EP0534556A1 - Fire protection device and storage space provided with a fire protection device - Google Patents
Fire protection device and storage space provided with a fire protection device Download PDFInfo
- Publication number
- EP0534556A1 EP0534556A1 EP92202921A EP92202921A EP0534556A1 EP 0534556 A1 EP0534556 A1 EP 0534556A1 EP 92202921 A EP92202921 A EP 92202921A EP 92202921 A EP92202921 A EP 92202921A EP 0534556 A1 EP0534556 A1 EP 0534556A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fire
- flame
- protection device
- fire protection
- arresting
- 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
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/94—Protection against other undesired influences or dangers against fire
Definitions
- the invention relates to a fire protection device which is gas-permeable in a non-activated condition, as well as a storage space for highly inflammable and volatile materials, provided with such a fire protection device.
- Another purpose of such a fire-proof chamber or vault is to prevent the formation of an explosive or inflammable mixture as a result of possible leakage of the materials mentioned from their respective container, for which purpose the chamber or vault mentioned is ventilated to a sufficient degree.
- outside air i.e., oxygen.
- a situation that might occur is the situation where the stored gases release a gas, for instance due to a container being improperly sealed, which gas, mixed with ambient air, is extracted and, through one cause or another, ignited.
- the flame extension rate, or the propagation rate of the flame front, upon ignition of a gas mixture is higher than the flow rate of the relative gas, in particular when that flow rate is only provided by ventilation, with the result that a flame starting outside the chamber or vault can reach the interior of the chamber or vault against the gas flow and ignite or even explode the materials present there.
- flame-arresting means are all based on the principle, known with respect to miner's lamps, of a metal wire mesh or grid arranged in the gas stream. A flame front present on the outflow side of such a wire mesh or grid cannot pass the grid; the flame burns on the grid, so to speak.
- a flame-arresting grid does indeed have the above-mentioned effect, major problems arise in practice when the supply of the inflammable gas mixture is maintained for some time, for instance in the case of a leaking container.
- the flame-arresting grid may lose its flame-arresting activity.
- the principal reason for this is that the grid is heated as a result of the flame burning continuously against the grid. Owing to the increasing temperature, the grid may melt and thereby lose its function. In some cases it may even happen that, even before the grid melts, the heated grid ignites the gas mixture on the inflow side of the grid. In the case of prolonged fire, therefore, the known fire protection devices do not have any fire-resisting effect.
- the object of the invention is to provide a fire protection device that combines good flame-arresting activity with good fire-resisting activity, so that the above-mentioned risk is absent, at least reduced.
- any gas stream shut-off element is suitable for this purpose, a preference is expressed for elements that react to an increase in temperature.
- an element is a grid-shaped construction, for instance in the form of a honeycomb, plates, spirals or the like, of a material that foams or swells upon an increase in temperature and thereby closes off the passages of that grid.
- Palusol a registered trade mark of BASF.
- Fireblock a registered trade mark of Dufaylite Development.
- a first problem may be, for instance, that it is not known beforehand on which side of the flow passage the flame will start. It will be clear that in case a fire starts in the chamber, it is equally desired that the fire be prevented from spreading to the outside.
- the fire valve may further be desired to increase the quickness of reaction of the fire valve.
- the fire valve When the fire valve is located on the side of the flame-arresting grid remote from the flame, the fire valve will not perform its function until, after a certain amount of time has lapsed, the heat of the flame has also heated the grid on the other side thereof.
- the reaction of the fire valve can be relatively quick owing to the direct action of the flame, but the chances are that the fire valve will be damaged by the flame itself or even melts.
- the device according to the invention consists of at least three layers, with the separate layers alternately having different functions, i.e., a flame-arresting or a fire-resisting function.
- a device that is active on two sides is to be provided, for instance because it is not known beforehand on which side a fire may start, it is recommended that the device be provided with at least two flame-arresting layers with at least one fire-resisting layer provided therebetween.
