EP0893851B1 - Electric contact with elastic return - Google Patents
Electric contact with elastic return Download PDFInfo
- Publication number
- EP0893851B1 EP0893851B1 EP98401593A EP98401593A EP0893851B1 EP 0893851 B1 EP0893851 B1 EP 0893851B1 EP 98401593 A EP98401593 A EP 98401593A EP 98401593 A EP98401593 A EP 98401593A EP 0893851 B1 EP0893851 B1 EP 0893851B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cable
- spring
- fixed
- spring strip
- electrical contact
- 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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Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
- H01R13/22—Contacts for co-operating by abutting
- H01R13/24—Contacts for co-operating by abutting resilient; resiliently-mounted
- H01R13/2407—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means
- H01R13/2421—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means using coil springs
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
- H01R13/15—Pins, blades or sockets having separate spring member for producing or increasing contact pressure
Definitions
- the invention relates to an elastic return electrical contact intended to be fitted at the end of a cable.
- the invention proposes a contact of the aforementioned type but which is particularly remarkable in that an area of the cable, called mooring, is fixed to said housing of the device, in the vicinity of the fixing end of the blade and in that the cable has a hook shape between its mooring area and its end provided with the contact head delimiting a free space in its concave curved part, while the contact head has a surface of contact arranged perpendicular to the longitudinal axis of the end of the cable and elastic mobility substantially coaxial with said axis, the blade being arranged in said free space being further biased by a spring fixed to the housing of the device.
- the work of the constituent strands of the cable is advantageous due to the positioning of the contact head whose mobility is longitudinal with respect to the end of the cable and no longer perpendicular as in the prior art cited.
- the spring which biases the blade is a helical spring. mounted coaxially on a guide rod which passes through said blade and which is fixed to the housing of the device, the spring being wedged between the blade and an end stop of the rod which preferably crosses the blade through an oblong hole made in the vicinity from the end of the blade secured to the contact head.
- the contact head comprises a sleeve which covers the end of the cable.
- the blade is fixed to the contact head by means of an end fork-shaped intended to be housed in one or more grooves provided this effect in the contact head by partially surrounding it.
- the cable is for example fixed in the housing of the device by means of screws which are fixed in said housing and which pass through said cable.
- the blade present in a median zone in the vicinity of its fixing end, a central recess and has a broken line profile.
- such a contact is for example intended to equip a mobile socket of a connection system and more particularly still the socket of a charging connector.
- Each contact is designed to be fitted at the 1 'end of a cable 1 ( Figure 1) and has a contact head 2 in the form here of a sleeve 2a which covers the end of the cable and which includes a patch 2c, for example in silver, intended to ensure electrical contact with an antagonistic contact of another device with which the plug is intended to mate.
- the pad 2c which constitutes the contact surface is arranged perpendicularly to the longitudinal axis of the end 1 'of the cable 1 and, as the Figure 1, we understand that the head 2 has a mobility substantially coaxial with said axis, mobility which is also elastic for the reasons which will be mentioned below.
- the contact head is fixed to a leaf spring 3, as shown in the figures 1 to 3, Figure 3 showing more particularly the blade alone while the Figure 2 shows the blade 3 and another blade 3 'of the same type for another contact.
- the latter has a fork-shaped end 3a intended to be housed in a groove 2b of the contact head 2 by partially surrounding it.
- the fork 3a of the blade 3 has two elastic branches terminated by retaining lugs which are forcibly passed, the the ends of the two branches then being tightened by a tool to ensure a perfect attachment of the contact head 2.
- the blade 3 in addition to its forked end 3a, has a general shape in broken line with a so-called fixing 3d end, opposite the fork 3a and a intermediate zone in two parts respectively 3b on the side of the fork 3a and 3c on the side of the 3d fixing end, the parts 3a, 3b, 3c and 3d being connected between them by zigzagging.
