention, l'appareil comprend un ou plusieurs canaux d'éjection traversant la paroi transversale dudit tube, par exemple au moins 1 canal d'éjection, au moins 2, au moins 3 ou au moins 4 canaux d'éjection ou plus. De préférence l'appareil comprend 1 ou 2, ou 3, ou 4 canaux d'éjection, plus préférablement 2 canaux d'éjection.According to a first aspect, the invention relates to a fire extinguisher apparatus comprising:
  • a body containing an extinguishing agent of the fire-extinguishing powder type,
  • a fire extinguisher head attached to said body and intended to receive the control accessories of the apparatus, and
  • a central tube, provided inside said body, in which is placed a pressure cartridge containing a propellant,
characterized in that said body comprises a lower centering device, provided inside said tube, provided with one or more ejection channels passing through the transverse wall of said tube and for expelling the propellant contained in said cartridge directly into the tube. extinguishing agent. According to the present invention, the apparatus comprises one or more ejection channels passing through the transverse wall of said tube, for example at least 1 ejection channel, at least 2, at least 3 or at least 4 ejection channels or more. . Preferably the apparatus comprises 1 or 2, or 3, or 4 ejection channels, more preferably 2 ejection channels.

Selon un mode de réalisation préféré, l'appareil est caractérisé en ce que la ou les extrémités du ou desdits canaux d'éjection sont logée(s) dans une ou des alvéole(s) formée(s) par un ou des déflecteur(s) localisés sur la paroi extérieure dudit tube.According to a preferred embodiment, the apparatus is characterized in that the end (s) of the at least one ejection channel (s) are housed in one or more cells formed by a deflector (s). ) located on the outer wall of said tube.

Selon un mode de réalisation, l'appareil est caractérisé en ce que la cartouche est essentiellement cylindrique et muni d'un col contenant un opercule prévu pour la perforation de la cartouche. De préférence, l'appareil est caractérisé en ce que la cartouche est placée à l'envers dans ledit tube central avec son col et son opercule orienté vers la base du corps.According to one embodiment, the apparatus is characterized in that the cartridge is essentially cylindrical and provided with a neck containing a cover provided for the perforation of the cartridge. Preferably, the apparatus is characterized in that cartridge is placed upside down in said central tube with its neck and its lid oriented towards the base of the body.

Selon un mode de réalisation préféré, l'appareil est caractérisé en ce que le tube central est divisé en une partie supérieure et une partie inférieure dont le diamètre extérieur est plus petit que le diamètre extérieur de la partie supérieure dudit tube. De préférence, la cartouche est montée à l'intérieur de la partie supérieure dudit tube central, et le diamètre extérieur de ladite cartouche est plus petit que le diamètre intérieur de ladite partie supérieure du tube, afin qu'un espace circonférentiel soit créé entre ladite cartouche et la partie supérieure dudit tube. De plus, dans un autre mode de réalisation préféré, l'appareil est caractérisé en ce que ledit centreur inférieur est prévu dans la partie supérieure dudit tube central au niveau du col de ladite cartouche.According to a preferred embodiment, the apparatus is characterized in that the central tube is divided into an upper part and a lower part whose outer diameter is smaller than the outer diameter of the upper part of said tube. Preferably, the cartridge is mounted within the upper portion of said central tube, and the outer diameter of said cartridge is smaller than the inner diameter of said upper portion of the tube, so that a circumferential gap is created between said cartridge and the upper part of said tube. In addition, in another preferred embodiment, the apparatus is characterized in that said lower centering device is provided in the upper part of said central tube at the neck of said cartridge.

L'appareil est caractérisé en ce que le ou lesdits canaux d'éjection du gaz propulseur sont prévus à une hauteur comprise entre la demi hauteur inférieure et le troisième quart inférieur de la hauteur interne dudit corps. De préférence, le ou lesdits canaux éjecteurs sont dirigés vers le bas et transitent de l'intérieur du tube central, vers le coeur de la masse de poudre.The apparatus is characterized in that the one or more propellant gas ejection channels are provided at a height between the lower half height and the lower third quarter of the internal height of said body. Preferably, said ejection channel or channels are directed downwards and pass from the inside of the central tube to the core of the powder mass.

Selon un mode de réalisation particulièrement préféré, ledit centreur inférieur est composé d'une chambre cylindrique contenant un ensemble piston lequel est monté, de préférence par clipsage, sur la cartouche. De préférence, ledit ensemble piston comprend :

  • un piston,
  • un joint assurant l'étanchéité du gaz propulseur lors de la perforation de la cartouche entre ledit piston et ladite cartouche au niveau du col de la cartouche,
  • un joint assurant l'étanchéité du gaz propulseur lors de la perforation de la cartouche entre le diamètre extérieur dudit piston et le diamètre intérieur dudit centreur inférieur,
  • un percuteur placé au centre du piston en prenant appui sur le fond dudit centreur inférieur permettant de perforer la cartouche au niveau de l'opercule de ladite cartouche, et
  • un ressort inférieur (de maintien) placé au centre du piston en prenant appui sur le fond dudit centreur inférieur, permettant de contrôler la position de l'ensemble piston.
According to a particularly preferred embodiment, said lower centralizer is composed of a cylindrical chamber containing a piston assembly which is mounted, preferably by clipping, on the cartridge. Preferably, said piston assembly comprises:
  • A piston,
  • a seal ensuring the sealing of the propellant gas during the perforation of the cartridge between said piston and said cartridge at the neck of the cartridge,
  • a seal ensuring the sealing of the propellant gas during the perforation of the cartridge between the outer diameter of said piston and the inside diameter of said lower locator,
  • a striker placed in the center of the piston resting on the bottom of said lower centering device for perforating the cartridge at the operculum of said cartridge, and
  • a lower spring (holding) placed in the center of the piston bearing on the bottom of said lower center, for controlling the position of the piston assembly.

Selon un mode de réalisation particulièrement préféré, ladite tête d'extincteur comprend :

  • un corps de vanne comprenant principalement un canal central, destiné à recevoir une tige, et un canal latéral, constituant un canal de vidange de l'agent extincteur,
  • un levier de commande relié audit corps de vanne par un axe,
  • une sécurité, permettant de protéger toutes actions sur ledit levier de commande,
  • un scellé, permettant de visualiser si l'extincteur a été utilisé ou non,
  • une tige, monté dans ledit canal central du corps de vanne, et contrôlant l'ouverture et la fermeture dudit canal de vidange, et
  • un centreur supérieur, permettant de centrer ladite tige vis-à-vis dudit canal de vidange.
According to a particularly preferred embodiment, said extinguisher head comprises:
  • a valve body mainly comprising a central channel for receiving a rod, and a lateral channel constituting a drain channel for the extinguishing agent,
  • a control lever connected to said valve body by an axis,
  • a security, to protect all actions on said control lever,
  • a seal, showing whether the extinguisher has been used or not,
  • a rod, mounted in said central channel of the valve body, and controlling the opening and closing of said drain channel, and
  • an upper centralizer, for centering said rod vis-à-vis said drain channel.

L'appareil selon l'invention est de préférence caractérisé en ce que ledit centreur supérieur est composé d'une chambre cylindrique à la base de laquelle est monté un anneau de maintien contenant des ouvertures pour le passage de l'agent extincteur.The apparatus according to the invention is preferably characterized in that said upper centralizer is composed of a cylindrical chamber at the base of which is mounted a holding ring containing openings for the passage of the extinguishing agent.

Selon un mode de réalisation particulièrement préféré, ladite tige comprend :

  • un ressort de rappel, prenant appui sur ledit anneau de maintien du centreur supérieur,
  • un joint supérieur assurant l'étanchéité du canal central au-delà du canal de vidange,
  • un joint central assurant l'étanchéité au-devant du canal de vidange, et
  • un joint inférieur assurant l'étanchéité de la chambre du centreur supérieur.
According to a particularly preferred embodiment, said rod comprises:
  • a return spring, bearing on said retaining ring of the upper centering device,
  • an upper seal ensuring the sealing of the central channel beyond the drain channel,
  • a central seal ensuring the seal in front of the emptying channel, and
  • a lower seal ensuring the sealing of the chamber of the upper centering device.

Selon un autre aspect, l'invention se rapporte à un procédé d'extinction d'incendie dans lequel de préférence un appareil extincteur selon l'invention est mis en oeuvre.According to another aspect, the invention relates to a fire extinguishing method in which preferably an extinguisher apparatus according to the invention is implemented.

Le présent procédé d'extinction d'incendie utilisant un appareil extincteur comprenant un corps contenant un agent extincteur de type poudre extinctrice, une tête d'extincteur fixée audit corps et un tube central, prévu à l'intérieur dudit corps, dans lequel est placé une cartouche sous pression contenant un gaz propulseur, ledit procédé comprenant une pressurisation de l'extincteur et la vidange de l'agent extincteur, est de préférence caractérisé en ce que la pressurisation comprend les étapes consécutives de:

  1. 1. percussion de ladite cartouche permettant de libérer le gaz propulseur contenu dans ladite cartouche,
  2. 2. expulsion du gaz propulseur à la sortie de la cartouche directement dans l'agent extincteur,
  3. 3. mélange du gaz propulseur et de l'agent extincteur,
  4. 4. transport du mélange du gaz propulseur et de l'agent extincteur vers la tête d'extincteur.
The present fire extinguishing method using an extinguisher apparatus comprising a body containing a fire extinguishing powder extinguishing agent, a fire extinguisher head attached to said body and a central tube provided inside said body, in which is placed a pressurized cartridge containing a propellant, said method comprising pressurizing the extinguisher and emptying the extinguishing agent, is preferably characterized in that the pressurization comprises the following steps of:
  1. 1. percussion of said cartridge for releasing the propellant contained in said cartridge,
  2. 2. expulsion of the propellant gas at the outlet of the cartridge directly into the extinguishing agent,
  3. 3. mixture of propellant and extinguishing agent,
  4. 4. transporting the mixture of propellant and extinguishing agent to the extinguisher head.

De préférence, le procédé est caractérisé en ce que le gaz propulseur est expulsé à la sortie de la cartouche dans l'agent extincteur par un ou des canaux d'éjection traversant la paroi transversale du tube central et dirigés vers le bas, le gaz étant propulsé à un angle d'au moins 30 ° par rapport à la direction d'éjection grâce à un ou des déflecteurs.Preferably, the process is characterized in that the propellant is expelled at the outlet of the cartridge into the extinguishing agent through one or more ejection channels passing through the transverse wall of the central tube and directed downwards, the gas being propelled at an angle of at least 30 ° with respect to the ejection direction by means of one or more deflectors.

