EP0792665B1 - Liquid spraying fire extinguisher - Google Patents

Liquid spraying fire extinguisher Download PDF

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Publication number
EP0792665B1
EP0792665B1 EP97420030A EP97420030A EP0792665B1 EP 0792665 B1 EP0792665 B1 EP 0792665B1 EP 97420030 A EP97420030 A EP 97420030A EP 97420030 A EP97420030 A EP 97420030A EP 0792665 B1 EP0792665 B1 EP 0792665B1
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EP
European Patent Office
Prior art keywords
liquid
additive
outlet
sprayed
bottle
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.)
Expired - Lifetime
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EP97420030A
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German (de)
French (fr)
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EP0792665A1 (en
Inventor
Patrick Lhomme
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SOCIETE DES EXTINCTEURS ANDRIEU
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EXTINCTEURS ANDRIEU Ste
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    • 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
    • A62C13/70—Portable extinguishers which are permanently pressurised or pressurised immediately before use with extinguishing material and pressure gas being stored in separate containers characterised by means for releasing the pressure gas

Definitions

  • a fire extinguisher of this type in which the means of receipt of the additive consist of a cartridge housed inside the tank under conditions suitable for isolating the additive from the liquid to be sprayed, on the other hand, and pressurized propellant, on the other hand, as long as the lid of the bottle has not been perforated and to communicate the interior of the cartridge with the inside of the cistern after perforation of the cover thereof, so that the propellant pressure comes to apply to inside the additive cartridge.
  • the wall of it is weakened locally, so that it opens under this pressure, a mixture occurs of the additive to the liquid to be sprayed and that it establishes on the mixture a gas pressure tending to expel this mixing through the outlet for the liquid to be sprayed, of way controlled by action of an operator on the means sealing or opening this outlet.
  • the object of the present invention is to remedy these disadvantages.
  • the invention provides a fire extinguisher of the type indicated in the preamble, characterized in that the means of receiving the additive are constituted by the bottle itself, which contains the gas pressure booster and additive without partitioning between them, so that the propellant drives the additive to the liquid to be sprayed, through the outlet for the propellant, when the cover has been perforated.
  • the additive is a liquid, which facilitates its complete expulsion and its mixing with the liquid to spray.
  • the entire expulsion of the additive is in further facilitated, in the case of a fire extinguisher intended for be used in a specific orientation in which the outlet for the propellant is turned upwards, if, according to a preferred embodiment, the bottle of flush has internally a waterproof dip tube of reassembled, tightly connected to the outlet for the propellant and opening down into an area bottom of the cistern, with reference to said orientation.
  • the gas propellant and additive cannot leave the bottle hunting only by ascending in this dip tube, towards the outlet for the propellant, and the propellant start by driving the additive out of the bottle flush, towards the liquid to be sprayed, before escaping himself from the cistern to put this liquid spraying under pressure; to ensure an eviction as complete as possible of the additive before the gas propellant does not escape from the cistern, we do preferably open the dip tube as low as possible in it.
  • Expulsion of the additive by pressurized gas after perforation of the seal may be sufficient energetic to ensure good dispersion of the additive in the liquid to be sprayed but you can also provide, according to a preferred embodiment of the invention, that the extinguisher includes means for favor this dispersion.
  • these means comprise, at inside the tank but outside the cork bottle, a waterproof dip tube of dispersion, tightly connected to the outlet for the propellant and opening down into the reservoir, preferably within the liquid to be sprayed, with reference to said orientation.
  • the tank has internally, outside the cork bottle, a waterproof ascent tube, tightly connected to the outlet for the liquid to spray and opening down into an area bottom of the tank, preferably as low as possible in this one, with reference to said orientation, to prevent access to the liquid to be sprayed, mixed additive, at the exit planned for him only by ascent to inside this dip tube.
  • a fire extinguisher can present two mutually juxtaposed dip tubes, one of which is connected to the outlet for the propellant, so as to favor the dispersion of the additive in the liquid to be sprayed after perforation of the lid of the bottle, and the other of which is connected to the outlet for the liquid to be sprayed, to ensure that that gas under pressure causes expulsion as a priority of the mixture of this liquid to be sprayed with the additive, by ascent to the outlet for the liquid to be sprayed, when it is opened under the control of a operator, before he can escape himself from the tank.
  • the dip tube does not have to be dispersion of the additive opens as low, in the tank, that the ascent tube of the mixture of spray liquid and additive.
  • the tube additive dispersion plunger opens inside tank noticeably higher than the dip tube upward movement of the mixture, for example halfway up the liquid to be sprayed, considering the fire extinguisher in said orientation, in order to ensure optimal dispersion additive in the liquid to be sprayed, without risk of direct passage of part of the additive between the tube dispersion plunger and riser tube to the outlet for the liquid to be sprayed.
  • the tank has a liquid filling port at spray and an attached cover, especially removable, on the tank and shutter so sealing the filling opening, the door in solidarity, in particular removable, the bottle of hunting which is dimensioned so as to be able to cross the filling opening.
  • the cover carries the means perforation controls, which simplifies considerably the realization of the tank and the maintenance operations.
  • Figure 1 is a view of a fire extinguisher according to the invention, in an orientation corresponding to its orientation of use, partly in elevation lateral and, with regard to the tank, in section along the axis of this tank.
  • Figure 2 shows, on a larger scale and with burst, the assembly formed in this fire extinguisher by the cover of the tank, the means of perforation, the bottle and outlet for liquid to spray mixed with additive, cut in two planes mutually offset, one of which merges with the plane of section of Figure 1 and the other of which is parallel to the axis of the tank.
  • Fire extinguisher 1 is produced by assembling two sub-assemblies, namely a tank or body 2, of a part, and of a cover 3 grouping together a certain number of components, on the other hand.
  • the reservoir 2 has a general form of revolution around an axis 4 which, in an orientation determined to use extinguisher 1, is vertical as illustrated in Figures 1 and 2 or form some degrees of angle of inclination from the vertical. This determined orientation of use of the fire extinguisher 1 will serve as a reference after the description.
  • the reservoir 2 has a side wall 5, a bottom wall 6, to which the wall 5 is connected in a lower zone 7, and a top wall 8, at which the wall 5 is connected in an upper zone 9.
  • tank 2 is filled a liquid to be sprayed 10, in particular water with or without anti-freeze, or other liquid, and the upper zone 9 of tank 2 contains air 11 at pressure atmospheric.
  • the top wall 8 is pierced with an orifice 12 of filling with liquid 10, delimited by a circular edge 13, coaxial with axis 4.
  • the cover 3 intended to be attached so removable on the tank 2 to close the orifice 12 with sealing, has a flat circular wall 14 in the flat lower face 17 of which is fitted a annular groove 15. This groove 15 is suitable for receiving the edge 13 and to be applied tightly on it by through a seal (not illustrated).
  • the cover 3 is fixed by a bolting 16 of this cover 3 to the top wall 8.
  • the face 17 delimits an area 18 extending in the perimeter of the orifice 12.
  • the upper face 19 of the wall 14 is also flat and includes a boss 20 projecting upwards, forming a body with the wall 14.
  • This boss 20 is pierced, on one side of the axis 4, of a liquid outlet conduit 21 10, having a mouth 22 located in zone 18 and an outlet 23 located in the upper part of the boss 20.
  • the mouth 22 is delimited by a rim annular 24, centered on an axis 25 which is offset by relative to axis 4 but is parallel to it. She is extends upwards by a cylindrical section 26 coaxial with axis 25, then by a section 27 also cylindrical and coaxial with axis 25, with a diameter slightly lower than that of section 26 so as to set an annular shoulder facing down at the junction of these two sections, then by a section cylindrical 28, leading to outlet 23, coaxial with a axis 29 coplanar with axes 4 and 25, moving away from axis 4 upwards and intersecting from axis 25 at the mutual junction of the two sections 27 and 28.
  • the mouthpiece 22 receives a straight, tight tube 30, the lower end 31 of which is bevelled and is located in the lower zone 7 of the tank 2, and whose upper end 32 is connected so tight at the edge 24, by fitting in the section 26.
  • the lower end 31 thus bathes with certainty in liquid 10 for a wide range of orientations extinguisher 1, even if there is only a bottom of liquid 10 in this tank 2, so that the tube 30 even ensures in such conditions the ascent of the liquid 10 to the outlet channel 21.
  • This conduit 21 is tapped and is tightly connected, by a threaded connection 33, to a flexible tube 34 provided with sealing means 35 and opening the tube 34.
  • sealing means 35 are controlled by a handle 36 and automatically recalled to the position of tight closure of the tube 34, and communicate with a liquid diffusion system 37 10.
  • the cover 3 is hollowed out with another conduit 38 having a mouth 39 and an outlet 40 located both in zone 18.
  • This mouth 39 and this outlet 40 are delimited respectively by a ledge circular 41, centered on an axis 42 parallel to the axes 25 and 4 but offset from them, and by a ledge circular 43, centered on an axis 44 parallel to the axes 25, 4 and 42 and their common plane but offset from these axes.