- the intermediate part 3b is provided with an oblong hole 4 whose length is directed lengthwise of the blade while part 3c has a recess 5 which will be discussed below.
- the blade 3 is fixed by its 3d end in the housing 6 of the socket shown in Figures 1 and 2, here by means of a screw and a nut.
- the cable 1 is moored to the housing 6 of the apparatus here by means of screws 7a, 7b which pass through the cable 1 in a zone 1 " mooring while allowing it to be clamped between two elements 8a, 8b while that said cable 1 has the shape of a hook 1 "'between its mooring area 1" and its end 1 'provided with the contact head 2.
- the blade 3 is arranged in the space delimited by part 1 '' 'concave curve of cable 1.
- This arrangement makes it possible to obtain the advantages specified above concerning in particular the small footprint, the flexibility of the cable, but also a perfect positioning static (position of the head relative to the blade attachment) but also dynamic thanks to the guidance provided inter alia by the rod 9 in the oblong hole 4.
- the recess 5 provides a certain freedom in torsion. which can in particular allow compensation for flattening tolerances of the contact head 2 on its antagonistic contact.
Landscapes
- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Multi-Conductor Connections (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
Description
L'invention concerne un contact électrique à rappel élastique destiné à être aménagé à l'extrémité d'un câble.The invention relates to an elastic return electrical contact intended to be fitted at the end of a cable.
Les contacts électriques élastiques à pression en bout sont bien connus.Elastic electrical contacts with end pressure are well known.
Ils comportent une tête de contact qui vient en prise élastique avec un contact antagoniste sous l'action d'un ressort hélicoïdal qui entoure un conducteur déformable telle une tresse, connecté à un câble, éventuellement par l'intermédiaire d'une borne ou cosse de raccordement.They have a contact head which comes into elastic engagement with a contact antagonist under the action of a helical spring which surrounds a deformable conductor such as a braid, connected to a cable, possibly via a terminal or connection terminal.
Outre les problèmes inhérents aux déformations répétées du conducteur déformable, ces contacts connus nécessitent un espace de logement relativement important entre l'extrémité du câble et la tête de contact.In addition to the problems inherent in the repeated deformations of the deformable conductor, these known contacts require a relatively large accommodation space between the end of the cable and the contact head.
Ceci peut devenir un inconvénient lorsque, par exemple, selon l'appareil à équiper, le câble n'est pas disposé longitudinalement par rapport à la tête de contact mais selon un certain angle.This can become a disadvantage when, for example, depending on the device to equip, the cable is not placed longitudinally with respect to the contact head but from a certain angle.
Pour notamment résoudre le problème d'encombrement précité, il est connu selon le document EP-A-0 643 444 au nom du même titulaire de réaliser un contact électrique à rappel élastique comportant une tête de contact qui est fixée à l'extrémité d'un câble électrique ou similaire et qui est assujettie à l'extrémité d'une lame élastique dont l'autre extrémité, dite de fixation, est fixée dans le boítier d'un appareil à équiper.To solve the aforementioned congestion problem in particular, it is known according to document EP-A-0 643 444 in the name of the same holder to make a contact electric spring return comprising a contact head which is fixed at the end an electric cable or the like and which is secured to the end of an elastic blade the other end of which, known as the fixing end, is fixed in the housing of an appliance to be equipped.
