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FR2790722A1 - Liquid petrol gas fire alert mechanism having container with inner clear dense smoke emitting material activated by fire opening front enclosure. - Google Patents

Liquid petrol gas fire alert mechanism having container with inner clear dense smoke emitting material activated by fire opening front enclosure. Download PDF

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Publication number
FR2790722A1
FR2790722A1 FR9903104A FR9903104A FR2790722A1 FR 2790722 A1 FR2790722 A1 FR 2790722A1 FR 9903104 A FR9903104 A FR 9903104A FR 9903104 A FR9903104 A FR 9903104A FR 2790722 A1 FR2790722 A1 FR 2790722A1
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FR
France
Prior art keywords
smoke
fire
plug
combustion
opening
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
FR9903104A
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French (fr)
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FR2790722B1 (en
Inventor
Patrick Chevassu
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Individual
Original Assignee
Individual
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Publication date
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Priority to FR9903104A priority Critical patent/FR2790722B1/en
Publication of FR2790722A1 publication Critical patent/FR2790722A1/en
Application granted granted Critical
Publication of FR2790722B1 publication Critical patent/FR2790722B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K15/03006—Gas tanks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/12—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/12—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures
    • F17C13/123—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures for gas bottles, cylinders or reservoirs for tank vehicles or for railway tank wagons
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
    • G08B5/40—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using smoke, fire or coloured gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0147—Shape complex
    • F17C2201/0157—Polygonal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • F17C2221/035—Propane butane, e.g. LPG, GPL
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146—Two-phase
    • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/07—Actions triggered by measured parameters
    • F17C2250/072—Action when predefined value is reached
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/04—Reducing risks and environmental impact
    • F17C2260/042—Reducing risk of explosion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0165—Applications for fluid transport or storage on the road
    • F17C2270/0168—Applications for fluid transport or storage on the road by vehicles

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Sustainable Energy (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Sustainable Development (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

The alert visual mechanism is installed in a car near to the liquid petrol gas storage. There is a smoky material (2) held in a container (1) with a front closing mechanism (3). The mechanism opens of there is a fire, emitting a dense clear smoke.

Description

- 1- La présente invention concerne un dispositif d'alerte visuelle qui,- 1- The present invention relates to a visual alert device which,

en cas d'incendie, permet d'identifier avec certitude la présence d'un réservoir contenant du gaz liquéfié se trouvant dans un véhicule équipé d'une alimentation par carburant de type << GPL " (gaz de pétrole liquéfié) 5 ou dérivés, ainsi que les réservoirs ou bouteilles contenant des gaz inflammables se trouvant dans des lieux ou locaux à usage privé, publique  in the event of a fire, makes it possible to identify with certainty the presence of a tank containing liquefied gas in a vehicle fitted with a fuel supply of the "LPG" type (liquefied petroleum gas) 5 or derivatives, as well as tanks or bottles containing flammable gases located in places or premises for private, public use

ou professionnel. La récente explosion d'un véhicule " G.P.L. " en feu, provoquant des blessures aux Sapeur-Pompiers intervenant, pose le problème.  or professional. The recent explosion of a "G.P.L." vehicle on fire, causing injuries to the firefighters intervening, poses the problem.

Interrogés à ce sujet, les Sapeur-Pompiers souhaitent savoir avec certitude si le véhicule en feu qu'ils vont éteindre est ou pas équipé au gaz; Par ailleurs,  Asked about this, the firefighters want to know with certainty whether the burning vehicle they are going to extinguish is or is not equipped with gas; Otherwise,

ils s'opposent aux solutions par marquages extérieurs permanents, peu ou pas visibles pendant l'incendie, et surtout risquant d'orienter les incendiaires vers ce type de véhicule.15 Aucun système d'identification, se rapportant à la demande des services de secours, n'existe à ce jour.  they oppose solutions by permanent external markings, little or not visible during the fire, and above all risking directing the arsonists towards this type of vehicle.15 No identification system, relating to the request of the emergency services , does not exist to date.