  • the conduit 38 From its mouth 39 to its outlet 40, the conduit 38 has a cylindrical section 45 centered on the axis 42, essentially inside the rim 41, a section cylindrical 46 centered on an axis 47, which intersects the axes 42 and 44 and which is ascending from its intersection with axis 42 to its intersection with axis 44, a cylindrical section 48 centered on the axis 44, for the essentials inside the rim 43, and a section cylindrical 49 centered on the axis 44, inside the rim 43, having a diameter slightly greater than that of section 48 so that it forms therewith a annular shoulder facing down.
  • the section 46 opens into the blind hole formed by the two sections 49 and 48, at the height of the section 48, and in section 45.
  • Section 45 extends coaxially towards the high, beyond the connection of the section 46, by a bore 50 centered on axis 42, which opens into the open air in the upper face 19.
  • This bore 50 has a diameter lower than that of section 45 and defines with the latter a downward-facing annular shoulder frustoconical narrowing upwards.
  • the bore 50 receives and guides in sliding a rod 51 comprising a seal 52 which preserves the seal between the duct 38 and the air ambient.
  • this rod 51 has a hemispherical upper end 53, around of which the boss 20 forms a yoke comprising two arm 54.
  • These arms 54 have a handle 56 mounted swivel around an axis 55, allowing to carry extinguisher 1 and putting it into service by perforation, as shown below.
  • This handle 56 is approximately straight and perpendicular to axis 4, and extends in cantilever, from its axis 55, to the opposite of the duct 21 with respect to the axis 4.
  • the handle 56 is retained by a removable pin 58, parallel to axis 55 and bearing down on the arm 54, in a high position illustrated in FIGS. 1 and 2.
  • a user wishes to put the extinguisher 1 in use, it removes the pin 58, which releases the handle 56 towards a downward tilting around of axis 55.
  • the handle 56 has, above the end 53, a cam surface 57 allowing, during a tilting printed on the handle 56 by the operator, to apply to the rod 51 an effort forcing it to slide down from the high position illustrated in Figures 1 and 2.
  • This cam surface 57 is slightly spaced from the end 53 when the handle 56 is retained in high position by pin 58.
  • the rod 51 has a flange 59 respecting, with respect to the shoulder separating the bore 50 and the section 45, a spacing substantially identical to that which separates the end 53 and the cam 57 in said high position of the handle 56.
  • the rod 51 is extended coaxially by a hollow needle 60 of diameter smaller than the respective diameters of the flange 59 and section 45, the end of which lower 61 is bevelled and is located on a level intermediate between the respective levels of the mouthpiece 39 and the junction of the section 46 with the section 45 when the rod 51 occupies its high position; an orifice 62 of communication between inside and outside of this hollow needle 60 is immediately arranged in below the collar 59.
  • the rod 50 and the hollow needle 60 which can be made in one piece, constitute a perforator 63 which can be actuated by the handle 56 to release propellant under control pressure 64, for example nitrogen, argon or gas carbonic, intended to expel the liquid 10 from the tank 2, and an additive 65, preferably liquid, such as wetting agent, anti-corrosion agent, so-called agent "AFFF", intended to mix beforehand with the liquid 10 to increase its ability to extinguish a certain type fire or limit damage that could be caused caused by the liquid 10 itself.
  • AFFF wetting agent, anti-corrosion agent
  • This propellant 64 and this additive 65 are contents, without partitioning between them, in only one and same cistern 66, housed inside the tank 2 and connected in leaktight and removable manner to the mouth 39.
  • the section 45 is tapped between the mouth 39 and the connection of the section 46, for allow a screwed mounting of the flush bottle 66.
  • the hunting bottle 66 in the position which it occupies when it is thus connected to the mouth 39, is centered on the axis 42. It is delimited by a cylindrical side wall 67, having a outer diameter much smaller than the diameter inside the side wall 5 of the tank 2 so as to occupy only a negligible part of the section of it and to be able to be introduced and extracted by the orifice 12, together with the ascent tube 30, when fitting or removing cover 3 on the tank 2. Downward, the wall 67 is connected to a hemispherical bottom wall 68 defining a zone lower 69, while, upwards, it connects to a hemispherical wall of vertex 70 defining a zone upper 71.
  • the wall 70 is connected to a tubular neck 72, projecting upwards and open by an orifice 73 of propellant 64 and additive 65 outlet.
  • the outlet orifice 73 is sealed off by a cover 74, fixed or preferably removable.
  • the tubular neck 72 is delimited by one face inner 75, an outer face 76 and an upper edge annular plane 77.
  • the face 76 is threaded to receive, by screwing, a cylindrical sleeve 78 having a face cylindrical inner 79 suitably tapped.
  • This face 79 connects upwards, via a planar annular shoulder 80, perpendicular to the axis 42 and turned downwards, to a cylindrical inner face 81 having a diameter smaller than the respective diameters of the face 79 and the section 45 but greater than the diameter outside of needle 60.
  • the sleeve 78 seals the lid 74 between the shoulder 80 and the edge 77 for closing the orifice 73 of watertight, and provides a solid bond but removable from the hunting bottle 66 with the mouthpiece 39, by screwing, by an outer cylindrical face 82 which presents a net complementary to that of the face inside of section 45, inside of this section 45 by surrounding the needle 60 without contact.
  • the faces 81 and 82 are connected by a plane annular edge 83, perpendicular to the axis 42.
  • the face 82 is connects to a planar annular shoulder 84, facing high and perpendicular to the axis 42.
  • This shoulder 84 is intended to bear against the rim 41 and to limit thus screwing the sleeve 78 to a position in which the edge 83 remains set back from the connection from section 46 to section 45.
  • the shoulder 80 and, with it, the cover 74 occupies a position such as the needle 60 is located above the cover 74, at a certain distance from it, as long as the rod 51 occupies its above-mentioned high position.
  • the shoulder 84 corresponds to the shoulder 80 and, around the face 79, the sleeve 78 has a face outer device 85 of polygonal section, perpendicular to axis 42, to facilitate the use of a wrench to screw or unscrew the sleeve 78 compared to the rim 41 or the cork bottle 66; downwards, this face 85 is connected to face 79 by a lower annular edge 86 plane, perpendicular to axis 42.
  • a straight dip tube 87 is fitted with tightly inside the section 49.
  • the end bottom of this tube 87 is preferably located above the lower end 31 of the tube 30 but at within the liquid 10, for example halfway up this latest.
  • a sealed dip tube 88 is provided at inside the cistern 66.
  • the end upper 89 of this tube 88 is tightly connected on the face 75 of the neck 72, for example by fitting to force, and the lower end 90 of this tube 88, by example cut at a bevel, is located in the area lower 69 of the hunting bottle 66 in order to dive in addendum 65.
  • the handle 56 being immobilized in its position high by the pin 58 and the rod 51 being itself in high position, the cover 74 is intact and closed so tightens the hunting bottle 66; any communication is also closed between the tube 34 and the diffusion 37, by the sealing means 35.
  • the operator After removing the pin 58, the operator holds extinguisher 1 in the position illustrated in the figures or in a close position and prints to the handle 56 a tilting down, which causes cam 57 to press against end 53 and cause sliding of the rod 51 downwards, with needle 60 in contact with the cover 74 then perforation of the latter, which releases pressurized gas 64 and additive 65 contained in the hunting bottle 66.
  • the size of the needle 60, along the axis 42, from the flange 59 is suitably chosen so that the perforation of the cover 74 can occur completely and for that it still remains after this perforation, between the edge 83 and the flange 59, sufficient passage for the gas 64 and additive 65.
  • the interior of the bottle 66 is thus put in communication with the conduit 38 and, by through it, the hollow needle 60 and orifice 62, with the rest of the tank 2.
  • the propellant 64 causes the expulsion of the additive 65, which rises through the dip tube 88, runs through the conduit 38, descends through the tube 87, and reaches the liquid 10 with which it mixes; the gas 64 itself, following the same course, then spreads to inside the tank 2 to pressurize the mixture of liquid 10 and additive 65.
  • the operator can then, by action on the handle 36, release the mixture of liquid 10 as desired and of additive 65, which rises through the tube 30 under pressure gas 64 and escapes, in a controlled manner by action of the handle 36, by the diffusion system 37 which ensures the dispersion.
  • Fire extinguisher 1 when empty or practically empty liquid vacuum 10, can be refilled by dismantling the cover 3, filling with liquid 10 through orifice 12, replacement of the hunting bottle 66 and the cover 74, and reassembly of the cover 3 thus re-equipped.
  • propellant 64 60 g of carbon dioxide or 150 g nitrogen, respectively giving the bottle of flushes 66 a volume of 200 cm3 or 266 cm3.
  • the cover 74 is chosen so as to be able to be easily punctured by needle 60, but this seal and its fixation are chosen so as to resist the overpressure prevailing inside the bottle of flush 66 in comparison with the interior of tank 2 before perforation under normal storage conditions fire extinguisher; in addition, the cover 74 is of preferably turned to break in priority, that is to say preferentially to the flush bottle 66, in case of abnormally high overpressure therein, so to avoid an explosion of the bottle 66 in such a case.
  • operculum 74 could be fixed securely inside the sleeve 78, or at pass 72.
  • the bottle 66 could then be screwed directly inside section 45.

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Abstract

The fire extinguisher consists of a sealed chamber containing the liquid to be sprayed, a cover (3) with an outlet (21) and control system, and a sealed bottle (66) inside the chamber, containing a propellant gas (64) under pressure to expel the liquid, together with an additive (65) for the liquid. This enables the propellant gas to discharge the additive into the liquid once the contents of the bottle are released. The bottle containing the propellant gas and additive has a plunger tube (88) inside it to ensure that the pressure of the gas expels the additive from the bottle first. The cover is equipped with a handle (56) and perforator (62) to release the contents of the bottle, and a tube with a nozzle for directing the spray.

