EP2191921A2 - Process for producing a copper-chromium contact element for medium-voltage switchgear assemblies, and contact element itself - Google Patents

Process for producing a copper-chromium contact element for medium-voltage switchgear assemblies, and contact element itself Download PDF

Info

Publication number
EP2191921A2
EP2191921A2 EP08020271A EP08020271A EP2191921A2 EP 2191921 A2 EP2191921 A2 EP 2191921A2 EP 08020271 A EP08020271 A EP 08020271A EP 08020271 A EP08020271 A EP 08020271A EP 2191921 A2 EP2191921 A2 EP 2191921A2
Authority
EP
European Patent Office
Prior art keywords
chromium
contact element
copper
particles
rounded
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP08020271A
Other languages
German (de)
French (fr)
Other versions
EP2191921B1 (en
EP2191921A3 (en
Inventor
Dietmar Dr.-Ing. Gentsch
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.)
ABB Technology AG
Original Assignee
ABB Technology AG
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 ABB Technology AG filed Critical ABB Technology AG
Priority to EP08020271A priority Critical patent/EP2191921B1/en
Priority to PCT/EP2009/008194 priority patent/WO2010057619A2/en
Publication of EP2191921A2 publication Critical patent/EP2191921A2/en
Publication of EP2191921A3 publication Critical patent/EP2191921A3/en
Application granted granted Critical
Publication of EP2191921B1 publication Critical patent/EP2191921B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/02—Contacts characterised by the material thereof
    • H01H1/0203—Contacts characterised by the material thereof specially adapted for vacuum switches
    • H01H1/0206—Contacts characterised by the material thereof specially adapted for vacuum switches containing as major components Cu and Cr
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/06—Metallic powder characterised by the shape of the particles
    • B22F1/065—Spherical particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/17—Metallic particles coated with metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
    • B22F2998/10—Processes characterised by the sequence of their steps

Definitions

  • the invention relates to a process for producing a contact element for medium-voltage switchgear assemblies, and also to the contact element itself, in accordance with the preamble of claims 1 and 6.
  • Contact elements for medium-voltage switchgear assemblies are often produced by means of sintering processes.
  • sintering processes not only copper but also an alloy of copper and chromium is used for increasing the resistance to erosion.
  • the sintering processes it is known to press what are known as green compacts with near final dimensions in advance, and these green compacts are then annealed.
  • Very large pressing forces are used during the pressing of the green compacts.
  • the powder consisting of copper and chromium particles is placed in a mold and the pressing tool then compresses said particles with a high pressing force. It has been observed in this process that the extremely hard particles of the chromium powder have a considerable abrasive effect on the surface of the pressing tool. Even after a few pressing operations, this damage to the pressing tool leads to intolerable deviations in the final dimensions of the green compact and in the surface quality thereof.
  • the invention is therefore based on the object of improving a process for producing a contact element for medium-voltage switchgear assemblies, and also a contact element itself, in such a way as to considerably lessen the abrasive effect which occurs during operation when the contact element is finished, and therefore to make the contact element more durable during operation.
  • the essence of the invention in this case is that the chromium particles in the powder mixture are surface-rounded in advance. This considerably reduces the mechanically abrasive effect on the expensive pressing tool. In this case, however, the outer surface of the hard chromium particles can be rounded in different ways.
  • a first option is for the chromium particles to be rounded mechanically in a mill, in particular in a ball mill.
  • the chromium powder rounded in this way is then used, for its part, for the copper/chrominum powder mixture required for production.
  • the chromium particles or the already mechanically rounded chromium particles are provided with a copper layer.
  • the chromium particles are alternately coated with copper particles in an inert crucible or a vacuum container and are then heat-treated such that the chromium particles are covered with a copper layer, and the powder which has been only loosely sintered is then ground again, and only then pressed and sintered with near final dimensions in the form of a green compact.
  • heating is of course carried out up to that temperature at which the copper covers the chromium particles.
  • the process is carried out under vacuum, under a hydrogen atmosphere or under inert gas. Further oxidation processes are avoided in the process.
  • the essence of the invention is that the chromium particles in the powder mixture have a surface-rounded structure before the pressing operation. This allows a low-abrasion, direct pressing operation with near final dimensions to be carried out using the pressing tool.
  • the structure is provided mechanically by breaking the edges in a mill, and/or the chromium powder or the chromium powder particles mechanically rounded in this way is/are rounded by vaporizing with copper. This results in a homogeneous, high-quality green compact, in the case of which the pressing tool can operate with considerably less abrasion.
  • the figure therefore merely shows an example of the microstructure of chromium powder particles as are used for this process.
  • a first illustration shows a chromium particle which has sharp edges per se.
  • this particle is provided with a copper layer in the manner described, and the surface of the resulting copper-coated chromium particle is therefore rounded in this way.
  • a further alternative is to mechanically round the chromium particles in, for example, a ball mill.
  • the chromium particles can also additionally be coated with copper. This then no longer only has the purpose of rounding, but also producing a copper/chromium alloy which is homogeneous as a result.
  • the coating operation can take place by means of vaporizing, or by layering copper and chromium powder without preceding mechanical pressure, and thermal tempering to a temperature at which copper powder melts or vaporizes and therefore coats the chromium powder.
  • the powder obtained is then the starting material for filling a pressing mold and for the production of a green compact.
  • the figure therefore firstly shows the edged chromium particle 1.
  • two alternative procedures can be used.
  • the milling operation in the mill may also be used in this case.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Nanotechnology (AREA)
  • Powder Metallurgy (AREA)
  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
  • Contacts (AREA)

