EP1197245A2 - Portable or rolling foam extinguisher with pressurised air and foam consolidation - Google Patents

Portable or rolling foam extinguisher with pressurised air and foam consolidation Download PDF

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Publication number
EP1197245A2
EP1197245A2 EP01122616A EP01122616A EP1197245A2 EP 1197245 A2 EP1197245 A2 EP 1197245A2 EP 01122616 A EP01122616 A EP 01122616A EP 01122616 A EP01122616 A EP 01122616A EP 1197245 A2 EP1197245 A2 EP 1197245A2
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EP
European Patent Office
Prior art keywords
extinguishing agent
foam
extinguishing
container
compressed gas
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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
EP01122616A
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German (de)
French (fr)
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EP1197245A3 (en
EP1197245B1 (en
Inventor
Anton Neumeir
Reinhard Effenberger
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Effenberger Reinhard
Neumeir Anton
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Effenberger Reinhard
Neumeir Anton
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Publication date
Priority claimed from DE10109922A external-priority patent/DE10109922A1/en
Application filed by Effenberger Reinhard, Neumeir Anton filed Critical Effenberger Reinhard
Publication of EP1197245A2 publication Critical patent/EP1197245A2/en
Publication of EP1197245A3 publication Critical patent/EP1197245A3/en
Application granted granted Critical
Publication of EP1197245B1 publication Critical patent/EP1197245B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C5/00—Making of fire-extinguishing materials immediately before use
    • A62C5/02—Making of fire-extinguishing materials immediately before use of foam
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C31/00—Delivery of fire-extinguishing material
    • A62C31/02—Nozzles specially adapted for fire-extinguishing
    • A62C31/12—Nozzles specially adapted for fire-extinguishing for delivering foam or atomised foam

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Nozzles (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

Movable or rollable foam extinguisher comprises a pressure-resistant container holding water and extinguishing agent, a gas cylinder for pressurizing the container to expel the extinguishing agent, and a pistol (1) connected via a pressure-resistant tube (3) to the inside of the pressurized container. A mixing device (4) is provided between the tube and the pistol and is connected to a pressurized gas line (5) attached to the gas cylinder via a pressurized gas fitting so that when the container is pressurized, pressurized gas is simultaneously fed from the gas cylinder via the mixing device into the extinguishing agent line. Preferred Features: The mixing device is arranged directly before the pistol. The pressurized gas fitting allows adjustment of the relative distribution of pressurized gas fed into the container and the mixing device. The working pressure of the extinguishing device is 25-35 bar.

Description

Die Erfindung betrifft ein als Schaumlöscher arbeitendes tragbares oder rollbares Feuerlöschgerät, das druckgasverfestigten Löschschaum erzeugt.The invention relates to a working as a foam extinguisher portable or rollable fire extinguisher that is pressurized Extinguishing foam generated.

Feuerlöschsysteme, die mit druckgasverfestigtem Schaum arbeiten, sind ansich bekannt, und werden in der Fachwelt mit CAFS bezeichnet, was für "Compressed Air Foam System", also "Druckluft-Schaum-System" steht.Fire extinguishing systems that work with compressed gas-hardened foam, are known per se and are used in the professional world with CAFS denotes what "Compressed Air Foam System", so "Compressed air foam system" stands.

Bereits in den frühen dreißiger Jahren wurden erste Kompressor-Luftschaumgeräte als Feuerlöschgeräte gebaut. In den dreißiger Jahren wurde bereits einmal eine Tragkraftspritze mit angeflanschtem Kompressor zur Erzeugung von Druckschaum gebaut.The first compressor air foam devices were already in the early thirties built as fire extinguishers. In the 1930s was a portable pump with flange-mounted compressor for generating pressure foam built.