Description

La présente invention concerne un extincteur du type comportant :

  • un réservoir étanche pour un liquide à pulvériser, présentant pour ce liquide une sortie débouchant à l'air ambiant,
  • des moyens commandés de fermeture étanche ou d'ouverture de cette sortie,
  • une bouteille de chasse étanche, contenant un gaz sous pression à usage de propulseur pour le liquide, logée à l'intérieur du réservoir et présentant une sortie pour ce gaz propulseur débouchant à l'intérieur du réservoir,
  • un opercule d'obturation étanche de la sortie pour le gaz propulseur,
  • des moyens commandés de perforation de l'opercule,
  • des moyens de réception d'un additif pour le liquide à pulvériser, logés à l'intérieur du réservoir et propres à isoler l'additif du liquide à pulvériser tant que l'opercule n'a pas été perforé et à autoriser le mélange de l'additif au liquide à pulvériser, automatiquement, lorsque l'opercule a été perforé.
The present invention relates to a fire extinguisher of the type comprising:
  • a sealed reservoir for a liquid to be sprayed, having an outlet for this liquid leading to ambient air,
  • controlled means for sealing or opening this outlet,
  • a sealed cistern, containing a pressurized gas used as a propellant for the liquid, housed inside the tank and having an outlet for this propellant gas opening inside the tank,
  • a seal for sealing the outlet for the propellant,
  • controlled means for perforating the cover,
  • means for receiving an additive for the liquid to be sprayed, housed inside the tank and suitable for isolating the additive from the liquid to be sprayed as long as the cover has not been perforated and for allowing the mixture of the additive to the liquid to be sprayed, automatically, when the cover has been perforated.

On connaít de nombreux modes de réalisation d'un extincteur de ce type, dans lesquels les moyens de réception de l'additif sont constitués par une cartouche logée à l'intérieur du réservoir dans des conditions propres à isoler l'additif du liquide à pulvériser, d'une part, et du gaz propulseur sous pression, d'autre part, tant que l'on n'a pas perforé l'opercule de la bouteille de chasse, et à faire communiquer l'intérieur de la cartouche avec l'intérieur de la bouteille de chasse après perforation de l'opercule de celle-ci, afin que la pression du gaz propulseur vienne s'appliquer à l'intérieur de la cartouche d'additif. La paroi de celle-ci est fragilisée localement, de telle sorte qu'elle s'ouvre sous cette pression, qu'il se produit un mélange de l'additif au liquide à pulvériser et qu'il s'établit sur le mélange une pression gazeuse tendant à expulser ce mélange par la sortie pour le liquide à pulvériser, de façon commandée par action d'un opérateur sur les moyens de fermeture étanche ou d'ouverture de cette sortie.We know many embodiments of a fire extinguisher of this type, in which the means of receipt of the additive consist of a cartridge housed inside the tank under conditions suitable for isolating the additive from the liquid to be sprayed, on the other hand, and pressurized propellant, on the other hand, as long as the lid of the bottle has not been perforated and to communicate the interior of the cartridge with the inside of the cistern after perforation of the cover thereof, so that the propellant pressure comes to apply to inside the additive cartridge. The wall of it is weakened locally, so that it opens under this pressure, a mixture occurs of the additive to the liquid to be sprayed and that it establishes on the mixture a gas pressure tending to expel this mixing through the outlet for the liquid to be sprayed, of way controlled by action of an operator on the means sealing or opening this outlet.

On se référera par exemple au brevet britannique N° 1 548 143 et aux brevets français N° 974 326, 2 649 325 et 2 670 389, qui décrivent divers modes de réalisation de la cartouche pour l'additif.We will refer for example to the British patent No. 1,548,143 and French patents No. 974,326, 2,649,325 and 2,670,389, which describe various embodiments of the cartridge for the additive.

Les moyens connus de réception d'un additif ne donnent pas totalement satisfaction. En effet, leur montage et l'aménagement de moyens de mise en communication avec l'intérieur de la bouteille de chasse, obturés par l'opercule de celle-ci avant perforation et assurant une liaison aussi étanche que possible au gaz propulseur après perforation, compliquent la fabrication des extincteurs et grèvent leur prix de revient. De plus, la remise en état de l'extincteur après utilisation nécessite des opérations multiples et parfois malaisées de remplacement distinct de la bouteille de chasse et de la cartouche d'additif. L'opération de contrôle périodique des extincteurs s'en trouve elle-même compliquée. En outre, à moins de rendre l'ouverture de la cartouche d'additif particulièrement facile au risque d'autoriser les ouvertures accidentelles vers l'intérieur du réservoir, la façon dont cette cartouche s'ouvre après sa mise en communication avec l'intérieur de la bouteille de chasse présente un certain caractère aléatoire lorsqu'il s'agit de provoquer une rupture localisée ou un déroulement d'une zone souple de la paroi de la cartouche, et libère ou peut libérer des parties de cette paroi, au risque de boucher la sortie pour le liquide à pulvériser, lorsque la cartouche s'ouvre par expulsion d'un bouchon ou par rupture localisée, respectivement.The known means of receiving an additive do not not completely satisfactory. Indeed, their mounting and fitting out means communication with the inside of the cistern, closed by the cover of the latter before perforation and ensuring as gas tight a connection as possible propellant after perforation, complicate manufacturing fire extinguishers and strike their cost price. Moreover, reconditioning the fire extinguisher after use requires multiple and sometimes difficult operations of separate replacement of the cork bottle and the additive cartridge. The periodic control operation fire extinguishers is itself complicated. In also unless you open the cartridge of additive particularly easy at the risk of authorizing accidental openings to the interior of the tank, the way this cartridge opens after its communication with the inside of the bottle hunting has a certain randomness when it is to cause a localized rupture or a unwinding of a flexible area of the wall of the cartridge, and liberates or can liberate parts of this wall, at risk of blocking the outlet for the liquid to be sprayed, when the cartridge opens by expelling a plug or by localized rupture, respectively.

Le but de la présente invention est de remédier à ces inconvénients. The object of the present invention is to remedy these disadvantages.

A cet effet, l'invention propose un extincteur du type indiqué en préambule, caractérisé en ce que les moyens de réception de l'additif sont constitués par la bouteille de chasse elle-même, qui contient le gaz propulseur sous pression et l'additif sans cloisonnement entre eux, de telle sorte que le gaz propulseur entraíne l'additif vers le liquide à pulvériser, par la sortie pour le gaz propulseur, lorsque l'opercule a été perforé.To this end, the invention provides a fire extinguisher of the type indicated in the preamble, characterized in that the means of receiving the additive are constituted by the bottle itself, which contains the gas pressure booster and additive without partitioning between them, so that the propellant drives the additive to the liquid to be sprayed, through the outlet for the propellant, when the cover has been perforated.

Le fait de loger ainsi l'additif directement dans la bouteille de chasse, sans prévoir de cartouche supplémentaire à cet effet, permet de simplifier considérablement la réalisation et la maintenance de l'extincteur, c'est-à-dire d'en réduire le coût de fabrication et d'utilisation. De plus, tout aléa dans le fonctionnement de l'extincteur est évité puisque, dès perforation de l'opercule, qui peut s'effectuer sans libération de particules susceptibles de venir boucher la sortie pour le liquide, le gaz propulseur et l'additif sont expulsés pour venir respectivement mettre le liquide en pression et se mélanger à celui-ci.The fact of housing the additive directly in the cistern, without providing a cartridge additional for this purpose, allows to simplify considerably the realization and the maintenance of fire extinguisher, i.e. to reduce the cost of manufacture and use. In addition, any hazard in the operation of the extinguisher is avoided since, from perforation of the cover, which can be carried out without release of particles likely to clog the outlet for liquid, propellant and additive are expelled to come respectively to put the liquid in pressure and mix with it.

De préférence, l'additif est un liquide, ce qui facilite son expulsion intégrale et son mélange avec le liquide à pulvériser.Preferably, the additive is a liquid, which facilitates its complete expulsion and its mixing with the liquid to spray.

L'intégralité de l'expulsion de l'additif est en outre facilitée, dans le cas d'un extincteur destiné à être utilisé dans une orientation déterminée dans laquelle la sortie pour le gaz propulseur est tournée vers le haut, si, selon un mode de réalisation préféré, la bouteille de chasse comporte intérieurement un tube plongeur étanche de remontée, raccordé de façon étanche à la sortie pour le gaz propulseur et débouchant vers le bas dans une zone inférieure de la bouteille de chasse, en référence à ladite orientation.The entire expulsion of the additive is in further facilitated, in the case of a fire extinguisher intended for be used in a specific orientation in which the outlet for the propellant is turned upwards, if, according to a preferred embodiment, the bottle of flush has internally a waterproof dip tube of reassembled, tightly connected to the outlet for the propellant and opening down into an area bottom of the cistern, with reference to said orientation.

Ainsi, après la perforation de l'opercule, le gaz propulseur et l'additif ne peuvent quitter la bouteille de chasse que par remontée dans ce tube plongeur, vers la sortie pour le gaz propulseur, et le gaz propulseur commence par chasser l'additif hors de la bouteille de chasse, vers le liquide à pulvériser, avant de s'échapper lui-même de la bouteille de chasse pour mettre ce liquide à pulvériser en pression ; pour s'assurer d'une expulsion aussi complète que possible de l'additif avant que le gaz propulseur ne s'échappe de la bouteille de chasse, on fait de préférence déboucher le tube plongeur aussi bas que possible dans celle-ci.So, after the perforation of the lid, the gas propellant and additive cannot leave the bottle hunting only by ascending in this dip tube, towards the outlet for the propellant, and the propellant start by driving the additive out of the bottle flush, towards the liquid to be sprayed, before escaping himself from the cistern to put this liquid spraying under pressure; to ensure an eviction as complete as possible of the additive before the gas propellant does not escape from the cistern, we do preferably open the dip tube as low as possible in it.