Selon un mode de réalisation préféré, le procédé est caractérisé en ce que le gaz propulseur est expulsé à la sortie de la cartouche à une hauteur comprise entre la demi hauteur inférieure et le troisième quart inférieur de la hauteur interne du corps de l'appareil extincteur. De préférence, le mélange du gaz propulseur et de l'agent extincteur pénètre à l'intérieur du tube central par la base dudit tube et est transporté à l'intérieur du tube central le long de ladite cartouche vers la tête d'extincteur. De plus, l'expulsion du gaz propulseur et la pénétration à l'intérieur du tube central du mélange du gaz propulseur et de l'agent extincteur sont de préférence spatialement séparées.According to a preferred embodiment, the method is characterized in that the propellant gas is expelled at the outlet of the cartridge at a height between the lower half height and the lower third quarter of the internal height of the body of the fire extinguisher apparatus. . Preferably, the mixture of the propellant and extinguishing agent enters the interior of the central tube through the base of said tube and is transported inside the central tube along said cartridge towards the extinguisher head. In addition, the expulsion of the propellant and the penetration into the central tube of the mixture of propellant and extinguishing agent are preferably spatially separated.

Selon un mode de réalisation dudit procédé, la pressurisation dudit extincteur et la vidange de l'agent extincteur sont réalisées simultanément. Selon un autre mode de réalisation, la pressurisation dudit extincteur et la vidange de l'agent extincteur sont réalisées de manière consécutive.According to one embodiment of said method, the pressurization of said extinguisher and the emptying of the extinguishing agent are carried out simultaneously. According to another embodiment, the pressurization of said extinguisher and the emptying of the extinguishing agent are carried out consecutively.

Le principe de fonctionnement du présent appareil est le suivant. Lors de la mise en fonctionnement de l'extincteur, le gaz propulseur contenu dans la cartouche est libéré précipitamment dans le corps (la bouteille) de l'extincteur et directement dans la masse de la poudre extinctrice par un ou plusieurs canaux d'éjection placés judicieusement dans une ou des alvéoles formées par un ou des déflecteurs le long du tube central. Cette action a pour but le détassement de la poudre contenue dans la bouteille afin de constituer un mélange homogène du gaz propulseur et de la poudre. L'ouverture de la tête de l'extincteur (le robinet d'arrêt) permet alors l'évacuation de la poudre extinctrice.The operating principle of this device is as follows. When the extinguisher is put into operation, the propellant gas contained in the cartridge is released precipitately into the body (the bottle) of the extinguisher and directly into the mass of the extinguishing powder by one or more ejection channels placed suitably in one or more cells formed by one or more deflectors along the central tube. This action aims to detach the powder contained in the bottle to form a homogeneous mixture of propellant and powder. The opening of the fire extinguisher head (the shut-off valve) then allows the evacuation of the extinguishing powder.

Il est important de noter que dans l'appareil et le procédé selon l'invention, le gaz propulseur est expulsé à la sortie de la cartouche directement dans la masse de poudre extinctrice. La propulsion de gaz dans la poudre peut être réalisée par un ou plusieurs canaux d'éjections. La propulsion du gaz dans la poudre peut être réalisée à différents niveaux pour autant qu'elle soit dans la masse de poudre. Le ou les canaux d'éjection sont de préférence prévus à une hauteur comprise entre la demi hauteur inférieure et le troisième quart inférieur de la hauteur interne du corps de l'appareil extincteur. Le ou les canaux d'éjection sont également de préférence dirigés vers le bas et transitent de l'intérieur du tube central, vers le coeur de la masse de poudre. Selon un mode de réalisation particulier, l'extrémité du ou des canaux d'éjection sont logées dans une ou des alvéoles formées par un ou des déflecteurs localisés sur la paroi extérieure du tube central. Les caractéristiques techniques du ou des canaux d'éjection et du ou des déflecteurs et la façon de propulser le gaz dans la poudre, permet d'obtenir une meilleure homogénéisation du gaz propulseur et de la poudre.It is important to note that in the apparatus and method according to the invention, the propellant is expelled at the outlet of the cartridge directly into the mass of extinguishing powder. The propulsion of gas into the powder can be carried out by one or more ejection channels. Propulsion of the gas into the powder can be carried out at different levels as long as it is in the powder mass. The ejection channel or channels are preferably provided at a height between the lower half height and the lower third quarter of the internal height of the body of the fire extinguisher. The ejection channel (s) are also preferably directed downwards and pass from the inside of the central tube to the core of the powder mass. According to a mode of particular embodiment, the end of the ejection channel or channels are housed in one or more cells formed by one or more baffles located on the outer wall of the central tube. The technical characteristics of the ejection channel (s) and the baffle (s) and the manner in which the gas is propelled into the powder makes it possible to obtain a better homogenization of the propellant and the powder.

La présente invention permet donc de diminuer considérablement la charge du résidu de poudre après vidange de celle-ci en une fois, conformément aux impositions de la norme EN3 (d'application pour les « Extincteurs d'incendie portatifs ») pour laquelle la charge résiduelle pour ce type de poudre n'est actuellement pas supérieure à 10% de la masse de poudre initialement contenu dans l'extincteur.The present invention therefore makes it possible to considerably reduce the charge of the powder residue after emptying it at once, in accordance with the requirements of the EN3 standard (applicable to "portable fire extinguishers") for which the residual charge for this type of powder is currently not more than 10% of the powder mass initially contained in the fire extinguisher.

En plus, selon la présente invention, le gaz propulseur pénètre directement dans la poudre extinctrice à la sortie de la cartouche, tandis que le mélange du gaz propulseur et de l'agent extincteur pénètre dans le tube central à l'extrémité inférieur dudit tube, et est transporté à l'intérieur du tube central le long de ladite cartouche vers la tête d'extincteur. La sortie du gaz propulseur de la cartouche et l'entrée du mélange de gaz et poudre sont donc réalisées à différents niveaux. Selon la présente invention, le gaz propulseur ne doit pas parcourir le tube central avant d'être évacué dans la masse de poudre extinctrice. Ceci entraîne un gain de temps: le gaz est plus rapidement relâché dans la poudre extinctrice, l'homogénéisation du gaz propulseur et de la poudre est accélérée, et la pressurisation de l'extincteur est plus rapidement obtenue.In addition, according to the present invention, the propellant gas enters directly into the extinguishing powder at the outlet of the cartridge, while the mixture of the propellant and the extinguishing agent enters the central tube at the lower end of said tube, and is transported inside the central tube along said cartridge towards the extinguisher head. The output of the propellant gas from the cartridge and the entry of the mixture of gas and powder are therefore carried out at different levels. According to the present invention, the propellant must not flow through the central tube before being discharged into the mass of extinguishing powder. This results in a saving of time: the gas is released more quickly in the extinguishing powder, homogenization of the propellant and the powder is accelerated, and the pressurization of the fire extinguisher is more quickly obtained.

D'autres caractéristiques de l'invention ressortent de la description qui suit faite avec référence aux dessins annexés.Other features of the invention appear from the description which follows with reference to the accompanying drawings.

Brève description des dessinsBrief description of the drawings

  • La figure 1 est une vue en coupe schématique dans le plan de symétrie d'un appareil extincteur selon un mode de réalisation particulier de l'invention avant emploi.The figure 1 is a schematic sectional view in the plane of symmetry of an extinguisher apparatus according to a particular embodiment of the invention before use.
  • La figure 2 représente l'appareil extincteur de la figure 1, dans lequel la cartouche contenant le gaz propulseur est percutée libérant ainsi le gaz propulseur dans le corps de l'appareil.The figure 2 represents the fire extinguisher of the figure 1 , in which the cartridge containing the propellant gas is impacted thereby releasing the propellant gas into the body of the apparatus.
  • La figure 3 représente l'appareil extincteur de la figure 1, dans lequel l'homogénéisation du gaz propulseur et de l'agent extincteur se fait dans le corps de l'appareil.The figure 3 represents the fire extinguisher of the figure 1 , in which the homogenization of the propellant and the extinguishing agent is in the body of the apparatus.
  • La figure 4 représente la vidange de l'appareil extincteur de la figure 1.The figure 4 represents the emptying of the extinguisher apparatus of the figure 1 .
  • La figure 5A représente une vue en coupe longitudinale schématique dans le plan de symétrie d'un tube 4 et de ses composants selon un mode de réalisation particulier de l'invention. La figure 5B représente une vue en coupe du tube 4 dans le plan perpendiculaire au plan de la figure 5A.The Figure 5A is a schematic longitudinal sectional view in the plane of symmetry of a tube 4 and its components according to a particular embodiment of the invention. The Figure 5B represents a sectional view of the tube 4 in the plane perpendicular to the plane of the Figure 5A .
  • La figure 6A représente une vue en coupe longitudinale schématique d'un centreur inférieur 8 selon un mode de réalisation particulier de l'invention. La figure 6B représente une vue en coupe du centreur inférieur 8 dans le plan perpendiculaire au plan de la figure 6A. La figure 6C représente une vue du dessus du centreur inférieur des figures 6A et 6B.The Figure 6A is a schematic longitudinal sectional view of a lower centralizer 8 according to a particular embodiment of the invention. The Figure 6B represents a sectional view of the lower centralizer 8 in the plane perpendicular to the plane of the Figure 6A . The Figure 6C represents a view from above of the lower centraliser of Figures 6A and 6B .
  • La figure 7A représente une vue de face schématique d'un piston 9 selon un mode de réalisation particulier. La figure 7B représente une vue en coupe selon le plan A-A du piston 9 de la figure 7A.The Figure 7A represents a schematic front view of a piston 9 according to a particular embodiment. The Figure 7B represents a sectional view along the plane AA of the piston 9 of the Figure 7A .
  • Les figures 8A et 8B représentent des vues en coupe schématique de la bouteille 2 d'un appareil extincteur selon un mode de réalisation particulier.The Figures 8A and 8B are schematic sectional views of the bottle 2 of an extinguisher apparatus according to a particular embodiment.
Description détailléedetailed description

Un extincteur du type à pression auxiliaire est généralement constitué d'un corps, de préférence un cylindre métallique, d'une robinetterie (également appelé tête d'extincteur ou robinet d'arrêt), d'un tube central et d'une cartouche de gaz. Des extincteurs portatifs sont pourvus d'une poignée permettant de porter l'extincteur et de percuter la cartouche. Dans la présente invention les termes « extincteur » ou « appareil extincteur » sont utilisés comme synonymes.An auxiliary pressure type fire extinguisher generally consists of a body, preferably a metal cylinder, a valve (also known as a fire extinguisher or stopcock), a central tube and a cartridge. gas. Portable fire extinguishers are equipped with a handle to carry the fire extinguisher and to strike the cartridge. In the present invention the terms "extinguisher" or "fire extinguisher" are used as synonyms.

Dans la présente invention, la propulsion du gaz contenu dans la cartouche et la commande de l'appareil ont été améliorées en introduisant des éléments de fonctionnement au niveau de la sortie de la cartouche et de la tête de l'extincteur. En particulier, l'appareil a été amélioré de sorte que l'éjection du gaz propulseur dans la bouteille se face à l'aide d'un ou plusieurs éjecteurs logés dans une ou des alvéoles formées par un ou des déflecteurs. Ce ou ces déflecteurs servent à diriger le gaz propulseur dans la masse de poudre et permettent une meilleure homogénéisation du gaz et de l'agent extincteur et ainsi un meilleur dé-tassement de celui-ci.In the present invention, the propulsion of the gas contained in the cartridge and the control of the apparatus have been improved by introducing operating elements at the outlet of the cartridge and the head of the extinguisher. In particular, the apparatus has been improved so that the ejection of the propellant gas into the bottle is confronted by means of one or more ejectors housed in one or more cells formed by one or more deflectors. This or these baffles are used to direct the propellant in the powder mass and allow better homogenization of the gas and extinguishing agent and thus a better de-packing thereof.

