EP0010252B1 - Dispositif pour l'empilage automatique de tôles en vue de la formation de noyaux de fer feuilletés - Google Patents

Dispositif pour l'empilage automatique de tôles en vue de la formation de noyaux de fer feuilletés Download PDF

Info

Publication number
EP0010252B1
EP0010252B1 EP79103866A EP79103866A EP0010252B1 EP 0010252 B1 EP0010252 B1 EP 0010252B1 EP 79103866 A EP79103866 A EP 79103866A EP 79103866 A EP79103866 A EP 79103866A EP 0010252 B1 EP0010252 B1 EP 0010252B1
Authority
EP
European Patent Office
Prior art keywords
stores
supply
stack
row
lifting devices
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP79103866A
Other languages
German (de)
English (en)
Other versions
EP0010252A1 (fr
Inventor
Siegfried Ing. Grad. Holzwarth
Karl Wende
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.)
BBC Brown Boveri AG Germany
Original Assignee
BBC Brown Boveri AG Germany
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 BBC Brown Boveri AG Germany filed Critical BBC Brown Boveri AG Germany
Priority to AT79103866T priority Critical patent/ATE1123T1/de
Publication of EP0010252A1 publication Critical patent/EP0010252A1/fr
Application granted granted Critical
Publication of EP0010252B1 publication Critical patent/EP0010252B1/fr
Expired legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0206—Manufacturing of magnetic cores by mechanical means
    • H01F41/0233—Manufacturing of magnetic circuits made from sheets