L'expulsion de l'additif par le gaz sous pression après perforation de l'opercule peut être suffisamment énergique pour assurer une bonne dispersion de l'additif dans le liquide à pulvériser mais on peut également prévoir, selon un mode de mise en oeuvre préféré de l'invention, que l'extincteur comporte des moyens pour favoriser cette dispersion.Expulsion of the additive by pressurized gas after perforation of the seal may be sufficient energetic to ensure good dispersion of the additive in the liquid to be sprayed but you can also provide, according to a preferred embodiment of the invention, that the extinguisher includes means for favor this dispersion.

Par exemple, dans le cas d'un extincteur destiné à être utilisé dans une orientation déterminée dans laquelle la sortie pour le gaz propulseur est disposée dans une zone supérieure du réservoir, ces moyens comportent, à l'intérieur du réservoir mais à l'extérieur de la bouteille de chasse, un tube plongeur étanche de dispersion, raccordé de façon étanche à la sortie pour le gaz propulseur et débouchant vers le bas dans le réservoir, de préférence au sein du liquide à pulvériser, en référence à ladite orientation.For example, in the case of a fire extinguisher intended for be used in a specific orientation in which the outlet for the propellant gas is arranged in a upper zone of the tank, these means comprise, at inside the tank but outside the cork bottle, a waterproof dip tube of dispersion, tightly connected to the outlet for the propellant and opening down into the reservoir, preferably within the liquid to be sprayed, with reference to said orientation.

Avantageusement, dans le cas d'un extincteur destiné à être utilisé dans une orientation déterminée dans laquelle la sortie pour le liquide à pulvériser est disposée dans une zone supérieure du réservoir, le réservoir comporte intérieurement, à l'extérieur de la bouteille de chasse, un tube plongeur étanche de remontée, raccordé de façon étanche à la sortie pour le liquide à pulvériser et débouchant vers le bas dans une zone inférieure du réservoir, de préférence aussi bas que possible dans celui-ci, en référence à ladite orientation, pour n'autoriser l'accès du liquide à pulvériser, mêlé d'additif, à la sortie prévue pour lui que par remontée à l'intérieur de ce tube plongeur.Advantageously, in the case of a fire extinguisher intended to be used in a specific orientation in which the outlet for the liquid to be sprayed is arranged in an upper zone of the tank, the tank has internally, outside the cork bottle, a waterproof ascent tube, tightly connected to the outlet for the liquid to spray and opening down into an area bottom of the tank, preferably as low as possible in this one, with reference to said orientation, to prevent access to the liquid to be sprayed, mixed additive, at the exit planned for him only by ascent to inside this dip tube.

Ainsi, un extincteur selon l'invention peut présenter deux tubes plongeurs mutuellement juxtaposés, dont l'un est raccordé à la sortie pour le gaz propulseur, de façon à favoriser la dispersion de l'additif dans le liquide à pulvériser après perforation de l'opercule de la bouteille de chasse, et dont l'autre est raccordé à la sortie pour le liquide à pulvériser, pour s'assurer de ce que le gaz sous pression provoque en priorité l'expulsion du mélange de ce liquide à pulvériser avec l'additif, par remontée vers la sortie pour le liquide à pulvériser, lorsque celle-ci est ouverte sous la commande d'un opérateur, avant de pouvoir s'échapper lui-même du réservoir.Thus, a fire extinguisher according to the invention can present two mutually juxtaposed dip tubes, one of which is connected to the outlet for the propellant, so as to favor the dispersion of the additive in the liquid to be sprayed after perforation of the lid of the bottle, and the other of which is connected to the outlet for the liquid to be sprayed, to ensure that that gas under pressure causes expulsion as a priority of the mixture of this liquid to be sprayed with the additive, by ascent to the outlet for the liquid to be sprayed, when it is opened under the control of a operator, before he can escape himself from the tank.

L'utilisation d'une quantité maximale du mélange de liquide à pulvériser et d'additif est ainsi garantie.The use of a maximum amount of the mixture guaranteed spraying liquid and additive.

Il n'est pas nécessaire que le tube plongeur de dispersion de l'additif débouche aussi bas, dans le réservoir, que le tube plongeur de remontée du mélange de liquide à pulvériser et d'additif. De préférence, le tube plongeur de dispersion de l'additif débouche à l'intérieur du réservoir sensiblement plus haut que le tube plongeur de remontée du mélange, par exemple à mi-hauteur du liquide à pulvériser, si l'on considère l'extincteur dans ladite orientation, afin d'assurer une dispersion optimale de l'additif dans le liquide à pulvériser, sans risque de passage direct d'une partie de l'additif entre le tube plongeur de dispersion et le tube plongeur de remontée vers la sortie pour le liquide à pulvériser.The dip tube does not have to be dispersion of the additive opens as low, in the tank, that the ascent tube of the mixture of spray liquid and additive. Preferably, the tube additive dispersion plunger opens inside tank noticeably higher than the dip tube upward movement of the mixture, for example halfway up the liquid to be sprayed, considering the fire extinguisher in said orientation, in order to ensure optimal dispersion additive in the liquid to be sprayed, without risk of direct passage of part of the additive between the tube dispersion plunger and riser tube to the outlet for the liquid to be sprayed.

De préférence, dans le cas d'un extincteur dont le réservoir comporte un orifice de remplissage en liquide à pulvériser et un couvercle rapporté de façon solidaire, notamment amovible, sur le réservoir et obturant de façon étanche l'orifice de remplissage, le couvercle porte de façon solidaire, notamment amovible, la bouteille de chasse qui est dimensionnée de façon à pouvoir traverser l'orifice de remplissage.Preferably, in the case of a fire extinguisher the tank has a liquid filling port at spray and an attached cover, especially removable, on the tank and shutter so sealing the filling opening, the door in solidarity, in particular removable, the bottle of hunting which is dimensioned so as to be able to cross the filling opening.

L'éventuel tube plongeur destiné à favoriser la dispersion de l'additif dans le liquide à pulvériser lorsque l'opercule a été perforé et, lorsque le couvercle présente en outre la sortie pour le liquide à pulvériser et qu'un autre tube plongeur raccordé à cette sortie est prévu pour favoriser une utilisation maximale du mélange de liquide à pulvériser et d'additif, cet autre tube plongeur constituent les seuls composants à engager par l'orifice de remplissage du réservoir en liquide à pulvériser. Ceci permet soit de réduire les dimensions de cet orifice, soit d'augmenter les dimensions de la bouteille de chasse pour une dimension donnée de cet orifice.The possible dip tube intended to promote the dispersion of the additive in the liquid to be sprayed when the cover has been perforated and, when the cover also has the outlet for the liquid to be sprayed and that another dip tube connected to this outlet is designed to encourage maximum use of the mixture liquid spray and additive, this other tube diver are the only components to be engaged by the liquid tank filling port at spray. This allows either to reduce the dimensions of this orifice, that is to increase the dimensions of the cork bottle for a given dimension of this orifice.

Avantageusement, le couvercle porte les moyens commandés de perforation, ce qui permet de simplifier considérablement la réalisation du réservoir et les opérations de maintenance.Advantageously, the cover carries the means perforation controls, which simplifies considerably the realization of the tank and the maintenance operations.

D'autres caractéristiques et avantages d'un extincteur selon l'invention ressortiront de la description ci-dessous, relative à un exemple non limitatif de réalisation, ainsi que des dessins annexés qui font partie intégrante de cette description.Other features and advantages of a fire extinguisher according to the invention will emerge from the description below, relating to an example not limiting of realization, as well as attached drawings which form an integral part of this description.

La figure 1 est une vue d'un extincteur selon l'invention, dans une orientation correspondant à son orientation d'utilisation, pour partie en élévation latérale et, pour ce qui concerne le réservoir, en coupe selon l'axe de ce réservoir.Figure 1 is a view of a fire extinguisher according to the invention, in an orientation corresponding to its orientation of use, partly in elevation lateral and, with regard to the tank, in section along the axis of this tank.

La figure 2 montre, à plus grande échelle et avec éclatement, l'ensemble formé dans cet extincteur par le couvercle du réservoir, les moyens de perforation, la bouteille de chasse et la sortie pour le liquide à pulvériser mélangé d'additif, en coupe par deux plans mutuellement décalés, dont l'un se confond avec le plan de coupe de la figure 1 et dont l'autre est parallèle à l'axe du réservoir.Figure 2 shows, on a larger scale and with burst, the assembly formed in this fire extinguisher by the cover of the tank, the means of perforation, the bottle and outlet for liquid to spray mixed with additive, cut in two planes mutually offset, one of which merges with the plane of section of Figure 1 and the other of which is parallel to the axis of the tank.

L'extincteur 1 est réalisé par assemblage de deux sous-ensembles, à savoir un réservoir ou corps 2, d'une part, et d'un couvercle 3 regroupant un certain nombre de composants, d'autre part.Fire extinguisher 1 is produced by assembling two sub-assemblies, namely a tank or body 2, of a part, and of a cover 3 grouping together a certain number of components, on the other hand.

