US20070267781A1 - Method For Applying A Protective Strip Onto A Cathode Plate For Obtaining A Metal In An Electrolytic Manner From An Electrolytic Fluid - Google Patents

Method For Applying A Protective Strip Onto A Cathode Plate For Obtaining A Metal In An Electrolytic Manner From An Electrolytic Fluid Download PDF

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Publication number
US20070267781A1
US20070267781A1 US11/662,567 US66256705A US2007267781A1 US 20070267781 A1 US20070267781 A1 US 20070267781A1 US 66256705 A US66256705 A US 66256705A US 2007267781 A1 US2007267781 A1 US 2007267781A1
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US
United States
Prior art keywords
cathode plate
protective strip
pressing
electrolytic
protective
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.)
Abandoned
Application number
US11/662,567
Inventor
Gerhard Anger
Josef Schnilhlbaumer
Leitner Markus
Gerner Gerhard
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Amag Rolling GmbH
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Individual
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Assigned to AMAG ROLLING GMBH reassignment AMAG ROLLING GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ANGER, GERHARD, GERNER, GERHARD, LEITNER, MARKUS, SCHNITZLBAUMER, JOSEF
Publication of US20070267781A1 publication Critical patent/US20070267781A1/en
Abandoned legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
    • C25C7/02—Electrodes; Connections thereof
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/5313—Means to assemble electrical device
    • Y10T29/53265—Means to assemble electrical device with work-holder for assembly

