EP1818638B1 - Dispositif destiné à la surveillance d'un four à induction et four à induction - Google Patents

Dispositif destiné à la surveillance d'un four à induction et four à induction Download PDF

Info

Publication number
EP1818638B1
EP1818638B1 EP07002872A EP07002872A EP1818638B1 EP 1818638 B1 EP1818638 B1 EP 1818638B1 EP 07002872 A EP07002872 A EP 07002872A EP 07002872 A EP07002872 A EP 07002872A EP 1818638 B1 EP1818638 B1 EP 1818638B1
Authority
EP
European Patent Office
Prior art keywords
yoke
coil
insulation
induction
yokes
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.)
Active
Application number
EP07002872A
Other languages
German (de)
English (en)
Other versions
EP1818638A3 (fr
EP1818638A2 (fr
Inventor
Manfred Dr.-Ing. Hopf
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.)
Saveway & Co KG GmbH
Original Assignee
Saveway & Co KG GmbH
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 Saveway & Co KG GmbH filed Critical Saveway & Co KG GmbH
Priority to PL07002872T priority Critical patent/PL1818638T3/pl
Publication of EP1818638A2 publication Critical patent/EP1818638A2/fr
Publication of EP1818638A3 publication Critical patent/EP1818638A3/fr
Application granted granted Critical
Publication of EP1818638B1 publication Critical patent/EP1818638B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/22—Furnaces without an endless core
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B14/00—Crucible or pot furnaces
    • F27B14/06—Crucible or pot furnaces heated electrically, e.g. induction crucible furnaces with or without any other source of heat
    • F27B14/061—Induction furnaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B14/00—Crucible or pot furnaces
    • F27B14/08—Details peculiar to crucible or pot furnaces
    • F27B14/10—Crucibles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B14/00—Crucible or pot furnaces
    • F27B14/08—Details peculiar to crucible or pot furnaces
    • F27B14/14—Arrangements of heating devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B14/00—Crucible or pot furnaces
    • F27B14/08—Details peculiar to crucible or pot furnaces
    • F27B14/20—Arrangement of controlling, monitoring, alarm or like devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D19/00—Arrangements of controlling devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D21/00—Arrangements of monitoring devices; Arrangements of safety devices
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/22—Furnaces without an endless core
    • H05B6/24—Crucible furnaces
    • H05B6/28—Protective systems