Toutefois en vue notamment d'assurer une fixation de contact plus rigoureuse, un meilleur guidage et un bon positionnement de la tête de contact, un meilleur amarrage du câble et surtout une structure dégageant une plus grande longueur de câble libre et donc souple sous un volume restreint, l'invention propose un contact du type précité mais qui est notamment remarquable en ce qu'une zone du câble, dite d'amarrage, est fixée audit boítier de l'appareil, au voisinage de l'extrémité de fixation de la lame et en ce que le câble présente une forme de crochet entre sa zone d'amarrage et son extrémité munie de la tête de contact en délimitant un espace libre dans sa partie courbe concave, tandis que la tête de contact présente une surface de contact disposée perpendiculairement à l'axe longitudinal de l'extrémité du câble et une mobilité élastique sensiblement coaxiale audit axe, la lame étant aménagée dans ledit espace libre en étant en outre sollicitée par un ressort fixé au boítier de l'appareil.However with a view in particular to ensuring a more rigorous contact fixing, better guidance and good positioning of the contact head, better mooring of the cable and above all a structure releasing a greater length of free and therefore flexible cable under a limited volume, the invention proposes a contact of the aforementioned type but which is particularly remarkable in that an area of the cable, called mooring, is fixed to said housing of the device, in the vicinity of the fixing end of the blade and in that the cable has a hook shape between its mooring area and its end provided with the contact head delimiting a free space in its concave curved part, while the contact head has a surface of contact arranged perpendicular to the longitudinal axis of the end of the cable and elastic mobility substantially coaxial with said axis, the blade being arranged in said free space being further biased by a spring fixed to the housing of the device.
Ainsi le travail des brins constitutifs du câble est avantageux du fait du positionnement de la tête de contact dont la mobilité est longitudinale par rapport à l'extrémité du câble et non plus perpendiculaire comme dans l'antériorité citée.Thus the work of the constituent strands of the cable is advantageous due to the positioning of the contact head whose mobility is longitudinal with respect to the end of the cable and no longer perpendicular as in the prior art cited.
En outre, le ressort sollicite désormais la lame et non plus directement la tête de contact. In addition, the spring now stresses the blade and no longer directly the head of contact.
Avantageusement le ressort qui sollicite la lame est un ressort hélicoïdal monté coaxialement sur une tige de guidage qui traverse ladite lame et qui est fixée au boítier de l'appareil, le ressort étant calé entre la lame et une butée d'extrémité de la tige qui de préférence traverse la lame au travers d'un trou oblong ménagé au voisinage de l'extrémité de la lame assujettie à la tête de contact.Advantageously, the spring which biases the blade is a helical spring. mounted coaxially on a guide rod which passes through said blade and which is fixed to the housing of the device, the spring being wedged between the blade and an end stop of the rod which preferably crosses the blade through an oblong hole made in the vicinity from the end of the blade secured to the contact head.
Selon un mode de réalisation la tête de contact comporte un manchon qui vient recouvrir l'extrémité du câble.According to one embodiment, the contact head comprises a sleeve which covers the end of the cable.
De préférence la lame est fixée à la tête de contact au moyen d'une extrémité en forme de fourche destinée à venir se loger dans une ou des gorges ménagées à cet effet dans la tête de contact en l'entourant partiellement.Preferably the blade is fixed to the contact head by means of an end fork-shaped intended to be housed in one or more grooves provided this effect in the contact head by partially surrounding it.
Le câble est par exemple fixé dans le boítier de l'appareil au moyen de vis qui sont fixées dans ledit boítier et qui traversent ledit câble.The cable is for example fixed in the housing of the device by means of screws which are fixed in said housing and which pass through said cable.
Avantageusement la lame présente dans une zone médiane au voisinage de son extrémité de fixation, un évidement central et présente un profil en ligne brisée.Advantageously, the blade present in a median zone in the vicinity of its fixing end, a central recess and has a broken line profile.
Selon une application un tel contact est par exemple destiné à équiper une prise mobile d'un système de connexion et plus particulièrement encore la prise d'un connecteur de charge.According to one application, such a contact is for example intended to equip a mobile socket of a connection system and more particularly still the socket of a charging connector.
L'invention sera bien comprise et d'autres particularités apparaítront à la lecture de la description qui va suivre et qui se réfère aux dessins annexés dans lesquels:
- la figure 1 montre en coupe selon I-I de la figure 2 une prise mobile de connexion équipée d'au moins un contact selon l'invention,
- la figure 2 est une vue partielle en élévation du boítier ouvert de la prise de la figure 1, les câbles ayant été retirés pour une meilleure compréhension,
- la figure 3 est une vue en perspective d'une lame constitutive d'un contact selon l'invention.