Le dispositif suivant l'invention permet de résoudre ce problème en répondant précisément aux critères de la demande.  The device according to the invention makes it possible to solve this problem by precisely meeting the criteria of the request.

Il comporte en effet selon une première caractéristique un boîtier (1) présentant une ouverture de dégagement, contenant une matière fumigène (2) et fermé par un bouchon (3) permettant la mise en combustion de la matière fumigène (2) lors de l'incendie -(FIG:2,3,4). Le principe étant que lorsqu'un incendie se propage vers ou sur un réservoir contenant du gaz, le dispositif, qui se trouve sur ou à proximité immédiate du réservoir, déclenche la combustion du fumigène (2), générant une épaisse fumée de couleur claire et voyante reconnaissable qui avertira nimmédiatement les personnes se trouvant trop prés de l'incendie et surtout les personnels intervenants, du danger d'explosion du réservoir de gaz ainsi repéré, sans qu'aucun marquage extérieur n'en fasse état.30 -Suivant des modes particuliers de réalisation: LE BOITIER (1) comporte une ouverture de dégagement dont la dimension, ainsi que celle du boîtier, sont détermnninées pour la quantité de matière fumigène (2) tel que ces deux paramètres permettent un dégagement de fumée pendant un temps au moins égal ou supérieur à la durée de tenue35 au feu testée du réservoir avant explosion. Le boîtier (1) est réalisé dans une matière résistante au feu et peut recevoir divers modes de fixations en  According to a first characteristic, it indeed comprises a housing (1) having a clearance opening, containing a smoke-producing material (2) and closed by a plug (3) allowing the combustion of the smoke-producing material (2) during the fire - (FIG: 2,3,4). The principle being that when a fire spreads towards or on a tank containing gas, the device, which is on or in the immediate vicinity of the tank, starts the combustion of the smoke smoke (2), generating a thick smoke of clear color and recognizable warning light which will immediately warn people who are too close to the fire and especially the personnel involved, of the danger of explosion of the gas tank thus identified, without any external marking notifying it. particular embodiments: THE HOUSING (1) has a release opening, the size of which, as well as that of the case, are determined for the quantity of smoke-producing material (2) such that these two parameters allow smoke to be released for at least a time equal to or greater than the duration of fire resistance 35 tested of the tank before explosion. The housing (1) is made of a fire-resistant material and can receive various modes of fixing in

fonction des normes en vigueur et des contraintes de positionnement.  according to current standards and positioning constraints.

-2- LA MATIERE FUMIGENE (2) se trouve en quantité nécessaire pour dégager une fumée pendant un temps au moins égal ou  -2- THE FUMIGENE MATERIAL (2) is in a quantity necessary to give off smoke for a time at least equal or

supérieur à la durée de tenue au feu testée du réservoir avant explosion.  greater than the duration of fire resistance tested of the tank before explosion.

La fumée dégagée est suffisamment dense, claire et visible, sa couleur peut être déterminée par les Services intervenants concernés. LE BOUCHON (3) est pourvu d'un moyen d'ouverture qui peut être en matière fusible ou pourvu de matière fusible, cette dernière peut être de type plomb ou alliages. Cette matière fusible doit fondre à température anormalement élevée ou au contact du feu, permettant la mise en combustion de la matière fumigène (2). Le bouchon (3) ferme hermétiquement le boîtier (1) afin de rendre l'ensemble étanche pour éviter l'altération des matières contenues. Le bouchon (3) peut contenir ou comporter un élément d'artifice ou pyrotechnique (4) propre à déclencher ou à aider au déclenchement de la combustion du fumigène (2)-(FIG:3). Le bouchon (3) peut être doté d'un moyen capteur (5) de températures anormalement élevées ou de flammes et qui devra se trouver en liaison directe, sur ou à proximité immédiate du  The smoke released is sufficiently dense, clear and visible, its color can be determined by the relevant intervening departments. THE PLUG (3) is provided with an opening means which may be of fusible material or provided with fusible material, the latter may be of lead or alloy type. This fusible material must melt at an abnormally high temperature or in contact with fire, allowing combustion of the smoke-producing material (2). The plug (3) hermetically closes the housing (1) in order to make the assembly watertight to avoid alteration of the materials contained. The plug (3) may contain or include a firework or pyrotechnic element (4) capable of triggering or helping to trigger the combustion of the smoke smoke (2) - (FIG: 3). The plug (3) can be fitted with a sensor (5) for abnormally high temperatures or flames and which must be in direct connection, on or in the immediate vicinity of the