Le réservoir 2 présente une forme générale de révolution autour d'un axe 4 qui, dans une orientation déterminée d'utilisation de l'extincteur 1, est vertical comme on l'a illustré aux figures 1 et 2 ou forme quelques degrés d'angle d'inclinaison par rapport à la verticale. Cette orientation déterminée d'utilisation de l'extincteur 1 servira de référence à la suite de la description.The reservoir 2 has a general form of revolution around an axis 4 which, in an orientation determined to use extinguisher 1, is vertical as illustrated in Figures 1 and 2 or form some degrees of angle of inclination from the vertical. This determined orientation of use of the fire extinguisher 1 will serve as a reference after the description.

Le réservoir 2 présente une paroi latérale 5, une paroi de fond 6, à laquelle la paroi 5 se raccorde dans une zone inférieure 7, et une paroi de sommet 8, à laquelle la paroi 5 se raccorde dans une zone supérieure 9.The reservoir 2 has a side wall 5, a bottom wall 6, to which the wall 5 is connected in a lower zone 7, and a top wall 8, at which the wall 5 is connected in an upper zone 9.

La majeure partie de ce réservoir 2 est emplie d'un liquide à pulvériser 10, notamment de l'eau avec ou sans anti-gel, ou autre liquide, et la zone supérieure 9 du réservoir 2 contient de l'air 11 à la pression atmosphérique.Most of this tank 2 is filled a liquid to be sprayed 10, in particular water with or without anti-freeze, or other liquid, and the upper zone 9 of tank 2 contains air 11 at pressure atmospheric.

La paroi de sommet 8 est percée d'un orifice 12 de remplissage en liquide 10, délimité par un bord circulaire 13, coaxial à l'axe 4.The top wall 8 is pierced with an orifice 12 of filling with liquid 10, delimited by a circular edge 13, coaxial with axis 4.

Le couvercle 3, destiné à être rapporté de façon amovible sur le réservoir 2 pour obturer l'orifice 12 avec étanchéité, présente une paroi circulaire plate 14 dans la face inférieure plane 17 de laquelle est aménagée une gorge annulaire 15. Cette gorge 15 est propre à recevoir le bord 13 et à s'appliquer de façon étanche sur lui par l'intermédiaire d'une garniture d'étanchéité (non illustrée). La fixation du couvercle 3 s'effectue par un boulonnage 16 de ce couvercle 3 à la paroi de sommet 8. The cover 3, intended to be attached so removable on the tank 2 to close the orifice 12 with sealing, has a flat circular wall 14 in the flat lower face 17 of which is fitted a annular groove 15. This groove 15 is suitable for receiving the edge 13 and to be applied tightly on it by through a seal (not illustrated). The cover 3 is fixed by a bolting 16 of this cover 3 to the top wall 8.

La face 17 délimite une zone 18 s'étendant dans le périmètre de l'orifice 12.The face 17 delimits an area 18 extending in the perimeter of the orifice 12.

La face supérieure 19 de la paroi 14 est également plane et comprend un bossage 20 en saillie vers le haut, formant corps avec la paroi 14. Ce bossage 20 est percé, d'un côté de l'axe 4, d'un conduit 21 de sortie du liquide 10, présentant une embouchure 22 située dans la zone 18 et un débouché 23 situé dans la partie supérieure du bossage 20.The upper face 19 of the wall 14 is also flat and includes a boss 20 projecting upwards, forming a body with the wall 14. This boss 20 is pierced, on one side of the axis 4, of a liquid outlet conduit 21 10, having a mouth 22 located in zone 18 and an outlet 23 located in the upper part of the boss 20.

L'embouchure 22 est délimitée par un rebord annulaire 24, centré sur un axe 25 qui est décalé par rapport à l'axe 4 mais est parallèle à celui-ci. Elle se prolonge vers le haut par un tronçon cylindrique 26 coaxial à l'axe 25, puis par un tronçon 27 également cylindrique et coaxial à l'axe 25, avec un diamètre légèrement inférieur à celui du tronçon 26 de façon à définir un épaulement annulaire tourné vers le bas à la jonction de ces deux tronçons, puis par un tronçon cylindrique 28, aboutissant au débouché 23, coaxial à un axe 29 coplanaire aux axes 4 et 25, s'éloignant de l'axe 4 vers le haut et sécant de l'axe 25 à la jonction mutuelle des deux tronçons 27 et 28.The mouth 22 is delimited by a rim annular 24, centered on an axis 25 which is offset by relative to axis 4 but is parallel to it. She is extends upwards by a cylindrical section 26 coaxial with axis 25, then by a section 27 also cylindrical and coaxial with axis 25, with a diameter slightly lower than that of section 26 so as to set an annular shoulder facing down at the junction of these two sections, then by a section cylindrical 28, leading to outlet 23, coaxial with a axis 29 coplanar with axes 4 and 25, moving away from axis 4 upwards and intersecting from axis 25 at the mutual junction of the two sections 27 and 28.

L'embouchure 22 reçoit un tube étanche rectiligne 30 dont l'extrémité inférieure 31 est taillée en biseau et est située dans la zone inférieure 7 du réservoir 2, et dont l'extrémité supérieure 32 se raccorde de façon étanche au rebord 24, par emmanchement dans le tronçon 26. L'extrémité inférieure 31 baigne ainsi avec certitude dans le liquide 10 pour une large gamme d'orientations de l'extincteur 1, même s'il ne reste plus qu'un fond de liquide 10 dans ce réservoir 2, de sorte que le tube 30 assure même dans de telles conditions la remontée du liquide 10 jusqu'au canal de sortie 21.The mouthpiece 22 receives a straight, tight tube 30, the lower end 31 of which is bevelled and is located in the lower zone 7 of the tank 2, and whose upper end 32 is connected so tight at the edge 24, by fitting in the section 26. The lower end 31 thus bathes with certainty in liquid 10 for a wide range of orientations extinguisher 1, even if there is only a bottom of liquid 10 in this tank 2, so that the tube 30 even ensures in such conditions the ascent of the liquid 10 to the outlet channel 21.

Le tronçon 28 de ce conduit 21 est taraudé et est raccordé de façon étanche, par un raccord fileté 33, à un tube flexible 34 muni de moyens 35 d'obturation étanche et d'ouverture du tube 34. Ces moyens 35 sont commandés par une poignée 36 et rappelés automatiquement en position de fermeture étanche du tube 34, et communiquent avec un système 37 de diffusion du liquide 10.The section 28 of this conduit 21 is tapped and is tightly connected, by a threaded connection 33, to a flexible tube 34 provided with sealing means 35 and opening the tube 34. These means 35 are controlled by a handle 36 and automatically recalled to the position of tight closure of the tube 34, and communicate with a liquid diffusion system 37 10.

Dans une position décalée par rapport à celle du conduit 21, le couvercle 3 est creusé d'un autre conduit 38 présentant une embouchure 39 et un débouché 40 situés tous deux dans la zone 18. Cette embouchure 39 et ce débouché 40 sont délimités respectivement par un rebord circulaire 41, centré sur un axe 42 parallèle aux axes 25 et 4 mais décalé par rapport à eux, et par un rebord circulaire 43, centré sur un axe 44 parallèle aux axes 25, 4 et 42 et à leur plan commun mais décalé par rapport à ces axes.In a position offset from that of the conduit 21, the cover 3 is hollowed out with another conduit 38 having a mouth 39 and an outlet 40 located both in zone 18. This mouth 39 and this outlet 40 are delimited respectively by a ledge circular 41, centered on an axis 42 parallel to the axes 25 and 4 but offset from them, and by a ledge circular 43, centered on an axis 44 parallel to the axes 25, 4 and 42 and their common plane but offset from these axes.

De son embouchure 39 à son débouché 40, le conduit 38 présente un tronçon cylindrique 45 centré sur l'axe 42, pour l'essentiel à l'intérieur du rebord 41, un tronçon cylindrique 46 centré sur un axe 47, qui coupe les axes 42 et 44 et qui est ascendant depuis son intersection avec l'axe 42 jusqu'à son intersection avec l'axe 44, un tronçon cylindrique 48 centré sur l'axe 44, pour l'essentiel à l'intérieur du rebord 43, et un tronçon cylindrique 49 centré sur l'axe 44, à l'intérieur du rebord 43, ayant un diamètre légèrement supérieur à celui du tronçon 48 de telle sorte qu'il forme avec celui-ci un épaulement annulaire tourné vers le bas.From its mouth 39 to its outlet 40, the conduit 38 has a cylindrical section 45 centered on the axis 42, essentially inside the rim 41, a section cylindrical 46 centered on an axis 47, which intersects the axes 42 and 44 and which is ascending from its intersection with axis 42 to its intersection with axis 44, a cylindrical section 48 centered on the axis 44, for the essentials inside the rim 43, and a section cylindrical 49 centered on the axis 44, inside the rim 43, having a diameter slightly greater than that of section 48 so that it forms therewith a annular shoulder facing down.

Le tronçon 46 débouche dans le trou borgne formé par les deux tronçons 49 et 48, à hauteur du tronçon 48, et dans le tronçon 45.The section 46 opens into the blind hole formed by the two sections 49 and 48, at the height of the section 48, and in section 45.

Le tronçon 45 se prolonge coaxialement vers le haut, au-delà du raccordement du tronçon 46, par un alésage 50 centré sur l'axe 42, qui débouche à l'air libre dans la face supérieure 19. Cet alésage 50 a un diamètre inférieur à celui du tronçon 45 et définit avec ce dernier un épaulement annulaire tourné vers le bas, de forme tronconique se rétrécissant vers le haut. Section 45 extends coaxially towards the high, beyond the connection of the section 46, by a bore 50 centered on axis 42, which opens into the open air in the upper face 19. This bore 50 has a diameter lower than that of section 45 and defines with the latter a downward-facing annular shoulder frustoconical narrowing upwards.