Heute arbeiten bekannte CAFS-Löschsysteme in der Weise, daß die zur Schaumerzeugung benötigte Luft durch einen Kompressor mit einem Förderdruck von ca. 7 bis 10 bar dem Löschmittelstrom zugeführt. Das Löschmittel besteht aus Wasser mit zugesetztem Schaummittel. Durch die Zuführung der Druckluft zu dem mittels einer Pumpe geförderten Löschmittelstrom wird diesem zusätzliche Energie zugeführt. Dadurch ergeben sich erheblich bessere Wurfweiten sowie eine äußerst homogene Schaumblasenstruktur mit bislang nicht bekannter Haftwirkung. CAFS ist eine Weiterentwicklung des Schaumlöschverfahrens mit Wasser unter Zusatz von Class-A-Foam (Netzmittel). CAFS kann sowohl bei der Brandklasse A (Feststoffbrände) als auch bei der Brandklasse B (Flüssigkeitsbrände) angewendet werden. Durch umweltverträgliche Schaummittel, geringen Schaummittelverbrauch (Zumischung zwischen 0,1 bis 10% zum Wasser), Einsparung von Löschwasser und erheblich effektivere Brandbekämpfung ergibt sich auch eine positive Umweltbilanz. Untersuchungen haben ergeben, daß durch den Einsatz von CAFS der Löschwasserverbrauch zum Löschen eines Brandes gegenüber herkömmlichen Löschverfahren auf bis ca. 1/6 reduziert werden kann. Dadurch wird auch die Sicherheit der Einsatzkräfte erhöht und deren Belastung verringert.Today known CAFS extinguishing systems work in such a way that the air required for foam generation by a compressor with a discharge pressure of approx. 7 to 10 bar the extinguishing agent flow fed. The extinguishing agent consists of water with added Foaming agent. By supplying the compressed air the flow of extinguishing agent conveyed by a pump this added additional energy. This results in significantly better throwing distances and an extremely homogeneous Foam bubble structure with previously unknown adhesive properties. CAFS is a further development of the foam extinguishing process with Water with the addition of Class A foam (wetting agent). CAFS can both with fire class A (solid fires) and with fire class B (liquid fires) can be used. Thanks to environmentally friendly foaming agents, low foaming agent consumption (Admixture between 0.1 and 10% to the water), saving of fire fighting water and considerably more effective fire fighting there is also a positive environmental balance. investigations have shown that by using CAFS the Extinguishing water consumption to extinguish a fire compared to conventional ones Deletion procedures can be reduced to approx. 1/6 can. This also increases the security of the emergency services and reduce their burden.

Ein CAFS-System besteht bisher aus den Komponenten Feuerlöschkreiselpumpe zur Wasserförderung, Luftkompressor zur Drucklufterzeugung, und Schaumzumischsystem zum Zumischen von Schaummittel mit Mischventil und zugehöriger Regeltechnik.A CAFS system has so far consisted of the components of a fire-fighting centrifugal pump for water supply, air compressor for Compressed air generation, and foam proportioning system for admixing Foam agent with mixing valve and associated control technology.

Solche CAFS-Systeme werden gegenwärtig fest in Feuerlöschfahrzeuge eingebaut.Such CAFS systems are currently becoming fixed in fire engines built-in.

Aufgabe der Erfindung ist es, ein trag- oder rollbares Feuerlöschgerät zu schaffen, das mit Druckgas-Schaumverfestigung entsprechend dem an sich bekannten CAFS-System arbeitet und entsprechende Vorteile im Einsatz erzielt.The object of the invention is a portable or rollable fire extinguisher to create that with compressed gas foam consolidation works according to the known CAFS system and achieved corresponding advantages in use.

Bekannte tragbare oder rollbare Feuerlöschgeräte für flüssige Löschmittel wie Wasser oder Schaum arbeiten nach dem Prinzip, daß das Löschmittel mittels Gas (Kohlendioxid, Stickstoff oder Druckluft) aus einer Treibgasflasche aus dem Löschmittelbehälter ausgetrieben wird. Dabei kann über entsprechende Drücke und Düsen eine höhere Verschäumung bzw. stärkere Wasservernebelung erreicht werden. Die oben beschriebenen Eigenschaften von CAFS-Systemen können aber von keinem bisher bekannten trag- oder rollbaren Feuerlöschgerät erreicht werden.Known portable or rollable fire extinguishers for liquid Extinguishing agents such as water or foam work on the principle that the extinguishing agent by means of gas (carbon dioxide, nitrogen or compressed air) from a propellant bottle from the extinguishing agent container is driven out. You can use the appropriate Pressures and nozzles a higher foaming or stronger water atomization can be achieved. The properties described above CAFS systems cannot be used by any previously known portable or rollable fire extinguisher.