Faisant référence à la figure 1 , un extincteur 1 selon un mode de réalisation particulier de la présente invention est illustré. Les figures 2 , 3 et 4 , 5A et 5B représentent schématiquement le fonctionnement d'un appareil 1 selon un mode de réalisation particulier de la présente invention.Referring to the figure 1 a fire extinguisher 1 according to a particular embodiment of the present invention is illustrated. The figures 2 , 3 and 4 , 5A and 5B schematically represent the operation of an apparatus 1 according to a particular embodiment of the present invention.

Selon un mode de réalisation particulier de l'invention, les éléments de base de l'extincteur 1 comprennent :

  • une bouteille 2, également appelé « corps » dans la présente invention, laquelle bouteille est un récipient ou réservoir, généralement cylindrique, en métal ou en plastique, prévu pour être mis sous pression interne et muni des parties soudées.
  • une vanne 3; également appelé « robinet d'arrêt » ou « tête d'extincteur » dans la présente invention, laquelle rempli plusieurs fonctions. Dans un premier temps elle sert de bouchon de fermeture de la bouteille 2. Ensuite elle permet la perforation de la cartouche 5 de gaz propulseur 7. Enfin, elle autorise la vidange de l'agent extincteur 6 en une fois ou par intermittence.
  • un agent extincteur 6, lequel est un ensemble du ou des produits contenus dans l'extincteur et dont l'action provoque l'extinction. La nature de l'agent extincteur retenu est fonction de la classe de feu la plus probable dans la zone d'utilisation de l'appareil. On distingue différentes classes de feux, entre autres les feux de matériaux solides (classe A) ; de matériaux liquides ou de solides liquéfiables (classe B), de gaz (classe C), de métaux (classe D). Les principaux agents extincteurs qui peuvent être utilisés dans la présente invention sont les suivants. Entre parenthèse les classes sur lesquelles ils sont utilisables : l'eau pulvérisée (A) ; l'eau pulvérisée avec additif (émulseur) (AB) ; les poudres ABC (ABC) ; les poudres BC (BC) ; le dioxyde de carbone (BC) ou les poudres D (D). De préférence, l'agent extincteur est une poudre de type ABC.
  • une cartouche 5, laquelle comprend un récipient métallique sous pression contenant un gaz propulseur 7, par exemple du CO2.
  • un tube central 4 destiné à conduire le mélange de l'agent extincteur 6 et le gaz propulseur 7 vers la tête de l'appareil 3 et ainsi vers l'extérieur.
According to a particular embodiment of the invention, the basic elements of extinguisher 1 comprise:
  • a bottle 2, also referred to as a "body" in the present invention, which bottle is a generally cylindrical container or tank made of metal or plastic, intended to be pressurized internally and provided with welded parts.
  • a valve 3; also called "shut-off valve" or "fire extinguisher head" in the present invention, which fulfills several functions. At first she serves as closing cap of the bottle 2. Then it allows the perforation of the cartridge 5 propellant 7. Finally, it allows the emptying of the extinguishing agent 6 at once or intermittently.
  • an extinguishing agent 6, which is an assembly of the product or products contained in the extinguisher and whose action causes extinction. The nature of the extinguishing agent used depends on the most likely fire class in the area of use of the appliance. There are different classes of fires, including fires of solid materials (class A); liquid materials or liquifiable solids (class B), gases (class C), metals (class D). The main extinguishing agents that can be used in the present invention are as follows. In parentheses, the classes on which they can be used: water spray (A); water spray with additive (emulsifier) (AB); powders ABC (ABC); BC (BC) powders; carbon dioxide (BC) or powders D (D). Preferably, the extinguishing agent is an ABC type powder.
  • a cartridge 5, which comprises a metal container under pressure containing a propellant gas 7, for example CO 2 .
  • a central tube 4 for conducting the mixture of the extinguishing agent 6 and the propellant gas 7 to the head of the apparatus 3 and thus to the outside.

La partie supérieure de l'appareil, c'est-à-dire les éléments de la vanne 3 est décrite ci-dessous. Cette partie supérieure ou vanne 3 est composée du corps de vanne 24 comprenant un levier de commande 28, une sécurité 29, un scellé 30, une tige 35 et un centreur supérieur 18.The upper part of the apparatus, i.e. the elements of the valve 3 is described below. This upper part or valve 3 is composed of the valve body 24 comprising a control lever 28, a security 29, a seal 30, a rod 35 and an upper centering device 18.

Le corps de vanne 24 est prévu pour recevoir l'ensemble des éléments composant la vanne 3. Le corps de vanne 24 comprend principalement un canal (alésage) central 27 destiné à recevoir la tige (ou tiroir) 35, et un autre canal (alésage) 26 généralement perpendiculaire au premier destiné au passage de sortie de l'agent extincteur 6. Ce canal 26 est aussi appelé canal de vidange ou canal de sortie 26 de l'agent extincteur. Le corps de vanne 24, dans le cas présent, est fixé à la bouteille 2 par vissage et l'étanchéité de ces deux parties est assurée par un joint de tête type o-ring 31.The valve body 24 is designed to receive all the elements making up the valve 3. The valve body 24 mainly comprises a central channel (bore) 27 intended to receive the rod (or slide) 35, and another channel (bore ) 26 is generally perpendicular to the first for the exit passage of the extinguishing agent 6. This channel 26 is also called drain channel or outlet channel 26 of the extinguishing agent. The valve body 24, in this case, is fixed to the bottle 2 by screwing and the sealing of these two parts is provided by an o-ring type head seal 31.

L'appareil selon la présente invention contient également un levier 28. Le levier 28 est relié au corps de vanne 24 par un axe 25. L'action du levier 28 permet dans un premier temps la pressurisation de l'extincteur par perforation de la cartouche 5, et ensuite cette même action autorise l'expulsion en un coup ou par intermittence de l'agent extincteur 6.The apparatus according to the present invention also contains a lever 28. The lever 28 is connected to the valve body 24 by an axis 25. The action of the lever 28 first allows the pressurization of the extinguisher by perforation of the cartridge. 5, and then this same action authorizes the expulsion in one blow or intermittently of the extinguishing agent 6.

La tige ou tiroir 35 d'un appareil 1 selon la présente invention est l'élément central de la vanne 3. La tige 35 composée d'un corps, de trois joints de type o-ring, 21, 22, 23, et d'un ressort de rappel 20. Le joint supérieur 21 assure l'étanchéité du canal central 27 au-delà du canal de sortie 26 de l'agent extincteur. Le joint central 22 assure l'étanchéité au-devant de ce canal de sortie 26. Le joint inférieur 23 assure l'étanchéité de la chambre contenant le ressort de rappel 20. L'action sur le levier de commande 28 autorise le déplacement de la tige 35 dans le canal central 27. Ce déplacement dégage le joint central 22 de son logement et permet l'expulsion de l'agent extincteur 6 par le canal de vidange 26. Le ressort de rappel 20 permet à la tige 35 de reprendre sa position initiale dès que l'action sur le levier 28 est annulée.The rod or drawer 35 of an apparatus 1 according to the present invention is the central element of the valve 3. The rod 35 consists of a body, three o-ring type seals, 21, 22, 23, and 'a return spring 20. The upper seal 21 seals the central channel 27 beyond the outlet channel 26 of the extinguishing agent. The central seal 22 seals in front of this outlet channel 26. The lower seal 23 seals the chamber containing the return spring 20. The action on the control lever 28 allows the displacement of the rod 35 in the central channel 27. This movement releases the central seal 22 of its housing and allows the expulsion of the extinguishing agent 6 through the drain channel 26. The return spring 20 allows the rod 35 to resume its position initial as soon as the action on the lever 28 is canceled.

Le centreur supérieur 18 est composé d'une chambre et d'un anneau de maintien 19. La chambre du centreur supérieur est destinée à recevoir le ressort de rappel 20 de la tige. L'anneau de maintien 19 sert d'appui pour ce ressort de rappel 20, et de centrage de la tige 35 vis à vis du canal central 27. Cet anneau 19 comprend des ouvertures (ou trous) 36 pour le passage de l'agent extincteur 6.The upper centralizer 18 is composed of a chamber and a retaining ring 19. The upper centering chamber is intended to receive the return spring 20 of the rod. The retaining ring 19 serves as support for this return spring 20, and centering of the rod 35 with respect to the central channel 27. This ring 19 comprises openings (or holes) 36 for the passage of the agent fire extinguisher 6.

Les autres éléments de la vanne 3 de l'appareil 1 comprennent une sécurité 29 et un scellé 30. La sécurité 29 est composée d'une came et d'un anneau. Cet ensemble est destiné à protéger toutes actions sur le levier 28 et est protégé par un scellé 30 inviolable. Une traction énergique et perpendiculaire à la bouteille 2 sur l'anneau entraîne la came à l'extérieur de la vanne 3. Pendant cette opération la came fractionne le scellé 30 et bascule le levier 28 : cette action permet la réalisation de la perforation de la cartouche (5) et la pressurisation de l'extincteur 1. Cette action, également appelé « prépercussion », est illustrée aux figures 2 et 3 . Le scellé inviolable 30 est un élément de contrôle permettant de visualiser instantanément si l'extincteur 1 à été utilisé ou non. Cet élément 30 ne peut être retiré ou enlevé que par rupture de celui-ci. Il est fracturé lors de l'extraction de la sécurité 29.The other elements of the valve 3 of the apparatus 1 comprise a security 29 and a seal 30. The security 29 is composed of a cam and a ring. This assembly is intended to protect all actions on the lever 28 and is protected by a tamperproof seal. An energetic and perpendicular traction on the bottle 2 on the ring drives the cam to the outside of the valve 3. During this operation the cam splits the seal 30 and switches the lever 28: this action allows the perforation of the cartridge (5) and the pressurization of the fire extinguisher 1. This action, also called "pre-impact", is illustrated in figures 2 and 3 . The tamperproof seal 30 is a control element allowing to instantly visualize whether extinguisher 1 has been used or not. This element 30 can be removed or removed only by breaking it. It is fractured during the extraction of security 29.

Selon un mode de réalisation particulier de la présente invention, la partie inférieure ou interne de l'appareil 1 comprend une bouteille 2 ayant une paroi cylindrique et un fond 44 de forme bombée. La bouteille 2 comprend un tube 4 dans lequel est placé un centreur inférieur 8, un ensemble piston et la cartouche 5 de gaz propulseur 7. La partie supérieure 15 et la partie inférieure 16 du tube 4 sont reliées par une paroi transversale pourvue d'une ou plusieurs ouvertures 37 (deux sont montrées sur les figures 1 à 4 , 5A). Ces éléments sont décrits ci-dessous.According to a particular embodiment of the present invention, the lower or internal part of the apparatus 1 comprises a bottle 2 having a cylindrical wall and a bottom 44 of curved shape. The bottle 2 comprises a tube 4 in which is placed a lower centralizer 8, a piston assembly and the propellant cartridge 5. The upper part 15 and the lower part 16 of the tube 4 are connected by a transverse wall provided with a or several openings 37 (two are shown on the Figures 1 to 4 , 5A). These elements are described below.