Definitions

  • the invention relates to a method for applying a protective strip onto a cathode plate for obtaining a metal in an electrolytic manner from an electrolytic fluid, with the protective strip made of plastic being pressed by means of a pressing tool against the heated cathode plate by melting on its surface facing the cathode plate and thereafter being cooled through the cathode plate.
  • the disadvantageous aspect in this known method for applying a protective strip to a cathode plate is especially that the bonding of the protective strip on the cathode plate can be impaired by trapped air pockets which are obtained during the pressing of the protective strips over their entire surface area against the heated cathode plate.
  • the protective strips not only prevent corrosion of the cathode plates but also are provided to protect the cathode plate from mechanical damage during the shaving of the metal deposited in an electrolytic manner on the cathode plate in the boundary region of the metal deposits, thus placing considerable demands on the bonding capabilities of the protective strips on the cathode plates.
  • the invention is thus based on the object of providing a method for applying a protective strip on a cathode plate for obtaining a metal in an electrolytic manner from an electrolyte fluid of the kind mentioned above in such a way that a joint between the protective strip and the cathode plate can be ensured which is capable of withstanding even higher loads.
  • the protective strip is applied at first onto a pressing tool which bulges forwardly against the cathode plate and is pressed with the help of said pressing tool against the cathode plate, a contact section is obtained at first in the apex of the bulging, with the pressing section extending gradually during the pressing travel to the entire extension of the pressing tool as a result of the elastic resilience of the pressing tool in respect of pressing, so that as a result of the progressing pressing of the protective strip against the cathode plate the likelihood of trapped air pockets can be excluded by the progressive pressing of the protective strip against the cathode plate despite the melting of the protective strip in the contact section.
  • the air between the heated cathode plate and the protective strip is displaced to the outside as a result of the bulge in the direction of bulge of the pressing tool, starting from the apex of the bulge in the direction of the bulge over the surface of the protective strip.
  • a snug fit of the protective strip on the cathode plate is ensured as a pre-condition for favorable bonding.
  • Especially advantageous pressing conditions are obtained for the protective strip when it is pressed against the cathode plate in a progressive manner starting from the middle section to both sides of the length and/or the width, because in this case the protective strip merely needs to be applied to the cathode plate merely over half the extension section away from the contact section as measured in the direction of bulging of the pressing tool.
  • the cathode plate is cooled by applying cooling plates after the pressing of the protective strip against the same, which cooling plates also provide a reduction of the cooling time.
  • an apparatus with a pressing tool for performing the method for applying a protective strip to a cathode plate, an apparatus with a pressing tool can be provided which comprises at least one pressing jaw for pressing a protective strip to one side of the cathode plate.
  • the pressing jaw comprises a leaf spring bulging forwardly against the cathode plate for the purpose of receiving the protective strip.
  • the leaf spring which places the received protective strip in the apex section of the bulge of the leaf spring onto the cathode plate during a pressing stroke of the pressing tool will be pressed flat during the further progress of the pressing, with the protective strip being pressed in the direction of the bulging progressively against the cathode plate starting from the contact section.
  • Said progressive pressing of the protective strip against the cathode plate not only avoids air pockets between the cathode plate and the protective strip, but also offers advantages for any shaping of the protective strip which is softened over the heated cathode plate because said shaping need not be performed simultaneously over the extension of the protective strip in the direction of bulging of the leaf spring.
  • the leaf spring can be provided with a profile corresponding to the desired cross section of the protective strip in connection with such a shaping of the protective strip during the pressing against the cathode plate.
  • FIG. 1 shows an apparatus in accordance with the invention for applying a protective strip to a cathode plate in a schematic top view of the pressing jaws of a pressing tool
  • FIG. 2 shows a sectional view along line II-II in FIG. 1 on an enlarged scale.
  • the cathode plate 1 In order to protect a cathode plate 1 which is suspended with the help of a carrying strip 2 in an electroplating bath for depositing a metal from an electrolytic fluid from corrosive attack by the electrolytic fluid in the region of the bath level, the cathode plate 1 is covered in the section of the bath level threatened by corrosion on both sides of the plate with a protective strip 3 made of a suitable thermoplastic material, preferably with a copolymer polyolefin.
  • the cathode plate 1 can be brushed in the region of the later protective strips 3 prior to its heating in order to clean the surface of the cathode plate 1 in this region and to obtain on the other a surface structure which improves the bonding with the protective strips 3 .
  • the connection of the protective strips 3 with the cathode plate 1 occurs by pressing the protective strips 3 against the respectively heated cathode plate 1 , with the protective strips 3 being molten against the surface facing the cathode plate 1 , so that during the subsequent cooling a favorable bonding is obtained when the inclusion of air pockets between the cathode plate 1 and the protective strips 3 can be prevented.
  • a pressing tool 4 which comprises two press jaws 5 with leaf springs 6 bulging forwardly against the cathode plate 1 for receiving the protective strips 3 .
  • Said leaf springs 6 are held on the press jaws 5 in guide shoes 7 to be displaceable lengthwise in order to enable pressing flat the leaf springs 6 during the pressing travel.
  • the protective strips 3 clamped on the bulging leaf springs 6 are pressed at first in the apex region of the leaf spring bulging against the heated cathode plate 1 , as is shown in FIG. 1 .
  • the protective strips 3 are pressed starting from said middle contact section 8 progressively lengthwise against the cathode plate 1 because the leaf springs 6 are increasingly pressed flatly in order to finally be held pressed against the cathode plate 1 over the entire length.
  • the cathode plate 1 can be removed with the applied protective strips 3 from the pressing tool 4 .
  • the leaf springs 6 can be profiled according to the desired cross section of the protective strips 3 in order to achieve a rounding of the longitudinal edge in the region of the longitudinal sides of the protective strips 3 facing the electrolytic bath during the pressing of said protective strips 3 against the cathode plate 1 .
  • Such a plastic deformation is easily possible as a result of the heating of the protective strips 3 by the cathode plate 1 .
  • the pressing pressure is preferably between 4 to 6 bar and is held for approximately 1 minute before the cathode plate 1 is cooled via cooling plates to a stacking temperature.
  • edge strips 9 which are profiled in a U-shaped way
  • the pressing of the protective strips against the cathode plate 1 which occurs progressively against the ends of the protective strips 1 will also ensure an interlocking connection of the protective strips 3 to the edge strips 9 without having to fear any likelihood of corrosion in the connecting region for the cathode plate 1 .

