EP0886009B1 - Security barrier, particularly for level crossing or car park with means for recording or indicating a damage of the barrier bar - Google Patents
Security barrier, particularly for level crossing or car park with means for recording or indicating a damage of the barrier bar Download PDFInfo
- Publication number
- EP0886009B1 EP0886009B1 EP98401440A EP98401440A EP0886009B1 EP 0886009 B1 EP0886009 B1 EP 0886009B1 EP 98401440 A EP98401440 A EP 98401440A EP 98401440 A EP98401440 A EP 98401440A EP 0886009 B1 EP0886009 B1 EP 0886009B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- loop
- conductive
- safety barrier
- bar
- barrier according
- 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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Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F13/00—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions
- E01F13/04—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions movable to allow or prevent passage
- E01F13/06—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions movable to allow or prevent passage by swinging into open position about a vertical or horizontal axis parallel to the road direction, i.e. swinging gates
Definitions
- the present invention relates to a security barrier, in particular a level crossing or parking barrier, comprising at least one heald provided with at least one element conductor of electricity connected to a device allowing to detect a variation or an interruption of the electrical continuity of the conductive element.
- Such barriers are installed in multiple crossing points, especially on rail networks and road, or on parking areas.
- the present invention proposes to remedy this disadvantage and, to do this, the barrier it concerns is characterized in that the conductive element consists by a conductive loop comprising several strands conductors carried by a fibrous support.
- the detection device can therefore transmit to a monitoring station an alert signal as soon as a change or an interruption in the electrical continuity of the loop conductive occurs, which triggers a rapid rescue intervention for repair.
- the loop conductive In the event of an accidental break in the arm, the loop conductive virtually breaks due to its structure particular, which allows the detection device to issue an alert signal without fail.
- the conductive strands are weak unit length, which makes it possible to obtain a conductor of semiconductor type.
- the conductive strands are braided.
- the conductive loop is housed in the thickness of the arm and advantageously, when the heddle consists of a composite material, the conductive loop is then embedded in the interior of said composite material.
- the elongation at rupture of the conductive loop has an elastic limit close to that of the elongation at break of the arm.
- the rupture of the arm and the conductive loop are concomitant, whereas in the general case the loop conductor breaks before the stringer.
- the conductive loop is arranged in parallel to the longitudinal axis of the boom and preferably symmetrically with respect to this axis.
- the conductive loop follows the axis of the boom and that it is arranged on the side and on the other side of this axis, the rupture of the barrier being able occur on either side of the boom.
- the heald when the heald is connected to a barrier base by means of a fixing heel and has a break zone located at a certain distance of the heel, the conductive loop extends from the fixing heel at least up to the break zone.
- the length of the conductive loop is thus chosen in function of that of the beam which comprises by experience at minus a break zone near the fixing heel.
- the device making it possible to detect a variation or an interruption in continuity electric conductive loop is placed inside of the barrier base, and preferably the conductive loop is connected to the device allowing to detect a variation or an interruption in the electrical continuity of the loop by means of a connecting conductor or a conductor flexible connection.
- Figure 1 shows a crossing barrier 1 comprising a base 2 and a rail 3 fixed by a few bolts on a fixing heel 4 connected to the base.
- the boom is made of a composite material, in the thickness of which a conductive loop 5 extends symmetrically with respect to the longitudinal axis of the heddle.
- the conductive loop consists of a conductor section 1 to 2 mm, which consists of a succession of strands non-continuous about 10-20 microns in diameter and preferably stainless steel, these strands being in contact the ones with the others.
- the strands are braided and carried by a fibrous support.
- the resistance of the conductor is between 500 and 3000 Ohms.
- the elongation at break of the conductive loop has a elastic limit equal to that of elongation at break smooth.
- Each end of the conductive loop is connected to the ends of a flexible connecting conductor 6 housed in the fixing heel.
- the flexible connection conductor is connected to each of its other ends to a known device 7 making it possible to detect a variation or an interruption in continuity electric of said loop.