- the simplest construction that meets this requirement comprises three layers which are, successively, flame-arresting, fire-resisting and flame-arresting.
- the device is to react very quickly to the presence of a flame by shutting off the gas stream at least partly, it is recommended that the device according to the invention be made so as to comprise at least three layers, with, starting from the side where the flame is expected to begin, a first fire-resisting layer, then a flame-arresting layer, and a second fire-resisting layer.
- the first fire-resisting layer, facing the flame will react very quickly, but when this layer is affected by the presence of the flame, its task can be taken over by the third layer, i.e., the second fire-resisting layer, which is separated from the flame by the second layer, i.e., the flame-arresting layer.
- the device according to the invention can contain several alternate layers.
- a detector in the device according to the invention, which detector reacts to an increase in temperature to above a predetermined level by shutting off a valve operating mechanically, electrically, electro-mechanically or otherwise, so as to shut off the gas stream completely with 100% certainty.
- Fig. 1 shows a workshop 1 in which a separate space 2 has been built for storing chemicals (not shown for the sake of clarity).
- the invention also relates to storage spaces which are to be arranged as loose elements, such as a chamber or vault.
- the chamber, vault or built-in storage space can be intended for the storage of volatile materials, such as thinner and/or other chemicals.
- the storage space is ventilated, to which end, in the situation shown in Fig. 1, a fan 4 arranged on the roof 3 of the workshop 1 is connected via a tube 5 with the ceiling 6 of the storage space 2.
- the storage space 2 is arranged adjacent an outer wall 7 of the workshop 1 and communicates via two tubes 8, 9 with the outside air.
- fresh air enters the storage space 2 via the tubes 8, 9, as indicated by the arrows P1 and P2, while air to be extracted, which may be mixed with gas originating from the volatile materials mentioned, leaves the storage space 2 via the tube 5.
- the storage space 2 is provided with fire protection devices 21, 22 and 23 in the air supply channels 8 and 9 and the air extraction channel 5, respectively.
- FIG. 2 shows a perspective view of such a loose storage chamber 10 with an entrance door 11, with ventilation taking place, not in any forced manner but in a natural manner via two openings 12 and 13 provided in the upper and in the lower part of the door 11, respectively.
- the storage chamber 10 is provided with fire protection devices in the openings 12 and 13, as shown in Fig. 3 in the partial section of the door 11.
- the fire protection devices 14 according to the invention utilized in the chamber 10 comprise a fire-resisting element 15 and a flame-arresting element 16, which are arranged in series with regard to the air stream through the relative opening. Further, on the outside of the door 11 an ornamental grid 17 of the Louvre type is arranged, which does not have any fire protection function.
- the shape of the fire-resisting element 15 and the flame-arresting element 16 can be rectangular or round, adapted to the shape of the openings in the door or the channels.
- the thickness of the flame-arresting element 16 will generally be a few millimeters; the thickness of the fire-resisting element 15 will generally be a few centimeters.
- the flame-arresting element 16 can be made of metal gauze or a metal grid.
- a material that has been found to be particularly suitable and is to be preferred accordingly, is a metal foam, for instance the metal foam known under the name of Recemat (registered trade mark of SEAC International B.V.).
- a preferred embodiment of the fire-resisting element 15, as shown, likewise has a grid-shaped construction, for instance in the form of a honeycomb, plates, sprirals or the like, of a material that foams or swells up in reaction to an increase in temperature, and thereby closes off the passages of the grid.
- a material that foams or swells up in reaction to an increase in temperature and thereby closes off the passages of the grid.
- Palusol a registered trade mark of BASF.
- a material that has been found to be particularly suitable and is to be preferred accordingly, is known under the name of Fireblock (registered trade mark of Dufaylite Development).
- the operation of the fire protection device 14 according to the invention is as follows.