Definitions

  • the invention relates to a method for monitoring an induction furnace according to the features of the preamble of patent claim 1 and to an induction furnace with the features of the preamble of claim 4.
  • the induction coil In such induction furnaces, which are used for the molten metal, the induction coil consists of a hollow profile made of copper, which is traversed for the purpose of cooling water, in order to meet the high thermal load of the induction coil.
  • the coil voltage is up to 3000 V in today's induction furnaces, which corresponds to a winding voltage of about 125 V.
  • the frequency of the supply voltage varies depending on the application and size of the furnace, it is about 200 Hz for applications for melting iron materials with furnace sizes in the range of 10 t.
  • a power density of 1 MW / t is installed, accordingly at a 10 t Ovens provided a capacity of 10 MW.
  • the electrical insulation of the induction coil must be designed accordingly.
  • the coil turns against each other and on the other hand, the coil must be sufficiently insulated from the ground potential, which rests in the known designs on the furnace frame and the yokes. in this connection
  • Problems occur due to the electromagnetic principle of action of the induction furnaces with the parameters described above, because it comes to extreme loads on the electrical insulation between the coil and the yoke yokes by vibration.
  • This insulation consists of the coil insulation, by means of which the coil turns are insulated from each other, and of a multilayer insulation structure between the induction coil and each yoke.
  • the operational thermal loads as well as the mechanical stresses due to thermal expansion of the crucible material lead on the one hand and by breaking or delivery of the crucible to the other to further stresses of the coil yoke insulation.
  • moisture present promotes faster aging of the coil yoke insulation, which penetrates into the insulation, especially during new deliveries of the furnace.
  • the earth fault monitoring does not indicate over which path and at which point the induction coil is earthed.
  • the earth fault can be initiated via the melt which reaches the coil.
  • the ground fault can be present over the worn insulation layers towards the grounded yoke.
  • the invention is therefore an object of the invention to provide a monitoring system for an induction furnace of the type in question in order to locate a fault in the coil yoke insulation easier and faster. This object is achieved with the method features of claim 1 and with the subject features of claim 4.
  • Error detection can be done in two ways.
  • the yoke construction is allowed to remain, in which case the yokes remain grounded.
  • This has the advantage that the most accessible arranged, not touch-protected yokes can not lead a dangerous electrical potential. So constructive changes to the induction furnace are not required.
  • an indicator in the form of a wire electrode is inserted, which may be designed as a comb-shaped electrode or a meandering electrode.
  • the wire electrode With a multi-layered structure of the insulation between the coil insulation and each yoke, the wire electrode can be positioned between two layers, such as between two layers of mica insulation.
  • the wire thickness of the indicator is so low that the electromagnetic field can not heat the sensor wire. Due to the areal arrangement of the indicator wire, the entire area of a yoke is monitored, and it is also possible to monitor partial areas of a yoke by providing a plurality of such indicators spatially separate from one another.
  • the detection of an insulation defect between the induction coil and each individual yoke is carried out by measuring the insulation resistance, ie the electrical resistance between the coil and the indicator and / or the indicator and the yoke. Since these measurements are made on each individual yoke, a defect of the coil yoke insulation can be localized, and it can be on the yoke in question or on one Part of this yoke be limited. Due to the exposed arrangement of the indicator not only an early error detection but also the timely perception of an impending error is possible. Thus, the induction coil with the indicator may already be in contact before it comes to ground fault as a result of complete destruction of the coil yoke insulation.
  • a voltage measurement between the indicator and the coil or the grounded yoke can take place, it can also be a current flow from the coil to the indicator and / or a current flow between the indicator and the yoke detected and evaluated. Furthermore, by measuring the individual values and by evaluating the absolute values of the measured values, the measuring method makes it possible to determine whether there is a ground fault due to moisture or a saturated ground fault. By varying the frequency of the measuring voltage, it is certainly possible to distinguish a moisture lock from a metallic short.