réservoir de gaz-(FIG:4).gas tank- (FIG: 4).

Afin d'éviter un très faible risque de non déclenchement du système par l'un ou l'autre des principes envisagés concernant le bouchon (3), il peut être établi une dualité de système telle que le bouchon (3) pourvu de matière fusible, comporte par exemple un élément d'artifice (4) plus un moyen capteur (5) ou un élément pyrotechnique (4) plus un moyen capteur (5) ou bien encore la pose de deux dispositifs séparés ou accolés, pour un même réservoir avec, par exemple, un système différent et propre à chaque  In order to avoid a very low risk of non-triggering of the system by one or other of the principles envisaged concerning the plug (3), a duality of system can be established such as the plug (3) provided with fusible material , includes for example a firework element (4) plus a sensor means (5) or a pyrotechnic element (4) plus a sensor means (5) or even the installation of two separate or attached devices, for the same tank with , for example, a different system specific to each

dispositifs; ces combinaisons n'étant pas limitatives.  devices; these combinations are not limiting.

Les formes et dimensions du dispositif sont définies par  The shapes and dimensions of the device are defined by

les contraintes techniques de fabrication.  technical manufacturing constraints.

Le dispositif est installé impérativement sur ou à proximité immédiate du réservoir contenant le gaz et est autonome dans son fonctionnement afin d'éviter tous risque de rupture de la chamîne de déclenchement et de fonctionnement-(FIG: 1) Le dispositif suivant l'invention est particulièrement destiné à alerter toutes personnes présentes sur le site d'un incendie, et surtout les personnels de secours intervenants, de la présence d'un réservoir de gaz et donc du risque d'explosion de ce dernier; Par exemple: les Services des Sapeur-Pompiers et de PoliceSecours intervenants sur un véhicule équipé au " G.P.L. " en feu dans un secteur à forte densité  The device is imperatively installed on or in the immediate vicinity of the tank containing the gas and is autonomous in its operation in order to avoid any risk of rupture of the triggering and operating chain - (FIG: 1) The device according to the invention is particularly intended to alert all persons present on the site of a fire, and especially the emergency personnel intervening, of the presence of a gas tank and therefore of the risk of its explosion; For example: the fire brigade and emergency police services on a vehicle equipped with "G.P.L." on fire in a high density area

de population et de nuit.population and night.

-3--3-

Claims (4)

REVENDICATIONS 1) Dispositif d'identification, en cas d'incendie et par alerte visuelle, de la présence d'un réservoir contenant du gaz liquéfié se trouvant soit dans un véhicule, soit dans un lieu à usage privé, publique ou professionnel, caractérisé en ce qu'il comporte un boitier (1) présentant une ouverture5 de dégagement, contenant une matière fumigène (2) produisant une fumée dense, claire et voyante, fermé par un bouchon (3) pourvu d'un  1) Device for identifying, in the event of a fire and by visual alert, the presence of a tank containing liquefied gas located either in a vehicle or in a place for private, public or professional use, characterized in that that it comprises a housing (1) having a clearance opening5, containing a smoke-producing material (2) producing a dense, clear and showy smoke, closed by a plug (3) provided with a moyen d'ouverture permettant, sous l'action de la chaleur du feu, le déclenchement de la combustion de la matière fumigène. Le dispositif est installé impérativement sur ou à proximité immédiate du réservoirio contenant le gaz, son fonctionnement est autonome (FIG: 1).  opening means allowing, under the action of the heat of the fire, the triggering of the combustion of the smoke-producing material. The device must be installed on or in the immediate vicinity of the reservoirio containing the gas, its operation is autonomous (FIG: 1). 2) Dispositif selon la revendication 1 caractérisé en ce que le moyen d'ouverture du bouchon (3) peut être pourvu d'une matière fusible telle  2) Device according to claim 1 characterized in that the means for opening the plug (3) can be provided with a fusible material such qu'elle fonde sous l'action de la chaleur ou du feu et permette la combustion de la matière fumigène (2) - (FIG:2).153) Dispositif selon l'une quelconque des revendications caractérisé en ce que l'ouverture de dégagement du boitier (1) et la quantité de matière  that it melts under the action of heat or fire and allows the combustion of the smoke-producing material (2) - (FIG: 2) .153) Device according to any one of the claims characterized in that the opening of clearance of the housing (1) and the quantity of material fumigène (2) soient telles que la durée de dégagement de la fumée du fumigène soit au moins égale ou supérieure à la durée de tenue au feu testée du réservoir avant explosion (FIG:2,3,4).204) Dispositif selon l'une quelconque des revendications caractérisé en ce que la matière fumigène (2) puisse amorcer seule sa combustion par  smoke generator (2) are such that the duration of smoke smoke generation is at least equal to or greater than the duration of fire resistance tested of the tank before explosion (FIG: 2,3,4) .204) Device according to any one of the claims characterized in that the smoke-producing material (2) can initiate its combustion alone by contact avec le feu après l'ouverture du bouchon (1) - (FIG:2,3,4). 5) Dispositif selon l'une quelconque des revendications caractérisé en ce que le bouchon (3) contienne une matière d'artifice (4) propre à  contact with fire after opening the plug (1) - (FIG: 2,3,4). 5) Device according to any one of claims characterized in that the plug (3) contains a firework material (4) suitable for déclencher ou à aider au déclenchement de la combustion de la matière  initiate or assist in the initiation of material combustion fumigène (2) dés l'ouverture du bouchon (3) - (FIG:3).  smoke smoke (2) as soon as the cap is opened (3) - (FIG: 3). 6) Dispositif selon l'une quelconque des revendications caractérisé en ce que le bouchon (3) soit doté d'un moyen capteur (5) de température  6) Device according to any one of claims characterized in that the plug (3) is provided with a temperature sensor means (5) anormalement élevée ou de flamme, se trouvant en liaison directe sur ou30 à proximité immédiate du réservoir de gaz (FIG:4).  abnormally high or of flame, being in direct connection on ou30 in the immediate vicinity of the gas tank (FIG: 4). 7) Dispositif selon l'une quelconque des revendications caractérisé en ce que la combustion de la matière fumigène (2) soit déclenchée par  7) Device according to any one of claims characterized in that the combustion of the smoke material (2) is triggered by dualité de système.system duality.
FR9903104A 1999-03-12 1999-03-12 VISUAL EXPLOSION RISK INDICATOR IN THE EVENT OF A FIRE ON A TANK CONTAINING LIQUEFIED GAS Expired - Fee Related FR2790722B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9903104A FR2790722B1 (en) 1999-03-12 1999-03-12 VISUAL EXPLOSION RISK INDICATOR IN THE EVENT OF A FIRE ON A TANK CONTAINING LIQUEFIED GAS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9903104A FR2790722B1 (en) 1999-03-12 1999-03-12 VISUAL EXPLOSION RISK INDICATOR IN THE EVENT OF A FIRE ON A TANK CONTAINING LIQUEFIED GAS

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FR2790722A1 true FR2790722A1 (en) 2000-09-15
FR2790722B1 FR2790722B1 (en) 2001-04-27