Definitions

  • the present invention relates to a device for the automatic layering of sheet metal to laminated iron cores for transformers and choke coils, with storage magazines for sheet metal blanks, with at least one horizontally displaceable stacking magazine, with a transport carriage which can be moved horizontally over the magazines and to which lifters which can be switched on and off are attached , with drives for moving the trolley and for lifting and lowering the lifters, as well as with end contacts for safe sequence control of the shifting process.
  • the known layering devices have magazines for receiving the sheet metal blanks to be layered as well as magazines for receiving the assembled core packages.
  • a known device has, for example, a storage magazine for receiving the E-shaped and the I-shaped sheet metal blanks.
  • the bottom sheet in each case is removed from these magazines and nested with the aid of slides into the coil former lying on the stacking magazine.
  • a device for layering iron cores for transformers and choke coils from single sheets in which sheet lifting units containing gripping elements are attached in the region of the ends of the arms of a centrally mounted turntable or rotating star, with which stacked stacks in one or more layers in the core form Sheets can be lifted off and, after rotating the turnstile, placed on the shift table located at another location on the turntable.
  • the gripper elements of the sheet metal lifting units can be embodied by suction devices or by electromagnets.
  • the suction cups or electromagnets are arranged to be elastically displaceable in the vertical direction.
  • the gripping elements are arranged at different heights so that the sheet to be lifted is first lifted in a defined area in an end region and the lifting process thus initiated continues evenly over the entire length of the sheet. In this way, the adhesive and frictional forces acting between the sheets lying on top of one another can be overcome and a reliable lifting of the uppermost sheet layer can be ensured. In addition, spreading magnets can be attached in the area of the end faces of the sheet metal stack, which cause the upper sheet metal layers to fan out.
  • the top sheet metal gripped by the gripper elements of the slewing ring is placed on a shift table after rotation of the slewing ring, where the sheets are fixed with the help of stud bolts during the shifting process.
  • the layer table is designed as a roller conveyor for further transport of the finished iron cores.
  • the storage tables are designed as perforated plates.
  • adjustable stop strips corresponding to the core profile are arranged on the supply tables, which are fastened by means of bolts and can be removed from the finished stacked sheet metal after rotation about the bolts.
  • the layer table can be displaced in the vertical direction by means of a further electric motor and thus enables the surfaces of all stacks to always be in alignment during the entire layering process.
  • the core stack is then rolled away on the roller conveyor and a new stacking process begins.
  • the present invention is therefore based on the object of improving a device for the automatic layering of laminated iron cores of the type known from DE-B-12 68 719 in such a way that a simultaneous layering of several core stacks from the sheet metal blanks contained in several magazines is possible that an uninterrupted stratification is possible and that the supply mag zine can be filled with any amount of sheet metal at any time.
  • the number of storage magazines corresponds to the number of sheet metal blanks to be layered, that the storage magazines are arranged in at least one row one behind the other, that the stacking magazines are arranged one behind the other on an endless conveyor belt running next to the row of storage magazines and parallel to this are arranged in such a way that the number of stackable magazines on the conveyor belt corresponds to at least the number of storage magazines in the row, and that a cyclically operating drive for the conveyor belt is present.
  • the storage magazines are preferably arranged in two rows one behind the other, the stacking magazines run between the storage magazines, the number of stacking magazines corresponds at least to the number of pairs of storage magazines, the lifters which can be switched on and off are fastened to both ends of the transport carriage and are the ones of each row of storage magazines assigned rows of jacks can be raised and lowered independently of each other.
  • the overall length of the automatic stacking device can be reduced by half.
  • the layering process is further accelerated by the fact that each time the trolley is moved, sheets are taken from the storage magazines and sheets are placed in the stacking magazines.
  • the lifters are preferably designed as suction nozzles or as electromagnets.
  • fixed and movable stops are provided on each storage magazine in order to be able to adjust the magazines to sheet metal blanks of different sizes.
  • the movable stops of all storage magazines in a row are preferably adjustable jointly, as a result of which the adjustment work can be further shortened.