Le tube central 4 est destiné à conduire l'agent extincteur 6 vers le canal de vidange 26. Muni de ses différents composants, il est raccordé par filetage au corps de vanne 24. Des rainures de guidage et de maintien sont prévues pour l'assemblage et le maintien de ses différents constituants. Le tube central 4 est divisé en une partie supérieure 15 et une partie inférieure 16 dont le diamètre extérieur est plus petit que le diamètre extérieur de la partie supérieure 15 dudit tube 4. La figure 5A représente une vue en coupe longitudinale schématique dans le plan de symétrie d'un tube 4 et de ses composants selon un mode de réalisation particulier de l'invention. La figure 5B représente une vue en coupe du tube 4 dans le plan perpendiculaire au plan de la figure 5A.The central tube 4 is intended to lead the extinguishing agent 6 to the drain channel 26. Equipped with its various components, it is threadedly connected to the valve body 24. Guide and retaining grooves are provided for the assembly and the maintenance of its different constituents. The central tube 4 is divided into an upper part 15 and a lower part 16 whose outside diameter is smaller than the outside diameter of the upper part 15 of said tube 4. The Figure 5A is a schematic longitudinal sectional view in the plane of symmetry of a tube 4 and its components according to a particular embodiment of the invention. The Figure 5B represents a sectional view of the tube 4 in the plane perpendicular to the plane of the Figure 5A .

Dans la partie supérieure 15 du tube central 4 se trouve un centreur inférieur 8 qui est composé d'une chambre cylindrique 32 d'où émerge (se profile) une ou plusieurs sorties 12 (deux sont montrées sur les figures 1 à 4 , 5A, 6A) destinées à diriger le gaz propulseur 7. Cette ou ces sorties 12, appelées « éjecteur » ou « canaux d'éjection » traversent la paroi transversale du tube 4 au niveau des ouvertures 37, afin d'expulser vers le bas le gaz propulseur 7 directement dans la masse de l'agent extincteur 6. Selon un mode de réalisation préféré, l'appareil comprend deux éjecteurs 12. La partie supérieure 15 et la partie inférieure 16 du tube 4 sont donc reliées par une paroi transversale pourvue d'une ou plusieurs ouvertures (trous) 37, destinées au placement du ou des éjecteurs 12 du centreur inférieur 8.In the upper part 15 of the central tube 4 is a lower centralizer 8 which is composed of a cylindrical chamber 32 from which emerges (looms) one or more outlets 12 (two are shown on the Figures 1 to 4 , 5A, 6A) intended to direct the propellant gas 7. This or these outlets 12, called "ejector" or "ejection channels" through the transverse wall of the tube 4 at the openings 37, to expel the propellant gas 7 directly in the mass of the extinguishing agent 6. According to a preferred embodiment, the apparatus comprises two ejectors 12. The upper part 15 and the lower part 16 of the tube 4 are thus connected by a transverse wall provided with one or more openings (holes) 37 for the placement of the ejector (s) 12 of the lower centering device 8.

Juste en dessous des ouvertures 37 (percées dans la partie transversale reliant la partie supérieure 15 à la partie inférieure 16 du tube 4) et accolés à la paroi extérieure du tube inférieur 16, est réalisé un ou plusieurs (en rapport avec le nombre d'éjecteur 12 du centreur inférieur 8) déflecteurs 40 créant une ou des alvéoles 39 en communication directe avec la ou les ouvertures 37. Ce ou ces déflecteurs 40 formant cette ou ces alvéoles 39, dans lesquelles sont logés le ou les éjecteurs 12 dudit centreur inférieur 8, sont profilés vers le bas dans leurs parties intérieures suivant un angle d'au moins 30° par rapport à l'horizontale. Ce ou ces déflecteurs 40 servent à diriger suivant cet angle le gaz propulseur 7 dans la bouteille 2, lors de la perforation de la cartouche 5, afin de permettre ainsi un dé-tassement efficace de l'agent extincteur 6 contenu dans ladite bouteille 2.Just below the openings 37 (pierced in the transverse part connecting the upper part 15 to the lower part 16 of the tube 4) and contiguous to the outer wall of the lower tube 16, is made one or more (in relation to the number of ejector 12 of the lower centralizer 8) deflectors 40 creating one or more cavities 39 in direct communication with the aperture (s) 37. This or these deflectors 40 forming this or these cavities 39, in which are housed the ejector (s) 12 of said lower centralizer 8 , are profiled downwards in their inner parts at an angle of at least 30 ° to the horizontal. This or these baffles 40 serve to direct the propellant gas 7 in the bottle 2 at this angle, during the perforation of the cartridge 5, thereby enabling the extinguishing agent 6 contained in said bottle 2 to be effectively de-packed.

Selon un mode de réalisation préféré, dans la partie cylindrique du tube inférieur 16 est réalisé une partie conique 38 ( figure 5A ). Cette partie conique 38 relie la partie inférieure 16 et supérieure 15 du tube 4 et permet à l'agent extincteur 6 une meilleur fluidité vers et autour du centreur inférieur 8.According to a preferred embodiment, in the cylindrical part of the lower tube 16 is formed a conical portion 38 ( Figure 5A ). This conical portion 38 connects the lower portion 16 and upper 15 of the tube 4 and allows the extinguishing agent 6 a better fluidity to and around the lower centering device 8.

Le centreur inférieur 8 est illustré plus en détails aux figures 6A, 6B et 6C selon un mode de réalisation particulier. Le centreur inférieur 8 est composé d'une paroi circulaire 45 et d'une paroi transversale 46 formant une chambre cylindrique 32 pour recevoir l'ensemble piston. Le diamètre intérieur de la paroi circulaire 45 du centreur inférieur 8, légèrement plus grand que le diamètre extérieur de l'épaulement 55 du piston 9, est prévu pour contenir ledit piston 9. La hauteur de la chambre 32 est prévue pour recevoir ledit piston 9 et son déplacement lors de la percussion de la cartouche 5. Cette chambre 32 transite le gaz 7 lors de la percussion de la cartouche 5 directement vers le ou les éjecteurs 12 qui se profilent d'une ou des ouvertures 47 à la base 46 de celle-ci.The lower centering device 8 is illustrated in more detail in FIGS. 6A, 6B and 6C according to a particular embodiment. The lower centralizer 8 is composed of a circular wall 45 and a transverse wall 46 forming a cylindrical chamber 32 for receiving the piston assembly. The inside diameter of the circular wall 45 of the lower centralizer 8, slightly larger than the outside diameter of the shoulder 55 of the piston 9, is intended to contain said piston 9. The height of the chamber 32 is designed to receive said piston 9 and its displacement during the percussion of the cartridge 5. This chamber 32 transits the gas 7 during the percussion of the cartridge 5 directly to the ejectors or 12 which are profiled from one or more openings 47 to the base 46 of that -this.

La paroi transversale 46 du centreur inférieur 8 (ou la base 46 de la chambre 32) est pourvue d'une ou plusieurs ouvertures 47 d'où émerge une ou plusieurs sorties 12 destinées à diriger le gaz propulseur 7. L'étanchéité du ou des éjecteurs 12 dudit centreur inférieur 8 est obtenu par serrage du diamètre extérieur du ou des éjecteurs 12 dans la ou les ouvertures cylindriques 37 percées dans la partie transversale du tube supérieur 15.The transverse wall 46 of the lower centralizer 8 (or the base 46 of the chamber 32) is provided with one or more openings 47 from which emerges one or more outlets 12 intended to direct the propellant gas. ejectors 12 of said lower centering device 8 is obtained by clamping the outer diameter of the ejector (s) 12 in the cylindrical opening (s) 37 pierced in the transverse part of the upper tube 15.

Le ou les éjecteurs 12 sont formés de tubes cylindriques et coniques, chaque tube ayant une butée 48 permettant le placement du centreur inférieur 8 dans le tube 4 afin de positionner exactement ledit centreur inférieur 8 à l'intérieur du tube 4.- Le diamètre intérieur du ou des éjecteurs 12 est destiné au passage du gaz 7 lors de la percussion de la cartouche 5. Le ou les éjecteurs 12 permettent le passage du gaz 7 de la chambre 32 dudit centreur inférieur 8 directement dans la masse de l'agent extincteur 6 contenu dans la bouteille 2.The ejector (s) 12 are formed of cylindrical and conical tubes, each tube having a stop 48 allowing the placement of the lower centering device 8 in the tube 4 in order to exactly position said lower centering device 8 inside the tube 4.- The inside diameter or the ejectors 12 is intended for the passage of the gas 7 during the percussion of the cartridge 5. The ejectors 12 allow the passage of the gas 7 of the chamber 32 of said lower centralizer 8 directly in the mass of the extinguishing agent 6 contained in the bottle 2.

Le petit diamètre extérieur du ou des éjecteurs 12 est destiné à la fixation par serrage dans le ou les trous 37 placés au travers de la paroi transversale dudit tube 4. De préférence, la partie en bout d'éjecteur 12 est de forme conique et permet de faciliter l'introduction du ou des éjecteurs 12 dans les ouvertures 37 lors du montage.The small external diameter of the ejector (s) 12 is intended for fixing by clamping in the hole (s) 37 placed through the transverse wall of said tube 4. Preferably, the ejector end portion 12 is of conical shape and allows to facilitate the introduction of or ejectors 12 in the openings 37 during assembly.

Le diamètre extérieur de la paroi circulaire 45 dudit centreur 8 est plus grand que le diamètre intérieur de ladite paroi circulaire 45. Le diamètre extérieur de la paroi circulaire 45 dudit centreur 8 est plus petit que le diamètre intérieur de la partie supérieur 15 du tube 4 et est étudié de façon à former un espace suffisant 14 entre le diamètre intérieur de la partie supérieur 15 du tube 4 et le diamètre extérieur de la paroi circulaire 45 dudit centreur inférieur 8, pour permettre le passage de l'agent extincteur 6 lors de la vidange de celui-ci. Lors de la vidange, l'agent extincteur pénètre à l'intérieur du tube 4 par l'extrémité 17 du tube inférieur 16, et passe en dessous du centreur inférieur 8, et se faufile à l'extérieur de ce centreur 8 et le long de la cartouche 5, dans l'espace circonférentiel 14 séparent la cartouche 5 de la paroi du tube central 4,15. Le trajet de l'agent extincteur à l'intérieur du tube inférieur 16 est schématiquement illustré par la flèche 43 ( figure 5B ). The outer diameter of the circular wall 45 of said centralizer 8 is greater than the inside diameter of said circular wall 45. The outside diameter of the circular wall 45 of said centralizer 8 is smaller than the inside diameter of the upper part 15 of the tube 4 and is designed so as to form a sufficient space 14 between the inner diameter of the upper part 15 of the tube 4 and the outer diameter of the circular wall 45 of said lower centralizer 8, to allow the passage of the extinguishing agent 6 during the drain of it. During the emptying, the extinguishing agent penetrates inside the tube 4 by the end 17 of the lower tube 16, and passes below the lower centering device 8, and sneaks outside this centralizer 8 and along of the cartridge 5, in the circumferential space 14 separate the cartridge 5 from the wall of the central tube 4,15. The path of the extinguishing agent inside the lower tube 16 is schematically illustrated by the arrow 43 ( Figure 5B ).