- the loop conductive extends from the heel of attachment to a little beyond the usual break zone of the beam, zone located at a predetermined distance d from the fixing heel.
- the beam is 4.85 m long, the distance d is around 1 m and the conductive loop extends over 1.60 m from the heel of attachment, ie beyond of the break zone, but not over the entire length of the smooth.
- the device according to the invention operates in the manner next, as it also appears figure 2.
- the device for detecting a variation or a interruption in the electrical continuity of the loop conductor detects a variation or an interruption in the electrical continuity and is then able, by means known, to issue an alert signal or to transmit the signal detected.
- a maintenance intervention can then be immediately triggered, to replace the boom.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Geophysics And Detection Of Objects (AREA)
- Road Signs Or Road Markings (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
- Train Traffic Observation, Control, And Security (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Laminated Bodies (AREA)
- Radar Systems Or Details Thereof (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
Description
La présente invention porte sur une barrière de sécurité, notamment une barrière de passage à niveau ou de parking, comportant au moins une lisse pourvue d'au moins un élément conducteur de l'électricité relié à un dispositif permettant de détecter une variation ou une interruption de la continuité électrique de l'élément conducteur.The present invention relates to a security barrier, in particular a level crossing or parking barrier, comprising at least one heald provided with at least one element conductor of electricity connected to a device allowing to detect a variation or an interruption of the electrical continuity of the conductive element.
De telles barrières sont installées en de multiples points de passage, notamment sur les réseaux ferrés et routiers, ou encore sur des aires de stationnement.Such barriers are installed in multiple crossing points, especially on rail networks and road, or on parking areas.
Il arrive fréquemment que ces barrières soient endommagées du fait d'une cassure de la lisse, par exemple en raison d'un accident, d'un acte de vandalisme ou encore d'un brusque coup de vent.Frequently these barriers are damaged due to breakage of the boom, for example due to an accident, an act of vandalism or a sudden gust of wind.
S'il s'agit d'une barrière de passage à niveau, la traversée du point de passage devient très dangereuse, de sorte que de fréquentes rotations d'équipes de maintenance chargées de visiter l'ensemble du parc de barrières, même celles qui ne sont pas endommagées, sont nécessaires.If it is a crossing barrier, the crossing the crossing point becomes very dangerous, so that frequent rotations of maintenance teams responsible for visiting the entire barrier park, even those which are not damaged, are necessary.
S'il s'agit d'une barrière de parking, les redevances de stationnement ne peuvent plus être perçues.If it is a parking barrier, the fees for parking can no longer be perceived.
Lors de la cassure accidentelle de la lisse d'une barrière ayant la structure indiquée ci-dessus, il arrive fréquemment que l'élément conducteur ne soit pas rompu et que le dispositif de détection ne puisse exercer convenablement sa fonction, ce qui peut entraíner des risques gravissimes pour les usagers ou des pertes financières importantes.During the accidental breakage of the beam of a barrier having the structure indicated above, it happens frequently that the conductive element is not broken and that the detection device cannot exercise properly its function, which can lead to very serious risks for users or significant financial losses.
La présente invention se propose de remédier à cet inconvénient et, pour ce faire, la barrière qu'elle concerne se caractérise en ce que l'élément conducteur est constitué par une boucle conductrice comportant plusieurs brins conducteurs portés par un support fibreux.The present invention proposes to remedy this disadvantage and, to do this, the barrier it concerns is characterized in that the conductive element consists by a conductive loop comprising several strands conductors carried by a fibrous support.
Le dispositif de détection peut donc transmettre à un poste de surveillance un signal d'alerte dès qu'un changement ou une interruption de la continuité électrique de la boucle conductrice survient, ce qui permet de déclencher une intervention rapide des secours en vue d'une réparation.The detection device can therefore transmit to a monitoring station an alert signal as soon as a change or an interruption in the electrical continuity of the loop conductive occurs, which triggers a rapid rescue intervention for repair.
