EP0718922A2 - Contact strip - Google Patents

Contact strip Download PDF

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Publication number
EP0718922A2
EP0718922A2 EP95118223A EP95118223A EP0718922A2 EP 0718922 A2 EP0718922 A2 EP 0718922A2 EP 95118223 A EP95118223 A EP 95118223A EP 95118223 A EP95118223 A EP 95118223A EP 0718922 A2 EP0718922 A2 EP 0718922A2
Authority
EP
European Patent Office
Prior art keywords
housing
strip according
metal
connector
power strip
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.)
Withdrawn
Application number
EP95118223A
Other languages
German (de)
French (fr)
Other versions
EP0718922A3 (en
Inventor
Franz Czeschka
Jürgen Lappöhn
Wolfgang Dr. Hornig
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Diehl Stiftung and Co KG
Original Assignee
ERNI Electronics GmbH and Co KG
Diehl GmbH and Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ERNI Electronics GmbH and Co KG, Diehl GmbH and Co filed Critical ERNI Electronics GmbH and Co KG
Publication of EP0718922A2 publication Critical patent/EP0718922A2/en
Publication of EP0718922A3 publication Critical patent/EP0718922A3/en
Withdrawn legal-status Critical Current

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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
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/71—Coupling devices for rigid printing circuits or like structures
    • H01R12/72—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures
    • H01R12/721—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures cooperating directly with the edge of the rigid printed circuits
    • 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
    • H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding  
    • H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
    • 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
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/521—Sealing between contact members and housing, e.g. sealing insert
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S439/00—Electrical connectors
    • Y10S439/931—Conductive coating

Definitions

  • the invention relates to a power strip according to the preamble of claim 1. It is primarily intended for a plug connection for installation at the front in a memory card with a metallic housing for connection to a plug contact strip, for example a computer or the like.
  • the object of the present invention is therefore also to be seen in helping to eliminate the disadvantages mentioned at the outset and to create a tight connection here, too, by redesigning the detail of the plug to be installed.
  • the drawings first of all generally show the connection area of a memory card 1 with front-side connector strip 2a for connection to a pin contact strip 3, for example a computer or the like, the memory card 1 having a spacer frame 4 which extends from the connector strip 2a in a U-shape and has at least metallized surfaces and is sandwich-like on both sides and thus dust and moisture-proof by soft soldering connected, metallic housing cover plates 5.
  • the connector strip 2a consists of a non-metallic material and has a series of metallic bushings, each having a socket 2 on one side and a contact pin 2b on the other.
  • the connector strip 2a is metallized on its surfaces that come into contact with the metal parts 5 of the housing in the form of a metal coating "M" and on the surface with the contact pins 2b sealing potting compound 7 is occupied.
  • the metal coating "M” has a coefficient of thermal expansion has, which lies between those of the material of the connector strip 2a and the housing metal parts 5, and in addition the thermal expansion coefficients of the material of the connector strip 2a, the housing metal parts 5 and the metal coating "M” are adapted, ie should be as close as possible to one another.
  • Possible materials of the metal coating are molybdenum, tungsten, nickel-cobalt, tin or similar suitable elements.
  • the overall design is also characterized by lateral centering (groove 4b and tongue 2c) on the connector strip 2a and the free legs 4a of the spacer frame 4, and pins or cams 9 on the metal-coated surfaces "M" of the insulating body 2a and in addition Corresponding recesses in the metallic housing parts 5 to absorb any expansion forces.
  • the metal coating of the connector strip 2a also opens up the possibility of a design without a sealing compound 7 on the surface having the contact pins 2b below the cover plate 8 in other areas of application in which the tightness requirements are not as high.
  • housing parts 5 are not only soldered to the connector or its bar 2a in the area of the metal coating in a punctiform manner or the like, but rather with a large area.

Landscapes

  • Connector Housings Or Holding Contact Members (AREA)

Abstract

The connector rail (2a) is made of a non-metallic material, in intimate contact with a metal housing part (5) and receiving a series of metal inserts, reach having a socket sleeve (2) at one side and a contact pin (2b) at the other side. The part of the connector rail housing in contact with the metal housing part has a metallised coating (M), with a resin sealing mass (7) extending across the end from which the contact pins project. Pref. the heat expansion coefficient of the metallised coating lies between that of the metal housing part and the material of the connector rail.