Die Erfindung löst die genannte Aufgabe durch das im Anspruch 1 angegebene Löschgerät. Vorteilhafte Ausgestaltungen der Erfindung sind Gegenstand der Unteransprüche.The invention solves the stated object by the claim 1 specified fire extinguisher. Advantageous embodiments of the Invention are the subject of the dependent claims.

Durch das erfindungsgemäße Löschgerät mit CAFS-Eigenschaften werden vielfältige Verbesserungen erreicht. Der so erzeugte Schaum hat ein Tröpfchen-Spektrum mit kleinerer Teilchengröße. Der erzeugte Schaum kann deshalb besser in die Brandstoffe eindringen, verweilt dort länger, und steigert durch die Benetzung die Löschwirkung. Das erfindungsgemäße Löschgerät ist bei Stoffen der Brandklassen A und B mit großem Erfolg einsetzbar.Through the extinguishing device according to the invention with CAFS properties diverse improvements are achieved. The so generated Foam has a droplet spectrum with a smaller particle size. The foam generated can therefore better in the fuels penetrate, stay there longer and intensify the wetting the extinguishing effect. The extinguishing device according to the invention is very successful with fabrics of fire classes A and B. used.

Bei dem erfindungsgemäßen Gerät wird Treibgas dosiert zugeführt. Der so entstehende druckgasverfestigte Schaum hat aufgrund seiner homogenen Schaumblasenstruktur ein stark verbessertes Haftvermögen an den Brandstoffen. Insbesondere an senkrechten Flächen oder über Kopf haftet der Schaum längere Zeit und kann daher wesentlich effektiver als Wasser oder Schaum aus bisherigen Löschgeräten eingesetzt werden. Versuche haben belegt, daß der druckgasverfestigte Schaum aus dem erfindungsgemäßen Gerät sogar an Glasscheiben längere Zeit haften bleibt.In the device according to the invention, propellant gas is metered in. The resulting compressed gas-hardened foam is due to its homogeneous foam bubble structure a greatly improved Adhesion to the fire materials. Especially at The foam sticks longer on vertical surfaces or overhead Time and therefore can be much more effective than water or Foam from previous extinguishers can be used. tries have proven that the pressurized foam from the device according to the invention even longer on glass panes Time sticks.

Ein Ausführungsbeispiel der Erfindung wird nachstehend unter Bezugnahme auf die anliegende Zeichnung mehr im einzelnen beschrieben. Die Zeichnung zeigt in Seitenansicht die Löschpistole mit den Zuleitungen und einer Mischeinrichtung; der übrige Teil des Löschgeräts mit Löschmittelbehälter, Druckgasflasche und Armaturen ist nicht dargestellt.An embodiment of the invention is described below Described in more detail with reference to the accompanying drawings. The drawing shows the fire gun in side view with the supply lines and a mixing device; the remaining part of the extinguisher with extinguishing agent container, compressed gas bottle and fittings is not shown.

Der nichtdargestellte Löschmittelbehälter ist als Druckbehälter ausgebildet, der mit Wasser unter Zusatz eines Schaummittels gefüllt ist. Eine Druckgasflasche ist in an sich bekannter Weise an den Löschmittelbehälter angekuppelt und mit entsprechender Armatur versehen. Dabei ist die (ebenfalls nicht abgebildete) Armatur der Druckgasflasche so ausgebildet, daß Druckgas aus der Druckgasflasche bei Inbetriebnahme des Löschgeräts nicht nur in den Löschmittelbehälter, sondern auch in die Zuleitung des Löschmittels zur Löschpistole geleitet wird.The extinguishing agent container, not shown, is a pressure container trained with water with the addition of a foaming agent is filled. A compressed gas cylinder is known per se Coupled to the extinguishing agent container and with appropriate fitting provided. The (also not shown) fitting of the compressed gas bottle designed so that pressurized gas from the pressurized gas bottle when starting up of the extinguisher not only in the extinguishing agent container, but also also passed into the supply line of the extinguishing agent to the extinguishing gun becomes.