- highly inflammable gases that are present or are being released in the chamber 10 leave the chamber through the opening 12 and/or 13, while being mixed or having been mixed with ambient air, in principle a fire hazard arises.
- the flame front will spread very rapidly in the direction of the openings 12, 13 of the chamber 10.
- the flame-arresting element 16 of the fire protection device 14 according to the invention which, as is known, cannot be passed by the flame. This accordingly prevents the materials and/or gases present in the chamber from being ignited or even exploded.
- the fire-resisting element 15 is activated so as to close off the gas through-flow opening and thereby deprive the flame of its fuel supply.
- this is achieved in that the material of the fire-resisting element 15 foams or swells up and thereby closes off the passage openings of the grid-shaped structure.
- the fire protection device 14 according to the invention is mounted in the air openings 12 and 13, such that the flame-arresting element 16 faces outwardly and the fire-resisting element 15 is located on the side of the interior of the chamber 10, i.e., on the side of the chemicals.
- the fire protection device 14 according to the invention can also be mounted in reversed position, i.e., with the flame-arresting element 16 on the side of the chemicals.
- the fire protection devices 21, 22, and 23 for the storage space 2 can have the same construction as the above-described fire protection device 14.
- An improved operation is obtained, however, with a fire protection device consisting of at least three layers, with the separate layers alternately having different functions, i.e., a flame-arresting or a fire-resisting function.
- the outer layers of the thus improved fire protection device are of flame-arresting design, with at least one fire-resisting layer provided therebetween.
- the simplest construction that meets this requirement is illustrated in Fig. 5.
- the fire protection device 30 shown schematically there comprises, successively, a first flame-arresting element 31, a first fire-resisting element 32 and a second flame-arresting element 33.
- the thus improved fire protection device 40 comprises at least three layers with, starting from the side where the flame is expected, a first fire-resisting element 41, a flame-arresting element 42, and a second fire-resisting element 43, as schematically shown in Fig. 6.
- the first fire-resisting element 41 facing the flame will react very quickly to the contact with the flame and very quickly close off the gas passage at least partly.
- the task thereof is taken over by the third layer, i.e., the second fire-resisting element 43, which is separated from the flame by the second layer, i.e., the flame-arresting element 42, so that the flame cannot reach the second fire-resisting element 43.
- the fire protection device according to the invention can contain several alternate layers.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Special Wing (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
- Building Environments (AREA)
Abstract
Description
- The invention relates to a fire protection device which is gas-permeable in a non-activated condition, as well as a storage space for highly inflammable and volatile materials, provided with such a fire protection device.
- In the art, there is an increasing need for safe storage of materials that are highly inflammable and/or volatile, and/or materials from which highly inflammable and/or volatile materials can be released. On account of the above-mentioned properties, the handling of these materials must always be done with the necessary care and therefore be left exclusively to experts. In practice, however, it is necessary that a certain stock of the material mentioned be present in certain spaces, even if the materials are not used directly. In that case, to limit the risk of accidents as far as possible, the materials must be stored in a so-called fire-proof chamber or vault. As far as possible, this prevents the materials mentioned from exploding or catching fire when a fire breaks out through whatever cause. Another purpose of such a fire-proof chamber or vault is to prevent the formation of an explosive or inflammable mixture as a result of possible leakage of the materials mentioned from their respective container, for which purpose the chamber or vault mentioned is ventilated to a sufficient degree. This means, however, that the interior of such a chamber or vault is provided with an inflow of outside air, i.e., oxygen. A situation that might occur is the situation where the stored gases release a gas, for instance due to a container being improperly sealed, which gas, mixed with ambient air, is extracted and, through one cause or another, ignited.
- Typically, the flame extension rate, or the propagation rate of the flame front, upon ignition of a gas mixture is higher than the flow rate of the relative gas, in particular when that flow rate is only provided by ventilation, with the result that a flame starting outside the chamber or vault can reach the interior of the chamber or vault against the gas flow and ignite or even explode the materials present there.