  • the damaged area can now be limited to the earth by evaluating the leakage current at each individual yoke, which is located in the area of the relevant yoke. This evaluation of the leakage currents is recorded, and by comparing the individual leakage currents of the yokes and by evaluating the level of the leakage can be further identified whether it is leakage due to moisture, as they are unavoidable in the re-delivery, or as a result a massive ground fault.
  • the invention makes it possible to carry out targeted repairs as a result of the localization of the breakdown of the coil yoke insulation, namely at the localized defect. This results in savings not only due to a reduced repair costs, but also by a shorter repair time, which shortens the production loss.
  • the induction furnace according to Fig. 1 has a crucible 2 for receiving a molten metal 1, which consists of a refractory material. On the outside, the crucible 2 surrounds a so-called coil guard 3, on which an induction coil 4 is arranged coaxially to the crucible 2 on the outside.
  • the induction coil 4 shows Fig. 2 in which one recognizes one of the coil turns 4.1 in full cross-sectional representation.
  • the coil turns 4.1 consist of a hollow copper profile, so that in the interior of each coil turn 4.1, a cooling channel 4.2 is formed, is passed through the cooling water.
  • Fig. 1 goes on show that on the outside of the induction coil 4 yokes 5 are arranged, which are aligned axially parallel to the induction coil 4 and the - like the Figures 5 and 9 show - are distributed in the circumferential direction around the induction coil 4 around evenly.
  • the individual yokes 5 have distances from each other and are bent so that they conform to the induction coil 4 in the circumferential direction.
  • the yokes 5 are braced against the induction coil 4, this is especially the Figures 3 and 8th , Serve with clamping devices 6 with clamping screws 6.1, which are supported to the outside on the outer steel furnace frame 6.2.
  • the clamping screws 6.1 act on the associated yoke 5 in the radial direction of the induction coil 4.
  • Fig. 1 nor the electrical supply device 7 for operating the induction coil 4, to which further a Erdschlußwumbleter 8 is connected, which responds in the event of a ground fault of the coil 4.
  • the induction furnace according to the invention is equipped with a monitoring system, which will be discussed in more detail below.
  • Fig. 2 and Fig. 4 in a further enlarged view illustrate the structure of the electrical insulation between the induction coil 4 and each of the yokes 5.
  • a coil yoke insulation 9 is provided, which includes a coil insulation 9.1, by means of the coil turns 4.1 are insulated from each other.
  • a voltage in the order of 3,000 volts Between the induction coil 4 and each grounded yoke 5 is in operation a voltage in the order of 3,000 volts.
  • An insulation structure 9.2 is designed thereon, which consists of several layers, in particular of mica layers.
  • a voltage, a current or a resistance is measured between each indicator 11 and the yoke 5 on the one hand and one of the coil windings 4.1 on the other hand, corresponding display devices 10.1 are provided.
  • the indicators 11 and the display devices 10.1 are each part of a sensor device 10, and each one of these sensor devices 10 is associated with each of the yokes 5, such as Fig. 5 shows. Becomes a ground fault of the induction coil 4 or is such a ground fault already, this is signaled by the relevant sensor device 10, and one thus obtains the immediate indication in the yoke 5 which threatens a breakdown of the coil yoke insulation 9 and can take the necessary countermeasures at the relevant point.
  • the location of a damaged area can be further limited by providing two or more of the indicators 11 in the region of one of the yokes 5, and the sensor device 10 is equipped such that each of the indicators 11 is detected.
  • the yokes are 5 electrically insulated against the ground potential leading furnace rack 6.2 that a ground fault can not be done via the clamping screws 6.1 of the clamping device 6. Therefore, an electrical insulation 12 in the form of pressure and heat-resistant insulating pieces is provided between each of the yokes 5 and the furnace frame 6.2, which are arranged between the clamping screws 6.1 and the associated yoke 5.
  • Each yoke 5 is connected to the oven rack 6.2 by means of its own ground line 13, and each of these ground lines 13 is in this case part of the sensor device 10, by means of a ground fault can be detected at the respective yoke 5.
  • the sensor device 10 on an ammunition A which is inserted either in the ground line 13 of each yoke 5 or at least connectable thereto. This depends on whether you are either appropriate Fig. 9 on each of the ground lines 13 permanently a sensor device 10 provides or in the case of one of Erd gleichwumbleter 8 ( Fig. 1 ) earth fault successively checked the individual ground lines 13 to a flowing over it leakage current successively.
  • current clamps are suitable, and depending on the type of training of the sensor device 10, it may be necessary to insert a shunt in each of the earth lines 13.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Furnace Details (AREA)
  • General Induction Heating (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)
  • Control Of High-Frequency Heating Circuits (AREA)