Die Zeichnung zeigt die Löschpistole 1 mit der Spritzdüse 2 und dem vom Löschmittelbehälter kommenden Löschmittelschlauch 3. Zwischen dem Löschmittelschlauch 3 und die Löschpistole 1 ist eine Mischarmatur in Gestalt eines entsprechend ausgebildeten T-Anschlußstücks 4 eingebaut, an welchem außerdem ein von der Druckgasflaschenarmatur kommender Druckgasschlauch 5 angeschlossen ist.The drawing shows the extinguishing gun 1 with the spray nozzle 2 and the extinguishing agent hose coming from the extinguishing agent container 3. Between the extinguishing agent hose 3 and the extinguishing gun 1 is a mixer tap in the form of an appropriately trained T-connector 4 installed, which also a Compressed gas hose coming from the compressed gas cylinder fitting 5 connected.

Während bei üblichen trag- oder rollbaren Feuerlöschern mit Betriebsdrücken von maximal 16 bis 18 bar arbeiten, arbeitet das erfindungsgemäße Feuerlöschgerät vorzugsweise im Hochdruckbereich zwischen 25 und 35 bar. Vorzugsweise wird das erfindungsgemäße Gerät auf Basis eines an sich bekannten Hochdruckwasser-bzw.-Schaumlöschgeräts nach dem Patent DE 196 46 562 realisiert, bei dem es sich um ein vom Benutzer an Ort und Stelle wiederbefüllbares Gerät mit über eine Schnellkupplung ankuppelbarer Druckgasflasche handelt.While with conventional portable or rollable fire extinguishers Working pressures of maximum 16 to 18 bar work the fire extinguisher according to the invention preferably in the high pressure range between 25 and 35 bar. Preferably that is Device according to the invention based on a known High pressure water or foam extinguisher according to the patent DE 196 46 562 realized, which is a user device that can be refilled on site with over one Compressed gas cylinder quick coupling is.

Bei dem erfindungsgemäßen Gerät erfolgt dadurch, daß das Druckgas aus der Druckgasflasche nicht nur in den Löschmittelbehälter zum Austreiben des Löschmittels unter hohem Druck, sondern außerdem auch noch über die Mischarmatur 5 unmittelbar vor der Löschpistole 1 in die Löschmittelleitung eingeleitet wird, eine starke Vermischung des Löschmittels mit dem als Treibgas dienenden Druckgas. Es ist klar, daß die Einleitung des Druckgases in die Löschmittelleitung über die Mischarmatur, wie dargestellt, vor der Strahlunterbrechungsbzw. Regulierungseinrichtung der Löschpistole 1 erfolgt.In the device according to the invention takes place in that the Pressurized gas from the pressurized gas bottle not only into the extinguishing agent container to expel the extinguishing agent under high Pressure, but also directly via the mixer valve 5 in front of the extinguishing gun 1 into the extinguishing agent line is initiated, a strong mixing of the extinguishing agent with the compressed gas serving as the propellant. It is clear that the Introducing the compressed gas into the extinguishing agent line via the Mixing valve, as shown, before the beam interruption or Regulation device of the extinguishing gun 1 takes place.