Sur la paroi circulaire 45 sont placées en relief deux languettes longitudinales 49 destinées au placement et au centrage précis dudit centreur inférieur 8 dans la partie supérieur 15 du tube 4. Ledit tube 4 présentant également, au niveau du diamètre intérieur de sa partie supérieure 15, des rainures longitudinales de guidage destinées à recevoir lesdites languettes 49 dudit centreur inférieur 8.On the circular wall 45 are placed in relief two longitudinal tabs 49 intended for precise placement and centering of said lower centering device 8 in the upper part 15 of the tube 4. Said tube 4 also having, at the diameter inside its upper part 15, longitudinal guide grooves intended to receive said tabs 49 of said lower centering device 8.

Selon un mode de réalisation particulier, illustré à la figure 6B , la partie inférieure de la paroi circulaire 45 dudit centreur inférieur 8 est tronquée et est réalisé suivant deux plans inclinés 41 qui se rejoignent en leur milieu, afin de faciliter la pénétration et la circulation du mélange gaz-poudre. La paroi circulaire 45 comprend donc à sa base deux plans inclinés 41 parallèles en forme de « V » destinés à favoriser le passage et l'écoulement de l'agent extincteur 6. Selon un mode de réalisation particulier, illustré aux figures 6A et 6B , la paroi transversale 46 à la base de la chambre 32 comprend un bossage 42. Le bossage 42 en relief en forme de léger cône tronqué permet de maintenir centré la base du ressort de maintien 10.According to a particular embodiment, illustrated at Figure 6B , the lower portion of the circular wall 45 of said lower centralizer 8 is truncated and is made in two inclined planes 41 which meet in their middle, to facilitate the penetration and circulation of the gas-powder mixture. The circular wall 45 thus comprises at its base two parallel, V-shaped, inclined planes 41 intended to promote the passage and the flow of the extinguishing agent 6. According to one particular embodiment, illustrated in FIGS. Figures 6A and 6B , the transverse wall 46 at the base of the chamber 32 comprises a boss 42. The embossed boss 42 in the form of a truncated cone makes it possible to keep the base of the holding spring 10 centered.

Un ensemble piston est prévu à l'intérieur du centreur inférieur 8. L'ensemble piston est composé d'un piston 9 ( figures 7A et 7B ), d'un joint type o-ring 11, d'un ressort de maintien 10, d'un percuteur 13, et d'un autre joint 111, l'ensemble étant monté sur la cartouche 5 de gaz propulseur 7. Le joint 11 assure l'étanchéité du gaz propulseur 7 lors de la perforation de la cartouche 5, entre le diamètre extérieur dudit piston 9 et le diamètre intérieur dudit centreur inférieur 8. Le joint 11 confine le gaz dans la chambre 32 du centreur inférieur 8 contenant les éjecteurs 12, et empêche toutes particules de gaz 7 de pénétrer dans le tube 4. Le joint 111 assure l'étanchéité du gaz propulseur 7 lors de la perforation de la cartouche 8 entre ledit piston 9 et ladite cartouche 5 au niveau du col 33 de la cartouche 5, Le corps du piston 9 peut être fabriqué en plastique.A piston assembly is provided inside the lower centralizer 8. The piston assembly is composed of a piston 9 ( Figures 7A and 7B ), an o-ring type seal 11, a holding spring 10, a striker 13, and another seal 111, the assembly being mounted on the propellant cartridge 7. The seal 11 seals the propellant gas 7 during the perforation of the cartridge 5, between the outer diameter of said piston 9 and the inner diameter of said lower centralizer 8. The seal 11 confines the gas in the chamber 32 of the lower centralizer 8 containing the ejectors 12, and prevents any gas particles 7 from entering the tube 4. The seal 111 seals the propellant gas 7 during the perforation of the cartridge 8 between said piston 9 and said cartridge 5 at the neck 33 of the cartridge 5, the piston body 9 can be made of plastic.

Selon un mode de réalisation particulier, le piston 9 est constitué d'une pièce cylindrique monobloc comprenant un alésage traversant à plusieurs diamètres. Le piston comprend une tige cylindrique creuse 56 avec un épaulement creux 55 s'étendant radialement vers l'extérieur de la tige cylindrique 56 à une de ses extrémités. Entre l'épaulement 55 et la tige cylindrique 56, le piston 9 comprend un collier cylindrique 51 (relief cylindrique) dont le diamètre est inférieur à celui de l'épaulement 55 et légèrement supérieur à celui de la tige cylindrique 56 à hauteur de la face perpendiculaire centrale. Ce collier cylindrique 51 permet de maintenir le ressort inférieur 10 par serrage sur le diamètre intérieur dudit ressort 10.According to a particular embodiment, the piston 9 consists of a one-piece cylindrical piece comprising a through bore of several diameters. The piston comprises a hollow cylindrical rod 56 with a hollow shoulder 55 extending radially outwardly of the cylindrical rod 56 at one of its ends. Between the shoulder 55 and the cylindrical rod 56, the piston 9 comprises a cylindrical collar 51 (cylindrical relief) whose diameter is smaller than that of the shoulder 55 and slightly greater than that of the cylindrical rod 56 at the height of the face central perpendicular. This cylindrical collar 51 keeps the lower spring 10 by clamping on the inner diameter of said spring 10.

La tige cylindrique 56 comprend un alésage traversant 57 destiné au passage d'un percuteur 13, cet alésage 57 étant en communication directe avec un alésage 54 de diamètre plus grand dans l'épaulement 55. Le diamètre intérieur de l'alésage 57 traversant longitudinalement la tige cylindrique 56 dudit piston 8 est conçu pour recevoir le percuteur 13. C'est par ce seul alésage 57 que le gaz 7, lors de la percussion, est dirigé dans la chambre 32 du centreur inférieur 8 vers le ou les éjecteurs 12.The cylindrical rod 56 comprises a through bore 57 for the passage of a striker 13, this bore 57 being in direct communication with a bore 54 of larger diameter in the shoulder 55. The inner diameter of the bore 57 longitudinally crossing the cylindrical rod 56 of said piston 8 is designed to receive the striker 13. It is by this single bore 57 that the gas 7, during the percussion, is directed into the chamber 32 of the lower centralizer 8 towards the ejector (s) 12.

L'alésage 54 de l'épaulement forme un logement destiné à recevoir le col 33 de la cartouche 5. L'alésage 54 est pourvu d'une gorge 52 pour le logement d'un joint 111 (par exemple de type O-ring) et d'un léger relief circulaire (collier circulaire) 53 situé entre la gorge 52 et la base du logement intérieur 54. Le joint 111 est destiné à assurer l'étanchéité entre ledit piston 9 et le col 33 de la cartouche 5. Le relief 53 est prévu pour assurer la fixation, par clipsage, dudit piston 9 sur le col 33 de ladite cartouche 5.The bore 54 of the shoulder forms a housing for receiving the neck 33 of the cartridge 5. The bore 54 is provided with a groove 52 for the housing of a seal 111 (for example O-ring type) and a slight circular relief (circular collar) 53 located between the groove 52 and the base of the inner housing 54. The seal 111 is intended to seal between said piston 9 and the neck 33 of the cartridge 5. The relief 53 is provided for securing, by clipping, said piston 9 on the neck 33 of said cartridge 5.

Le diamètre extérieur de l'épaulement 55 est légèrement plus petit que le diamètre intérieur du centreur inférieur 8. La partie extérieure de l'épaulement 55 est pourvue d'une gorge 50 pour le logement d'un joint 11 (par exemple de type O-ring). Le joint 11 est destiné à assurer l'étanchéité entre ledit piston 9 et la chambre 32 du centreur inférieur 8.The outer diameter of the shoulder 55 is slightly smaller than the inner diameter of the lower centralizer 8. The outer portion of the shoulder 55 is provided with a groove 50 for the housing of a seal 11 (for example type O -ring). The seal 11 is intended to seal between said piston 9 and the chamber 32 of the lower centralizer 8.

Un ressort de maintien 10 est placé sur le corps du piston 9 et prend appui sur le fond du centreur inférieur 8. Le ressort 10 maintien dans sa position initiale l'ensemble piston, et ce jusqu'à la première action sur le levier 38, afin d'empêcher la perforation de la cartouche de gaz 5 lors du test de tassement ou lors de toutes manipulations équivalentes. Son action de maintien prend fin dès pressurisation lors de l'utilisation de l'appareil 1.A holding spring 10 is placed on the body of the piston 9 and bears against the bottom of the lower centralizer 8. The spring 10 holds the piston assembly in its initial position until the first action on the lever 38, in order to prevent puncture of the gas cartridge 5 during the settlement test or during any equivalent manipulations. Its holding action ends when pressurizing when using the device 1.

L'appareil contient également un percuteur 13, généralement réalisé en acier, le percuteur 13 est creux et fendu sur toute sa longueur et sert à la perforation de la cartouche 5 de gaz propulseur 7. De préférence, une extrémité est biseautée afin de faciliter la perforation. Il est placé au centre du piston 9 et prend appui, comme le ressort de maintien 10, sur le fond du centreur inférieur 8. Cet élément 13 reste immobile lors de la perforation de la cartouche 5.The apparatus also contains a striker 13, generally made of steel, the striker 13 is hollow and split along its entire length and serves for perforation of the propellant cartridge 7. Preferably, one end is bevelled to facilitate the perforation. It is placed in the center of the piston 9 and bears, like the holding spring 10, on the bottom of the lower centralizer 8. This element 13 remains stationary during the perforation of the cartridge 5.

Dans la partie 15 du tube 4 se trouve la cartouche 5 qui est un récipient contenant le gaz propulseur 7 nécessaire à la pressurisation de l'extincteur 1. Le col 33 de la cartouche 5, contenant l'opercule 34 prévu pour la perforation, est inséré directement au centre du piston 9.In the part 15 of the tube 4 is the cartridge 5 which is a container containing the propellant gas 7 necessary for the pressurization of the extinguisher 1. The neck 33 of the cartridge 5, containing the lid 34 provided for the perforation, is inserted directly in the center of the piston 9.

Faisant référence aux figures 2, 3 et 4, 5A et 5B le fonctionnement d'un appareil selon la présente invention est représenté.Referring to FIGS. 2, 3 and 4, 5A and 5B the operation of an apparatus according to the present invention is shown.