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Electroplating Methods And Accessories (AREA)

Abstract

A method is described for applying a protective strip onto a cathode plate for obtaining a metal in an electrolytic manner from an electrolytic fluid, with the protective strip made of plastic being pressed by means of a pressing tool against the heated cathode plate by melting on its surface facing the cathode plate and thereafter being cooled through the cathode plate. In order to ensure a snug fit of the protective strip, it is applied onto a pressing tool which is elastically resilient in respect of pressing and bulges forwardly against the cathode plate and is pressed against the cathode plate in a progressive manner starting from a contact section determined by the bulging of the pressing tool.

Description

    FIELD OF THE INVENTION
  • The invention relates to a method for applying a protective strip onto a cathode plate for obtaining a metal in an electrolytic manner from an electrolytic fluid, with the protective strip made of plastic being pressed by means of a pressing tool against the heated cathode plate by melting on its surface facing the cathode plate and thereafter being cooled through the cathode plate.
    • DESCRIPTION OF THE PRIOR ART
  • In order to prevent corrosion of the cathode plate in the region of the bath level of the respectively employed electrolyte in the case of cathode plates for obtaining a metal electrolytically, especially of zinc, it is known to apply protective strips made of a copolymer polyolefin onto the cathode plate in the region of the corrosive attack (AT 403 808 B). For this purpose, the cathode plate is heated and the protective strip is pressed by means of a pressing tool against the cathode plate, so that the protective strip is molten onto the cathode plate in the region of contact and joins with the cathode plate under cooling which is achieved by air cooling of the cathode plate. During the cooling the pressing pressure of the protective strip against the cathode plate is maintained. The disadvantageous aspect in this known method for applying a protective strip to a cathode plate is especially that the bonding of the protective strip on the cathode plate can be impaired by trapped air pockets which are obtained during the pressing of the protective strips over their entire surface area against the heated cathode plate. Notice must be taken in this connection that the protective strips not only prevent corrosion of the cathode plates but also are provided to protect the cathode plate from mechanical damage during the shaving of the metal deposited in an electrolytic manner on the cathode plate in the boundary region of the metal deposits, thus placing considerable demands on the bonding capabilities of the protective strips on the cathode plates.
    • SUMMARY OF THE INVENTION
  • The invention is thus based on the object of providing a method for applying a protective strip on a cathode plate for obtaining a metal in an electrolytic manner from an electrolyte fluid of the kind mentioned above in such a way that a joint between the protective strip and the cathode plate can be ensured which is capable of withstanding even higher loads.
  • This object is achieved in accordance with the invention in such a way that the protective strip is applied onto a pressing tool which is elastically resilient in respect of pressing and bulges forwardly against the cathode plate and is pressed against the cathode plate in a progressive manner starting from a contact section determined by the bulging of the pressing tool.
  • Since as a result of this measure the protective strip is applied at first onto a pressing tool which bulges forwardly against the cathode plate and is pressed with the help of said pressing tool against the cathode plate, a contact section is obtained at first in the apex of the bulging, with the pressing section extending gradually during the pressing travel to the entire extension of the pressing tool as a result of the elastic resilience of the pressing tool in respect of pressing, so that as a result of the progressing pressing of the protective strip against the cathode plate the likelihood of trapped air pockets can be excluded by the progressive pressing of the protective strip against the cathode plate despite the melting of the protective strip in the contact section. The air between the heated cathode plate and the protective strip is displaced to the outside as a result of the bulge in the direction of bulge of the pressing tool, starting from the apex of the bulge in the direction of the bulge over the surface of the protective strip. A snug fit of the protective strip on the cathode plate is ensured as a pre-condition for favorable bonding.
  • Especially advantageous pressing conditions are obtained for the protective strip when it is pressed against the cathode plate in a progressive manner starting from the middle section to both sides of the length and/or the width, because in this case the protective strip merely needs to be applied to the cathode plate merely over half the extension section away from the contact section as measured in the direction of bulging of the pressing tool.
  • In order to ensure even cooling of the cathode plate and thus preventing thermal distortion of the cathode plate, the cathode plate is cooled by applying cooling plates after the pressing of the protective strip against the same, which cooling plates also provide a reduction of the cooling time.