Die Beimischung von Druckgas in die Löschmittelleitung, also in den Löschmittelstrom, direkt vorderhalb der Spritzpistole 1 erfolgt in sorgfältig dosierter Weise bei exakt aufeinander abgestimmten Druck- und Volumenstromverhältnissen. Deren Einstellung erfolgt (nicht dargestellt) an der Druckgasflaschenarmatur. Um ein gutes Löschergebnis zu erzielen, soll der Löschmitteldurchfluß bei mindestens 19 L/min liegen und eine Verschäumungszahl von mindestens 7,5 erreicht werden.The admixture of compressed gas in the extinguishing agent line, that is into the extinguishing agent flow, directly in front of the spray gun 1 is done in a carefully metered manner with exactly one on top of the other coordinated pressure and volume flow ratios. Their attitude takes place (not shown) on the compressed gas cylinder fitting. To achieve a good deletion result, the Extinguishing agent flow rate is at least 19 L / min and one Foaming number of at least 7.5 can be achieved.

Mit dem erfindungsgemäßen Gerät wird ein extrem haftender Schaum gebildet, der das gleiche Ergebnis erzielt wie ein durch ein Löschfahrzeug mit CAFS-Ausrüstung erzeugter Schaum. Durch das zusätzlich vor der Löschpistole in den Löschmittelstrom zugeführte Druckgas werden die einzelnen Tröpfchen des Löschmittels erheblich stärker beschleunigt, was zu einer erhöhten Eindringtiefe in das Brandgut führt und damit zu einer erheblichen Effizienzsteigerung während des Löschvorgangs. Dieser Effekt wird bei einem Arbeitsdruck des Löschgeräts im Bereich von 25 bis 35 bar besonders ausgeprägt erreicht.With the device according to the invention is an extremely adhesive Formed foam that achieves the same result as a foam generated by a fire truck with CAFS equipment. Through the additional in front of the extinguishing gun in the flow of extinguishing agent supplied compressed gas are the individual droplets of the Extinguishing agent accelerated considerably more, which led to an increased Penetration depth into the fire material leads to a considerable increase in efficiency during the deletion process. This effect is at a working pressure of the extinguisher in the Range of 25 to 35 bar is particularly pronounced.

Claims (4)

Tragbares oder rollbares Schaumlöschgerät mit einem druckfesten Löschmittelbehälter zur Aufnahme von Wasser unter Zusatz eines Löschmittels, einer Druckgasflasche zur Druckbeaufschlagung des Löschmittelbehälters zum Austreiben des Löschmittels, und einer Löschmittelpistole (1), die über einen druckfesten Löschmittelschlauch (3) mit dem Inneren des Druckmittelbehälters verbunden ist,
dadurch gekennzeichnet, daß zwischen dem Löschmittelschlauch (3) und die Löschpistole (1) eine Mischarmatur (4) eingebaut ist, an welche eine Druckgasleitung (5) angeschlossen ist, die mit der Druckgasflasche über eine Druckgasarmatur verbunden ist, derart, daß bei Druckbeaufschlagung des Löschmittelbehälters aus der Druckgasflasche gleichzeitig auch Druckgas über die Mischarmatur (4) in die Löschmittelleitung eingeleitet wird.Portable or rollable foam extinguisher with a pressure-resistant extinguishing agent container to hold water with the addition of an extinguishing agent, a pressurized gas bottle to pressurize the extinguishing agent container to expel the extinguishing agent, and an extinguishing agent gun (1), which is connected to the interior of the pressure medium container via a pressure-resistant extinguishing agent hose (3) .
characterized in that a mixing fitting (4) is installed between the extinguishing agent hose (3) and the extinguishing gun (1), to which a compressed gas line (5) is connected, which is connected to the compressed gas bottle via a compressed gas fitting, such that when the Extinguishing agent container from the compressed gas bottle at the same time pressurized gas is introduced into the extinguishing agent line via the mixing valve (4). Schaumlöschgerät nach Anspruch 1, wobei die Mischarmatur (4) unmittelbar vor der Löschpistole (1) angeordnet ist.Foam extinguisher according to claim 1, wherein the mixing valve (4) is arranged directly in front of the extinguishing gun (1). Schaumlöschgerät nach Anspruch 1 oder 2, wobei die Druckgasarmatur eine Einstellung der relativen Druckgaszufuhrverteilung in den Löschmittelbehälter und in die Mischarmatur (4) ermöglicht.Foam extinguisher according to claim 1 or 2, wherein the compressed gas fitting an adjustment of the relative compressed gas supply distribution in the extinguishing agent container and in the mixing valve (4) enables. Schaumlöschgerät nach einem der Ansprüche 1 bis 3, wobei der Arbeitsdruck des Löschgeräts im Bereich von etwa 25 bis 35 bar liegt.Foam extinguisher according to one of claims 1 to 3, wherein the working pressure of the extinguisher in the range of about 25 to Is 35 bar.
EP01122616A 2000-10-10 2001-09-27 Portable or rolling foam extinguisher with pressurised air-foam complex Expired - Lifetime EP1197245B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE10049998 2000-10-10
DE10049998 2000-10-10
DE10109922 2001-03-01
DE10109922A DE10109922A1 (en) 2000-10-10 2001-03-01 Portable or rollable foam extinguisher with compressed gas foam consolidation