Abstract

The invention relates to a process for producing a contact element for medium-voltage switchgear assemblies, and also to the contact element itself, in accordance with the preamble of claims 1 and 6. In order, in this case, to considerably lessen the abrasive effect which occurs during operation when the contact element is finished, and therefore to make the contact element more durable, the invention proposes that the chromium particles in the powder mixture are surface-rounded in advance by ball milling and/or by coating the particles with copper.

Description

  • The invention relates to a process for producing a contact element for medium-voltage switchgear assemblies, and also to the contact element itself, in accordance with the preamble of claims 1 and 6.
  • Contact elements for medium-voltage switchgear assemblies are often produced by means of sintering processes. In this case, not only copper but also an alloy of copper and chromium is used for increasing the resistance to erosion. In the case of the sintering processes, it is known to press what are known as green compacts with near final dimensions in advance, and these green compacts are then annealed.
  • Very large pressing forces are used during the pressing of the green compacts. In this case, the powder consisting of copper and chromium particles is placed in a mold and the pressing tool then compresses said particles with a high pressing force. It has been observed in this process that the extremely hard particles of the chromium powder have a considerable abrasive effect on the surface of the pressing tool. Even after a few pressing operations, this damage to the pressing tool leads to intolerable deviations in the final dimensions of the green compact and in the surface quality thereof.
  • The invention is therefore based on the object of improving a process for producing a contact element for medium-voltage switchgear assemblies, and also a contact element itself, in such a way as to considerably lessen the abrasive effect which occurs during operation when the contact element is finished, and therefore to make the contact element more durable during operation.
  • In the case of a process in accordance with the preamble of claim 1, the set object is achieved according to the invention by means of the characterizing features of claim 1.
  • Further advantageous refinements are specified in dependent claims 2 to 5.
  • In terms of a contact element, the set object is achieved according to the invention by means of the characterizing features of claim 6.
  • The essence of the invention in this case is that the chromium particles in the powder mixture are surface-rounded in advance. This considerably reduces the mechanically abrasive effect on the expensive pressing tool. In this case, however, the outer surface of the hard chromium particles can be rounded in different ways.
  • A first option is for the chromium particles to be rounded mechanically in a mill, in particular in a ball mill. The chromium powder rounded in this way is then used, for its part, for the copper/chrominum powder mixture required for production.
  • In a further refinement, it is provided that the chromium particles or the already mechanically rounded chromium particles are provided with a copper layer. In detail, this means the following: either this further copper coating is a further measure for the chromium particles which have already been mechanically rounded in advance, or else chromium particles which have not been mechanically rounded in advance, i.e. those which still have sharp edges, are rounded by the application of the copper layer. Both of these variants work.
  • In a further advantageous refinement, it is provided that the chromium particles are alternately coated with copper particles in an inert crucible or a vacuum container and are then heat-treated such that the chromium particles are covered with a copper layer, and the powder which has been only loosely sintered is then ground again, and only then pressed and sintered with near final dimensions in the form of a green compact.
  • This also applies to the two variants
    1. 1. mechanical rounding,
    2. 2. rounding by application of a copper layer.
  • During the heat treatment mentioned, heating is of course carried out up to that temperature at which the copper covers the chromium particles.
  • In a further advantageous refinement, it is provided that the process is carried out under vacuum, under a hydrogen atmosphere or under inert gas. Further oxidation processes are avoided in the process.
  • In terms of a contact element itself, the essence of the invention is that the chromium particles in the powder mixture have a surface-rounded structure before the pressing operation. This allows a low-abrasion, direct pressing operation with near final dimensions to be carried out using the pressing tool.
  • In a further advantageous refinement, it is stated that the structure is provided mechanically by breaking the edges in a mill, and/or the chromium powder or the chromium powder particles mechanically rounded in this way is/are rounded by vaporizing with copper. This results in a homogeneous, high-quality green compact, in the case of which the pressing tool can operate with considerably less abrasion.
  • Since the process for pressing green compacts is also largely known for contact elements, no further explanation is required here.
  • The figure therefore merely shows an example of the microstructure of chromium powder particles as are used for this process.
  • A first illustration shows a chromium particle which has sharp edges per se. In this case, this particle is provided with a copper layer in the manner described, and the surface of the resulting copper-coated chromium particle is therefore rounded in this way.
  • A further alternative is to mechanically round the chromium particles in, for example, a ball mill. In this case, the chromium particles can also additionally be coated with copper. This then no longer only has the purpose of rounding, but also producing a copper/chromium alloy which is homogeneous as a result.
  • The coating operation can take place by means of vaporizing, or by layering copper and chromium powder without preceding mechanical pressure, and thermal tempering to a temperature at which copper powder melts or vaporizes and therefore coats the chromium powder.
  • It is easily possible to subsequently mill the mixture as it is not pressed. The powder obtained is then the starting material for filling a pressing mold and for the production of a green compact.
  • The figure therefore firstly shows the edged chromium particle 1. In this case, two alternative procedures can be used.
    1. 1. The original shape of the chromium particle 1 has sharp edges and is therefore firstly rounded in a mill. It is then coated with copper, as described above.
      or
    2. 2. The edged chromium particle 1 is rounded by a correspondingly thick copper layer 2 merely by means of the coating.
  • Optionally, however, the milling operation in the mill may also be used in this case.