  • the suction nozzles are advantageously individually adjustable in position. In this way, sheet metal blanks of any shape can be stored in each storage magazine, as is technically necessary for the stacking process, and at the same time a secure engagement and lifting of the top sheet layer is possible.
  • the suction nozzles are preferably freely movable in the vertical direction. When the suction nozzle holder is lifted, they are pulled from their weight into the lowest position so that the sheet to be put down has the same height above the stacking magazine. Springs as in the prior art are not required.
  • the stacking magazines are preferably fastened on a chain conveyor and run in an endless loop through the layer device.
  • each stack magazine is inclined on its conveyor belt in two planes against the horizontal.
  • a fixed angle stop is attached to each stacking magazine so that its tip lies at the deepest corner of the magazine. In this way, it is achieved that the sheets that fall freely when placed down each slide with a corner into the stop angle, so that all sheets stacked one above the other have the desired spatial position relative to one another and one above the other.
  • each supply magazine is assigned an occupancy monitor which prevents the machine from continuing to run even if the operating personnel have forgotten to add sheet metal blanks.
  • Vacuum monitors are preferably assigned to the suction nozzles. These vacuum monitors respond immediately if one of the suction nozzles does not detect any sheet or if the sheet falls down again. The missing sheet can then be added manually by the operating personnel.
  • an occupancy monitor can also be assigned to the removal station of the stacking magazines.
  • the occupancy monitor With the help of the occupancy monitor, malfunctions of the machine, which can occur due to a stagnation when the finished core stack is removed, can be reliably avoided.
  • the layering process is interrupted until the storage magazine at the removal station is emptied.
  • Each row of suction nozzles can preferably be raised and lowered independently by means of hydraulic cylinders, in particular compressed air cylinders. This measure results in a reduction in the moving masses, which means that the layering process can be accelerated.
  • the transport carriage can advantageously be moved via an eccentric drive.
  • the eccentric drive is driven by an electric motor via a reduction gear.
  • the trolley can also be moved using a compressed air cylinder, a hydraulic cylinder or an electric linear motor.
  • spreading magnets are assigned to each supply magazine. These spreading magnets cause the sheet metal blanks lying in the storage magazines to repel each other at their front edge, which makes it easier to remove the top sheet from the sheet stack.
  • the stack magazines 5 are fed in cycles with the aid of a drive motor 7.
  • the suction nozzles 9, 10 are set relative to the transport carriage 8 such that in one end position of the transport carriage 8 the suction nozzles 9 are above the storage magazines 3, the suction nozzles 10 are above the stacking magazines 5, while in the other end position of the transport carriage the suction nozzles 10 are above the Storage magazines 4, the suction nozzles 9 are above the stack magazines 5.
  • flexible hoses are arranged, which lead to a (also not shown) vacuum manifold, which establishes the connection to a vacuum pump.
  • the bottoms of the stack magazines 5 fastened on the conveyor belt 6 are inclined in two planes, so that the sheets released by the suction nozzles always fall into the deepest corner against a fixed angular stop 17.
  • the storage magazines 3, 4 each have a fixed angle stop 18 and a movable angle stop 19.
  • the movable stops 19 of each row of storage magazines 3 and 4 can be adjusted jointly with the aid of a handwheel 20 and a threaded rod 21 in order to adapt them to magnetic cores of different sizes to enable.
  • the suction nozzles 9 are lowered onto the sheets 11 located in the storage magazines by means of the left hydraulic cylinders 16. Since the suction nozzles 9 are freely movable in their guides 22, different heights of the sheet metal stack 11 can be compensated for. The suction nozzles 9 are then raised to the position shown and the transport carriage 8 is pushed into its right end position. The suction nozzles 9 are now located above the stacking magazines 5 in the position which the suction nozzles 10 had previously occupied, while the suction nozzles 10 are now in the indicated position 10 'above the storage magazines 4.
  • the vacuum of the suction nozzles 9 now in the middle is switched off, so that the sheets fall freely into the stacking magazines 5 against the fixed stop angle 17.
  • the storage magazines 4 move forward step by step, the feed being able to take place after each depositing of a row of sheets or after every second depositing.
  • the core stacks are continuously finished during the passage through the coating zone of the device according to the invention and can be located outside the actual layer zone lying removal station 23 can be removed without the layering process itself being disturbed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Stacking Of Articles And Auxiliary Devices (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)