  • For performing the method for applying a protective strip to a cathode plate, an apparatus with a pressing tool can be provided which comprises at least one pressing jaw for pressing a protective strip to one side of the cathode plate. In order to enable a pressurization with simple constructional means of the protective strip starting from a contact section and progressing in the longitudinal direction, the pressing jaw comprises a leaf spring bulging forwardly against the cathode plate for the purpose of receiving the protective strip. The leaf spring which places the received protective strip in the apex section of the bulge of the leaf spring onto the cathode plate during a pressing stroke of the pressing tool will be pressed flat during the further progress of the pressing, with the protective strip being pressed in the direction of the bulging progressively against the cathode plate starting from the contact section. Said progressive pressing of the protective strip against the cathode plate not only avoids air pockets between the cathode plate and the protective strip, but also offers advantages for any shaping of the protective strip which is softened over the heated cathode plate because said shaping need not be performed simultaneously over the extension of the protective strip in the direction of bulging of the leaf spring. The leaf spring can be provided with a profile corresponding to the desired cross section of the protective strip in connection with such a shaping of the protective strip during the pressing against the cathode plate.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • The method in accordance with the invention will be explained in closer detail by reference to the drawings, wherein:
  • FIG. 1 shows an apparatus in accordance with the invention for applying a protective strip to a cathode plate in a schematic top view of the pressing jaws of a pressing tool, and
  • FIG. 2 shows a sectional view along line II-II in FIG. 1 on an enlarged scale.
    • DESCRIPTION OF THE PREFERRED EMBODIMENT
  • In order to protect a cathode plate 1 which is suspended with the help of a carrying strip 2 in an electroplating bath for depositing a metal from an electrolytic fluid from corrosive attack by the electrolytic fluid in the region of the bath level, the cathode plate 1 is covered in the section of the bath level threatened by corrosion on both sides of the plate with a protective strip 3 made of a suitable thermoplastic material, preferably with a copolymer polyolefin. For preparation purposes, the cathode plate 1 can be brushed in the region of the later protective strips 3 prior to its heating in order to clean the surface of the cathode plate 1 in this region and to obtain on the other a surface structure which improves the bonding with the protective strips 3.
  • The connection of the protective strips 3 with the cathode plate 1 occurs by pressing the protective strips 3 against the respectively heated cathode plate 1, with the protective strips 3 being molten against the surface facing the cathode plate 1, so that during the subsequent cooling a favorable bonding is obtained when the inclusion of air pockets between the cathode plate 1 and the protective strips 3 can be prevented. This is managed with a pressing tool 4 which comprises two press jaws 5 with leaf springs 6 bulging forwardly against the cathode plate 1 for receiving the protective strips 3. Said leaf springs 6 are held on the press jaws 5 in guide shoes 7 to be displaceable lengthwise in order to enable pressing flat the leaf springs 6 during the pressing travel.
  • When the press jaws 5 are applied from opposite sides against the cathode plate 1, the protective strips 3 clamped on the bulging leaf springs 6 are pressed at first in the apex region of the leaf spring bulging against the heated cathode plate 1, as is shown in FIG. 1. During the following press travel, the protective strips 3 are pressed starting from said middle contact section 8 progressively lengthwise against the cathode plate 1 because the leaf springs 6 are increasingly pressed flatly in order to finally be held pressed against the cathode plate 1 over the entire length. After the cooling of the cathode plate 1, preferably with the help of cooling plates, the cathode plate 1 can be removed with the applied protective strips 3 from the pressing tool 4.
  • As is shown in FIG. 2, the leaf springs 6 can be profiled according to the desired cross section of the protective strips 3 in order to achieve a rounding of the longitudinal edge in the region of the longitudinal sides of the protective strips 3 facing the electrolytic bath during the pressing of said protective strips 3 against the cathode plate 1. Such a plastic deformation is easily possible as a result of the heating of the protective strips 3 by the cathode plate 1.
  • It has been seen that a heating of the cathode plate to 175° C. to 195° C. is sufficient to melt on the protective strips 3. The pressing pressure is preferably between 4 to 6 bar and is held for approximately 1 minute before the cathode plate 1 is cooled via cooling plates to a stacking temperature.
  • When the side edges of the cathode plate 1 are protected by edge strips 9 which are profiled in a U-shaped way, the pressing of the protective strips against the cathode plate 1 which occurs progressively against the ends of the protective strips 1 will also ensure an interlocking connection of the protective strips 3 to the edge strips 9 without having to fear any likelihood of corrosion in the connecting region for the cathode plate 1.