Claims (7)

  1. A process for producing a contact element for a medium-voltage switchgear assembly, in which a green compact is produced by pressing from a powder consisting of a copper/chromium mixture and is then sintered,
    wherein
    the chromium particles in the powder mixture are surface-rounded in advance.
  2. The process as claimed in claim 1,
    wherein
    the chromium particles are rounded mechanically in a mill, in particular in a ball mill.
  3. The process as claimed in claim 1 or 2,
    wherein
    the chromium particles or the already mechanically rounded chromium particles are provided with a copper layer.
  4. The process as claimed in claim 3,
    wherein
    the chromium particles are alternately coated with copper particles in an inert crucible or a vacuum container and are then heat-treated such that the chromium particles are covered with a copper layer, and the powder which has been only loosely sintered is then ground again, and only then pressed and sintered with near final dimensions in the form of a green compact.
  5. The process as claimed in claim 4,
    wherein
    the process is carried out under vacuum, under a hydrogen atmosphere or under inert gas.
  6. A contact element for a medium-voltage switchgear assembly, in which said contact element is produced by pressing from a green compact consisting of copper/chromium powder and is then sintered,
    wherein
    the chromium particles in the powder mixture have a surface-rounded structure before the pressing operation.
  7. The contact element as claimed in claim 6,
    wherein
    the structure is provided mechanically by breaking the edges in a mill, and/or the chromium powder or the chromium powder particles mechanically rounded in this way is/are rounded by vaporizing with copper.
EP08020271A 2008-11-21 2008-11-21 Process for producing a copper-chromium contact element for medium-voltage switchgear assemblies Not-in-force EP2191921B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP08020271A EP2191921B1 (en) 2008-11-21 2008-11-21 Process for producing a copper-chromium contact element for medium-voltage switchgear assemblies
PCT/EP2009/008194 WO2010057619A2 (en) 2008-11-21 2009-11-18 Process for producing a contact element for medium-voltage switchgear assemblies, and also contact element itself

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08020271A EP2191921B1 (en) 2008-11-21 2008-11-21 Process for producing a copper-chromium contact element for medium-voltage switchgear assemblies

Publications (3)

Publication Number Publication Date
EP2191921A2 true EP2191921A2 (en) 2010-06-02
EP2191921A3 EP2191921A3 (en) 2011-05-04
EP2191921B1 EP2191921B1 (en) 2013-01-09