- FIG. 1 shows in section on II of FIG. 2 a mobile connection socket equipped with at least one contact according to the invention,
- FIG. 2 is a partial elevation view of the open housing of the socket in FIG. 1, the cables having been removed for a better understanding,
- Figure 3 is a perspective view of a blade constituting a contact according to the invention.
Dans l'exemple représenté sur les dessins, il s'agit d'une prise mobile de connexion comportant ici plusieurs contacts selon l'invention destinés à constituer par exemple les contacts de puissance.In the example shown in the drawings, it is a mobile outlet for connection here comprising several contacts according to the invention intended to constitute by example the power contacts.
Chaque contact est prévu pour être aménagé à l'extrémité 1' d'un câble 1
(figure 1) et comporte une tête de contact 2 sous la forme ici d'un manchon 2a qui
vient recouvrir l'extrémité du câble et qui comporte une pastille 2c, par exemple en
argent, destinée à assurer le contact électrique avec un contact antagoniste d'un autre
appareil avec lequel la prise est destinée à s'accoupler.Each contact is designed to be fitted at the 1 'end of a cable 1
(Figure 1) and has a
La pastille 2c qui constitue la surface de contact est disposée perpendiculairement
à l'axe longitudinal de l'extrémité 1' du câble 1 et, comme le montre bien la
figure 1, on comprend que la tête 2 présente une mobilité sensiblement coaxiale audit
axe, mobilité qui est en outre élastique pour les raisons qui seront évoquées ci-après.The
La tête de contact est fixée à une lame ressort 3, comme le montrent les figures
1 à 3, la figure 3 représentant plus particulièrement la lame seule tandis que la
figure 2 montre la lame 3 et une autre lame 3' du même type pour un autre contact.The contact head is fixed to a
Pour assurer la fixation de la tête 2 et de la lame 3, cette dernière présente
une extrémité en forme de fourche 3a destinée à venir se loger dans une gorge 2b de
la tête de contact 2 en l'entourant partiellement.To secure the
Comme le montre bien la figure 3, la fourche 3a de la lame 3 présente deux
branches élastiques terminées par des ergots de retenue qui sont passés à force, les
extrémités des deux branches étant ensuite resserrées par un outil afin d'assurer une
parfaite fixation de la tête de contact 2.As shown in Figure 3, the
La lame 3, outre son extrémité 3a fourchue, présente une forme générale en
ligne brisée avec une extrémité 3d dite de fixation, opposée à la fourche 3a et une
zone intermédiaire en deux parties respectivement 3b du côté de la fourche 3a et 3c
du côté de l'extrémité de fixation 3d, les parties 3a, 3b, 3c et 3d étant reliées entre
elles en formant des zigzag.The
Comme le montrent bien les figures et plus particulièrement la figure 3, la
partie intermédiaire 3b est pourvue d'un trou oblong 4 dont la longueur est dirigée
dans le sens de la longueur de la lame tandis que la partie 3c présente un évidement
5 dont il sera question ci-après.As the figures clearly show and more particularly FIG. 3, the
La lame 3 est fixée par son extrémité 3d dans le boítier 6 de la prise représentée
sur les figures 1 et 2, au moyen ici d'une vis et d'un écrou.The
Comme le montre bien en outre la figure 1, le câble 1 est amarré au boítier 6
de l'appareil au moyen ici de vis 7a, 7b qui traversent le câble 1 dans une zone 1"
d'amarrage tout en permettant d'enserrer celui-ci entre deux éléments 8a, 8b tandis
que ledit câble 1 présente la forme d'un crochet 1"' entre sa zone d'amarrage 1" et son
extrémité 1' munie de la tête de contact 2.As well shown in addition in Figure 1, the
Comme on peut encore le voir sur la figure 1, la lame 3 est aménagée dans
l'espace délimité par la partie 1''' courbe concave du câble 1. As can still be seen in Figure 1, the
On constate aussi que le trou oblong 4 de la lame 3 est traversé par une tige