Description

Die Erfindung bezieht sich auf eine Steckerleiste nach dem Oberbegriff des Patentanspruchs 1. Sie ist dabei vornehmlich gedacht für eine Steckverbindung zum stirnseitigen Einbau in eine Speicherkarte mit metallischem Gehäuse zum Anschluß an eine Steckkontaktleiste beispielsweise eines Rechners o.dgl.The invention relates to a power strip according to the preamble of claim 1. It is primarily intended for a plug connection for installation at the front in a memory card with a metallic housing for connection to a plug contact strip, for example a computer or the like.

Die früher bekannten Speicherkarten hatten aufgrund ihrer Bauweise den großen Nachteil, daß sie nur sehr ungenügend gegen äußere Einflüsse wie Staub, Dämpfe, Feuchtigkeit u. dgl. geschützt waren und somit bei längerem Gebrauch nach und nach in ihrer Funktion beeinträchtigt wurden.The previously known memory cards had the major disadvantage due to their construction that they were only very inadequate against external influences such as dust, vapors, moisture and the like. Like. were protected and thus their function was gradually impaired with prolonged use.

Dies hat in der Zwischenzeit zwar zur Entwicklung von dichten Metallgehäusen geführt, jedoch ist bislang als Schwachstelle hierbei immer noch die Verbindung eines solchen Gehäuses mit einer geeigneten Steckerleiste verblieben.In the meantime, this has led to the development of dense metal housings, however the connection of such a housing with a suitable plug connector has still remained as a weak point.

Die Aufgabe der vorliegenden Erfindung ist deshalb auch darin zu sehen, durch eine neue Detailgestaltung des einzubauenden Steckers dazu beizutragen, die eingangs aufgezeigten Nachteile zu beseitigen und auch hier eine dichte Verbindung zu schaffen.The object of the present invention is therefore also to be seen in helping to eliminate the disadvantages mentioned at the outset and to create a tight connection here, too, by redesigning the detail of the plug to be installed.

Gelöst wird diese Aufgabe dabei durch die kennzeichnenden Merkmale des Patentanspruchs 1 in sinnvoller Verbindung mit den Merkmalen der Unteransprüche.This object is achieved by the characterizing features of claim 1 in more meaningful Connection with the features of the subclaims.

Ein Ausführungsbeispiel der Erfindung ist zudem in den Zeichnungen dargestellt, wobei Darstellung und Beschreibung des Metallgehäuses als bereits bekannt anzusehen sind und nur der Erläuterung dienen.An embodiment of the invention is also shown in the drawings, the representation and description of the metal housing are to be regarded as already known and are used only for explanation.

Es zeigen:

Fig. 1
den stirnseitigen Steckerbereich ohne Gehäuse in Ansicht,
Fig. 2
einen Querschnitt zu Fig. 1 mit angedeutetem Gehäuse in vergrößertem Maßstab,
Fig. 3
einen Teilbereich von Fig. 1 perspektivisch und als sogenannte Explosionsdarstellung und
Fig. 4
den gleichen Bereich in zusammengebautem Zustand.
Show it:
Fig. 1
the front connector area without housing in view,
Fig. 2
2 shows a cross section to FIG. 1 with the housing indicated on an enlarged scale,
Fig. 3
a partial area of FIG. 1 in perspective and as a so-called exploded view and
Fig. 4
the same area when assembled.

Die zeichnerischen Darstellungen zeigen zunächst einmal generell den Anschlußbereich einer Speicherkarte 1 mit stirnseitiger Steckerleiste 2a zum Anschluß an eine Stiftkontaktleiste 3 beispielsweise eines Rechners o. ä., wobei die Speicherkarte 1 einen von der Steckerleiste 2a aus U-förmig umlaufenden Abstandsrahmen 4 aufweist mit zumindest metallisierten Oberflächen sowie beidseits sandwichartig und durch Weichlötung damit staub- und feuchtigkeitsdicht verbundenen, metallischen Gehäusedeckplatten 5.The drawings first of all generally show the connection area of a memory card 1 with front-side connector strip 2a for connection to a pin contact strip 3, for example a computer or the like, the memory card 1 having a spacer frame 4 which extends from the connector strip 2a in a U-shape and has at least metallized surfaces and is sandwich-like on both sides and thus dust and moisture-proof by soft soldering connected, metallic housing cover plates 5.