L'alésage 50 reçoit et guide en coulissement une tige 51 comportant une garniture d'étanchéité 52 qui préserve l'étanchéité entre le conduit 38 et l'air ambiant.The bore 50 receives and guides in sliding a rod 51 comprising a seal 52 which preserves the seal between the duct 38 and the air ambient.

Au-dessus de la face supérieure 19, cette tige 51 présente une extrémité supérieure hémisphérique 53, autour de laquelle le bossage 20 forme une chape comportant deux bras 54. Ces bras 54 comportent une poignée 56 montée pivotante autour d'un axe 55, permettant de porter l'extincteur 1 et de le mettre en service par perforation, comme indiqué plus loin. Cette poignée 56 est approximativement rectiligne et perpendiculaire à l'axe 4, et s'étend en porte-à-faux, à partir de son axe 55, à l'opposé du conduit 21 par rapport à l'axe 4. Tant que l'on ne désire pas mettre l'extincteur 1 en service, la poignée 56 est retenue par une goupille amovible 58, parallèle à l'axe 55 et prenant appui vers le bas sur les bras 54, dans une position haute illustrée aux figures 1 et 2. Lorsqu'un utilisateur désire mettre l'extincteur 1 en service, il ôte la goupille 58, ce qui libère la poignée 56 vis-à-vis d'un basculement vers le bas autour de l'axe 55.Above the upper face 19, this rod 51 has a hemispherical upper end 53, around of which the boss 20 forms a yoke comprising two arm 54. These arms 54 have a handle 56 mounted swivel around an axis 55, allowing to carry extinguisher 1 and putting it into service by perforation, as shown below. This handle 56 is approximately straight and perpendicular to axis 4, and extends in cantilever, from its axis 55, to the opposite of the duct 21 with respect to the axis 4. As long as you do not want to put the extinguisher 1 into service, the handle 56 is retained by a removable pin 58, parallel to axis 55 and bearing down on the arm 54, in a high position illustrated in FIGS. 1 and 2. When a user wishes to put the extinguisher 1 in use, it removes the pin 58, which releases the handle 56 towards a downward tilting around of axis 55.

La poignée 56 présente, au-dessus de l'extrémité 53, une surface de came 57 permettant, lors d'un basculement imprimé à la poignée 56 par l'opérateur, d'appliquer à la tige 51 un effort l'obligeant à coulisser vers le bas à partir de la position haute illustrée aux figures 1 et 2.The handle 56 has, above the end 53, a cam surface 57 allowing, during a tilting printed on the handle 56 by the operator, to apply to the rod 51 an effort forcing it to slide down from the high position illustrated in Figures 1 and 2.

Cette surface de came 57 est légèrement espacée de l'extrémité 53 lorsque la poignée 56 est retenue en position haute par la goupille 58.This cam surface 57 is slightly spaced from the end 53 when the handle 56 is retained in high position by pin 58.

A l'intérieur du tronçon 45, la tige 51 présente une collerette 59 respectant, vis-à-vis de l'épaulement séparant l'alésage 50 et le tronçon 45, un espacement sensiblement identique à celui qui sépare l'extrémité 53 et la came 57 dans ladite position haute de la poignée 56. Inside the section 45, the rod 51 has a flange 59 respecting, with respect to the shoulder separating the bore 50 and the section 45, a spacing substantially identical to that which separates the end 53 and the cam 57 in said high position of the handle 56.

Vers l'intérieur du tronçon 45, la tige 51 se prolonge coaxialement par une aiguille creuse 60 de diamètre inférieur aux diamètres respectifs de la collerette 59 et du tronçon 45, dont l'extrémité inférieure 61 est biseautée et est située à un niveau intermédiaire entre les niveaux respectifs de l'embouchure 39 et de la jonction du tronçon 46 avec le tronçon 45 lorsque la tige 51 occupe sa position haute ; un orifice 62 de communication entre l'intérieur et l'extérieur de cette aiguille creuse 60 est aménagé immédiatement en dessous de la collerette 59.Towards the interior of the section 45, the rod 51 is extended coaxially by a hollow needle 60 of diameter smaller than the respective diameters of the flange 59 and section 45, the end of which lower 61 is bevelled and is located on a level intermediate between the respective levels of the mouthpiece 39 and the junction of the section 46 with the section 45 when the rod 51 occupies its high position; an orifice 62 of communication between inside and outside of this hollow needle 60 is immediately arranged in below the collar 59.

La tige 50 et l'aiguille creuse 60, qui peuvent être réalisées en une seule pièce, constituent un perforateur 63 pouvant être actionné par la poignée 56 pour libérer de façon commandée un gaz propulseur sous pression 64, par exemple de l'azote, de l'argon ou du gaz carbonique, destiné à expulser le liquide 10 du réservoir 2, et un additif 65, de préférence liquide, tel qu'un agent mouillant, un agent anti-corrosion, un agent dit "AFFF", destiné à se mélanger préalablement au liquide 10 pour accroítre son aptitude à éteindre un certain type d'incendie ou limiter des dégâts qui pourraient être provoqués par le liquide 10 lui-même.The rod 50 and the hollow needle 60, which can be made in one piece, constitute a perforator 63 which can be actuated by the handle 56 to release propellant under control pressure 64, for example nitrogen, argon or gas carbonic, intended to expel the liquid 10 from the tank 2, and an additive 65, preferably liquid, such as wetting agent, anti-corrosion agent, so-called agent "AFFF", intended to mix beforehand with the liquid 10 to increase its ability to extinguish a certain type fire or limit damage that could be caused caused by the liquid 10 itself.

Ce gaz propulseur 64 et cet additif 65 sont contenus, sans cloisonnement entre eux, dans une seule et même bouteille de chasse 66, logée à l'intérieur du réservoir 2 et raccordée de façon étanche et amovible à l'embouchure 39. Le tronçon 45 est taraudé entre l'embouchure 39 et le raccordement du tronçon 46, pour permettre un montage vissé de la bouteille de chasse 66.This propellant 64 and this additive 65 are contents, without partitioning between them, in only one and same cistern 66, housed inside the tank 2 and connected in leaktight and removable manner to the mouth 39. The section 45 is tapped between the mouth 39 and the connection of the section 46, for allow a screwed mounting of the flush bottle 66.

La bouteille de chasse 66, dans la position qu'elle occupe lorsqu'elle est ainsi raccordée à l'embouchure 39, est centrée sur l'axe 42. Elle est délimitée par une paroi latérale 67 cylindrique, ayant un diamètre extérieur largement inférieur au diamètre intérieur de la paroi latérale 5 du réservoir 2 de façon à n'occuper qu'une part négligeable de la section de celui-ci et à pouvoir être introduite et extraite par l'orifice 12, conjointement avec le tube de remontée 30, lors de la mise en place ou du retrait du couvercle 3 sur le réservoir 2. Vers le bas, la paroi 67 se raccorde à une paroi hémisphérique de fond 68 définissant une zone inférieure 69, alors que, vers le haut, elle se raccorde à une paroi hémisphérique de sommet 70 définissant une zone supérieure 71. La paroi 70 se raccorde à un col tubulaire 72, en saillie vers le haut et ouvert par un orifice 73 de sortie du gaz propulseur 64 et de l'additif 65.The hunting bottle 66, in the position which it occupies when it is thus connected to the mouth 39, is centered on the axis 42. It is delimited by a cylindrical side wall 67, having a outer diameter much smaller than the diameter inside the side wall 5 of the tank 2 so as to occupy only a negligible part of the section of it and to be able to be introduced and extracted by the orifice 12, together with the ascent tube 30, when fitting or removing cover 3 on the tank 2. Downward, the wall 67 is connected to a hemispherical bottom wall 68 defining a zone lower 69, while, upwards, it connects to a hemispherical wall of vertex 70 defining a zone upper 71. The wall 70 is connected to a tubular neck 72, projecting upwards and open by an orifice 73 of propellant 64 and additive 65 outlet.

Lorsque l'extincteur 1 n'est pas en service, l'orifice de sortie 73 est obturé de façon étanche par un opercule 74, fixe ou de préférence amovible.When extinguisher 1 is not in service, the outlet orifice 73 is sealed off by a cover 74, fixed or preferably removable.

Le col tubulaire 72 est délimité par une face intérieure 75, une face extérieure 76 et un bord supérieur annulaire plan 77. La face 76 est filetée pour recevoir, par vissage, un manchon cylindrique 78 présentant une face intérieure cylindrique 79 convenablement taraudée. Cette face 79 se raccorde vers le haut, par l'intermédiaire d'un épaulement annulaire plan 80, perpendiculaire à l'axe 42 et tourné vers le bas, à une face intérieure cylindrique 81 ayant un diamètre inférieur aux diamètres respectifs de la face 79 et du tronçon 45 mais supérieur au diamètre extérieur de l'aiguille 60.The tubular neck 72 is delimited by one face inner 75, an outer face 76 and an upper edge annular plane 77. The face 76 is threaded to receive, by screwing, a cylindrical sleeve 78 having a face cylindrical inner 79 suitably tapped. This face 79 connects upwards, via a planar annular shoulder 80, perpendicular to the axis 42 and turned downwards, to a cylindrical inner face 81 having a diameter smaller than the respective diameters of the face 79 and the section 45 but greater than the diameter outside of needle 60.