Publications (3)

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EP1197245A2 true EP1197245A2 (en) 2002-04-17
EP1197245A3 EP1197245A3 (en) 2002-06-19
EP1197245B1 EP1197245B1 (en) 2006-08-23

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EP01122616A Expired - Lifetime EP1197245B1 (en) 2000-10-10 2001-09-27 Portable or rolling foam extinguisher with pressurised air-foam complex

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EP (1) EP1197245B1 (en)
AT (1) ATE337053T1 (en)
DE (1) DE50110792D1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2848865A1 (en) * 2002-12-18 2004-06-25 Detection Lutte Prot Securite Fire fighting device comprises gun and pipe connecting to water inlet, reserve containing floating agent and means for mixing agent and water inside gun
WO2011087383A1 (en) 2010-01-12 2011-07-21 Telesto Sp. Z.O.O. Apparatus for regulating two-phase flow and portable atomizer based on two-phase flow
DE102010022789A1 (en) 2010-06-04 2011-12-08 Hne Technologie Ag Water / foam fire extinguisher with adjustable foam consistency

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DE19646562A1 (en) 1996-11-12 1998-05-20 Anton Neumeir High pressure water fire extinguisher

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US4981178A (en) * 1990-03-16 1991-01-01 Bundy Eric D Apparatus for compressed air foam discharge
US5623995A (en) * 1995-05-24 1997-04-29 Intelagard, Inc. Fire suppressant foam generation apparatus
RU2121390C1 (en) * 1997-05-14 1998-11-10 Научно-исследовательский институт низких температур при МАИ (Московском государственном авиационном институте - техническом университете) Fire-extinguishing plant

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DE19646562A1 (en) 1996-11-12 1998-05-20 Anton Neumeir High pressure water fire extinguisher

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2848865A1 (en) * 2002-12-18 2004-06-25 Detection Lutte Prot Securite Fire fighting device comprises gun and pipe connecting to water inlet, reserve containing floating agent and means for mixing agent and water inside gun
WO2011087383A1 (en) 2010-01-12 2011-07-21 Telesto Sp. Z.O.O. Apparatus for regulating two-phase flow and portable atomizer based on two-phase flow
CN102612387A (en) * 2010-01-12 2012-07-25 特利斯多公司 Apparatus for regulating two-phase flow and portable atomizer based on two-phase flow
CN102612387B (en) * 2010-01-12 2014-12-31 特利斯多公司 Apparatus for regulating two-phase flow and portable atomizer based on two-phase flow
DE102010022789A1 (en) 2010-06-04 2011-12-08 Hne Technologie Ag Water / foam fire extinguisher with adjustable foam consistency
WO2012006988A2 (en) 2010-06-04 2012-01-19 Hne Technologie Ag Water/foam fire extinguisher with adjustable foam consistency
WO2012006988A3 (en) * 2010-06-04 2013-05-10 Hne Technologie Ag Water/foam fire extinguisher with adjustable foam consistency

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EP1197245A3 (en) 2002-06-19
DE50110792D1 (en) 2006-10-05
EP1197245B1 (en) 2006-08-23
ATE337053T1 (en) 2006-09-15

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