Lors d'une rupture accidentelle de la lisse, la boucle conductrice se rompt franchement en raison de sa structure particulière, ce qui permet au dispositif de détection d'émettre à coup sûr un signal d'alerte.In the event of an accidental break in the arm, the loop conductive frankly breaks due to its structure particular, which allows the detection device to issue an alert signal without fail.
Les tests effectués lors de la mise au point de l'invention ont montré que la boucle conductrice avait une disposition à la rupture bien supérieure à celle d'un conducteur constitué d'un câble ou d'un fil continu qui a tendance à s'allonger avant de se rompre.The tests carried out during the development of the invention showed that the conductive loop had a disposition to break much higher than that of a conductor consisting of a continuous cable or wire which has tendency to lie down before breaking.
De préférence, les brins conducteurs sont de faible longueur unitaire, ce qui permet d'obtenir un conducteur de type semi-conductif.Preferably, the conductive strands are weak unit length, which makes it possible to obtain a conductor of semiconductor type.
Selon une variante, les brins conducteurs sont tressés.According to a variant, the conductive strands are braided.
Selon un mode de réalisation préféré de l'invention, la boucle conductrice est logée dans l'épaisseur de la lisse et avantageusement, lorsque la lisse est constituée d'un matériau composite, la boucle conductrice est alors noyée à l'intérieur dudit matériau composite.According to a preferred embodiment of the invention, the conductive loop is housed in the thickness of the arm and advantageously, when the heddle consists of a composite material, the conductive loop is then embedded in the interior of said composite material.
Il est possible de fabriquer en usine une lisse déjà équipée d'une boucle conductrice, qui se trouve protégée contre les intempéries ou les actes de vandalisme.It is possible to manufacture a beam already in the factory equipped with a conductive loop, which is protected against bad weather or acts of vandalism.
Selon un perfectionnement de l'invention, l'allongement à la rupture de la boucle conductrice a une limite élastique voisine de celle de l'allongement à la rupture de la lisse. Ainsi, la rupture de la lisse et de la boucle conductrice sont concomitantes, alors que dans le cas général la boucle conductrice se rompt avant la lisse.According to an improvement of the invention, the elongation at rupture of the conductive loop has an elastic limit close to that of the elongation at break of the arm. Thus, the rupture of the arm and the conductive loop are concomitant, whereas in the general case the loop conductor breaks before the stringer.
Selon un autre mode de réalisation préféré de l'invention, la boucle conductrice est disposée parallèlement à l'axe longitudinal de la lisse et de préférence symétriquement par rapport cet axe.According to another preferred embodiment of the invention, the conductive loop is arranged in parallel to the longitudinal axis of the boom and preferably symmetrically with respect to this axis.
Il est en effet avantageux que la boucle conductrice suive l'axe de la lisse et qu'elle soit disposée de part et d'autre de cet axe, la rupture de la barrière pouvant survenir d'un côté ou de l'autre de la lisse. It is indeed advantageous that the conductive loop follows the axis of the boom and that it is arranged on the side and on the other side of this axis, the rupture of the barrier being able occur on either side of the boom.
Selon un perfectionnement, lorsque la lisse est reliée à un socle de barrière au moyen d'un talon de fixation et présente une zone de cassure située à une certaine distance du talon de fixation, la boucle conductrice s'étend depuis le talon de fixation au moins jusqu'à la zone de cassure.According to an improvement, when the heald is connected to a barrier base by means of a fixing heel and has a break zone located at a certain distance of the heel, the conductive loop extends from the fixing heel at least up to the break zone.
La longueur de la boucle conductrice est ainsi choisie en fonction de celle de la lisse qui comporte par expérience au moins une zone de cassure à proximité du talon de fixation.The length of the conductive loop is thus chosen in function of that of the beam which comprises by experience at minus a break zone near the fixing heel.