9 fixée au boítier 6 par une vis 10 tandis qu'un ressort hélicoïdal 11 est calé entre ladite
lame 3 et une rondelle de butée 12 disposée à l'extrémité de la tige 9.We also note that the
De la sorte on comprend que le ressort 11 par l'intermédiaire de la lame 3
sollicite la tête de contact 2 vers sa position de connexion.In this way it is understood that the
Cette disposition permet d'obtenir les avantages précisés ci-avant concernant
notamment le faible encombrement, la souplesse du câble, mais aussi un parfait positionnement
statique (position de la tête par rapport à la fixation de la lame) mais aussi
dynamique grâce au guidage assuré entre autre par la tige 9 dans le trou oblong 4.This arrangement makes it possible to obtain the advantages specified above concerning
in particular the small footprint, the flexibility of the cable, but also a perfect positioning
static (position of the head relative to the blade attachment) but also
dynamic thanks to the guidance provided inter alia by the rod 9 in the
En outre on peut noter que l'évidement 5 procure une certaine liberté en torsion
qui peut notamment permettre une compensation des tolérances de mise à plat
de la tête de contact 2 sur son contact antagoniste.In addition, it can be noted that the
Claims (9)
- Spring-loaded electrical contact comprising a contact head (2) which is fixed to the end (1') of an electrical cable (1) or the like and which is fastened to the end (3a) of a spring strip (3) the other end (3d) of which referred to as the fixing end, is fixed in the housing (6) of an appliance to be equipped, characterised in that a zone (1") of the cable (1) referred to as the anchoring zone, is fixed to said housing (6) of the appliance in the vicinity of the fixing end (3d) of the spring strip and in that the cable (1) exhibits a hook shape (1''') between its anchoring zone (1") and its end (1') provided with the contact head (2), delimiting a free space in its concave curved portion, while the contact head (2) exhibits a contact surface (2c) disposed perpendicularly to the longitudinal axis of the end (1') of the cable and is mobile elastically substantially coaxially with said axis, the spring strip (3) being arranged in said free space and additionally being subject to the action of a spring (11) fixed to the housing (6) of the appliance.
- Electrical contact according to claim 1, characterised in that the spring which acts on the spring strip (3) is a helical spring (11) mounted coaxially on a guide rod (9) which passes through said spring strip and which is fixed to the housing of the appliance, the spring (11) being wedged between the spring strip (3) and an end stop (12) of the rod (9).
- Electrical contact according to claim 2, characterised in that the guide rod (9) passes through the spring strip (3) through an oblong hole (4) formed in the vicinity of the end (3a) of the spring strip fastened to the contact head (2).
- Electrical contact according to one of claims 1 to 3, characterised in that the contact head (2) comprises a sleeve (2a) which covers the end (1') of the cable.
- Electrical contact according to one of claims 1 to 4, characterised in that the spring strip (3) is fixed to the contact head (2) by means of an end (3a) in the shape of a fork designed to be lodged in one or more grooves (2b) formed for that purpose in the contact head (2), partially surrounding it.
- Electrical contact according to one of claims 1 to 5, characterised in that the cable (1) is fixed in the housing (6) of the appliance by means of screws (7a, 7b) which are fixed in said housing and which pass through said cable.
- Electrical contact according to one of claims 1 to 6, characterised in that the spring strip (3) exhibits a central cut-out (5) in a median zone (3c) in the vicinity of its fixing end (3d).
- Electrical contact according to one of claims 1 to 7, characterised in that the spring strip (3) exhibits a profile in the form of a broken line.