Claims (18)

1. Dispositif pour empiler automatiquement des tôles en des noyaux feuilletés en fer pour transformateurs et bobines d'arrêt, avec des magasins de réserve (4) pour des tôles découpées (11), avec des magasins d'empilement (5) mobiles horizontalement, avec un chariot de transport (8) déplaçable horizontalement audessus des magasins et sur lequel sont montés des organes de levage enclenchables et décienchables, avec des entraînements pour déplacer le chariot de transport (8) et pour soulever et abaisser les organes de levage, caractérisé par le fait que le nombre des magasins de réserve (3, 4) correspond au nombre des tôles cécoupées (11) devant être empilées, par le fait que les magasins de réserve (3,4) se succèdent en au moins une rangée, par le fait que les magasins d'empilement (5) se succèdent sur une bande sans fin transporteuse (6) passant près de la rangée de magasins de réserve (4) et parallèle à cette dernière, par le fait que le nombre des magasins d'empilement (5) en position d'attente sur la bande transporteuse (6) correspond au moins au nombre des magasins de réserve (4) de la rangée, et par le fait qu'un entraînement (7) fonctionnant par impulsions est prévu pour la bande transporteuse.
2. Dispositif selon la revendication 1, caractérisé par le fait que les magasins de réserve (3, 4) sont disposés en deux rangées, par le fait que les magasins d'empilement (5) se déplacent entre les rangées de magasins de réserve (3, 4), par le fait que des rangées d'organes de levage, mutuellement décalées d'une distance correspondant à la course de travail du chariot de transport (8) et associées à chaque fois à l'une des rangées de magasins de réserve, sont disposées sur le chariot de transport, et par le fait que les rangées d'organes le levage associées à chaque rangée de magasins de réserve (3, 4) sont commandables indépendamment les unes des autres.
3. Dispositif selon la revendication 1 ou 2, caractérisé par le fait que les organes de levage comportent des buses d'aspiration (9, 10).
4. Dispositif selon la revendication 1 ou 2, caractérisé par le fait que les organes de levage comportent des électro-aimants.
5. Dispositif selon au moins l'une des revendications 1 à 4, caractérisé par le fait que, à chaque magasin de réserve (3, 4), se trouvent des butées fixes (18) et mobiles (19) pour les tôles (10) devant y être empilées.
6. Dispositif selon la revendication 5, caractérisé par le fait que les butées mobiles (19) de tous les magasins de réserve (3, 4) d'une rangée sont réglables en commun.
7. Dispositif selon au moins l'une des revendications 1 à 6, caractérisé par le fait que la position des buses d'aspiration (9, 10) est réglable individuellement.
8. Dispositif selon au moins l'une des revendications 1 à 7, caractérisé par le fait que les buses d'aspiration (9, 10) sont mobiles dans le sens vertical sur les organes de lavage.
9. Dispositif selon au moins l'une des revendications 1 à 8, caractérisé par le fait que les magasins d'empilement (5) sont fixés à un convoyeur à chaîne (6).
10. Dispositif selon au moins l'une des revendications 1 à 9, caractérisé par le fait que le fond de chaque magasin d'empilement (5) est incliné dans deux plans par rapport à l'horizontale, et par le fait que, sur chaque magasin d'empilement (5), est fixée une butée fixe en équerre (17) dont la pointe se trouve dans la zone du coin du magasin (5) situé le plus bas.
11. Dispositif selon au moins l'une des revendications 1 à 10, caractérisé par le fait qu'un organe de contrôle l'occupation est associé à chaque magasin de réserve (3, 4).
12. Dispositif selon au moins l'une des revendications 1 à 11, caractérisé par le fait que des organes de contrôle de la dépression sont associés aux buses d'aspiration (9, 10).
13. Dispositif selon au moins l'une des revendications 1 à 12, caractérisé par le fait qu'un organe de contrôle d'occupation est associé au poste de prélèvement (14) des magasins d'empilement (5).
14. Dispositif selon au moins l'une des revendications 1 à 13, caractérisé par le fait que chaque rangée d'organes de levage (9, 10) peut être levée et abaissée au moyen de vérins à air comprimé ou de vérins hydrauliques (12).
15. Dispositif selon au moins l'une des revendications 1 à 14, caractérisé par le fait que le chariot de transport (8) peut être déplacé par l'intermédiaire d'un entraînement à excentrique (15).
16. Dispositif selon au moins l'une des revendications 1 à 15, caractérisé par le fait que le chariot de transport (8) peut être déplacé par un vérin à air comprimé ou un vérin hydraulique.
17. Dispositif selon au moins l'une des revendications 1 à 15, caractérisé par le fait que le chariot de transport (8) peut être déplacé par un moteur électrique linéaire.
18. Dispositif selon au moins l'une des revendications 1 à 17, caractérisé par le fait que des aimants d'écartement sont associés à chaque magasin de réserve (3, 4).
EP79103866A 1978-10-20 1979-10-09 Dispositif pour l'empilage automatique de tôles en vue de la formation de noyaux de fer feuilletés Expired EP0010252B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT79103866T ATE1123T1 (de) 1978-10-20 1979-10-09 Vorrichtung zum selbsttaetigen schichten von blechen zu lamellierten eisenkernen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2845676A DE2845676C2 (de) 1978-10-20 1978-10-20 Vorrichtung zum selbsttätigen Schichten von lamellierten Eisenkernen
DE2845676 1978-10-20

Publications (2)

Publication Number Publication Date
EP0010252A1 EP0010252A1 (fr) 1980-04-30
EP0010252B1 true EP0010252B1 (fr) 1982-05-26

Family

ID=6052646

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79103866A Expired EP0010252B1 (fr) 1978-10-20 1979-10-09 Dispositif pour l'empilage automatique de tôles en vue de la formation de noyaux de fer feuilletés

Country Status (3)