Die Steckerleiste 2a besteht dabei aus einem nichtmetallischen Werkstoff und besitzt eine Reihe metallischer Durchführungen, die an der einen Seite jeweils eine Buchse 2 und an der anderen einen Kontaktpin 2b aufweisen.The connector strip 2a consists of a non-metallic material and has a series of metallic bushings, each having a socket 2 on one side and a contact pin 2b on the other.

Erfindungsgemäß ist bei dieser Steckerleiste 2a nunmehr vorgesehen, daß zur Schaffung der gewünscht dichten Verbindung die Steckerleiste 2a an ihren mit den Metallteilen 5 des Gehäuses in Berührung kommenden Flächen in Form einer Metallbeschichtung "M" metallisiert ist und an der die Kontaktpins 2b aufweisenden Fläche mit einer abdichtenden Vergußmasse 7 belegt ist. In spezieller Ausgestaltung dieser neuen Lösung ist es dabei noch von Bedeutung, daß die Metallbeschichtung "M" einen Wärmeausdehnungskoeffizienten besitzt, der zwischen jenen des Materials von Steckerleiste 2a und Gehäuse-Metallteilen 5 liegt, wobei zudem die Wärmeausdehnungskoeffizienten des Materials der Steckerleiste 2a, der Gehäuse-Metallteile 5 und der Metallbeschichtung "M" angepaßt sind, d. h. möglichst nahe beieinander liegen sollten. Mögliche Materialien der Metallbeschichtung sind dabei Molybdän, Wolfram, Nickel-Kobalt, Zinn o. ä. geeignete Elemente.According to the invention, it is now provided in this connector strip 2a that, in order to create the desired tight connection, the connector strip 2a is metallized on its surfaces that come into contact with the metal parts 5 of the housing in the form of a metal coating "M" and on the surface with the contact pins 2b sealing potting compound 7 is occupied. In a special embodiment of this new solution, it is also important that the metal coating "M" has a coefficient of thermal expansion has, which lies between those of the material of the connector strip 2a and the housing metal parts 5, and in addition the thermal expansion coefficients of the material of the connector strip 2a, the housing metal parts 5 and the metal coating "M" are adapted, ie should be as close as possible to one another. Possible materials of the metal coating are molybdenum, tungsten, nickel-cobalt, tin or similar suitable elements.

In rein baulicher Ausgestaltung zeichnet sich die Gesamtbauform noch aus durch seitliche Zentrierungen ( Nut 4b und Feder 2c ) an der Steckerleiste 2a und den freien Schenkeln 4a des Abstandsrahmens 4 sowie Zapfen bzw. Nocken 9 auf den metallbeschichteten Oberflächen "M" des Isolierkörpers 2a und dazu korrespondierende Aussparungen in den metallischen Gehäuseteilen 5 zum Abfangen von eventuellen Dehnkräften.In a purely structural design, the overall design is also characterized by lateral centering (groove 4b and tongue 2c) on the connector strip 2a and the free legs 4a of the spacer frame 4, and pins or cams 9 on the metal-coated surfaces "M" of the insulating body 2a and in addition Corresponding recesses in the metallic housing parts 5 to absorb any expansion forces.

Diese neue Gesamtbauform in Verbindung mit der vorzugsweise aus Kunstharz bestehenden, abdichtenden Vergußmasse 7 in den Kontaktanschlußbereichen unterhalb der Abdeckleiste 8, ergibt somit eine absolut staub- und feuchtigkeitsdichte sowie dauerhafte Kapselung der Leiterplatten 6 der hier zur Rede stehenden Speicherkarten 1.This new overall design in conjunction with the sealing compound 7, preferably made of synthetic resin, in the contact connection areas below the cover strip 8, thus results in an absolutely dust and moisture-proof and permanent encapsulation of the circuit boards 6 of the memory cards 1 in question.

Die Metallbeschichtung der Steckerleiste 2a eröffnet unabhängig von dem hier beschriebenen Anwendungsgebiet zudem noch die Möglichkeit einer Ausführung ohne abdichtende Vergußmasse 7 an der die Kontaktpins 2b aufweisenden Fläche unterhalb der Abdeckplatte 8 in anderen Einsatzgebieten, bei denen nicht so hohe Anforderungen an die Dichtigkeit gestellt werden.Regardless of the field of application described here, the metal coating of the connector strip 2a also opens up the possibility of a design without a sealing compound 7 on the surface having the contact pins 2b below the cover plate 8 in other areas of application in which the tightness requirements are not as high.