Claims (7)

  1. Procédé destiné à la surveillance d'un four à induction, qui présente une bobine d'inductance (4), sur le côté extérieur de laquelle portent des culasses (5), distancées les unes des autres dans le sens du pourtour de la bobine, lesquelles sont pressées contre ladite bobine au moyen de dispositifs de serrage, qui prennent appui sur le bâti du four, une isolation électrique bobine-culasse (9) étant prévue entre la culasse et la bobine,
    caractérisé en ce que,
    sur chaque culasse individuelle, indépendamment des autres culasses, un changement de son état d'isolation électrique par rapport à la bobine d'inductance et / ou du potentiel terrestre est saisie et que la localisation d'un endroit défectueux en formation ou déjà existant dans l'isolation bobine-culasse est ensuite effectuée.
  2. Procédé selon la revendication 1,
    caractérisé en ce que,
    entre chaque culasse et la bobine d'inductance et / ou le potentiel terrestre, est effectuée une mesure de la résistance, de la tension et / ou du courant.
  3. Procédé selon revendication 1 ou 2,
    caractérisé en ce que
    l'écoulement d'un courant de fuite est surveillé entre chaque culasse et le potentiel terrestre, une isolation électrique étant prévue, dans ce but, entre chaque culasse et le bâti du four.
  4. Four à induction, avec une bobine d'inductance (4), sur le côté extérieur de laquelle portent des culasses (5), distancées les unes des autres dans le sens du pourtour de la bobine, lesquelles sont pressées contre ladite bobine au moyen de dispositifs de serrage, qui prennent appui sur le bâti du four, une isolation électrique bobine-culasse (9) étant prévue entre la culasse et la bobine,
    caractérisé en ce que,
    à chacune des culasses individuelles (5) est associé un dispositif de détection (10), avec lequel est saisi tout changement de résistance de l'isolation bobine-culasse (9) dans la zone de chaque culasse individuelle (5) et / ou l'écoulement d'un courant de fuite entre chaque culasse individuelle (5) et le potentiel terrestre.
  5. Four à induction selon la revendication 4,
    caractérisé en ce que
    le dispositif de détection (10) présente un indicateur (11), qui consiste en un conducteur électrique intégré dans l'isolation bobine-culasse (9), au moyen duquel est détecté un signal dépendant de la résistance, de la tension et / ou du courant, lequel est évalué dans le dispositif de détection (10).
  6. Four à induction selon la revendication 5,
    caractérisé en ce que
    le conducteur, intégré, en tant qu'indicateur (11), dans l'isolation bobine-culasse (9), est réalisé en tant que conducteur (11.1) en forme de méandre ou en tant que conducteur en forme de peigne (11.2).
  7. Four à induction selon la revendication 4,
    caractérisé en ce que,
    le bâti du four (6.2) est mis à la terre, et qu'entre chaque culasse (5) et ledit châssis du four (6.2) est prévue une isolation électrique (12), chaque culasse (5) étant individuellement reliée au potentiel terrestre, au moyen d'une ligne de terre (13), et qu'un ampèremètre (A), au moins, est prévu, lequel peut être raccordé à cette ligne de terre (13) ou intégré dans celle-ci.
EP07002872A 2006-02-10 2007-02-10 Dispositif destiné à la surveillance d'un four à induction et four à induction Active EP1818638B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL07002872T PL1818638T3 (pl) 2006-02-10 2007-02-10 Sposób kontroli pieca indukcyjnego i piec indukcyjny

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006006524A DE102006006524B4 (de) 2006-02-10 2006-02-10 Verfahren zur Überwachung eines Induktionsofens und Induktionsofen

Publications (3)

Publication Number Publication Date
EP1818638A2 EP1818638A2 (fr) 2007-08-15
EP1818638A3 EP1818638A3 (fr) 2008-01-23
EP1818638B1 true EP1818638B1 (fr) 2009-01-14

Family

ID=38093296

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07002872A Active EP1818638B1 (fr) 2006-02-10 2007-02-10 Dispositif destiné à la surveillance d'un four à induction et four à induction

Country Status (4)

Country Link
EP (1) EP1818638B1 (fr)
AT (1) ATE421074T1 (fr)
DE (2) DE102006006524B4 (fr)
PL (1) PL1818638T3 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102080931B (zh) * 2010-12-21 2012-12-05 黄喜锤 铝压铸用高频感应熔铝炉
CN102628649A (zh) * 2012-05-04 2012-08-08 苏州罗卡节能科技有限公司 一种中频感应炉
DE102013002796B4 (de) 2012-11-09 2015-05-07 Abp Induction Systems Gmbh Verfahren zur Erdschlusserkennung in Mehrofenanlagen und eine Mehrofenanlage zur Durchführung eines derartigen Verfahrens
DE102013002795C5 (de) * 2012-11-09 2018-07-19 Abp Induction Systems Gmbh Verfahren und Vorrichtung zur Erdschlussermittlung bei einem Induktionsofen sowie Induktionsofen
EP2811248B1 (fr) 2013-06-06 2019-05-08 Siemens Aktiengesellschaft Surveillance de l'isolation d'un circuit de chauffage électrique pour un four de fusion et procédé de surveillance
CA3029847A1 (fr) * 2016-07-25 2018-02-01 Inductotherm Corp. Four a induction electrique dote d'un systeme de detection de l'usure du revetement
DE102017221848A1 (de) * 2017-12-04 2019-06-06 Sms Group Gmbh Überwachungsverfahren und Überwachungsvorrichtung für elektrische Isolierungen eines industriellen Elektroofens, sowie industrieller Elektroofen
DE102019006960A1 (de) * 2019-10-07 2021-04-08 ABP lnduction Systems GmbH Verfahren zur Überwachung des Funktionszustandes eines Induktionstiegelofens und Induktionstiegelofen