Country Link
EP (1) EP0010252B1 (fr)
AT (1) ATE1123T1 (fr)
DE (1) DE2845676C2 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3341285A1 (de) * 1983-11-15 1985-05-23 Messwandler-Bau Gmbh, 8600 Bamberg Blechschichtvorrichtung zum schichten von eisenkernen und verfahren zum schichten derartiger eisenkerne
IT1198971B (it) * 1984-11-30 1988-12-21 Elena In Legnaioli Giuli Impianto per il montaggio di nuclei magnetici per trasformatori elettrici ed altro
CN103559999B (zh) * 2013-10-30 2015-10-28 湖北三江航天红阳机电有限公司 一种变压器铁心自动垫片机器人装置
WO2019030349A1 (fr) * 2017-08-10 2019-02-14 Heinrich Georg Gmbh Maschinenfabrik Dispositif et procédé de fabrication de noyaux de transformateur
CN109256276B (zh) * 2018-11-30 2023-05-30 中节能西安启源机电装备有限公司 一种码料储料转运设备及其使用方法
CN110153023A (zh) * 2019-05-28 2019-08-23 苏州市福殷润自动化设备有限公司 一种芯片外观检测设备
IT202000003880A1 (it) * 2020-02-25 2021-08-25 L A E Lughese Attrezzature Per Lelettromeccanica S R L Metodo per la composizione di nuclei lamellari, sistema di presa per pacchi lamellari ed impianto di produzione nuclei lamellari
CN114684612A (zh) * 2020-12-30 2022-07-01 常熟普逸家居制品有限公司 一种床网磁力叠层装置
CN114121472B (zh) * 2021-11-15 2024-05-24 海宁华悦电子有限公司 一种铁氧体磁芯的烧结工艺
CN115043221B (zh) * 2022-05-27 2024-03-19 北京新特电气有限公司 收料成堆机及铁心堆组装系统
CN116525284B (zh) * 2023-06-29 2023-09-08 保定市卓泽电气科技有限公司 一种变压器铁芯压合装置

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2658268A (en) * 1948-07-31 1953-11-10 Rca Corp Apparatus for stacking transformer laminations within a coil window
DE952367C (de) * 1954-03-10 1956-11-15 Umberto Sassi Maschine fuer die automatische Einschichtung von Eisenblechen in Transformatoren u. dgl.
US2842838A (en) * 1955-10-24 1958-07-15 John M Macchione Apparatus for applying laminations
US3023493A (en) * 1958-11-25 1962-03-06 Gen Electric Apparatus and method for assembling stacked magnetic cores
DE1268719B (de) * 1964-03-10 1968-05-22 Licentia Gmbh Verfahren zum Schichten lamellierter Eisenkerne fuer Transformatoren und Drosselspulen groesserer Leistung
BE792926A (fr) * 1971-12-22 1973-04-16 Transformatoren Union Ag Dispositif pour empiler les toles de noyaux de fer feuilletes de transformateurs, bobines de self et appareils a induction analogues
CH531456A (de) * 1972-03-30 1972-12-15 Bbc Brown Boveri & Cie Stapeleinrichtung für eine Transformatorblechablänganlage
DD101244A1 (fr) * 1972-12-06 1973-10-20
US3855685A (en) * 1973-11-19 1974-12-24 B Nieder Lamination assembling apparatus
DE2427731B2 (de) * 1974-06-08 1980-10-16 Transformatoren Union Ag, 7000 Stuttgart Biechhubeinheit für eine Vorrichtung zum Schichten von Eisenkernen für Transformatoren aus Einzelblechen
DE2506681A1 (de) * 1975-02-17 1976-08-26 Heinrich Georg Maschinenfabrik Stapelvorrichtung fuer transformatorbleche
DE2525465C3 (de) * 1975-06-07 1978-05-11 Transformatoren Union Ag, 7000 Stuttgart Verfahren und Vorrichtung zum gleichzeitigen Abnehmen mehrerer Kernbleche von einem Stapel
DE2530309C3 (de) * 1975-07-08 1979-01-25 Waldemar Von 5340 Bad Honnef Lewin Vorrichtung zur Durchführung eines programmgesteuerten Herstellungsverfahrens von Schichtkernen für Transformatoren

Also Published As

Publication number Publication date
EP0010252A1 (fr) 1980-04-30
DE2845676A1 (de) 1980-04-30
ATE1123T1 (de) 1982-06-15
DE2845676C2 (de) 1983-09-08