Family

ID=40823018

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08020271A Not-in-force EP2191921B1 (en) 2008-11-21 2008-11-21 Process for producing a copper-chromium contact element for medium-voltage switchgear assemblies

Country Status (2)

Country Link
EP (1) EP2191921B1 (en)
WO (1) WO2010057619A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106312055A (en) * 2016-08-31 2017-01-11 陕西斯瑞新材料股份有限公司 Preparing method of copper-coated chromium alloy powder and copper-chromium contact

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103878366B (en) * 2014-04-16 2016-07-06 湖南大学 Copper clad chromium composite powder and its preparation method and application

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3785801A (en) * 1968-03-01 1974-01-15 Int Nickel Co Consolidated composite materials by powder metallurgy
DD209317A1 (en) * 1982-09-02 1984-04-25 Bernd Deja CONTACT MATERIAL FOR VACUUM SWITCHES AND METHOD OF MANUFACTURE
EP0469578A2 (en) * 1990-08-02 1992-02-05 Kabushiki Kaisha Meidensha Electrical contact material
EP0538896A2 (en) * 1991-10-25 1993-04-28 Kabushiki Kaisha Meidensha Process for forming contact material
US5689796A (en) * 1995-07-18 1997-11-18 Citizen Watch Co., Ltd. Method of manufacturing molded copper-chromium family metal alloy article
US5853083A (en) * 1995-12-28 1998-12-29 Fuji Electric Co., Ltd. Contact material for a vacuum circuit breaker and a method for manufacturing the same

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3785801A (en) * 1968-03-01 1974-01-15 Int Nickel Co Consolidated composite materials by powder metallurgy
DD209317A1 (en) * 1982-09-02 1984-04-25 Bernd Deja CONTACT MATERIAL FOR VACUUM SWITCHES AND METHOD OF MANUFACTURE
EP0469578A2 (en) * 1990-08-02 1992-02-05 Kabushiki Kaisha Meidensha Electrical contact material
EP0538896A2 (en) * 1991-10-25 1993-04-28 Kabushiki Kaisha Meidensha Process for forming contact material
US5689796A (en) * 1995-07-18 1997-11-18 Citizen Watch Co., Ltd. Method of manufacturing molded copper-chromium family metal alloy article
US5853083A (en) * 1995-12-28 1998-12-29 Fuji Electric Co., Ltd. Contact material for a vacuum circuit breaker and a method for manufacturing the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106312055A (en) * 2016-08-31 2017-01-11 陕西斯瑞新材料股份有限公司 Preparing method of copper-coated chromium alloy powder and copper-chromium contact
CN106312055B (en) * 2016-08-31 2018-06-05 陕西斯瑞新材料股份有限公司 Copper-clad evanohm powder and its copper chromium contact preparation method

Also Published As

Publication number Publication date
EP2191921B1 (en) 2013-01-09
EP2191921A3 (en) 2011-05-04
WO2010057619A3 (en) 2011-09-22
WO2010057619A2 (en) 2010-05-27

Similar Documents

Publication Publication Date Title
EP2492032B1 (en) Method for manufacturing a copper-based composite material for electrical contacts
JP4894008B2 (en) Method for producing MoNb-based sintered sputtering target material
JP5204124B2 (en) Method for repairing sputtering target
US8992826B2 (en) Method for producing a semifinished product and semifinished product for electrical contacts and contact piece
SE534273C2 (en) Steel product and manufacture of steel product through, among other things, sintering, high speed pressing and hot isost pressing
KR20030007448A (en) Powder-metallurgical method for producing high-density shaped parts
US20140356646A1 (en) Method for producing a semifinished product for electrical contacts and contact piece
EP2191921A2 (en) Process for producing a copper-chromium contact element for medium-voltage switchgear assemblies, and contact element itself
KR20160062411A (en) METHOD FOR PREPARING OF Ag-OXIDE BASED ELECTRICAL CONTACT MATERIAL FOR ELECTRIC SWITCH
EP3170589B1 (en) Method of additive manufacturing of a three dimensional part on a substrate followed by a step of removal of the substrate
US9101984B2 (en) High hardness, corrosion resistant PM Nitinol implements and components
KR101658381B1 (en) Method of manufacturing powder molded product and mixed powder for manufacturing powder molded product
KR20150028037A (en) Method for preparing of platinum-rodium-oxide based alloys materials
EP3187287B1 (en) Method for manufacturing electrode material
JP5310272B2 (en) Electrode contact member for vacuum circuit breaker and method for manufacturing electrode contact member for vacuum circuit breaker
KR101304758B1 (en) Process for Composite Materials of Nanostructured Metal Carbides-Intermetallic Compounds
US10086433B2 (en) Process for producing electrode material, and electrode material
CN1279297A (en) Process for preparing TiNi-base marmem directly from elements powder
WO2016158345A1 (en) Method for manufacturing cylindrical sputtering targets
KR20180114173A (en) METHOD FOR MANUFACTURING TONNECT MATERIAL BASED ON TIN OXIDE OR COLD ZINC OXIDE AND CONTACT MATERIAL
JP5754603B2 (en) Method for regenerating target for film formation
US6821313B2 (en) Reduced temperature and pressure powder metallurgy process for consolidating rhenium alloys
EP2268434A1 (en) A method for making composite sputtering targets and the targets made in accordance with the method
CN104475736A (en) After-treatment method of additive manufactured ceramic part
KR20150028002A (en) METHOD FOR PREPARING OF Ag-OXIDE BASED ELECTRICAL CONTACT MATERIAL