Selon une variante, le dispositif permettant de détecter une variation ou une interruption dans la continuité électrique de la boucle conductrice est placé à l'intérieur du socle de barrière, et de préférence, la boucle conductrice est reliée au dispositif permettant de détecter une variation ou une interruption dans la continuité électrique de la boucle au moyen d'un conducteur de liaison ou d'un conducteur de liaison souple.According to a variant, the device making it possible to detect a variation or an interruption in continuity electric conductive loop is placed inside of the barrier base, and preferably the conductive loop is connected to the device allowing to detect a variation or an interruption in the electrical continuity of the loop by means of a connecting conductor or a conductor flexible connection.
Il est ainsi possible de pré-équiper la barrière en série, lors de la fabrication, pour simplifier les opérations de montage et pour abriter le dispositif permettant de détecter une variation ou une interruption dans la continuité électrique de ladite boucle.It is thus possible to pre-equip the barrier with series, during manufacturing, to simplify operations mounting and to house the device for detect a variation or an interruption in continuity electric of said loop.
Deux modes de réalisation de la présente invention vont maintenant être décrits à titre d'exemples non limitatifs en référence aux dessins, dans lesquels :
- la figure 1 représente une vue en perspective d'une barrière pour une premier mode de réalisation ; et
- la figure 2 représente une vue en perspective de détail d'une barrière après rupture, pour un second mode de réalisation.
- Figure 1 shows a perspective view of a barrier for a first embodiment; and
- FIG. 2 represents a perspective view in detail of a barrier after rupture, for a second embodiment.
La figure 1 représente une barrière de passage à niveau 1
comportant un socle 2 et une lisse 3 fixée par quelques
boulons sur un talon de fixation 4 relié au socle.Figure 1 shows a crossing barrier 1
comprising a
Des moyens connus logés à l'intérieur du socle impriment à la lisse, par l'intermédiaire du talon de fixation, un mouvement oscillant, soit pour lever la lisse puis la maintenir en position levée, soit pour abaisser la lisse et la maintenir en position abaissée. Known means housed inside the base print to the heald, via the fixing heel, a oscillating movement, either to raise the beam then the hold in the raised position, either to lower the boom and keep it in the lowered position.
La lisse est constituée d'un matériau composite, dans
l'épaisseur duquel une boucle conductrice 5 s'étend
symétriquement par rapport à l'axe longitudinal de la lisse.The boom is made of a composite material, in
the thickness of which a
La boucle conductrice est constituée d'un conducteur de section 1 à 2 mm, qui se compose d'une succession de brins non continus d'environ 10-20 microns de diamètre et de préférence en acier inoxydable, ces brins étant en contact les uns avec les autres. Dans le mode de réalisation présenté ici, les brins sont tressés et portés par un support fibreux.The conductive loop consists of a conductor section 1 to 2 mm, which consists of a succession of strands non-continuous about 10-20 microns in diameter and preferably stainless steel, these strands being in contact the ones with the others. In the embodiment presented here, the strands are braided and carried by a fibrous support.
A titre d'information, on précisera que la résistance du conducteur est comprise entre 500 et 3 000 Ohms.For information, it should be noted that the resistance of the conductor is between 500 and 3000 Ohms.
L'allongement à la rupture de la boucle conductrice a une limite élastique égale à celle de l'allongement à la rupture de la lisse.The elongation at break of the conductive loop has a elastic limit equal to that of elongation at break smooth.
Chaque extrémité de la boucle conductrice est reliée aux extrémités d'un conducteur de liaison souple 6 logé dans le talon de fixation.Each end of the conductive loop is connected to the ends of a flexible connecting conductor 6 housed in the fixing heel.
Le conducteur de liaison souple est relié à chacune de ses autres extrémités à un dispositif 7 connu permettant de détecter une variation ou une interruption dans la continuité électrique de ladite boucle.The flexible connection conductor is connected to each of its other ends to a known device 7 making it possible to detect a variation or an interruption in continuity electric of said loop.