Similar Documents

Publication Publication Date Title
DE69110265T2 (de) Vorrichtung zur Palettierung und Formgebung von Lasten.
DE1756814C3 (de) Vorrichtung zur Fortschaltung eines Dornförderers
DE3813729A1 (de) Stapeln von buendeln flachgefalteter schachteln aus wellpappe
DE3702965C2 (fr)
EP0010252B1 (fr) Dispositif pour l'empilage automatique de tôles en vue de la formation de noyaux de fer feuilletés
DE3835268A1 (de) Einrichtung zum entstapeln von paletten
EP0433755B1 (fr) Dispositif pour l'empilement vertical automatique de feuilles
DE102011117640B4 (de) Vorrichtung zur teilmanuellen Stapelung und Verladung von Blechformteilen an Pressen und Pressenstraßen, sowie Tischeinrichtung zur Verwendung in dieser Vorrichtung
DE2332988A1 (de) Verfahren und vorrichtung zum entladen und stapeln von gegenstaenden, insbesondere von ziegeln
DE2714352B2 (de) Vorrichtung zum selbsttätigen Ausziehen von Stapeln von fertigen, aus einer Kunststoffolie warmgeformten Hohlgegenständen aus einer Stapelstation
EP0132635B1 (fr) Dispositif de chargement pour objets élongés
DE19608956C1 (de) Vorrichtung zum Stapeln und Entstapeln von Gegenständen, insbesondere Warenbehältern oder Flaschenkästen
DE3107437A1 (de) Einrichtung zum beschicken eines werkzeugmaschinenauflagetisches
EP0416334B1 (fr) Dispositif pour désempiler, remplir et empiler des conteneurs qui sont égaux entre eux
EP1389597B1 (fr) Méthode et dispositif pour dépiler une pile d'articles disposés en plusieurs couches horizontales
DE3527746C2 (fr)
EP0602399B1 (fr) Dispositif de rayonnages pour l'entreposage d'éléments moulés en béton pendant leur durcissement
EP0032367B1 (fr) Dispositif pour l'empilage de matériaux empilables, notamment de panneaux de fibres minérales dans une ligne de production
DE3203757A1 (de) Vorrichtung zum zwischenstapeln von gegenstaenden
DE2525465A1 (de) Verfahren zum gleichzeitigen abnehmen mehrerer kernbleche von einem stapel
DE2363030C3 (de) Vorrichtung zum Beladen von Transportbehältern
DE102019130652A1 (de) Auflegevorrichtung
DE4238341A1 (en) Automatic palleting device for stackable articles - has continuously operating vertical conveyor picking up goods in any plane
DE1124880B (de) Maschine zum Stapeln von Flaschenkaesten oder zum Abtragen solcher Stapel
WO1980002415A1 (fr) Procede et dispositif pour palettiser des sacs

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

Designated state(s): AT BE CH FR GB IT NL SE

17P Request for examination filed
ITF It: translation for a ep patent filed
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): AT BE CH FR GB IT NL SE

REF Corresponds to:

Ref document number: 1123

Country of ref document: AT

Date of ref document: 19820615

Kind code of ref document: T

REG Reference to a national code

Ref country code: GB

Ref legal event code: 746

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

Ref country code: CH

Payment date: 19890810

Year of fee payment: 11

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

Ref country code: SE

Payment date: 19890814

Year of fee payment: 11

ITTA It: last paid annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19901010

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

Ref country code: CH

Effective date: 19901031

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Ref country code: GB

Payment date: 19940822

Year of fee payment: 16

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

Ref country code: FR

Payment date: 19940915

Year of fee payment: 16

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

Ref country code: AT

Payment date: 19940919

Year of fee payment: 16

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

Ref country code: BE

Payment date: 19940928

Year of fee payment: 16

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

Ref country code: NL

Payment date: 19941031

Year of fee payment: 16

EUG Se: european patent has lapsed

Ref document number: 79103866.4

Effective date: 19910603

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

Ref country code: GB

Effective date: 19951009

Ref country code: AT

Effective date: 19951009

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

Ref country code: BE

Effective date: 19951031

BERE Be: lapsed

Owner name: BROWN BOVERI & CIE A.G. MANNHEIM

Effective date: 19951031

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

Ref country code: NL

Effective date: 19960501

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

Effective date: 19951009

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

Ref country code: FR

Effective date: 19960628

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 19960501

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

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