Une fois vissé sur le filet de la face 76, le manchon 78 emprisonne de façon étanche l'opercule 74 entre l'épaulement 80 et le bord 77 pour obturer l'orifice 73 de façon étanche, et assure la liaison solidaire mais amovible de la bouteille de chasse 66 avec l'embouchure 39, en se vissant, par une face cylindrique extérieure 82 qui présente un filet complémentaire de celui de la face intérieure du tronçon 45, à l'intérieur de ce tronçon 45 en entourant sans contact l'aiguille 60.Once screwed on the thread of face 76, the sleeve 78 seals the lid 74 between the shoulder 80 and the edge 77 for closing the orifice 73 of watertight, and provides a solid bond but removable from the hunting bottle 66 with the mouthpiece 39, by screwing, by an outer cylindrical face 82 which presents a net complementary to that of the face inside of section 45, inside of this section 45 by surrounding the needle 60 without contact.

Vers le haut, les faces 81 et 82 sont raccordées par un bord annulaire plan 83, perpendiculaire à l'axe 42. Vers le bas, à une distance du bord 83 inférieure ou égale à la distance axiale séparant le raccordement mutuel des tronçons 45 et 46 de l'embouchure 39, la face 82 se raccorde à un épaulement annulaire plan 84, tourné vers le haut et perpendiculaire à l'axe 42. Cet épaulement 84 est destiné à venir en appui contre le rebord 41 et à limiter ainsi le vissage du manchon 78 à une position dans laquelle le bord 83 reste situé en retrait du raccordement du tronçon 46 au tronçon 45.Upwards, the faces 81 and 82 are connected by a plane annular edge 83, perpendicular to the axis 42. Down, at a distance from edge 83 less or equal at the axial distance separating the mutual connection of sections 45 and 46 of the mouth 39, the face 82 is connects to a planar annular shoulder 84, facing high and perpendicular to the axis 42. This shoulder 84 is intended to bear against the rim 41 and to limit thus screwing the sleeve 78 to a position in which the edge 83 remains set back from the connection from section 46 to section 45.

Dans cette position, l'épaulement 80 et, avec lui, l'opercule 74 occupent une position telle que l'aiguille 60 est située au-dessus de l'opercule 74, à une certaine distance de celui-ci, tant que la tige 51 occupe sa position haute précitée.In this position, the shoulder 80 and, with it, the cover 74 occupies a position such as the needle 60 is located above the cover 74, at a certain distance from it, as long as the rod 51 occupies its above-mentioned high position.

L'épaulement 84 correspond à l'épaulement 80 et, autour de la face 79, le manchon 78 présente une face périphérique extérieure 85 de section polygonale, perpendiculairement à l'axe 42, afin de faciliter l'utilisation d'une clé pour visser ou dévisser le manchon 78 par rapport au rebord 41 ou à la bouteille de chasse 66 ; vers le bas, cette face 85 se raccorde à la face 79 par un bord inférieur 86 annulaire plan, perpendiculaire à l'axe 42.The shoulder 84 corresponds to the shoulder 80 and, around the face 79, the sleeve 78 has a face outer device 85 of polygonal section, perpendicular to axis 42, to facilitate the use of a wrench to screw or unscrew the sleeve 78 compared to the rim 41 or the cork bottle 66; downwards, this face 85 is connected to face 79 by a lower annular edge 86 plane, perpendicular to axis 42.

Un tube plongeur rectiligne 87 est emmanché de manière étanche à l'intérieur du tronçon 49. L'extrémité inférieure de ce tube 87 est située de préférence au-dessus de l'extrémité inférieure 31 du tube 30 mais au sein du liquide 10, par exemple à mi-hauteur de ce dernier. En outre, un tube plongeur étanche 88 est prévu à l'intérieur de la bouteille de chasse 66. L'extrémité supérieure 89 de ce tube 88 est raccordée de façon étanche à la face 75 du col 72, par exemple par emmanchement à force, et l'extrémité inférieure 90 de ce tube 88, par exemple coupée en biseau, est située dans la zone inférieure 69 de la bouteille de chasse 66 afin de plonger dans l'additif 65. A straight dip tube 87 is fitted with tightly inside the section 49. The end bottom of this tube 87 is preferably located above the lower end 31 of the tube 30 but at within the liquid 10, for example halfway up this latest. In addition, a sealed dip tube 88 is provided at inside the cistern 66. The end upper 89 of this tube 88 is tightly connected on the face 75 of the neck 72, for example by fitting to force, and the lower end 90 of this tube 88, by example cut at a bevel, is located in the area lower 69 of the hunting bottle 66 in order to dive in addendum 65.

L'utilisation de l'extincteur s'effectue de la façon suivante.The use of the extinguisher is carried out from the next way.

La poignée 56 étant immobilisée dans sa position haute par la goupille 58 et la tige 51 étant elle-même en position haute, l'opercule 74 est intact et ferme de façon étanche la bouteille de chasse 66 ; toute communication est par ailleurs fermée entre le tube 34 et le système de diffusion 37, par les moyens d'obturation 35.The handle 56 being immobilized in its position high by the pin 58 and the rod 51 being itself in high position, the cover 74 is intact and closed so tightens the hunting bottle 66; any communication is also closed between the tube 34 and the diffusion 37, by the sealing means 35.

Après avoir ôté la goupille 58, l'opérateur tient l'extincteur 1 dans la position illustrée aux figures ou dans une position proche et imprime à la poignée 56 un basculement vers le bas, ce qui amène la came 57 à appuyer contre l'extrémité 53 et à provoquer un coulissement de la tige 51 vers le bas, avec mise en contact de l'aiguille 60 avec l'opercule 74 puis perforation de ce dernier, ce qui libère le gaz sous pression 64 et l'additif 65 contenus dans la bouteille de chasse 66. La dimension de l'aiguille 60, suivant l'axe 42, à partir de la collerette 59 est convenablement choisie pour que la perforation de l'opercule 74 puisse se produire complètement et pour qu'il subsiste encore après cette perforation, entre le bord 83 et la collerette 59, un passage suffisant pour le gaz 64 et l'additif 65.After removing the pin 58, the operator holds extinguisher 1 in the position illustrated in the figures or in a close position and prints to the handle 56 a tilting down, which causes cam 57 to press against end 53 and cause sliding of the rod 51 downwards, with needle 60 in contact with the cover 74 then perforation of the latter, which releases pressurized gas 64 and additive 65 contained in the hunting bottle 66. The size of the needle 60, along the axis 42, from the flange 59 is suitably chosen so that the perforation of the cover 74 can occur completely and for that it still remains after this perforation, between the edge 83 and the flange 59, sufficient passage for the gas 64 and additive 65.

L'intérieur de la bouteille de chasse 66 est ainsi mis en communication avec le conduit 38 et, par l'intermédiaire de celui-ci, de l'aiguille creuse 60 et de l'orifice 62, avec le reste du réservoir 2.The interior of the bottle 66 is thus put in communication with the conduit 38 and, by through it, the hollow needle 60 and orifice 62, with the rest of the tank 2.

Le gaz propulseur 64 provoque l'expulsion de l'additif 65, qui remonte par le tube plongeur 88, parcourt le conduit 38, redescend par le tube 87, et parvient dans le liquide 10 auquel il se mélange ; le gaz 64 lui-même, suivant le même parcours, se répand ensuite à l'intérieur du réservoir 2 pour mettre en pression le mélange du liquide 10 et de l'additif 65.The propellant 64 causes the expulsion of the additive 65, which rises through the dip tube 88, runs through the conduit 38, descends through the tube 87, and reaches the liquid 10 with which it mixes; the gas 64 itself, following the same course, then spreads to inside the tank 2 to pressurize the mixture of liquid 10 and additive 65.

Ce mélange du liquide 10 avec l'additif 65 est facilité par le tube 87. Bien que l'additif 65 et le gaz propulseur 64 tendent à se rassembler respectivement dans la zone inférieure 69 et dans la zone supérieure de la bouteille de chasse 66, comme le montre la figure 2, l'expulsion pratiquement totale de l'additif 65 hors de la bouteille de chasse 66 avant que le gaz propulseur 64 ne s'en échappe est assurée par le tube 88.This mixture of the liquid 10 with the additive 65 is facilitated by tube 87. Although additive 65 and gas propellant 64 tend to collect respectively in the lower area 69 and in the upper area of the bottle 66, as shown in Figure 2, the practically total expulsion of the additive 65 out of the bottle 66 before the propellant 64 does escapes is ensured by the tube 88.

L'opérateur peut ensuite, par action sur la poignée 36, libérer à volonté le mélange du liquide 10 et d'additif 65, qui remonte par le tube 30 sous la pression du gaz 64 et s'échappe, de façon réglée par action de la poignée 36, par le système de diffusion 37 qui en assure la dispersion.The operator can then, by action on the handle 36, release the mixture of liquid 10 as desired and of additive 65, which rises through the tube 30 under pressure gas 64 and escapes, in a controlled manner by action of the handle 36, by the diffusion system 37 which ensures the dispersion.

L'extincteur 1, lorsqu'il est vide ou pratiquement vide de liquide 10, peut être rechargé par démontage du couvercle 3, remplissage en liquide 10 par l'orifice 12, remplacement de la bouteille de chasse 66 et de l'opercule 74, et remontage du couvercle 3 ainsi rééquipé.Fire extinguisher 1, when empty or practically empty liquid vacuum 10, can be refilled by dismantling the cover 3, filling with liquid 10 through orifice 12, replacement of the hunting bottle 66 and the cover 74, and reassembly of the cover 3 thus re-equipped.