Comme le montre également la figure 2, qui illustre un second mode de réalisation de l'invention, la boucle conductrice s'étend depuis le talon de fixation jusqu'un peu au-delà de la zone de cassure habituelle de la lisse, zone située à une distance prédéterminée d du talon de fixation.As also shown in Figure 2, which illustrates a second embodiment of the invention, the loop conductive extends from the heel of attachment to a little beyond the usual break zone of the beam, zone located at a predetermined distance d from the fixing heel.
Dans cet exemple, la lisse a une longueur de 4,85 m, la distance d est de l'ordre de 1 m et la boucle conductrice s'étend sur 1,60 m depuis le talon de fixation, soit au delà de la zone de cassure, mais pas sur toute la longueur de la lisse.In this example, the beam is 4.85 m long, the distance d is around 1 m and the conductive loop extends over 1.60 m from the heel of attachment, ie beyond of the break zone, but not over the entire length of the smooth.
Le dispositif selon l'invention fonctionne de la manière suivante, comme il apparaít aussi figure 2.The device according to the invention operates in the manner next, as it also appears figure 2.
En régime normal, c'est à dire lorsque la lisse n'est pas cassée, la boucle conductrice est intacte et le dispositif permettant de détecter une variation ou une interruption dans la continuité électrique de la boucle ne détecte ni variation significative ni interruption dans la continuité électrique.Under normal conditions, i.e. when the boom is not broken, the conductive loop is intact and the device to detect a variation or an interruption in the electrical continuity of the loop does not detect or vary no significant interruption in electrical continuity.
En revanche, lorsque la lisse se casse, les brins métalliques de la boucle conductrice s'écartent les uns des autres dans la zone de cassure, le contact électrique disparaít.However, when the stringer breaks, the strands of the conductive loop deviate from each other others in the break zone, electrical contact disappears.
Le dispositif permettant de détecter une variation ou une interruption dans la continuité électrique de la boucle conductrice détecte une variation ou une interruption dans la continuité électrique et est alors à même, par des moyens connus, d'émettre un signal d'alerte ou de transmettre le signal détecté.The device for detecting a variation or a interruption in the electrical continuity of the loop conductor detects a variation or an interruption in the electrical continuity and is then able, by means known, to issue an alert signal or to transmit the signal detected.
Une intervention de maintenance peut alors être immédiatement déclenchée, pour remplacer la lisse.A maintenance intervention can then be immediately triggered, to replace the boom.
D'autres modes de réalisation de la barrière de sécurité peuvent être mis en oeuvre sans sortir du cadre de la présente invention comme définie dans les revendications.Other embodiments of the security barrier can be implemented without departing from the scope of the present invention as defined in the claims.
Claims (11)
- Safety barrier (1), in particular for a level crossing or a car park, comprising at least one bar (3) provided with at least one electrically conductive element connected to a device (7) for detecting a variation in or an interruption of the electrical continuity of the conductive element, characterized in that the conductive element is constituted by a conductive loop (5) comprising several conductive strands borne by a fibrous support.
- Safety barrier according to claim 1, characterized in that the conductive strands are of small unit length.
- Safety barrier according to claim 1 or 2, characterized in that the conductive strands are braided.
- Safety barrier according to any one of the preceding claims, characterized in that the conductive loop is housed in the thickness of the bar.
- Safety barrier according to any one of the preceding claims, characterized in that, when the bar is constituted by a composite material, the conductive loop is embedded inside said composite material.
- Safety barrier according to any one of the preceding claims, characterized in that the elongation at rupture of the conductive loop has an elastic limit close to that of the elongation at rupture of the bar.
- Safety barrier according to any one of the preceding claims, characterized in that the conductive loop is disposed parallel to the longitudinal axis of the bar.
- Safety barrier according to any one of the preceding claims, characterized in that the conductive loop is disposed symmetrically in relation to the longitudinal axis of the bar.