- Electrical contact according to one of claims 1 to 8, characterised in that it is designed to equip a mobile socket of a connecting system.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9709274 | 1997-07-22 | ||
| FR9709274A FR2766629B1 (en) | 1997-07-22 | 1997-07-22 | ELECTRICAL CONTACT WITH ELASTIC RECALL |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0893851A1 EP0893851A1 (en) | 1999-01-27 |
| EP0893851B1 true EP0893851B1 (en) | 2001-12-12 |
Family
ID=9509463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP98401593A Expired - Lifetime EP0893851B1 (en) | 1997-07-22 | 1998-06-26 | Electric contact with elastic return |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US6120305A (en) |
| EP (1) | EP0893851B1 (en) |
| JP (1) | JPH11144777A (en) |
| AU (1) | AU741150B2 (en) |
| CA (1) | CA2242674A1 (en) |
| DE (1) | DE69802874T2 (en) |
| ES (1) | ES2166591T3 (en) |
| FR (1) | FR2766629B1 (en) |
| ZA (1) | ZA986426B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1296842B1 (en) * | 1997-12-05 | 1999-08-02 | Cembre Spa | TERMINALS FOR ELECTRIC CONDUCTOR |
| CN103441356A (en) * | 2013-01-07 | 2013-12-11 | 张琴中 | Socket box |
| CN104836048B (en) * | 2015-04-16 | 2017-02-22 | 深圳东金汽车电子有限公司 | Reversing radar camera shooting device and camera shooting system based on same |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4361372A (en) * | 1980-09-25 | 1982-11-30 | International Telephone And Telegraph Corporation | Connector panel for an electronic cabinet |
| US4711510A (en) * | 1986-05-15 | 1987-12-08 | Orlando Jr Alfred J | Electrical connector for tractor-trailer rig |
| US4790765A (en) * | 1987-10-05 | 1988-12-13 | Hubbell Incorporated | Connector shunt structure |
| WO1994024598A1 (en) * | 1993-04-16 | 1994-10-27 | Raychem Corporation | Bonding assembly for fiber optic cable and associated method |
| US5679032A (en) * | 1993-05-05 | 1997-10-21 | Electric Motion Company, Inc. | Strain relief device for clamp assembly |
| FR2709883B1 (en) * | 1993-09-09 | 1995-10-13 | Sepm | Electric contact with elastic return. |
| US5769652A (en) * | 1996-12-31 | 1998-06-23 | Applied Engineering Products, Inc. | Float mount coaxial connector |
-
1997
- 1997-07-22 FR FR9709274A patent/FR2766629B1/en not_active Expired - Fee Related
-
1998
- 1998-06-26 DE DE69802874T patent/DE69802874T2/en not_active Expired - Fee Related
- 1998-06-26 EP EP98401593A patent/EP0893851B1/en not_active Expired - Lifetime
- 1998-06-26 ES ES98401593T patent/ES2166591T3/en not_active Expired - Lifetime
- 1998-07-10 JP JP10195281A patent/JPH11144777A/en active Pending
- 1998-07-15 AU AU76203/98A patent/AU741150B2/en not_active Ceased
- 1998-07-20 ZA ZA986426A patent/ZA986426B/en unknown
- 1998-07-21 US US09/119,977 patent/US6120305A/en not_active Expired - Fee Related
- 1998-07-21 CA CA002242674A patent/CA2242674A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| AU741150B2 (en) | 2001-11-22 |
| FR2766629A1 (en) | 1999-01-29 |
| CA2242674A1 (en) | 1999-01-22 |
| ZA986426B (en) | 1999-01-22 |
| DE69802874D1 (en) | 2002-01-24 |
| US6120305A (en) | 2000-09-19 |
| ES2166591T3 (en) | 2002-04-16 |
| AU7620398A (en) | 1999-02-04 |
| FR2766629B1 (en) | 1999-09-03 |
| JPH11144777A (en) | 1999-05-28 |
| DE69802874T2 (en) | 2002-06-13 |
| EP0893851A1 (en) | 1999-01-27 |
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