Letztlich ist es noch von Bedeutung, daß die Gehäuseteile 5 mit dem Steckverbinder bzw. dessen Leiste 2a im Bereich der Metallbeschichtung nicht nur punktförmig o. ä., sondern grobflächig miteinander verlötet sind.Ultimately, it is also important that the housing parts 5 are not only soldered to the connector or its bar 2a in the area of the metal coating in a punctiform manner or the like, but rather with a large area.

BezugsziffernverzeichnisReference number index

11
SpeicherkarteMemory card
22nd
BuchseRifle
2a2a
SteckerleistePower strip
2b2 B
KontaktpinContact pin
2c2c
Federfeather
2d2d
Oberflächesurface
33rd
StiftkontaktleistePin contact strip
44th
AbstandsrahmenSpacing frame
4a4a
freies Endefree end
4b4b
NutGroove
55
metallische Gehäuseteilemetallic housing parts
66
LeiterplatteCircuit board
77
VergußmasseSealing compound
88th
AbdeckleisteCover strip
99
Zapfen, NockenCones, cams
MM
MetallbeschichtungMetal coating
RR
SteckrichtungDirection of insertion

Claims (9)

Steckerleiste ( 2a ) aus einem nichtmetallischen Werkstoff für die dichte Verbindung mit metallischen Teilen ( 5 ) eines Gehäuses, wobei die Steckerleiste ( 2a ) mit einer Reihe metallischer Durchführungen versehen ist, die an der einen Seite eine Buchse ( 2 ) und an der anderen Seite einen Kontaktpin ( 2b ) aufweisen,
dadurch gekennzeichnet,
daß die Steckerleiste ( 2a ) an ihren mit den Metallteilen ( 5 ) des Gehäuses in Berührung kommenden Flächen in Form einer Metallbeschichtung ( M ) metallisiert ist und an der die Kontaktpins ( 2b ) aufweisenden Fläche mit einer abdichtenden Vergußmasse ( 7 ) belegt ist.Connector strip (2a) made of a non-metallic material for the tight connection to metallic parts (5) of a housing, the connector strip (2a) being provided with a series of metallic bushings, which have a socket (2) on one side and the other side have a contact pin (2b),
characterized,
that the connector strip (2a) is metallized on its surfaces in contact with the metal parts (5) of the housing in the form of a metal coating (M) and on the surface having the contact pins (2b) is covered with a sealing potting compound (7). Steckerleiste nach Anspruch 1,
dadurch gekennzeichnet,
daß die Metallbeschichtung ( M ) einen Wärmeausdehnungskoeffizienten besitzt, der zwischen jenen des Materials von Steckerleiste ( 2a ) und GehäuseMetallteilen ( 5 ) liegt.Power strip according to claim 1,
characterized,
that the metal coating (M) has a coefficient of thermal expansion which lies between that of the material of the connector strip (2a) and the housing metal parts (5). Steckerleiste nach Anspruch 1,
dadurch gekennzeichnet,
daß die Wäremeausdehnungskoeffizienten des Materials der Steckerleiste ( 2a ), der Gehäuse-Metallteile ( 5 ) und der Metallbeschichtung ( M ) "angepaßt" sind, d. h. möglichst nahe beieinander liegen.Power strip according to claim 1,
characterized,
that the thermal expansion coefficients of the material of the connector strip (2a), the housing metal parts (5) and the metal coating (M) are "adapted", that is to say as close as possible to one another. Steckerleiste nach Anspruch 2,
dadurch gekennzeichnet,
daß das Material der Metallbeschichtung ( M ) aus Molybdän, Wolfram, Nickel-Kobalt, Zinn o. ä. geeigneten Elementen besteht.Power strip according to claim 2,
characterized,
that the material of the metal coating (M) consists of molybdenum, tungsten, nickel-cobalt, tin or similar suitable elements. Steckerleiste nach Anspruch 1,
dadurch gekennzeichnet,
daß die abdichtende Vergußmasse ( 7 ) aus Kunstharz besteht.Power strip according to claim 1,
characterized,
that the sealing potting compound (7) consists of synthetic resin. Steckerleiste nach mindestens einem der vorhergehenden Ansprüche,
gekennzeichnet dadurch
seitliche Zentrierungen ( Nut 4b und Feder 2c ) an der Steckerleiste ( 2a ) und den freien Schenkeln ( 4a ) des Abstandsrahmens ( 4 ).Power strip according to at least one of the preceding claims,
characterized by it
lateral centering (groove 4b and tongue 2c) on the connector strip (2a) and the free legs (4a) of the spacer frame (4). Steckerleiste nach einem der vorhergehenden Ansprüche,
gekennzeichnet dadurch
Zapfen bzw. Nocken ( 9 ) auf den metallbeschichteten Oberflächen ( M ) des Isolierkörpers ( 2a ) und dazu korrespondierende Aussparungen in den metallischen Gehäuseteilen ( 5 ) zum Abfangen von eventuellen Dehnkräften.Power strip according to one of the preceding claims,
characterized by it
Pins or cams (9) on the metal-coated surfaces (M) of the insulating body (2a) and corresponding recesses in the metallic housing parts (5) to absorb any expansion forces. Steckerleiste nach Anspruch 1,
gekennzeichnet dadurch
eine Ausführung ohne abdichtende Vergußmasse ( 7 ) an der die Kontaktpins ( 2b ) aufweisenden Fläche unterhalb der Abdeckleiste ( 8 ).Power strip according to claim 1,
characterized by it
a version without sealing compound (7) on the surface having the contact pins (2b) below the cover strip (8). Steckerleiste nach mindestens einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß Gehäuseteile ( 5 ) und Steckerleiste ( 2a ) im Bereich der Metallisierung ( M ) grobflächig miteinander verlötet sind.Power strip according to at least one of the preceding claims,
characterized,
that housing parts (5) and connector strip (2a) are soldered to one another over a large area in the region of the metallization (M).
EP95118223A 1994-12-24 1995-11-20 Contact strip Withdrawn EP0718922A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4446747A DE4446747C2 (en) 1994-12-24 1994-12-24 Power strip
DE4446747 1994-12-24