Une première étape, illustrée à la figure 2 , consiste à extraire la sécurité 29 hors du corps de vanne 24 en maintenant fermement l'appareil 1 et en effectuant une traction rapide et énergique sur la sécurité 39, jusqu'à extraction complète. Cette extraction, réalisée perpendiculairement à l'extincteur 1, entraîne automatiquement la rupture du scellé 30 inviolable. Pendant cette opération, la came de la sécurité 29 provoque le basculement et le relâchement du levier 28. Lors de son basculement, le levier de commande 28 pousse sur la tige 35 en comprimant le ressort de rappel 20. La tige 35 pousse la cartouche 5 qui entraîne dans son mouvement le piston 9 tout en comprimant le ressort de maintien 10. Le percuteur 13 étant fixe, la pointe de celui-ci perfore la cartouche 5. Sous l'effet de la perforation, le gaz 7 contenu dans la cartouche 5 est violemment confiné dans la chambre 32 du centreur inférieur 8 pour être simultanément expulsé dans la masse de l'agent extincteur 6 par le ou les canaux d'éjection 12 qui se trouvent dans la ou les alvéoles 39 créées par le ou les déflecteurs 40. Grâce au ressort de rappel 20 de la tige 35, le canal de vidange 26 est obstrué. La libération du gaz 7 contenu dans la cartouche 5 expulsé directement vers le bas dans la masse de poudre provoque un détassement efficace de l'agent extincteur 6 et permet son homogénéisation.A first step, illustrated in figure 2 , is to extract the security 29 out of the valve body 24 by firmly holding the device 1 and making a quick and energetic pull on the security 39, until complete extraction. This extraction, carried out perpendicularly to the fire extinguisher 1, automatically causes the rupture of the tamperproof seal. During this operation, the safety cam 29 causes the tilting and releasing the lever 28. During its tilting, the control lever 28 pushes on the rod 35 by compressing the return spring 20. The rod 35 pushes the cartridge 5 which drives in its movement the piston 9 while compressing the spring of 10. Since the striker 13 is stationary, the tip thereof pierces the cartridge 5. Under the effect of the perforation, the gas 7 contained in the cartridge 5 is violently confined in the chamber 32 of the lower centralizer 8 to be simultaneously expelled into the mass of the extinguishing agent 6 by the ejection channel or channels 12 which are in the cell or cells 39 created by the deflector (s) 40. Thanks to the return spring 20 of the rod 35, the channel drain 26 is obstructed. The release of the gas 7 contained in the cartridge 5 expelled directly down into the mass of powder causes an effective detachment of the extinguishing agent 6 and allows its homogenization.

Dans un second temps, illustré aux figures 3 , 5A et 5B , l'agent extincteur 6 pénètre sous l'effet de la pression, à l'intérieur du tube 4, en particulier à l'extrémité 17 du tube inférieur 16, et passe en dessous du centreur inférieur 8, se faufile à l'extérieur de ce centreur 8 et le long de la cartouche 5, dans l'espace circonférentiel 14 séparent la cartouche 5 de la paroi du tube central 4,15 traverse l'anneau extérieur 19 du centreur supérieur 18 et enfin est bloqué par la tige 35 qui obstrue le canal de vidange 26. L'extincteur 1 est pressurisé et prêt à l'utilisation.In a second step, illustrated figures 3 , 5A and 5B , the extinguishing agent 6 enters under the effect of pressure, inside the tube 4, in particular at the end 17 of the lower tube 16, and passes below the lower centering device 8, sneaks outside of this centralizer 8 and along the cartridge 5, in the circumferential space 14 separate the cartridge 5 from the wall of the central tube 4,15 passes through the outer ring 19 of the upper centralizer 18 and finally is blocked by the rod 35 which obstructs drain channel 26. Extinguisher 1 is pressurized and ready for use.

La figure 4 montre alors la vidange de l'extincteur 1. Une traction manuelle sur le levier 28 de commande provoque une nouvelle fois un déplacement de la tige 35 et permet instantanément la vidange de l'agent extincteur 6. Le ressort de rappel 20 replace la tige 35 dans sa position initiale dès relâchement de la traction sur le levier de commande 28. Le canal de vidange 26 est ainsi à nouveau obstrué. Ces deux dernières opérations peuvent être exécutées autant de fois que nécessaire, jusqu'à expulsion complète de l'agent extincteur contenu dans la bouteille.The figure 4 then shows the emptying of the fire extinguisher 1. A manual pull on the control lever 28 again causes a displacement of the rod 35 and instantly allows the extinguishing agent 6 to be drained. The return spring 20 replaces the rod 35 in its initial position as soon as the traction on the control lever 28 is released. The drain channel 26 is thus again obstructed. These last two operations can be performed as many times as necessary, until complete expulsion of the extinguishing agent contained in the bottle.

Selon un mode de réalisation particulier, l'appareil est caractérisé en ce que le ou lesdits canaux d'éjection du gaz propulseur logés dans la ou les alvéoles 39 formées par le ou les déflecteurs 40 sont prévus à une hauteur comprise entre la demi hauteur inférieure et le troisième quart inférieur de la hauteur interne dudit corps. Ceci est schématiquement illustré aux figures 8A et 8B qui représentent des vues en coupe schématique de la bouteille 2 d'un appareil extincteur selon un mode de réalisation particulier comprenant un tube 4 pourvu de deux alvéoles 39. La figure 8A illustre un exemple de corps 2 d'extincteur d'un diamètre de +/- 86 mm. La figure 8B illustre un exemple de corps 2 d'extincteur d'un diamètre de +/- 100 mm. Selon un mode de réalisation particulier, la ou les alvéoles 39 sont de préférence localisées dans la zone A i.e. entre la demi hauteur inférieure et le troisième quart inférieur de la hauteur interne de la bouteille 2.According to a particular embodiment, the apparatus is characterized in that the said propellant gas ejection channel (s) housed in the cell (s) 39 formed by the deflector (s) 40 are provided at a height between the lower half height. and the lower third quarter of the internal height of said body. This is schematically illustrated in Figures 8A and 8B which represent schematic sectional views of the bottle 2 of an extinguisher apparatus according to a particular embodiment comprising a tube 4 provided with two cells 39. figure 8A illustrates an example of extinguisher body 2 with a diameter of +/- 86 mm. The Figure 8B illustrates an example of extinguisher body 2 with a diameter of +/- 100 mm. According to a particular embodiment, the cell (s) 39 are preferably located in the zone A ie between the lower half height and the third lower quarter of the internal height of the bottle 2.

Grace à la position et aux angles du ou des déflecteurs localisés sur le tube central, l'éjection du gaz dans la bouteille est optimalisée et permet un dé-tassement efficace de l'agent extincteur de sorte qu'il reste moins de 10%, de préférence moins de 8%, de préférence moins de 5% d'agent extincteur dans la bouteille une fois celle-ci vidée, conformément aux exigences de la norme EN3.Thanks to the position and the angles of the baffle or deflectors located on the central tube, the ejection of the gas in the bottle is optimized and allows an effective de-packing of the extinguishing agent so that it remains less than 10%, preferably less than 8%, preferably less than 5% of extinguishing agent in the bottle once it has been emptied, in accordance with the requirements of the EN3 standard.

La description donnée ci-dessus se rapporte à un appareil extincteur et à son activation en « deux » coups. Dans ledit appareil utilisé en « deux coups » la pressurisation de l'extincteur est réalisée par une première action sur le levier de commande ; cette opération doit être réalisée automatiquement lors de l'extraction de la sécurité. Une deuxième action sur le levier permet la vidange de l'agent extincteur. Cependant, la présente invention peut également être appliquée à un appareil en « un » coup. Dans un appareil en « un coup » la pressurisation de l'extincteur et la vidange de l'agent extincteur sont réalisés simultanément par une action unique du levier de commande. Les appareils de la présente invention sont donc réalisés conformément à la norme EN3 pour la fabrication d'extincteurs.The description given above relates to a fire extinguisher and its activation in "two" shots. In said apparatus used in "two shots" the pressurization of the fire extinguisher is achieved by a first action on the control lever; this must be done automatically when you retrieve the security. A second action on the lever allows the extinguishing agent to be drained. However, the present invention can also be applied to a "one-shot" apparatus. In a "one-shot" device the pressurization of the fire extinguisher and the extinguishing agent are carried out simultaneously by a single action of the control lever. The devices of the present invention are therefore made in accordance with the EN3 standard for the manufacture of fire extinguishers.

La présente invention se rapporte également à l'utilisation d'un appareil extincteur d'incendie, de préférence du type à pression auxiliaire pour l'extinction d'un incendie. Un appareil selon l'invention peut par exemple être utilisé dans le secteur automobile, le secteur professionnel incendie, ou le secteur domestique.The present invention also relates to the use of a fire extinguisher apparatus, preferably of the auxiliary pressure type for extinguishing a fire. An apparatus according to the invention can for example be used in the automotive sector, the professional fire sector, or the domestic sector.

Claims (22)