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA MK RS

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA MK RS

17P Request for examination filed

Effective date: 20111104

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

RIC1 Information provided on ipc code assigned before grant

Ipc: H01H 33/66 20060101ALI20120313BHEP

Ipc: B22F 1/00 20060101AFI20120313BHEP

Ipc: H01H 1/02 20060101ALI20120313BHEP

Ipc: B22F 1/02 20060101ALI20120313BHEP

Ipc: C22C 1/04 20060101ALI20120313BHEP

RTI1 Title (correction)

Free format text: PROCESS FOR PRODUCING A COPPER-CHROMIUM CONTACT ELEMENT FOR MEDIUM-VOLTAGE SWITCHGEAR ASSEMBLIES

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RIN1 Information on inventor provided before grant (corrected)

Inventor name: GENTSCH, DIETMAR, DR.-ING.

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 592436

Country of ref document: AT

Kind code of ref document: T

Effective date: 20130115

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602008021474

Country of ref document: DE

Effective date: 20130307

REG Reference to a national code

Ref country code: NL

Ref legal event code: T3

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130109

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130409

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130109

Ref country code: BE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130109

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130109

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130420

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130509

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130409

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130109

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130109

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130410

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130509

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130109

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130109

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130109

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130109

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130109

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130109

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130109

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130109

26N No opposition filed

Effective date: 20131010

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130109

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602008021474

Country of ref document: DE

Effective date: 20131010

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20131121

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130109

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20131121

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20131121

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130109

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20081121

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20131121

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130109

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 8

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 602008021474

Country of ref document: DE

Representative=s name: SCHMIDT, KARL MICHAEL, DIPL.-PHYS., DE

Ref country code: DE

Ref legal event code: R081

Ref document number: 602008021474

Country of ref document: DE

Owner name: ABB SCHWEIZ AG, CH

Free format text: FORMER OWNER: ABB TECHNOLOGY AG, ZUERICH, CH

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 9

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 10

REG Reference to a national code

Ref country code: CH

Ref legal event code: PFUS

Owner name: ABB SCHWEIZ AG, CH

Free format text: FORMER OWNER: ABB TECHNOLOGY AG, CH

REG Reference to a national code

Ref country code: NL

Ref legal event code: PD

Owner name: ABB SCHWEIZ AG; CH

Free format text: DETAILS ASSIGNMENT: CHANGE OF OWNER(S), MERGE; FORMER OWNER NAME: ABB TECHNOLOGY AG

Effective date: 20180115

REG Reference to a national code

Ref country code: AT

Ref legal event code: PC

Ref document number: 592436

Country of ref document: AT

Kind code of ref document: T

Owner name: ABB SCHWEIZ AG, CH

Effective date: 20180507

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

Owner name: ABB SCHWEIZ AG, CH

Effective date: 20180912

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20181120

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20181121

Year of fee payment: 11

Ref country code: DE

Payment date: 20181120

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20181120

Year of fee payment: 11

Ref country code: FR

Payment date: 20181123

Year of fee payment: 11

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 602008021474

Country of ref document: DE

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: NL

Ref legal event code: MM

Effective date: 20191201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20191130

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20191130

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 592436

Country of ref document: AT

Kind code of ref document: T

Effective date: 20191121

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20191201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200603

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20191130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20191121