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1199930B (de) * 1962-10-11 1965-09-02 Bbc Brown Boveri & Cie Vorrichtung zur Signalisierung entstehender Schmelztiegeldurchbrueche
US4525665A (en) * 1982-08-06 1985-06-25 Smalley Daniel S Induction furnace monitor
US4612498A (en) * 1982-08-06 1986-09-16 Smalley Daniel S Induction furnace fault locator
DE4120205A1 (de) * 1991-06-19 1992-12-24 Saveway Gmbh Vorwarneinrichtung fuer induktionsschmelzoefen
US6148018A (en) * 1997-10-29 2000-11-14 Ajax Magnethermic Corporation Heat flow sensing system for an induction furnace
ATE511624T1 (de) * 2002-08-06 2011-06-15 Lios Technology Gmbh Ofen sowie verfahren und system zur überwachung von dessen betriebsbedingungen

Also Published As

Publication number Publication date
EP1818638A3 (fr) 2008-01-23
PL1818638T3 (pl) 2009-06-30
DE102006006524B4 (de) 2008-11-27
DE102006006524A1 (de) 2007-08-23
ATE421074T1 (de) 2009-01-15
DE502007000370D1 (de) 2009-03-05
EP1818638A2 (fr) 2007-08-15

Similar Documents

Publication Publication Date Title
EP1818638B1 (fr) Dispositif destiné à la surveillance d'un four à induction et four à induction
EP2304866B1 (fr) Procédé et système pour contrôler le courant de palier d'une machine électrique
CH670519A5 (fr)
EP0519231B1 (fr) Installation d'avertissement pour un four de fusion à induction
DE102013002795C5 (de) Verfahren und Vorrichtung zur Erdschlussermittlung bei einem Induktionsofen sowie Induktionsofen
EP0541019B1 (fr) Procédé et dispositif pour surveiller l'épaisseur d'un creuset céramique d'un four à induction
EP1391672B1 (fr) Dispositif de surveillance pour des fours de fusion
EP3492851B1 (fr) Procédé de surveillance et dispositif de surveillance pour isolations électriques d'un four électrique industriel ainsi que four électrique industriel
EP3864681B1 (fr) Module transformateur de courant pour une installation de commutation et installation de commutation correspondante
EP3101403B1 (fr) Systeme de surveillance destine a determiner des erreurs dans des conduites
EP3104373A1 (fr) Cable de courant de haute intensite et procede de determination du degre d'usure de cables de courant de haute intensite
EP1728895A1 (fr) Méthode de surveillance pour détecter l'approche d'un corps conductive au pipe-line pour fluides cathodiquement protégée
DE19602249A1 (de) Vorwarneinrichtung für Induktionsschmelzöfen
WO2017186204A1 (fr) Dispositif et procédé pour la détection d'une détérioration sur un revêtement intérieur d'un récipient
DE102021133072A1 (de) Verfahren zur Messung des Verschleißzustandes von Induktionstiegelöfen
DE202008009317U1 (de) Dichtungsanordnung für eine Flanschverbindung
DE102012025273A1 (de) Sekundärtransformatoreinrichtung und Kraftfahrzeug
DE102004020724B3 (de) Verfahren zum Erkennen von Defekten in Blechsegmenten bei elektrischen Generatoren sowie Motoren
EP1430297B1 (fr) Procede et dispositif de controle d'empilements de toles de fer feuilletees de machines electriques a la recherche de courts-circuits entre toles
DE202008006899U1 (de) Vorrichtung zum Detektieren von Temperaturen in Bereichen einer technischen Anlage
DD280802A1 (de) Vorrichtung zur laengennormierung einer barre an einer kettenwirkmaschine, insbesondere naehwirkmaschine
DE1623122C (de) Vorrichtung zum Ermitteln von Spanen in flussigen oder gasformigen Medien
DE3431443A1 (de) Verfahren und vorrichtung zur frueherkennung von elektrisch leitenden niederschlaegen im inneren eines behaelters, rohrleitungssystems oder dergleichen
DE102006015050A1 (de) Metallpartikeldetektorensystem
DE102013002796A1 (de) Vorrichtung zur Erdschlusserkennung in Mehrofenanlagen und Mehrofenanlage