Publications (2)

Publication Number Publication Date
EP0718922A2 true EP0718922A2 (en) 1996-06-26
EP0718922A3 EP0718922A3 (en) 1997-07-16

Family

ID=6537226

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95118223A Withdrawn EP0718922A3 (en) 1994-12-24 1995-11-20 Contact strip

Country Status (6)

Country Link
US (1) US5743764A (en)
EP (1) EP0718922A3 (en)
JP (1) JPH08222313A (en)
KR (1) KR960028737A (en)
DE (1) DE4446747C2 (en)
IL (1) IL116287A0 (en)

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US6402569B1 (en) 2000-05-05 2002-06-11 Alcoa Fujikura Ltd. Molded bus bar system
US6220877B1 (en) 2000-05-05 2001-04-24 Alcoa Fujikura Limited Monolithic terminal interface
JP3966407B2 (en) * 2002-09-24 2007-08-29 矢崎総業株式会社 Electromagnetic wave shield structure with oil-proof water
US8025530B2 (en) * 2008-07-14 2011-09-27 Savi Technology, Inc. Method and apparatus involving a housing with a sealed electrical connector
DE102010032313B4 (en) * 2010-07-27 2023-12-07 Volkswagen Ag Housing, plug contact connection and method for electrical contacting

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US4997392A (en) * 1989-11-06 1991-03-05 Motorola, Inc. Waterproof external connector
US5009616A (en) * 1989-12-14 1991-04-23 Amp Incorporated Connector assembly with back shell having vanes
DE9013007U1 (en) * 1990-09-12 1990-11-15 Siemens AG, 8000 München Connector consisting of a main body and an additional body
CA2057518C (en) * 1991-12-09 1996-11-19 Albert John Kerklaan Jacketted circuit card
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Non-Patent Citations (1)

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Title
None

Also Published As

Publication number Publication date
IL116287A0 (en) 1996-03-31
DE4446747C2 (en) 1998-04-09
DE4446747A1 (en) 1996-06-27
JPH08222313A (en) 1996-08-30
KR960028737A (en) 1996-07-22
EP0718922A3 (en) 1997-07-16
US5743764A (en) 1998-04-28

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