Claims (5)

1. A method for applying a protective strip onto a cathode plate for obtaining a metal in an electrolytic manner from an electrolytic fluid, with the protective strip made of plastic being pressed by means of a pressing tool against the heated cathode plate by melting on its surface facing the cathode plate and thereafter being cooled through the cathode plate, wherein the protective strip is applied onto a pressing tool which is elastically resilient in respect of pressing and bulges forwardly against the cathode plate and is pressed against the cathode plate in a progressive manner starting from a contact section determined by the bulging of the pressing tool.
2. A method according to claim 1, wherein the protective strip is pressed against the cathode plate in a progressive manner starting from the middle section to both sides of the length and/or the width.
3. A method according to claim 1, wherein the cathode plate is cooled after the pressing of the protective strip by application of cooling plates.
4. An apparatus for performing the method according to claim 1 with a pressing tool which comprises at least one press jaw for pressing a protective strip to one side of the cathode plate, wherein the press jaw (5) comprises a leaf spring (6) which is bulged forwardly against the cathode plate (1) for receiving the protective strip (3).
5. An apparatus according to claim 4, wherein the leaf spring (6) comprises a profile corresponding to the desired cross section of the protective strip (3).
US11/662,567 2004-09-13 2005-09-13 Method For Applying A Protective Strip Onto A Cathode Plate For Obtaining A Metal In An Electrolytic Manner From An Electrolytic Fluid Abandoned US20070267781A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT0152304A AT413385B (en) 2004-09-13 2004-09-13 METHOD OF APPLYING A PROTECTIVE STRIP TO A CATHODE SHEET FOR ELECTROLYTICALLY OBTAINING A METAL FROM AN ELECTROLYTE LIQUID
ATA1523/2004 2004-09-13
PCT/AT2005/000363 WO2006029428A2 (en) 2004-09-13 2005-09-13 Method for applying a protective strip to a cathode sheet for electrolytically obtaining a metal from a electrolytic fluid

Publications (1)

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US20070267781A1 true US20070267781A1 (en) 2007-11-22

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US (1) US20070267781A1 (en)
EP (1) EP1789610B1 (en)
JP (1) JP2008513608A (en)
AT (2) AT413385B (en)
AU (1) AU2005284650B2 (en)
CA (1) CA2580089C (en)
DE (1) DE502005002447D1 (en)
ES (1) ES2299083T3 (en)
NO (1) NO341133B1 (en)
PL (1) PL1789610T3 (en)
WO (1) WO2006029428A2 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO344197B1 (en) * 2018-05-04 2019-10-14 Partek As Electrical insulation of plate-shaped electrodes