- An important task of the chamber or vault mentioned is therefore to prevent the flame of the gas mixture burning outside the chamber from reaching the materials in the chamber.
- In the art, means are already known for preventing such "flashback" of the fire. Such means will hereinafter be referred to as flame-arresting means and are all based on the principle, known with respect to miner's lamps, of a metal wire mesh or grid arranged in the gas stream. A flame front present on the outflow side of such a wire mesh or grid cannot pass the grid; the flame burns on the grid, so to speak.
- Although in practice a flame-arresting grid does indeed have the above-mentioned effect, major problems arise in practice when the supply of the inflammable gas mixture is maintained for some time, for instance in the case of a leaking container. In such a case, the flame-arresting grid may lose its flame-arresting activity. The principal reason for this is that the grid is heated as a result of the flame burning continuously against the grid. Owing to the increasing temperature, the grid may melt and thereby lose its function. In some cases it may even happen that, even before the grid melts, the heated grid ignites the gas mixture on the inflow side of the grid. In the case of prolonged fire, therefore, the known fire protection devices do not have any fire-resisting effect.
- The object of the invention is to provide a fire protection device that combines good flame-arresting activity with good fire-resisting activity, so that the above-mentioned risk is absent, at least reduced.
- To that end, a fire protection device which is gas-permeable in a non-activated condition comprises, according to the invention, the combination, arranged in series, of at least one flame-arresting element, preferably a metal grid, and at least one fire-resisting element, which is preferably designed to automatically block a gas stream therethrough in case of fire.
- Although in principle any gas stream shut-off element is suitable for this purpose, a preference is expressed for elements that react to an increase in temperature. One example of such an element is a grid-shaped construction, for instance in the form of a honeycomb, plates, spirals or the like, of a material that foams or swells upon an increase in temperature and thereby closes off the passages of that grid. An example of such a material is known under the name of Palusol, a registered trade mark of BASF. Another example of such a material is known under the name of Fireblock, a registered trade mark of Dufaylite Development. Thus, it is possible to obtain a very compact device with excellent flame-arresting and fire-resisting properties in almost any situation.
- Although a combination of a flame-arresting grid and a fire valve that automatically reacts thermally, as described hereinabove, already provides an improvement over known flame-arresting means, in practice problems may still arise here. A first problem may be, for instance, that it is not known beforehand on which side of the flow passage the flame will start. It will be clear that in case a fire starts in the chamber, it is equally desired that the fire be prevented from spreading to the outside.
- It may further be desired to increase the quickness of reaction of the fire valve. When the fire valve is located on the side of the flame-arresting grid remote from the flame, the fire valve will not perform its function until, after a certain amount of time has lapsed, the heat of the flame has also heated the grid on the other side thereof. On the other hand, when the fire valve is located on the flame side of the grid, the reaction of the fire valve can be relatively quick owing to the direct action of the flame, but the chances are that the fire valve will be damaged by the flame itself or even melts.
- Preferably, therefore, the device according to the invention consists of at least three layers, with the separate layers alternately having different functions, i.e., a flame-arresting or a fire-resisting function. If a device that is active on two sides is to be provided, for instance because it is not known beforehand on which side a fire may start, it is recommended that the device be provided with at least two flame-arresting layers with at least one fire-resisting layer provided therebetween. The simplest construction that meets this requirement comprises three layers which are, successively, flame-arresting, fire-resisting and flame-arresting.
- If the device is to react very quickly to the presence of a flame by shutting off the gas stream at least partly, it is recommended that the device according to the invention be made so as to comprise at least three layers, with, starting from the side where the flame is expected to begin, a first fire-resisting layer, then a flame-arresting layer, and a second fire-resisting layer. In such a construction, the first fire-resisting layer, facing the flame, will react very quickly, but when this layer is affected by the presence of the flame, its task can be taken over by the third layer, i.e., the second fire-resisting layer, which is separated from the flame by the second layer, i.e., the flame-arresting layer.