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 HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK YU

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 HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK YU

RIC1 Information provided on ipc code assigned before grant

Ipc: H05B 6/50 20060101ALI20071217BHEP

Ipc: F27B 14/20 20060101ALI20071217BHEP

Ipc: H05B 6/06 20060101AFI20071217BHEP

Ipc: H05B 6/28 20060101ALI20071217BHEP

17P Request for examination filed

Effective date: 20080402

RIC1 Information provided on ipc code assigned before grant

Ipc: F27B 14/20 20060101AFI20080819BHEP

Ipc: H05B 6/50 20060101ALI20080819BHEP

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

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 HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REF Corresponds to:

Ref document number: 502007000370

Country of ref document: DE

Date of ref document: 20090305

Kind code of ref document: P

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090114

REG Reference to a national code

Ref country code: PL

Ref legal event code: T3

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

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: 20090114

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: 20090114

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: 20090114

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: 20090425

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

BERE Be: lapsed

Owner name: SAVEWAY G.M.B.H. & CO. KG

Effective date: 20090228

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

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: 20090414

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: 20090114

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: 20090615

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: 20090514

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 NON-PAYMENT OF DUE FEES

Effective date: 20090228

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

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: 20090114

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: 20090114

Ref country code: IE

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: 20090114

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: 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: 20090114

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: 20090114

26N No opposition filed

Effective date: 20091015

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: 20090414

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

Ref country code: BE

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

Effective date: 20090228

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

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: 20090415

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

Ref country code: LU

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

Effective date: 20090210

PGRI Patent reinstated in contracting state [announced from national office to epo]

Ref country code: IT

Effective date: 20110501

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

Effective date: 20090715

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: 20090114

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: 20090114

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Ref country code: CH

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

Effective date: 20110228

Ref country code: LI

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

Effective date: 20110228

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: FR

Ref legal event code: PLFP

Year of fee payment: 11

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

Ref country code: FR

Payment date: 20170209

Year of fee payment: 11

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

Ref country code: PL

Payment date: 20170118

Year of fee payment: 11

Ref country code: AT

Payment date: 20170217

Year of fee payment: 11

Ref country code: GB

Payment date: 20170202

Year of fee payment: 11

Ref country code: CZ

Payment date: 20170130

Year of fee payment: 11

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

Ref country code: IT

Payment date: 20170224

Year of fee payment: 11

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 421074

Country of ref document: AT

Kind code of ref document: T

Effective date: 20180210

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

Effective date: 20180210

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

Ref country code: CZ

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

Effective date: 20180210

Ref country code: AT

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

Effective date: 20180210

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20181031

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: 20180210

Ref country code: IT

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

Effective date: 20180210

Ref country code: FR

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

Effective date: 20180228

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 NON-PAYMENT OF DUE FEES

Effective date: 20180210

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

Ref country code: DE

Payment date: 20230126

Year of fee payment: 17

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230508