Appareil extincteur d'incendie (1) comprenant : - un corps (2) contenant un agent extincteur (6) de type poudre extinctrice, - une tête d'extincteur (3) fixée audit corps (2) et destinée à recevoir les accessoires de commande de l'appareil, et - un tube central (4), prévu à l'intérieur dudit corps (2), dans lequel est placée une cartouche (5) sous pression contenant un gaz propulseur (7), caractérisé en ce que ledit corps comprend un centreur inférieur (8), prévus à l'intérieur dudit tube (4), pourvu d'un ou plusieurs canaux d'éjection (12) traversant la paroi transversale dudit tube (4) et permettant d'expulser le gaz propulseur(7) contenu dans ladite cartouche (5) directement dans l'agent extincteur (6).Fire extinguisher apparatus (1) comprising: a body (2) containing an extinguishing agent (6) of the fire-extinguishing powder type, an extinguisher head (3) fixed to said body (2) and intended to receive the control accessories of the apparatus, and - a central tube (4), provided inside said body (2), in which is placed a cartridge (5) under pressure containing a propellant (7), characterized in that said body comprises a lower centralizer (8), provided inside said tube (4), provided with one or more ejection channels (12) passing through the transverse wall of said tube (4) and allowing expelling the propellant (7) contained in said cartridge (5) directly into the extinguishing agent (6). Appareil selon la revendication 1, caractérisé en ce que les extrémités du ou desdits canaux d'éjection (12) sont logée(s) dans une ou des alvéoles (39) formées par un ou des déflecteur(s) (40) localisés sur la paroi extérieure dudit tube (4).Apparatus according to claim 1, characterized in that the ends of said at least one ejection channel (12) are accommodated in one or more cells (39) formed by one or more deflectors (40) located on the outer wall of said tube (4). Appareil selon la revendication 1 ou 2, caractérisé en ce que la cartouche (5) est essentiellement cylindrique et muni d'un col (33) contenant un opercule (34) prévu pour la perforation de la cartouche.Apparatus according to claim 1 or 2, characterized in that the cartridge (5) is substantially cylindrical and provided with a neck (33) containing a cover (34) provided for the perforation of the cartridge. Appareil selon l'une quelconque des revendications 1 à 3, caractérisé en ce que la cartouche (5) est placée à l'envers dans ledit tube central (4) avec son col et son opercule orienté vers la base du corps (2).Apparatus according to any one of claims 1 to 3, characterized in that the cartridge (5) is placed upside down in said central tube (4) with its neck and its operculum oriented towards the base of the body (2). Appareil selon l'une quelconque des revendications de 1 à 4, caractérisé en ce que le tube central (4) est divisé en une partie supérieure (15) et une partie inférieure (16) dont le diamètre extérieur est plus petit que le diamètre extérieur de la partie supérieure dudit tube.Apparatus according to any one of claims 1 to 4, characterized in that the central tube (4) is divided into an upper part (15) and a lower part (16) whose outer diameter is smaller than the outer diameter of the upper part of said tube. Appareil selon la revendication 5, caractérisé en ce que la cartouche (5) est montée à l'intérieur de la partie supérieure (15) dudit tube central, et que le diamètre extérieur de ladite cartouche est plus petit que le diamètre intérieur de ladite partie supérieure du tube, créant un espace (14) circonférentiel entre ladite cartouche (5) et la partie supérieure (15) dudit tube.Apparatus according to claim 5, characterized in that the cartridge (5) is mounted within the upper portion (15) of said central tube, and that the outer diameter of said cartridge is smaller than the inner diameter of said portion upper tube, creating a circumferential space (14) between said cartridge (5) and the upper part (15) of said tube. Appareil selon l'une quelconque des revendications de 1 à 6, caractérisé en ce que ledit centreur inférieur (8) est prévu dans la partie supérieure (15) dudit tube central au niveau du col (33) de ladite cartouche.Apparatus according to any one of claims 1 to 6, characterized in that said lower centralizer (8) is provided in the upper portion (15) of said central tube at the neck (33) of said cartridge. Appareil selon l'une quelconque des revendications 1 à 7, caractérisé en ce que le ou lesdits canaux d'éjection (12) sont prévus à une hauteur comprise entre la demi hauteur inférieure et le troisième quart inférieur de la hauteur interne dudit corps (2).Apparatus according to any one of claims 1 to 7, characterized in that the at least one ejection channel (12) is provided at a height between the lower half height and the lower third quarter of the internal height of said body (2). ). Appareil selon l'une quelconque des revendications 1 à 8, caractérisé en ce que le ou lesdits canaux éjecteurs sont dirigés vers le bas et transitent de l'intérieur du tube central, vers le coeur de la masse de poudre.Apparatus according to any one of claims 1 to 8, characterized in that the said nozzles or channels are directed downwards and pass from the interior of the central tube towards the core of the mass of powder. Appareil selon l'une quelconque des revendications de 1 à 9, caractérisé en ce que ledit centreur inférieur (8) est composé d'une chambre cylindrique (32) contenant un ensemble piston lequel est monté sur la cartouche (5), de préférence par clipsageApparatus according to any one of claims 1 to 9, characterized in that said lower centralizer (8) is composed of a cylindrical chamber (32) containing a piston assembly which is mounted on the cartridge (5), preferably by clipping Appareil selon la revendication 10, caractérisé en ce que l'ensemble piston comprend : - un piston (9), - un joint (111) assurant l'étanchéité du gaz propulseur lors de la perforation de la cartouche entre ledit piston et ladite cartouche au niveau du col de la cartouche, - un joint (11) assurant l'étanchéité du gaz propulseur lors de la perforation de la cartouche entre le diamètre extérieur dudit piston et le diamètre intérieur dudit centreur inférieur, - un percuteur (13) placé au centre du piston (9) en prenant appui sur le fond dudit centreur inférieur (8) permettant de perforer la cartouche au niveau de l'opercule (34) de ladite cartouche, et - un ressort inférieur (20) placé au centre du piston (9) en prenant appui sur le fond dudit centreur inférieur (8), permettant de contrôler la position de l'ensemble piston. Apparatus according to claim 10, characterized in that the piston assembly comprises: a piston (9), a seal (111) sealing the propellant gas during the perforation of the cartridge between said piston and said cartridge at the neck of the cartridge, a seal (11) sealing the propellant gas during perforation of the cartridge between the outside diameter of said piston and the inside diameter of said lower locator, a striker (13) placed in the center of the piston (9) bearing on the bottom of said lower centralizer (8) for perforating the cartridge at the cover (34) of said cartridge, and - A lower spring (20) placed in the center of the piston (9) bearing on the bottom of said lower centralizer (8) for controlling the position of the piston assembly. Appareil selon la revendication 1, caractérisé en ce que ladite tête d'extincteur (3) comprend : - un corps de vanne (24) comprenant principalement un canal central (27), destiné à recevoir une tige, et un canal latéral (26), constituant un canal de vidange de l'agent extincteur, - un levier de commande (28) relié audit corps de vanne (24) par un axe (25), - une sécurité (29), permettant de protéger toutes actions sur ledit levier de commande, - un scellé (30), permettant de visualiser si l'extincteur a été utilisé ou non, - une tige (35), monté dans ledit canal central (27) du corps de vanne (24), et contrôlant l'ouverture et la fermeture dudit canal de vidange (26), et - un centreur supérieur (18), permettant de centrer ladite tige (35) vis-à-vis dudit canal de vidange (26). Apparatus according to claim 1, characterized in that said extinguisher head (3) comprises: a valve body (24) mainly comprising a central channel (27) intended to receive a rod, and a lateral channel (26) constituting a channel for emptying the extinguishing agent, a control lever (28) connected to said valve body (24) by an axis (25), - a security (29), to protect all actions on said control lever, a seal (30), making it possible to visualize whether the extinguisher has been used or not, - a rod (35), mounted in said central channel (27) of the valve body (24), and controlling the opening and closing of said drain channel (26), and - An upper centralizer (18), for centering said rod (35) vis-à-vis said drain channel (26). Appareil selon la revendication 12, caractérisé en ce que ledit centreur supérieur (18) est composé d'une chambre cylindrique à la base de laquelle est monté un anneau de maintien (19) contenant des ouvertures pour le passage de l'agent extincteur.Apparatus according to claim 12, characterized in that said upper centralizer (18) is composed of a cylindrical chamber at the base of which is mounted a holding ring (19) containing openings for the passage of the extinguishing agent. Appareil selon la revendication 12 ou 13, caractérisé en ce que ladite tige (35) comprend : - un ressort de rappel (20), prenant appui sur ledit anneau de maintien (19) du centreur supérieur (18), - un joint supérieur (21) assurant l'étanchéité du canal central au-delà du canal de vidange, - un joint central (22) assurant l'étanchéité au-devant du canal de vidange, et - un joint inférieur (23) assurant l'étanchéité de la chambre du centreur supérieur. Apparatus according to claim 12 or 13, characterized in that said rod (35) comprises: a return spring (20) bearing on said retaining ring (19) of the upper centering device (18), - an upper seal (21) sealing the central channel beyond the drain channel, - a central seal (22) sealing the front of the drain channel, and - A lower seal (23) sealing the chamber of the upper centralizer. Procédé d'extinction d'incendie utilisant un appareil extincteur (1) comprenant un corps (2) contenant un agent extincteur (6) de type poudre extinctrice, une tête d'extincteur (3) fixée audit corps et un tube central (4), prévu à l'intérieur dudit corps (2), dans lequel est placé une cartouche (5) sous pression contenant un gaz propulseur (7), ledit procédé comprennent une pressurisation de l'extincteur et la vidange de l'agent extincteur,
caractérisé en ce que la pressurisation comprend les étapes consécutives de: a) percussion de ladite cartouche (5) permettant de libérer le gaz propulseur (7) contenu dans ladite cartouche, b) expulsion du gaz propulseur à la sortie de la cartouche directement dans l'agent extincteur (6), c) mélange du gaz propulseur et de l'agent extincteur, d) transport du mélange du gaz propulseur et de l'agent extincteur vers la tête d'extincteur (3). Fire extinguishing method using an extinguisher apparatus (1) comprising a body (2) containing extinguishing agent (6) of the fire-extinguishing powder type, an extinguisher head (3) attached to said body and a central tube (4) provided inside said body (2), in which is placed a cartridge (5) under pressure containing a propellant (7), said method comprises a pressurization of the extinguisher and the emptying of the extinguishing agent,
characterized in that the pressurization comprises the consecutive steps of: a) percussion of said cartridge (5) for releasing the propellant (7) contained in said cartridge, b) expulsion of the propellant gas at the outlet of the cartridge directly into the extinguishing agent (6), c) mixing the propellant and extinguishing agent, d) transporting the mixture of propellant and extinguishing agent to the extinguisher head (3). Procédé selon la revendication 15, caractérisé en ce que le gaz propulseur est expulsé à la sortie de la cartouche (5) dans l'agent extincteur par un ou des canaux d'éjection (12) traversant la paroi transversale dudit tube central (4) et dirigés vers le bas , le gaz étant propulsé à un angle d'au moins 30 ° par rapport à la direction d'éjection grâce à un ou des déflecteurs (40).Process according to Claim 15, characterized in that the propellant is expelled at the outlet of the cartridge (5) into the extinguishing medium via one or more ejection channels (12) passing through the transverse wall of said central tube (4). and directed downwards, the gas being propelled at an angle of at least 30 ° with respect to the ejection direction by means of one or more deflectors (40). Procédé selon la revendication 15 ou 16, caractérisé en ce que le gaz propulseur est expulsé à la sortie de la cartouche (5) à une hauteur comprise entre la demi hauteur inférieure et le troisième quart inférieur de la hauteur interne dudit corps (2).Method according to claim 15 or 16, characterized in that the propellant is expelled at the outlet of the cartridge (5) at a height between the lower half height and the third lower quarter of the internal height of said body (2). Procédé selon l'une quelconque des revendications 15 à 17, caractérisé en ce que le mélange du gaz propulseur et de l'agent extincteur pénètre à l'intérieur du tube central (4) par la base (17) dudit tube (4) et est transporté à l'intérieur du tube central (4) le long de ladite cartouche (5) vers la vers la tête d'extincteur (3).Process according to any one of Claims 15 to 17, characterized in that the mixture of the propellant and the extinguishing agent penetrates inside the central tube (4) via the base (17) of the said tube (4) and is conveyed inside the central tube (4) along said cartridge (5) towards the towards the extinguisher head (3). Procédé selon l'une quelconque des revendications 15 à 18, caractérisé en ce que l'expulsion du gaz propulseur et la pénétration à l'intérieur du tube central du mélange du gaz propulseur et de l'agent extincteur sont spatialement séparées.Process according to any one of Claims 15 to 18, characterized in that the expulsion of the propellant gas and the penetration into the central tube of the mixture of the propellant gas and the extinguishing agent are spatially separated. Procédé selon l'une quelconque des revendications 15 à 19, caractérisé en ce qu'un appareil extincteur selon l'une quelconque des revendications 1 à 14 est mis en oeuvre.Process according to one of Claims 15 to 19, characterized in that an extinguisher apparatus according to one of Claims 1 to 14 is used. Procédé selon l'une quelconque des revendications 15 à 20, caractérisé en ce que la pressurisation dudit extincteur et la vidange de l'agent extincteur sont réalisés simultanément.Process according to any one of Claims 15 to 20, characterized in that the pressurisation of said extinguisher and the emptying of the extinguishing agent are carried out simultaneously. Procédé selon l'une quelconque des revendications 15 à 20, caractérisé en ce que la pressurisation dudit extincteur et la vidange de l'agent extincteur sont réalisés de manière consécutive.Process according to any one of Claims 15 to 20, characterized in that the pressurisation of said extinguisher and the emptying of the extinguishing agent are carried out consecutively.
EP08151614A 2007-02-23 2008-02-19 Fire extinguisher and its use Active EP1961458B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL08151614T PL1961458T3 (en) 2007-02-23 2008-02-19 Fire extinguisher and its use