- If so desired, the device according to the invention can contain several alternate layers.
- It is also possible to arrange a detector in the device according to the invention, which detector reacts to an increase in temperature to above a predetermined level by shutting off a valve operating mechanically, electrically, electro-mechanically or otherwise, so as to shut off the gas stream completely with 100% certainty.
- Hereinafter, the invention will be further clarified through a discussion of preferred embodiments, with reference to the drawings, in which:
- Fig. 1 is a section of a workshop including a storage space for chemicals according to the invention;
- Fig. 2 is a perspective view of a storage chamber to be arranged as a loose element;
- Fig. 3 is a partial section of the door of the chamber shown in Fig. 2, taken on the line III-III;
- Fig. 4 is a perspective view of a simple embodiment of a fire protection device according to the invention;
- Fig. 5 is a schematic cross-section of a fire protection device according to the invention having flame-arresting activity on two sides; and
- Fig. 6 is a schematic cross-section of a fire protection device according to the invention having fire-resisting activity on two sides.
- Fig. 1 shows a workshop 1 in which a
separate space 2 has been built for storing chemicals (not shown for the sake of clarity). However, the invention also relates to storage spaces which are to be arranged as loose elements, such as a chamber or vault. - The chamber, vault or built-in storage space can be intended for the storage of volatile materials, such as thinner and/or other chemicals. The storage space is ventilated, to which end, in the situation shown in Fig. 1, a
fan 4 arranged on theroof 3 of the workshop 1 is connected via atube 5 with theceiling 6 of thestorage space 2. Thestorage space 2 is arranged adjacent anouter wall 7 of the workshop 1 and communicates via twotubes fan 4 is in operation, fresh air enters thestorage space 2 via thetubes storage space 2 via thetube 5. - According to the invention, the
storage space 2 is provided withfire protection devices air supply channels air extraction channel 5, respectively. - It is noted that in the situation described the interior of the
storage space 2, when the door giving access to it is closed, is not in communication with the interior space of the workshop 1. However, in the case of a storage chamber to be arranged as a separate element, this may well be the case when a separate supply of outside air cannot be realized. Fig. 2 shows a perspective view of such aloose storage chamber 10 with anentrance door 11, with ventilation taking place, not in any forced manner but in a natural manner via twoopenings door 11, respectively. According to the invention, thestorage chamber 10, too, is provided with fire protection devices in theopenings door 11. - The
fire protection devices 14 according to the invention utilized in thechamber 10 comprise a fire-resistingelement 15 and a flame-arrestingelement 16, which are arranged in series with regard to the air stream through the relative opening. Further, on the outside of thedoor 11 anornamental grid 17 of the Louvre type is arranged, which does not have any fire protection function. For the sake of clarity, the essential parts of thefire protection device 14 according to the invention are shown in perspective in Fig. 4. The shape of the fire-resistingelement 15 and the flame-arrestingelement 16 can be rectangular or round, adapted to the shape of the openings in the door or the channels. The thickness of the flame-arrestingelement 16 will generally be a few millimeters; the thickness of the fire-resistingelement 15 will generally be a few centimeters. - The flame-arresting
element 16 can be made of metal gauze or a metal grid. A material that has been found to be particularly suitable and is to be preferred accordingly, is a metal foam, for instance the metal foam known under the name of Recemat (registered trade mark of SEAC International B.V.). - A preferred embodiment of the fire-resisting
element 15, as shown, likewise has a grid-shaped construction, for instance in the form of a honeycomb, plates, sprirals or the like, of a material that foams or swells up in reaction to an increase in temperature, and thereby closes off the passages of the grid. An example of such a material is known under the name of Palusol, a registered trade mark of BASF. A material that has been found to be particularly suitable and is to be preferred accordingly, is known under the name of Fireblock (registered trade mark of Dufaylite Development). - The operation of the