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2811117A1 (en) * 2000-06-29 2002-01-04 Giat Ind Sa Distance material/product identification unit having product related signalling mechanism and measurement mechanisms detecting response with coordinating switching unit.
FR2813976A1 (en) * 2000-09-13 2002-03-15 Peugeot Citroen Automobiles Sa Car fuel combustion identification method having visual identification substance free following determined temperature/pressure
FR2832835A1 (en) * 2001-11-29 2003-05-30 Jean Marie Charles Brousse Emergency security services vehicle liquid petrol gas tank detection/identification portable unit having first omni directional antenna security services interrogated and second direction antenna finding tank location
FR2836269A1 (en) * 2002-02-18 2003-08-22 Nicolas Besnard LPG fueled vehicle identification unit has air bag controlled compressed air powder dispenser
WO2003076765A1 (en) * 2002-03-13 2003-09-18 Stricker, Kenneth, Bernard Safety system
CN104006292A (en) * 2014-06-21 2014-08-27 刘印同 Vehicle-mounted liquefied gas cylinder quality safety monitoring device and monitoring method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2128103A1 (en) * 1971-06-05 1973-01-04 Jakob Maul WARNING DEVICES AND SIGNALS IN TRAFFIC AND TRANSPORTATION
GB1445883A (en) * 1973-02-23 1976-08-11 Serpro Soc Detudes Et De Rech Device for automatic signalling of an automotive vehicle damaged by collision
DE2641155A1 (en) * 1976-09-13 1978-03-16 Anton Arnschek Vehicle accident or breakdown communication equipment - has two receivers and two transmitters operating on different frequencies to give optical and audible warning
EP0088709A1 (en) * 1982-03-05 1983-09-14 Jean Claude Rahem Smoke-producing alarm device with a pre-alarm for the protection of vehicles and such
FR2723896A1 (en) * 1994-08-29 1996-03-01 Briere Jean Impact-initiated distress flare system for highway vehicles

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2128103A1 (en) * 1971-06-05 1973-01-04 Jakob Maul WARNING DEVICES AND SIGNALS IN TRAFFIC AND TRANSPORTATION
GB1445883A (en) * 1973-02-23 1976-08-11 Serpro Soc Detudes Et De Rech Device for automatic signalling of an automotive vehicle damaged by collision
DE2641155A1 (en) * 1976-09-13 1978-03-16 Anton Arnschek Vehicle accident or breakdown communication equipment - has two receivers and two transmitters operating on different frequencies to give optical and audible warning
EP0088709A1 (en) * 1982-03-05 1983-09-14 Jean Claude Rahem Smoke-producing alarm device with a pre-alarm for the protection of vehicles and such
FR2723896A1 (en) * 1994-08-29 1996-03-01 Briere Jean Impact-initiated distress flare system for highway vehicles

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2811117A1 (en) * 2000-06-29 2002-01-04 Giat Ind Sa Distance material/product identification unit having product related signalling mechanism and measurement mechanisms detecting response with coordinating switching unit.
FR2813976A1 (en) * 2000-09-13 2002-03-15 Peugeot Citroen Automobiles Sa Car fuel combustion identification method having visual identification substance free following determined temperature/pressure
FR2832835A1 (en) * 2001-11-29 2003-05-30 Jean Marie Charles Brousse Emergency security services vehicle liquid petrol gas tank detection/identification portable unit having first omni directional antenna security services interrogated and second direction antenna finding tank location
FR2836269A1 (en) * 2002-02-18 2003-08-22 Nicolas Besnard LPG fueled vehicle identification unit has air bag controlled compressed air powder dispenser
WO2003076765A1 (en) * 2002-03-13 2003-09-18 Stricker, Kenneth, Bernard Safety system
CN104006292A (en) * 2014-06-21 2014-08-27 刘印同 Vehicle-mounted liquefied gas cylinder quality safety monitoring device and monitoring method thereof
CN104006292B (en) * 2014-06-21 2015-11-04 刘印同 Vehicle-mounted liquefied gas bottle quality safety supervisory device and monitoring method thereof

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