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE2007/0086A BE1017476A3 (en) 2007-02-23 2007-02-23 FIRE EXTINGUISHING APPARATUS AND USE THEREOF

Publications (3)

Publication Number Publication Date
EP1961458A2 true EP1961458A2 (en) 2008-08-27
EP1961458A3 EP1961458A3 (en) 2008-11-26
EP1961458B1 EP1961458B1 (en) 2011-04-13

Family

ID=38542015

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08151614A Active EP1961458B1 (en) 2007-02-23 2008-02-19 Fire extinguisher and its use

Country Status (5)

Country Link
EP (1) EP1961458B1 (en)
AT (1) ATE505240T1 (en)
BE (1) BE1017476A3 (en)
DE (1) DE602008006113D1 (en)
PL (1) PL1961458T3 (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012025623A1 (en) * 2010-08-27 2012-03-01 Delta Extinctors S.A. Valve head for a fire extinguisher, and use thereof
AU2012244106B2 (en) * 2011-10-25 2014-09-18 Kidde Technologies, Inc Automatic fire extinguishing system with internal dip tube
EP2915565A1 (en) * 2014-03-07 2015-09-09 Edgar Roberto Solis Perez Trigger unit for a firefighting installation
US9192798B2 (en) 2011-10-25 2015-11-24 Kidde Technologies, Inc. Automatic fire extinguishing system with gaseous and dry powder fire suppression agents
US9308406B2 (en) 2011-10-25 2016-04-12 Kidde Technologies, Inc. Automatic fire extinguishing system having outlet dimensions sized relative to propellant gas pressure
US9463341B2 (en) 2011-10-25 2016-10-11 Kidde Technologies, Inc. N2/CO2 fire extinguishing system propellant gas mixture
CN107970542A (en) * 2017-12-25 2018-05-01 安徽盛图消防科技有限公司 A kind of hand-held Fire extinguishing club
CN110559581A (en) * 2014-06-24 2019-12-13 瑞索有限公司 Piercing device for portable fire extinguisher and method for starting portable fire extinguisher
US10926119B1 (en) 2014-06-24 2021-02-23 Rusoh Inc. Fire extinguisher with internal mixing and gas cartridge
US11305140B1 (en) 2019-05-31 2022-04-19 Rusoh, Inc. Fire extinguisher with internal mixing and gas cartridge
US11383115B1 (en) 2014-09-08 2022-07-12 Hector Rousseau Smart fire extinguisher

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9993673B2 (en) * 2014-06-24 2018-06-12 Hector Rousseau Fire extinguisher with internal mixing and gas cartridge
DE102017002133B4 (en) 2016-03-11 2022-03-31 Feuerschutz Jockel Gmbh & Co. Kg fire extinguisher
DE102017002134B4 (en) 2016-03-11 2023-02-09 Feuerschutz Jockel Gmbh & Co. Kg Fire extinguishers and their use

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0657188A1 (en) 1993-11-12 1995-06-14 Desautel Powder type fire extinguisher

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR449925A (en) * 1912-10-28 1913-03-11 Paul Jules Ruez Fire extinguisher
GB365277A (en) * 1930-12-19 1932-01-21 Harold Ewart Mitchell Improvements relating to fire extinguishers
FR2094240A5 (en) * 1970-06-15 1972-02-04 Sicli
BE866485A (en) * 1978-04-27 1978-08-14 Bavaria Feuerlosch Appbau Albe POWDER EXTINGUISHER WITH PRESSURE AGENT CARTRIDGE LOCATED IN THE CENTER OF THE DISCHARGE TUBE
FR2850875B1 (en) * 2003-02-07 2005-04-15 Eurofeu Sa FIRE EXTINGUISHER HAVING A PLASTIC RESERVOIR

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0657188A1 (en) 1993-11-12 1995-06-14 Desautel Powder type fire extinguisher

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1019460A3 (en) * 2010-08-27 2012-07-03 Delta Extinctors S A FIRE EXTINGUISHER VALVE HEAD AND USE THEREOF.
WO2012025623A1 (en) * 2010-08-27 2012-03-01 Delta Extinctors S.A. Valve head for a fire extinguisher, and use thereof
US9463341B2 (en) 2011-10-25 2016-10-11 Kidde Technologies, Inc. N2/CO2 fire extinguishing system propellant gas mixture
AU2012244106B2 (en) * 2011-10-25 2014-09-18 Kidde Technologies, Inc Automatic fire extinguishing system with internal dip tube
US9192798B2 (en) 2011-10-25 2015-11-24 Kidde Technologies, Inc. Automatic fire extinguishing system with gaseous and dry powder fire suppression agents
US9302128B2 (en) 2011-10-25 2016-04-05 Kidde Technologies, Inc. Automatic fire extinguishing system with internal dip tube
US9308406B2 (en) 2011-10-25 2016-04-12 Kidde Technologies, Inc. Automatic fire extinguishing system having outlet dimensions sized relative to propellant gas pressure
EP2915565A1 (en) * 2014-03-07 2015-09-09 Edgar Roberto Solis Perez Trigger unit for a firefighting installation
CN110559581A (en) * 2014-06-24 2019-12-13 瑞索有限公司 Piercing device for portable fire extinguisher and method for starting portable fire extinguisher
US10926119B1 (en) 2014-06-24 2021-02-23 Rusoh Inc. Fire extinguisher with internal mixing and gas cartridge
IL281678B (en) * 2014-06-24 2022-08-01 Rusoh Inc Fire extinguisher with internal mixing and gas cartridge
US11896858B2 (en) 2014-06-24 2024-02-13 Rusoh, Inc. Fire extinguisher with internal mixing and gas cartridge
US11383115B1 (en) 2014-09-08 2022-07-12 Hector Rousseau Smart fire extinguisher
CN107970542A (en) * 2017-12-25 2018-05-01 安徽盛图消防科技有限公司 A kind of hand-held Fire extinguishing club
US11305140B1 (en) 2019-05-31 2022-04-19 Rusoh, Inc. Fire extinguisher with internal mixing and gas cartridge

Also Published As

Publication number Publication date
DE602008006113D1 (en) 2011-05-26
PL1961458T3 (en) 2011-09-30
ATE505240T1 (en) 2011-04-15
EP1961458B1 (en) 2011-04-13
EP1961458A3 (en) 2008-11-26
BE1017476A3 (en) 2008-10-07

Similar Documents

Publication Publication Date Title
EP1961458B1 (en) Fire extinguisher and its use
EP0372048B1 (en) Pressurized container provided with a valve and a valve actuation device
CA2241947C (en) Cartridge containing two liquids
WO1984001930A1 (en) Thrust regulator
EP0681548A1 (en) Rechargeable aerosol can using air as the propellant
CA1314026C (en) Rapid discharge estinguisher; method for its manufacturing
EP2416895B1 (en) Cleaning device for spray gun
EP1246657B1 (en) Needleless syringe operating by impact tube effect, with prior lateral retention of active principle
FR3099144A1 (en) Pressure vessel valve
BE1019460A3 (en) FIRE EXTINGUISHER VALVE HEAD AND USE THEREOF.
FR2944378A1 (en) PACKAGING DEVICE FOR STORING AND / OR STORING A RADIOACTIVE LIQUID MEDIUM
EP2039606A1 (en) Installation for filling an aerosol container with a liquid, such as paint
EP1797963B1 (en) Mixing chamber and spraying device comprising said chamber
EP0792665B1 (en) Liquid spraying fire extinguisher
EP4126692B1 (en) Cap suitable for containing a fluid
FR2846699A1 (en) Disperser for liquid that destroys valuables in attempted theft has pyrotechnic gas generator and piston that pushes pouch of liquid against blunt-tipped perforator
EP1532284B1 (en) Device for injecting a treatment gas into a molten metal
BE696678A (en)
WO2017103405A1 (en) Device for supplying a pressurized material and fire extinguisher including such a device
EP0100702B1 (en) Igniting device for oxygen cutting lances
FR2484263A3 (en) Compressed gas operated fire extinguisher - has gas and immersion pipes extending in opposite directions towards periphery of cylindrical container
FR2707886A1 (en) Device for removing a fluid from inside a container, as well as such a container
FR2880517A1 (en) Brine injecting needle for food products such as pork comprises hollow tube with pointed tip and radial hole, with two or four tubes grouped together
FR2950327A1 (en) Stopper for conservation and diffusion of e.g. liquid, in inner side of bottle, has tubular disk assembled in wall of reservoir in mobile manner, where inlets of cavities enter internal housing of reservoir
FR3077014A1 (en) AEROSOL CONTAINER BLEEDING DEVICE AND ASSEMBLY COMPRISING AEROSOL CONTAINER AND SUCH A BLEEDING DEVICE

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

17P Request for examination filed

Effective date: 20080307

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA MK

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA MK

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

AXX Extension fees paid

Extension state: RS

Payment date: 20090407

Extension state: BA

Payment date: 20090407

Extension state: AL

Payment date: 20090407

Extension state: MK

Payment date: 20090407

17Q First examination report despatched

Effective date: 20091110

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 BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA MK RS

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: LANGUAGE OF EP DOCUMENT: FRENCH

REF Corresponds to:

Ref document number: 602008006113

Country of ref document: DE

Date of ref document: 20110526

Kind code of ref document: P

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602008006113

Country of ref document: DE

Effective date: 20110526

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20110413

LTIE Lt: invalidation of european patent or patent extension

Effective date: 20110413

REG Reference to a national code

Ref country code: PL

Ref legal event code: T3

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

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: 20110413

Ref country code: PT

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: 20110816

Ref country code: NO

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: 20110713

Ref country code: HR

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: 20110413

Ref country code: LT

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: 20110413

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

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

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: 20110413

Ref country code: IS

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: 20110813

Ref country code: LV

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: 20110413

Ref country code: ES

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: 20110724

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: 20110413

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: 20110413

Ref country code: SI

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: 20110413

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: 20110714

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

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: 20110413

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

Ref country code: CZ

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: 20110413

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: 20110413

Ref country code: EE

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: 20110413

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: 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: 20110413

Ref country code: RO

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: 20110413

Ref country code: SK

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: 20110413

26N No opposition filed

Effective date: 20120116

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602008006113

Country of ref document: DE

Effective date: 20120116

BERE Be: lapsed

Owner name: DELTA EXTINCTORS

Effective date: 20120228

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

Ref country code: MC

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

Effective date: 20120229

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20120219

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: 20120229

Ref country code: CH

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

Effective date: 20120229

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20121031

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: 20120219

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 602008006113

Country of ref document: DE

Effective date: 20120901

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

Ref country code: BE

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

Effective date: 20120228

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

Ref country code: GB

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

Effective date: 20120219

Ref country code: FR

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

Effective date: 20120229

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

Ref country code: PL

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

Effective date: 20120219

REG Reference to a national code

Ref country code: PL

Ref legal event code: LAPE

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

Ref country code: BG

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: 20110713

Ref country code: DE

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

Effective date: 20120901

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

Ref country code: MT

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: 20110413

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

Ref country code: TR

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: 20110413

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: 20120219

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

Ref country code: HU

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: 20080219