fire protection device 14 according to the invention is as follows. When highly inflammable gases that are present or are being released in thechamber 10 leave the chamber through theopening 12 and/or 13, while being mixed or having been mixed with ambient air, in principle a fire hazard arises. When, by whatever cause, the mixture starts to burn outside thechamber 10, the flame front will spread very rapidly in the direction of theopenings chamber 10. There the flame contacts the flame-arrestingelement 16 of thefire protection device 14 according to the invention, which, as is known, cannot be passed by the flame. This accordingly prevents the materials and/or gases present in the chamber from being ignited or even exploded. - Under the influence of the increase in temperature caused by the flame, the fire-resisting
element 15 is activated so as to close off the gas through-flow opening and thereby deprive the flame of its fuel supply. In the preferred embodiment described, this is achieved in that the material of the fire-resistingelement 15 foams or swells up and thereby closes off the passage openings of the grid-shaped structure. - Thus, by using the above-described preferred materials and preferred construction, a very compact fire protection device is provided, having excellent flame-arresting and fire-resisting properties in practically any situation. As appears from Figs 3 and 4, in the application shown there, the
fire protection device 14 according to the invention is mounted in theair openings element 16 faces outwardly and the fire-resistingelement 15 is located on the side of the interior of thechamber 10, i.e., on the side of the chemicals. Depending on the use and the desired effect, thefire protection device 14 according to the invention can also be mounted in reversed position, i.e., with the flame-arrestingelement 16 on the side of the chemicals. - The
fire protection devices storage space 2 can have the same construction as the above-describedfire protection device 14. An improved operation is obtained, however, with a fire protection device consisting of at least three layers, with the separate layers alternately having different functions, i.e., a flame-arresting or a fire-resisting function. If a device that is active on two sides is to be provided, for instance because it is not known beforehand on which side the fire may start, the outer layers of the thus improved fire protection device are of flame-arresting design, with at least one fire-resisting layer provided therebetween. The simplest construction that meets this requirement is illustrated in Fig. 5. Thefire protection device 30 shown schematically there comprises, successively, a first flame-arrestingelement 31, a first fire-resistingelement 32 and a second flame-arrestingelement 33. - In the case where the element is desired to react very quickly to the presence of a flame by shutting off the gas stream at least partly, the thus improved
fire protection device 40 according to the invention comprises at least three layers with, starting from the side where the flame is expected, a first fire-resistingelement 41, a flame-arrestingelement 42, and a second fire-resistingelement 43, as schematically shown in Fig. 6. With such a construction, the first fire-resistingelement 41 facing the flame will react very quickly to the contact with the flame and very quickly close off the gas passage at least partly. However, when the first fire-resistingelement 41 is affected by the presence of the flame, the task thereof is taken over by the third layer, i.e., the second fire-resistingelement 43, which is separated from the flame by the second layer, i.e., the flame-arrestingelement 42, so that the flame cannot reach the second fire-resistingelement 43. - If so desired, the fire protection device according to the invention can contain several alternate layers.
- It will be clear to those skilled in the art that it is possible to change or modify the embodiment of the device according to the invention shown, without departing from the inventive concept of the invention or the scope of protection. Thus, it is for instance possible to arrange a detector in the device according to the invention, which reacts to an increase in temperature to above a predetermined level by shutting off a valve operating mechanically, electrically, electro-mechanically or otherwise, so as shut off the gas stream completely with 100% certainty.
Claims (10)
- A fire protection device which is gas-permeable in a non-activated condition, characterized by the combination, arranged in series, of at least one flame-arresting element and at least one fire-resisting element.
- A fire protection device according to claim 1, characterized in that the flame-arresting element is made of a metal gauze or metal grid.
- A fire protection device according to claim 1, characterized in that the flame-arresting element is made of a metal foam.