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1206656A (en) * 1912-08-01 1916-11-28 Edouard Benedictus Press-plate.
US5092954A (en) * 1989-04-14 1992-03-03 Gurit-Essex Ag Devices for mechanically applying a flexible multi-layer body member which is adherent on its one side to the surface of a workpiece
US5494546A (en) * 1994-02-18 1996-02-27 Horvath; Steven J. Apparatus and method for applying anti-lacerative film to glass
US5785827A (en) * 1997-02-07 1998-07-28 Dougherty; Robert C. Edge protector for refining plates
US6579409B2 (en) * 2001-02-14 2003-06-17 Lexmark International, Inc. Segmented compliant platen for film sealing on ink jet cartridges
US20030113502A1 (en) * 2001-12-14 2003-06-19 Asahi Glass Company, Limited Film joining method, a wide film produced by the joining method and a covering material for agricultural use made of the wide film
US20040238112A1 (en) * 2003-06-02 2004-12-02 Asm Assembly Automation Ltd. Pick and place assembly for transporting a film of material

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JPS55147612A (en) * 1979-05-09 1980-11-17 Toshiba Corp Polarizing plate gluing device
JPS6333590A (en) * 1986-07-28 1988-02-13 Akita Seiren Kk Method for insulating and coating peripheral edge part of electrolytic cathode
JP2976678B2 (en) * 1992-03-04 1999-11-10 松下電器産業株式会社 Manufacturing method of multilayer ceramic capacitor
AT403808B (en) * 1994-09-29 1998-05-25 Austria Metall Cathode plate for the electrolytic recovery of metals from a liquid electrolyte
DE19620504C2 (en) * 1996-05-22 1999-05-12 Mtu Friedrichshafen Gmbh Electrode for a molten carbonate fuel cell and method for producing such and their use
JP3378447B2 (en) * 1996-08-30 2003-02-17 タキロン株式会社 Metal plate coating adhesion method
JPH1114827A (en) * 1997-06-23 1999-01-22 Hitachi Ltd Polarizing plate sticking device
JP3931330B2 (en) * 2001-09-14 2007-06-13 ソニー株式会社 Hot press plate and card manufacturing equipment

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1206656A (en) * 1912-08-01 1916-11-28 Edouard Benedictus Press-plate.
US5092954A (en) * 1989-04-14 1992-03-03 Gurit-Essex Ag Devices for mechanically applying a flexible multi-layer body member which is adherent on its one side to the surface of a workpiece
US5494546A (en) * 1994-02-18 1996-02-27 Horvath; Steven J. Apparatus and method for applying anti-lacerative film to glass
US5785827A (en) * 1997-02-07 1998-07-28 Dougherty; Robert C. Edge protector for refining plates
US6579409B2 (en) * 2001-02-14 2003-06-17 Lexmark International, Inc. Segmented compliant platen for film sealing on ink jet cartridges
US20030113502A1 (en) * 2001-12-14 2003-06-19 Asahi Glass Company, Limited Film joining method, a wide film produced by the joining method and a covering material for agricultural use made of the wide film
US20040238112A1 (en) * 2003-06-02 2004-12-02 Asm Assembly Automation Ltd. Pick and place assembly for transporting a film of material

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Publication number Publication date
JP2008513608A (en) 2008-05-01
NO20071906L (en) 2007-04-13
WO2006029428A3 (en) 2006-08-03
PL1789610T3 (en) 2008-05-30
AU2005284650B2 (en) 2010-06-17
DE502005002447D1 (en) 2008-02-14
WO2006029428A2 (en) 2006-03-23
NO341133B1 (en) 2017-08-28
EP1789610B1 (en) 2008-01-02
ATE382723T1 (en) 2008-01-15
EP1789610A2 (en) 2007-05-30
ES2299083T3 (en) 2008-05-16
AU2005284650A1 (en) 2006-03-23
ATA15232004A (en) 2005-07-15
AT413385B (en) 2006-02-15
CA2580089A1 (en) 2006-03-23
CA2580089C (en) 2012-01-24

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AS Assignment

Owner name: AMAG ROLLING GMBH, AUSTRIA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ANGER, GERHARD;SCHNITZLBAUMER, JOSEF;LEITNER, MARKUS;AND OTHERS;REEL/FRAME:019788/0539

Effective date: 20070817

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION