EP0156674B1 - Procédé de positionnement et de saisie de demis ferrites pour noyau magnétique, et centreur mettant en oeuvre le procédé - Google Patents

Procédé de positionnement et de saisie de demis ferrites pour noyau magnétique, et centreur mettant en oeuvre le procédé Download PDF

Info

Publication number
EP0156674B1
EP0156674B1 EP85400293A EP85400293A EP0156674B1 EP 0156674 B1 EP0156674 B1 EP 0156674B1 EP 85400293 A EP85400293 A EP 85400293A EP 85400293 A EP85400293 A EP 85400293A EP 0156674 B1 EP0156674 B1 EP 0156674B1
Authority
EP
European Patent Office
Prior art keywords
ferrite
centering
centering device
plate
tongs
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
EP85400293A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0156674A1 (fr
Inventor
Jean Rousseau
Jean-Pierre Fourche
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.)
Videocolor SA
Original Assignee
Videocolor SA
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 Videocolor SA filed Critical Videocolor SA
Priority to AT85400293T priority Critical patent/ATE47251T1/de
Publication of EP0156674A1 publication Critical patent/EP0156674A1/fr
Application granted granted Critical
Publication of EP0156674B1 publication Critical patent/EP0156674B1/fr
Expired legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/236—Manufacture of magnetic deflecting devices for cathode-ray tubes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2209/00—Apparatus and processes for manufacture of discharge tubes
    • H01J2209/236—Manufacture of magnetic deflecting devices
    • H01J2209/2363—Coils
    • H01J2209/2366—Machines therefor, e.g. winding, forming, welding, or the like
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y10T29/49073—Electromagnet, transformer or inductor by assembling coil and core

Definitions

  • the present invention relates to a method of positioning and gripping a half ferrite for a magnetic core, in particular for a cathode ray tube deflector. It also relates to a centralizer implementing the method according to the invention. The invention finds application in particular in the field of manufacturing color television tubes.
  • the image is obtained by electronic deflection produced by a magnetic deflector.
  • a magnetic deflector conventionally comprises two coils whose fields are orthogonal respectively to create the line scan and the frame scan.
  • the deflector has a magnetic core to strengthen the magnetic field in the deflection region.
  • one of the two windings is toroidal in shape and is constituted by a stack of turns mounted on the magnetic core.
  • the toroidal winding is produced in two halves on two half ferrites which, when assembled together, constitute the wound magnetic core.
  • the magnetic core consists of an initially fractured ferrite - according to a relatively geometrical break plane.
  • each half ferrite is wound and the two half ferrites from the same ferrite are connected to each other and fixed by means of spring metal parts. It clearly appears that the magnetic axis of the core must be known with the greatest possible precision in order to achieve a suitable winding.
  • the magnetic core comprises on either side of the breakage plane precisely machined grooves which allow a marked capture of the ferrite so as to produce precise windings.
  • the grooves being made along the entire ferrite, these operations are relatively complex and significantly weaken the ferrite.
  • the removal of material is also relatively considerable which has the effect of modifying the geometry of the field lines.
  • the complexity of the problem to be solved comes from the accuracy sought which is of the order of a tenth of a millimeter and from the relative imprecision of the ferrite obtained by powder sintering.
  • the baking which gives ferrite its final magnetic properties causes a shrinkage of 20 to 30% of the initial dimensions.
  • the break plane must be a plane of symmetry and the broken surfaces are not and must not be geometrically plane so as to allow their precise reassembly.
  • Another type of solution according to the prior art consists in finding the magnetic axis of the ferrite by means of a particular assembly.
  • the ferrite is mounted on a succession of truncated cones tangent internally to its surface and this centering is transferred to plastic parts positioned on the assembly and glued at this stage on either side of the ferrite.
  • the plastic parts are then used as a reference for the winding operations and for setting the deflector. They also serve as gripping means for pliers for any manipulation of the ferrites. This type of solution is relatively expensive and moreover gives results which depend on the care taken in the operations of bonding plastic parts.
  • the ferrite carries on its annular edges notches of small dimensions which will serve as position markers for arranging the plastic parts.
  • the precision of the positioning operation depends on the external diameter of the ferrite support, known assemblies consisting of a fixed stop on which the notch is supported, a semi-circular bearing on which comes an external diameter of the ferrite and a movable stop coming to press on the opposite notch of the ferrite.
  • Such solutions require a preliminary sorting of the ferrites into homogeneous classes of precision and moreover do not allow the automation of the deflector production lines.
  • the object of the invention is to make it possible to restore the axis of the ferrite according to its geometric qualities, by avoiding sorting into different classes of ferrites and by allowing the manufacturing process to be automated.
  • the present invention relates to a method of positioning and gripping a half-core obtained by rupture along an axial plane of a ferrite magnetic core with symmetry of revolution, in particular for a deflector of a cathode ray tube, this half-core comprising, on its edges created by the rupture, means for locating the position of its axis of revolution, characterized in that the half-core is first applied to a positioning plate bearing on centering elements cooperating with said locating means, which are notches made during the molding of the core, then mobile centering means, which move perpendicular to the main plane of the positioning plate, are applied to the half-core to make its axis of revolution coincide with a centering axis of the positioning plate, and the half -core thus positioned is gripped by a gripping member which transfers the information from the centering axis to a geometric element of the gripping member.
  • a half ferrite is shown.
  • the general shape of the ferrite is a truncated cone.
  • the ferrite therefore consists of two vertices, the upper one consisting of a small circular crown, the other lower consisting of a large circular crown.
  • Ferrite is obtained by molding and sintering a suitable magnetic material.
  • a first method consists, by special mechanics, of winding wire with a shuttle which circulates around the flanks of the ferrite inside and outside of it.
  • the invention relates to another type of manufacturing according to a second method.
  • the ferrite is previously broken into two substantially equal halves.
  • each half ferrite is wound on a special machine then the two half ferrites wound are re-paired and assembled so as to constitute a toroidal winding on ferrite.
  • the winding must be carried out along a known magnetic axis which depends in particular on the geometry of the ferrite.
  • the half ferrite must be placed on the winder so that the position of the magnetic axis is suitable. It is therefore necessary that each half ferrite keeps the memory of the position of the magnetic axis of the ferrite. Since the ferrite is a body of revolution, the central axis of the ferrite can be chosen as the magnetic axis of the ferrite wound in any plane passing through diameters of the upper and lower edges of the truncated cone ferrite.
  • the break plane By making incipient fractures at the intersection of the edges of the ferrite and the future break plane.
  • the geometrical location of these fracture primers makes it possible to memorize the position information of the central axis of the ferrite.
  • the incipient fractures are produced by notch molding in the manufacture of ferrite.
  • FIG. 1 a half ferrite 1 is shown, the central axis 3 of which is in the break plane 2. It is noted that the position of this axis 3 is midway between the notches 4 and 6 of the semicircle constituting the upper edge and notches 5 and 7 of the lower edge.
  • the half ferrite thus carries the position information of the central axis 3.
  • the fractured edges which are shown smooth in the breakage plane 3, are in fact fairly irregular surfaces since they come from a fracture of a material sintered. This characteristic will require that the half ferrites coming from the same broken ferrite be re-paired so that the irregularities of the fractured edges correspond.
  • the invention also makes it possible to largely overcome the ovalization defects of these vertices on which the prior alignment or gripping methods are dependent.
  • FIG 2 there is shown a magnetic core or ferrite 13 consisting of two half ferrites with notches 8 and 9.
  • the magnetic axis 3 belongs to the break plane separating the two half ferrites.
  • Each half ferrite has a notch 10 or 11 formed in the conical body of the ferrite.
  • the assembly of the two half ferrites is fixed by a piece 12 of removable spring steel, installed in the notches 10, 11 on each fractured side of the reconstituted ferrite.
  • Other elements for locating the position of the half ferrite are provided to replace the notches. These elements include lugs arranged on either side of the broken edges of the half ferrite towards the inside or outside of the concavity of the half ferrite as the case may be. These pins have dimensions determined according to the gripping member used in the method according to the invention, in order to allow a marked gripping of the half ferrite.
  • FIG 3 there is shown a whole ferrite mounted with ears.
  • This figure illustrates an embodiment of the prior art.
  • Each ferrite is fitted with geometric reference and gripping ears which are glued to its sides.
  • the break plane 20 of the ferrite 14 is parallel to the planes in which the two ears 16a and 16b are located.
  • An ear 16a or b has three holes 17-19 which make it possible to know with precision the position of the central axis 15 and a future fixing of the half ferrite to a winder.
  • the ear is made of plastic material which is glued to the ferrite.
  • the centering device comprises a plate 21, 22 constituted by the plate 22 proper and a base 21.
  • the plate 22 has a vertical face plane on which are arranged centering elements 29, 30, 33-36. These centering elements are first of all tabs 29 and 30 intended to come to bear in the high notches of the half ferrite 23 placed in the centralizer. It also has tabs 33, 34 which come in the lower notches of the half ferrite 23. Finally, they include needles 35 and 36 which ensure the positioning along the axis 40 of the half ferrite 23.
  • the bar 26 which actuates the V 27, 28 realizes a centering along a first reference axis of the half ferrite 23 on the desired axis 40.
  • the V 26, 28 is movable along the direction 37.
  • the ends 27 and 28 of this lower V come to bear on the edges of the lower circular crown of the half ferrite 23.
  • the two upper half V 24 and 25 are translated along directions 38 and 39 so as to apply their ends 31 and 32 to the upper crown of the half ferrite 23.
  • This last movement makes it possible to correctly apply the half ferrite to the plate 22, the support on needles 35, 36 by gravity.
  • the half ferrite 23 rests on the needles 35 and 36 so as to properly adjust its height relative to the base 21. In this position the ferrite is centered on the axis 40 which means that its magnetic axis is coincident with the axis 40 drawn on plate 22.
  • the geometrical element which serves to memorize the position information of the magnetic axis 40 of the half ferrite is in a preferred embodiment constituted by two parallel edges of a plate constituting the body of the clamp.
  • the geometric storage element consists of three holes in the body of the clamp whose positions relating to the centering elements of the centralizing plate are known. This entry operation is the second main step of the method according to the invention.
  • the clamp is removable.
  • the clamp grasps the half ferrite 23 along the axis A.
  • This clamp comes between the two upper half Vs 24 and 25 grip the ferrite in a plane perpendicular to the vertical reference plane of the plate 22.
  • Mechanical guide members not shown in FIG. 4 are provided so that this gripping plane perpendicular to the plane 22 also contains the centering axis 40. It is then necessary for the gripper, not shown, to include a mechanical reference element which contains both the axis A and the axis 40. This can be achieved by a plate of which at least one of the faces contains the generated plane. by axes A and 40.
  • FIG. 5 there is shown a second particular embodiment according to the invention.
  • the centralizer mainly comprises a base 50 and a plate 73.
  • the base 50 carries a carriage 51 movable in translation on two rails 52 by means of an endless screw 53 movable under the action of a motor 54.
  • the carriage carries the driving elements of the half Vs shown in Figure 4 taken described.
  • the half ferrite 63 is gripped by its left edge by a clamp 65.
  • the plate 73 carries centering elements on the side of the edge that is not gripped by the ferrite.
  • a tab 64 helps with centering by entering the corresponding notch on the edge of the half ferrite.
  • These centering elements are completed by a lower tab and a needle which thus completes the triplet already described in FIG. 4.
  • a clamp 65 consisting mainly of a plate 65a disposed between two slides 70, 71
  • the clamp has a positioning and gripping part 65b.
  • the clamp 65 has been shown schematically.
  • a member 72 for locking the clamp keeps the clamp in position on the plate.
  • the carriage 51 is in the retracted position.
  • the half ferrite 63 in the region of the axes A and 40.
  • the carriage 51 is advanced by the screw 53 and the motor 54 along the axis A until to a fixed stop.
  • a motor 55 actuates the screws 59, 60 and 69 by means of a tilting stirrup 58, 57.
  • the tilting stirrup 57, 58 is pivotally mounted around a horizontal axis perpendicular to the direction A of advancement so as to distribute the thrust action between the upper and lower Vs. It carries a fork 58 which switches along an axis close to the vertical and which distributes the thrust between the two upper V-halves.
  • the motors 54 and 55 fitted with torque limiters like the limiter 56 maintain pressure on the half ferrite 63, the positioning of the ferrite on the plate is finished at this time.
  • the clamp is put into action. It comprises three positioning elements which, in a preferred embodiment, are three centering pins 83, 84 visible for two of them in FIG. 6.
  • the clamp also carries a gripping means 68 which makes it possible to maintain, when it is activated by means 67, the half ferrite on the clamp. This activation is carried out after the half ferrite has been positioned on the clamp-plate assembly.
  • the means 67 for activating the input means 68 is manual. It is either accessible to an operator by means of a screwdriver if the input means is mechanical or of a switch if the input means is electric like an electromagnet or can be operated by an external automation not shown in the figure 5.
  • the centering elements are activated by mechanical control means 66, an exemplary embodiment of which is described below.
  • This means 66 is also maneuverable by an operator or an external automation or centering device of the invention. The centering and the fixing being carried out, the carriage 51 is moved back.
  • the locking device 72 is deactivated and a manual or automatic manipulator can withdraw the clamp 65 from the rails 70, 71.
  • FIG. 6 there is shown a particular embodiment of a clamp adapted to the invention.
  • a clamp comprises a plate 80 on which is mounted a support 81 of the screws 86 and 87 for activating the gripping and centering elements.
  • the plate 80 is used, once the half ferrite centered and gripped according to the method of the invention, to transport anywhere the position information of the central axis of the gripped half ferrite centered.
  • On the tray is fixed a strap 82 made by a metal tape fixed on the one hand by a screw 90 in the upper part of the tray and at the lower part by a screw 89 on a carriage 88 movable on the screw 87.
  • the screw 87 When the screw 87 is operated the carriage 88 moves forward or backward depending on the direction of rotation of the screw. It is understood that a tension can therefore be applied to the strap 82.
  • the clamp also includes pins 83 and 84 movable in translation along a horizontal axis according to the figure, that is to say an axis parallel to the axis of the screws 87 and 86. These pins are intended to come s' press on the external face of the half ferrite installed on the plate 80 so that the tightening of the strap 82 allows firm application of the external face of the half ferrite on the pins 83, 84 for centering.
  • the tightening of the strap 82 does not take place until after the screw 86 has allowed the operation of the pins 83 and 84 which complete the effect of the centering elements arranged on the plate of the Figure 5.
  • the screw 86 operated allows, by the caliper 85, to distribute a centering force through rods 91 and 92 on the pins 83 and 84 as described above for the caliper 57 , 58 tilting in FIG. 5.
  • a push-button 93 allows the adjustment to be blocked independently of the withdrawal of the torque applied to the screw 86 by the automatic screwdriver.
  • the automatic screwdriver which operates the screw 87 then allows the tightening of the strap 82 as just described.
  • the clamp carrying the half ferrite can be used for different purposes, in particular for winding the half ferrite.
  • the position of the magnetic axis of the half ferrite is known with precision as a function in particular of the plane in which the plate 80 is located.
  • a clamp of this type is not easily suitable for gripping the half ferrite elsewhere than on an edge of the break plane.
  • the clamp comprises means for magnetizing the ferrite so as to allow a removable, controllable attachment of the half ferrite to the clamp.
  • the clamp has an electromagnet which exerts a force for attaching the half ferrite to its clamp.
  • the centering device comprises centering members for the two edges of the half ferrite.
  • the clamp can be carried by the centering device by means of a shaft introduced by a bore in the plate with a vertical plane containing the centering axis 40.
  • This shaft secured to the plate 80 perpendicular to its plane is taken in a removable fixing means so as to make the clamp temporarily secured to the centralizer proper during the centering and gripping operations.
  • the locking device 72 of the clamp on the plate then acts on this fixing means and is controlled as it was seen above according to the method according to the invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
  • Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)
  • Mechanical Coupling Of Light Guides (AREA)
  • Compounds Of Iron (AREA)
EP85400293A 1984-02-21 1985-02-19 Procédé de positionnement et de saisie de demis ferrites pour noyau magnétique, et centreur mettant en oeuvre le procédé Expired EP0156674B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85400293T ATE47251T1 (de) 1984-02-21 1985-02-19 Verfahren zum positionieren und festhalten von ferrithaelften fuer magnetkerne und zentriervorrichtung zum durchfuehren des verfahrens.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8402570 1984-02-21
FR8402570A FR2559947B1 (fr) 1984-02-21 1984-02-21 Procede de positionnement et de saisie de demi-ferrites pour noyau magnetique et centreur mettant en oeuvre le procede

Publications (2)

Publication Number Publication Date
EP0156674A1 EP0156674A1 (fr) 1985-10-02
EP0156674B1 true EP0156674B1 (fr) 1989-10-11

Family

ID=9301205

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85400293A Expired EP0156674B1 (fr) 1984-02-21 1985-02-19 Procédé de positionnement et de saisie de demis ferrites pour noyau magnétique, et centreur mettant en oeuvre le procédé

Country Status (8)

Country Link
US (1) US4637803A (da)
EP (1) EP0156674B1 (da)
JP (1) JPS60246541A (da)
AT (1) ATE47251T1 (da)
DE (1) DE3573682D1 (da)
DK (1) DK77785A (da)
FR (1) FR2559947B1 (da)
GR (1) GR850424B (da)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1889398A (en) * 1932-03-05 1932-11-29 Western Electric Co Electrical coil and a method of manufacturing it
US3799462A (en) * 1971-08-23 1974-03-26 Universal Mfg Co Toroidal coil-winding machine
GB1579227A (en) * 1976-05-17 1980-11-12 Rca Corp Coil winding machine and method
JPS5713648A (en) * 1980-06-30 1982-01-23 Toshiba Corp Production unit of vertical deflection coil

Also Published As

Publication number Publication date
GR850424B (da) 1985-06-17
ATE47251T1 (de) 1989-10-15
DE3573682D1 (en) 1989-11-16
US4637803A (en) 1987-01-20
DK77785A (da) 1985-08-22
DK77785D0 (da) 1985-02-20
EP0156674A1 (fr) 1985-10-02
JPS60246541A (ja) 1985-12-06
FR2559947B1 (fr) 1986-05-16
JPH0578131B2 (da) 1993-10-28
FR2559947A1 (fr) 1985-08-23

Similar Documents

Publication Publication Date Title
EP0402900B1 (de) Haltevorrichtung zur Afnahme von scheibenförmigen Gegenständen, insbesondere Halbleiterscheiben, und Verwendung der Haltevorrichtung.
EP0669185B1 (fr) Magasin pour le remplacement d'outils ou de pièces à usiner sur les machines-outils
CH646892A5 (fr) Procede de decoupage par decharges electriques.
EP0640435B1 (fr) Machine à meuler
EP1165282B1 (fr) Procede de maintien en position d'une piece dans un poste d'assemblage
EP0071542A1 (fr) Contrôle du profil d'une feuille cintrée, notamment du galbe de vitrages bombés
CH684642A5 (fr) Pince de maintien d'un corps de bobine dans une machine de bobinage.
EP1557729A1 (fr) Procédé de fabrication d'index horaires et installation pour sa mise en oeuvre
FR2595899A1 (fr) Procede pour monter des composants electroniques en des endroits determines sur une plaquette de circuit imprime
FR2732633A1 (fr) Procede et dispositif de changement d'outil pour un centre d'usinage
EP2700472A1 (en) Method for processing both end faces of round bar
EP0156674B1 (fr) Procédé de positionnement et de saisie de demis ferrites pour noyau magnétique, et centreur mettant en oeuvre le procédé
US4479332A (en) Lens blocker and method
FR2489721A1 (fr) Procede de chemisage d'alesages cylindriques et alesages obtenus par ce procede
EP3820265B1 (fr) Procédé et dispositif de découpe d'un composant électronique radial
JP3525784B2 (ja) Ｃｖｔベルトの組立方法および組立装置
FR2736693A1 (fr) Procede d'alignement d'un element par rapport a un autre et systeme de dechargement de rouleaux utilisant le procede selon l'invention
FR2534837A1 (fr) Plateau diviseur destine a assurer la tenue d'une piece lors de son usinage
FR3089959A1 (fr) Procédé et dispositif de manipulation de matériau plat et/ou en film conçu pour l'emballage d'articles
US6769947B1 (en) Method for manufacturing a lamp electrode
JP2001096485A (ja) 位置決め装置及び加工装置
EP0657903A1 (fr) Procédé de bobinage d'un noyau équipé d'un composant électronique ainsi que de moyens de guidage des fils reliant une bobine au composant électronique
KR20180011437A (ko) 스크라이빙 장치
JPH06295559A (ja) センターコアの移載方法及び装置
EP0280822B1 (fr) Echantillon à perçage muni d'un revêtement et son procédé de préparation

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 DE GB IT NL SE

17P Request for examination filed

Effective date: 19851218

17Q First examination report despatched

Effective date: 19870422

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

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

REF Corresponds to:

Ref document number: 47251

Country of ref document: AT

Date of ref document: 19891015

Kind code of ref document: T

ITF It: translation for a ep patent filed

Owner name: JACOBACCI & PERANI S.P.A.

REF Corresponds to:

Ref document number: 3573682

Country of ref document: DE

Date of ref document: 19891116

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
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

26N No opposition filed
ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19921221

Year of fee payment: 9

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

Ref country code: BE

Payment date: 19930115

Year of fee payment: 9

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

Ref country code: GB

Payment date: 19930129

Year of fee payment: 9

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

Ref country code: DE

Payment date: 19930223

Year of fee payment: 9

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

Ref country code: AT

Payment date: 19930226

Year of fee payment: 9

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

Ref country code: NL

Payment date: 19930228

Year of fee payment: 9

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

Ref country code: GB

Effective date: 19940219

Ref country code: AT

Effective date: 19940219

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

Ref country code: SE

Effective date: 19940220

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

Ref country code: BE

Effective date: 19940228

BERE Be: lapsed

Owner name: VIDEOCOLOR

Effective date: 19940228

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

Ref country code: NL

Effective date: 19940901

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19940219

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

Ref country code: DE

Effective date: 19941101

EUG Se: european patent has lapsed

Ref document number: 85400293.8

Effective date: 19940910