- A fire protection device according to at least one of claims 1-3, characterized in that the fire-resisting element is designed to automatically block a gas stream therethrough in case of fire.
- A fire protection device according to at least one of claims 1-3, characterized in that the fire-resisting element is an element that reacts to an increase in temperature.
- A fire protection device according to claim 5, characterized in that the fire-resisting element is made in the form of a honeycomb, plates, spirals or the like, of a material that foams or swells up in reaction to an increase in temperature and thereby closes off passages of that element.
- A fire protection device according to at least one of the preceding claims, characterized in that the fire protection device consists of at least three layers, with the separate layers alternately having different functions, i.e., a flame-arresting or a fire-resisting function.
- A fire protection device according to claim 7, characterized in that the fire protection device has three layers, which, successively, are flame-arresting, fire-resisting, and flame-arresting.
- A fire protection device according to claim 7, characterized in that the fire protection device has three layers, which, successively, are fire-resisting, flame-arresting and fire-resisting.
- A storage space provided with a fire protection device according to any one of claims 1-9.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL9101599A NL9101599A (en) | 1991-09-23 | 1991-09-23 | FIRE PROTECTION DEVICE, AND STORAGE SPACE FITTED WITH FIRE PROTECTION DEVICE. |
NL9101599 | 1991-09-23 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0534556A1 true EP0534556A1 (en) | 1993-03-31 |
EP0534556B1 EP0534556B1 (en) | 2000-06-28 |
Family
ID=19859730
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19920202921 Expired - Lifetime EP0534556B1 (en) | 1991-09-23 | 1992-09-23 | Fire protection device and storage space provided with a fire protection device |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0534556B1 (en) |
DE (1) | DE69231200T2 (en) |
NL (1) | NL9101599A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996012525A1 (en) * | 1994-10-24 | 1996-05-02 | Stefan Geuken | Shut-off device for ducts and the like |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202007001851U1 (en) * | 2006-11-30 | 2008-04-17 | Liebherr-Transportation Systems Gmbh | closure device |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH464703A (en) * | 1966-09-21 | 1968-10-31 | British Aircraft Corp Ltd | Refractory plate and its use in a refractory container |
NL7018724A (en) * | 1970-01-16 | 1971-07-20 | ||
DE2605720A1 (en) | 1976-02-13 | 1977-08-18 | Dufaylite Dev Ltd | Ventilation duct fire screen - comprises coated strip with walled cellular grid loosely fitted in channelled frame |
EP0090635A2 (en) | 1982-03-30 | 1983-10-05 | Dunlop Limited | Flexible hose incorporating a fire barrier |
-
1991
- 1991-09-23 NL NL9101599A patent/NL9101599A/en not_active Application Discontinuation
-
1992
- 1992-09-23 EP EP19920202921 patent/EP0534556B1/en not_active Expired - Lifetime
- 1992-09-23 DE DE1992631200 patent/DE69231200T2/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH464703A (en) * | 1966-09-21 | 1968-10-31 | British Aircraft Corp Ltd | Refractory plate and its use in a refractory container |
NL7018724A (en) * | 1970-01-16 | 1971-07-20 | ||
DE2605720A1 (en) | 1976-02-13 | 1977-08-18 | Dufaylite Dev Ltd | Ventilation duct fire screen - comprises coated strip with walled cellular grid loosely fitted in channelled frame |
EP0090635A2 (en) | 1982-03-30 | 1983-10-05 | Dunlop Limited | Flexible hose incorporating a fire barrier |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996012525A1 (en) * | 1994-10-24 | 1996-05-02 | Stefan Geuken | Shut-off device for ducts and the like |
Also Published As
Publication number | Publication date |
---|---|
DE69231200T2 (en) | 2000-11-23 |
EP0534556B1 (en) | 2000-06-28 |
NL9101599A (en) | 1993-04-16 |
DE69231200D1 (en) | 2000-08-03 |
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