A titre d'exemple non limitatif, pour un volume de six ou neuf litres d'eau en tant que liquide 10 à pulvériser contenu dans le réservoir 2, et pour un volume de 90 cm3 d'additif 65 à l'état liquide, on peut utiliser comme gaz propulseur 64 60 g de gaz carbonique ou 150 g d'azote, en donnant respectivement à la bouteille de chasse 66 un volume de 200 cm3 ou de 266 cm3.By way of nonlimiting example, for a volume of six or nine liters of water as a liquid 10 to spray contained in tank 2, and for a volume of 90 cm3 of additive 65 in the liquid state, it is possible to use as propellant 64 60 g of carbon dioxide or 150 g nitrogen, respectively giving the bottle of flushes 66 a volume of 200 cm3 or 266 cm3.

L'opercule 74 est choisi en sorte de pouvoir être aisément perforé par l'aiguille 60, mais cet opercule et sa fixation sont choisis de façon à résister à la surpression régnant à l'intérieur de la bouteille de chasse 66 en comparaison avec l'intérieur du réservoir 2 avant perforation dans des conditions normales de stockage de l'extincteur ; en outre, l'opercule 74 est de préférence tourné pour se rompre en priorité, c'est-à-dire préférentiellement à la bouteille de chasse 66, en cas de surpression anormalement élevée dans celle-ci, afin d'éviter une explosion de la bouteille de chasse 66 dans un tel cas. The cover 74 is chosen so as to be able to be easily punctured by needle 60, but this seal and its fixation are chosen so as to resist the overpressure prevailing inside the bottle of flush 66 in comparison with the interior of tank 2 before perforation under normal storage conditions fire extinguisher; in addition, the cover 74 is of preferably turned to break in priority, that is to say preferentially to the flush bottle 66, in case of abnormally high overpressure therein, so to avoid an explosion of the bottle 66 in such a case.

Il va de soi que l'invention n'est pas limitée à la forme de réalisation décrite ci-dessus à titre d'exemple mais qu'elle en embrasse, au contraire, toutes les variantes de réalisation telles que définies dans les revendications. Ainsi, l'opercule 74 pourrait être fixé solidairement à l'intérieur du manchon 78, ou encore au col 72. Dans ce deuxième cas, la bouteille de chasse 66 pourrait alors être vissée directement à l'intérieur du tronçon 45.It goes without saying that the invention is not limited to the embodiment described above as example but that it embraces, on the contrary, all variant embodiments as defined in the claims. So, operculum 74 could be fixed securely inside the sleeve 78, or at pass 72. In this second case, the bottle 66 could then be screwed directly inside section 45.

Claims (10)

  1. Fire extinguisher of the kind comprising:
    a sealed reservoir (2) for a liquid to be sprayed (10), having for said liquid (10) an outlet (21) which opens into the ambient air,
    controlled means (35) for closing and sealing, or opening, said outlet (21),
    a sealed expulsion bottle (66) containing a pressurised gas (64) for use as a propellant for the liquid (10), which bottle is housed inside the reservoir (2) and has an outlet (73) for said propellant gas (64) which opens inside the reservoir (2),
    a closure (74) for blocking and sealing the outlet (73) for the propellant gas (64),
    controlled means (56, 63) for piercing the closure (74),
    means (66) for holding an additive (65) for the liquid to be sprayed (10), which means are housed inside the reservoir (2) and are suitable for isolating the additive (65) from the liquid to be sprayed (10) for as long as the closure (74) has not been pierced and for automatically allowing the additive (65) to mix with the liquid to be sprayed (10) when the closure (74) has been pierced,
       characterised in that the means (66) for holding the additive (65) are formed by the expulsion bottle (66) itself, which contains the pressurised propellant gas (64) and the additive (65) with no partitioning between them, in such a way that the propellant gas (64) drives the additive (65) towards the liquid to be sprayed (10), through the outlet (73) for the propellant gas (64), when the closure (74) has been pierced.
  2. Fire extinguisher according to claim 1, characterised in that the additive (65) is a liquid.
  3. Fire extinguisher according to either of claims 1 and 2, characterised in that, where it is intended to be used in a specific orientation in which the outlet (73) for the propellant gas (64) is directed upwards, the expulsion bottle (66) contains within it a sealed dipping riser tube (88) which has a sealed connection to the outlet (73) for the propellant gas (64) and which opens downwards in a lower zone (69) of the expulsion bottle (66), preferably as low as possible in the latter, by reference to said orientation.
  4. Fire extinguisher according to any of claims 1 to 3, characterised in that it comprises means (87) to promote the dispersion of the additive (65) in the liquid to be sprayed (10) when the closure (74) has been pierced.
  5. Fire extinguisher according to claim 4, characterised in that, where it is intended to be used in a specific orientation in which the outlet (73) for the propellant gas (64) is arranged in an upper zone (9) of the reservoir (2), the means (87) for promoting the dispersion of the additive (65) comprise, inside the reservoir (2) but outside the expulsion bottle (66), a sealed dipping dispersion tube (87) which has a sealed connection to the outlet (73) for the propellant gas (64) and which opens downwards into the reservoir (2), preferably within the liquid to be sprayed (10), by reference to said orientation.
  6. Fire extinguisher according to any of claims 1 to 5, characterised in that, where it is intended to be used in a specific orientation in which the outlet (21) for the liquid to be sprayed (10) is arranged in an upper zone (9) of the reservoir (2), the reservoir (2) comprises within it, outside the expulsion bottle (66), a sealed dipping riser tube (30) which has a sealed connection to the outlet (21) for the liquid to be sprayed (10) and which opens downwards in a lower zone (7) of the reservoir (2), preferably as low as possible in the latter, by reference to the said orientation.
  7. Fire extinguisher according to claims 5 and 6, characterised in that the dipping dispersion tube (87) opens within the reservoir (2) substantially higher than the dipping riser tube (30) connected to the outlet (21) for the liquid to be sprayed (10), by reference to said orientation.
  8. Fire extinguisher according to any of claims 1 to 7, characterised in that, where its reservoir (2) comprises an orifice (12) for filling with liquid to be sprayed (10) and a cap (3) which is added to the reservoir (2) in a solidly secured, and in particular detachable, fashion and which blocks and seals the filling orifice (12), the cap (3) carries the expulsion bottle (66), which is sized to be able to pass through the filling orifice (12), in a solidly secured, and in particular detachable, fashion.
  9. Fire extinguisher according to claim 8, characterised in that the cap (3) also carries the controlled piercing means (56, 63).
  10. Fire extinguisher according to either of claims 8 and 9, characterised in that the cap (3) also has the outlet (21) for the liquid to be sprayed (10).
EP97420030A 1996-02-27 1997-02-26 Liquid spraying fire extinguisher Expired - Lifetime EP0792665B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9602386A FR2745188B1 (en) 1996-02-27 1996-02-27 LIQUID SPRAYER
FR9602386 1996-02-27

Publications (2)

Publication Number Publication Date
EP0792665A1 EP0792665A1 (en) 1997-09-03
EP0792665B1 true EP0792665B1 (en) 2001-08-29

Family

ID=9489598

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97420030A Expired - Lifetime EP0792665B1 (en) 1996-02-27 1997-02-26 Liquid spraying fire extinguisher

Country Status (7)

Country Link
EP (1) EP0792665B1 (en)
AT (1) ATE204776T1 (en)
DE (1) DE69706340T2 (en)
DK (1) DK0792665T3 (en)
ES (1) ES2162222T3 (en)
FR (1) FR2745188B1 (en)
PT (1) PT792665E (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6742599B1 (en) 1999-11-25 2004-06-01 Seog-Beom Kang Fire extinguisher

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2779656B1 (en) 1998-06-15 2000-08-11 Extincteurs Harden EXTRACTOR TUBE FOR AUXILIARY GAS EXTINGUISHER EXTINGUISHING POWDER PROPELLER, EXTINGUISHER HEAD ASSOCIATED WITH SAID TUBE AND EXTINGUISHER COMPRISING SUCH A HEAD
EP1488829B1 (en) * 1999-03-31 2007-04-18 Aerojet-General Corporation Hybrid fire extinguisher
EP2008693A1 (en) * 2007-06-27 2008-12-31 Erhard Rothgangl Piercer for a compressed gas vessel

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR974326A (en) * 1947-10-28 1951-02-21 Fire extinguisher
GB1548143A (en) * 1978-02-21 1979-07-04 Nu Swift Int Ltd Fire extinguishers
FR2649325B1 (en) * 1989-07-07 1993-10-22 Lahouati Michel PERFECTED EXTINGUISHER
FR2670389A1 (en) * 1990-12-14 1992-06-19 Desautel Usines Water extinguisher in which the additive is contained in a flexible tube

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6742599B1 (en) 1999-11-25 2004-06-01 Seog-Beom Kang Fire extinguisher

Also Published As

Publication number Publication date
FR2745188A1 (en) 1997-08-29
DE69706340D1 (en) 2001-10-04
FR2745188B1 (en) 1998-04-30
ES2162222T3 (en) 2001-12-16
ATE204776T1 (en) 2001-09-15
PT792665E (en) 2002-02-28
DE69706340T2 (en) 2002-02-07
EP0792665A1 (en) 1997-09-03
DK0792665T3 (en) 2001-12-17

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