- Safety barrier according to any one of the preceding claims, characterized in that, when the bar is connected to a barrier base (2) by means of a fixing heel (4) and has a failure area located at a certain distance (d) from the fixing heel, the conductive loop extends from the fixing heel at least up to the failure area.
- Safety barrier according to claim 9, characterized in that the device for detecting the variation in, or the interruption of, the electrical continuity of the loop is placed inside the barrier base.
- Safety barrier according to claim 10, characterized in that the conductive loop is connected to the device permitting detection of the variation in, or the interruption, of the electrical continuity of the loop by means of a connecting lead (6).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9707499A FR2764616B1 (en) | 1997-06-17 | 1997-06-17 | SAFETY BARRIER, IN PARTICULAR LEVEL CROSSING OR PARKING BARRIER, COMPRISING MEANS FOR IDENTIFYING OR REPORTING DETERIORATION OF THE RAIL |
| FR9707499 | 1997-06-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0886009A1 EP0886009A1 (en) | 1998-12-23 |
| EP0886009B1 true EP0886009B1 (en) | 2003-08-27 |
Family
ID=9508065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP98401440A Expired - Lifetime EP0886009B1 (en) | 1997-06-17 | 1998-06-12 | Security barrier, particularly for level crossing or car park with means for recording or indicating a damage of the barrier bar |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0886009B1 (en) |
| AT (1) | ATE248256T1 (en) |
| DE (1) | DE69817462T2 (en) |
| FR (1) | FR2764616B1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2863279B1 (en) | 2003-12-03 | 2006-01-20 | Bca Barrieres & Controle Dacces | SAFETY LEVERAGE BARRIER |
| FR2883010B1 (en) * | 2005-03-14 | 2010-08-20 | Bca Barrieres & Controle D Acc | IMPROVED SAFETY BARRIER |
| FR3095455B1 (en) * | 2019-04-29 | 2021-04-02 | Alain Antoniazzi | New gantry |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE7439834U (en) * | 1975-07-10 | Hagenburg Gmbh | Railway barrier made of glass fiber reinforced plastic | |
| AT200614B (en) * | 1956-08-22 | 1958-11-25 | Suedbahn Werke Ag | Electrical monitoring device |
| DE1136364B (en) * | 1959-01-14 | 1962-09-13 | Siemens Ag | Device for monitoring barrier structures |
| DE1806150U (en) * | 1959-07-14 | 1960-02-18 | Siemens Ag | MONITORING DEVICE TO INDICATE BREAKING OR BENDING BARRIER TREE. |
| DE2306985A1 (en) * | 1973-02-13 | 1974-08-22 | Graf Hagenburg Gmbh | One-piece GRP tubes with smooth surface - a coarse-fibre laminate and a fine-fibre laminate are hand-laid on a cylinder and the outer layer is tightened |
| DE2456572C2 (en) * | 1974-11-29 | 1984-05-24 | KTG Kunststofftechnik GmbH, 8192 Geretsried | Process for the production of pipes from glass fiber reinforced plastic |
| DE4411867A1 (en) * | 1994-04-08 | 1995-10-12 | Magnetic Elektromotoren Gmbh | Traffic barrier with motor-driven opening and shutting action |
-
1997
- 1997-06-17 FR FR9707499A patent/FR2764616B1/en not_active Expired - Lifetime
-
1998
- 1998-06-12 DE DE69817462T patent/DE69817462T2/en not_active Expired - Lifetime
- 1998-06-12 AT AT98401440T patent/ATE248256T1/en not_active IP Right Cessation
- 1998-06-12 EP EP98401440A patent/EP0886009B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE69817462T2 (en) | 2004-07-08 |
| ATE248256T1 (en) | 2003-09-15 |
| DE69817462D1 (en) | 2003-10-02 |
| FR2764616B1 (en) | 1999-08-27 |
| FR2764616A1 (en) | 1998-12-18 |
| EP0886009A1 (en) | 1998-12-23 |
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