EP0063233A2 - Elément d'actionnement électromagnétique - Google Patents

Elément d'actionnement électromagnétique Download PDF

Info

Publication number
EP0063233A2
EP0063233A2 EP82101865A EP82101865A EP0063233A2 EP 0063233 A2 EP0063233 A2 EP 0063233A2 EP 82101865 A EP82101865 A EP 82101865A EP 82101865 A EP82101865 A EP 82101865A EP 0063233 A2 EP0063233 A2 EP 0063233A2
Authority
EP
European Patent Office
Prior art keywords
working
webs
plunger
electromagnet
anchor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP82101865A
Other languages
German (de)
English (en)
Other versions
EP0063233B1 (fr
EP0063233A3 (en
Inventor
Armin Dipl.-Phys. Bohg
Kurt Hartmann
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.)
IBM Deutschland GmbH
International Business Machines Corp
Original Assignee
IBM Deutschland GmbH
International Business Machines Corp
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 IBM Deutschland GmbH, International Business Machines Corp filed Critical IBM Deutschland GmbH
Publication of EP0063233A2 publication Critical patent/EP0063233A2/fr
Publication of EP0063233A3 publication Critical patent/EP0063233A3/de
Application granted granted Critical
Publication of EP0063233B1 publication Critical patent/EP0063233B1/fr
Expired legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J9/00—Hammer-impression mechanisms
    • B41J9/02—Hammers; Arrangements thereof
    • B41J9/133—Construction of hammer body or tip
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J9/00—Hammer-impression mechanisms
    • B41J9/26—Means for operating hammers to effect impression
    • B41J9/38—Electromagnetic means

Definitions

  • the invention relates to an electromagnetic tappet drive, in which the electromagnet consists of two symmetrically constructed magnetizable yoke halves, each of which is surrounded by a coil, the mutually facing pole ends of which form aligned working gaps and in which a tongue-shaped tappet which can be displaced in the direction of the line of alignment of the working column is arranged, which has armature webs made of magnetizable material, each of which is assigned to a working gap and the volume of the armature webs is in the order of magnitude of the working gap volume and the armature webs in the initial position of the plunger in the non-excited state of the electromagnet is in front of its working gap and when excited of the electromagnet are pulled into its working gap.
  • German patent application GE 980 052 which was filed on the same day with the present patent application GE GE 980 048 based on priority, a bank for holding several pressure tappet units is described.
  • these pressure tappet units consist of a flat frame 2-1-1 between whose legs a tongue-shaped tappet 5 runs in a recess (see FIGS. 1 and 2 of this application GE 980 048 ).
  • a print head 5-1 is attached.
  • the pressure plunger 5 can move in the pressure direction D marked by the arrow (or opposite thereto). His lateral movement is through prevents the electromagnetic drive units 2-1-2 and 2-1-3 attached to the frame.
  • These electromagnetic drive units can be attached to the frame by gluing, screwing, riveting or other conventional methods.
  • two holes 6 are made; Likewise, two holes 9 are provided in the rear base part of the U-shaped frame.
  • holes 6 and 9 are used to hang two tension springs 7, which bring the deflected plunger back to its starting position.
  • the starting position is formed by a stop 8.
  • a pin 11, which is designed as an extension of the stop 8, is fastened in the direction of D in the base of the U-shaped frame.
  • the plunger is accelerated in the direction of action D by activating the electromagnetic drive units.
  • the pressure tappet is returned to its starting position by the force of the springs 7.
  • the disadvantages of the electromagnets are based on the following:
  • the U-shaped or the magnet yokes connected in series to form combs carry the windings on their base part.
  • Comb-like magnetic yoke arrangements are known from German patent application P 30 18 407.7 (GE 980 014), as explained in more detail in connection with FIG. 7 of this application GE 980 048.
  • GE 980 014 German patent application P 30 18 407.7
  • This fact has a particularly disadvantageous effect for the desired high division density of such tappet units in a bank.
  • the application of the coils to the magnetic yokes is cumbersome and costly, and the outer coil parts lead to an undesirable magnetic interaction with the neighboring units.
  • the soft iron web structure in the tongue-shaped tappet specified in the exemplary embodiment according to P 29 26 276.8 also has a number of disadvantages. These disadvantages lie in the difficulty of simply inserting such individual soft iron webs into the tongue-shaped pressure tappet body, which otherwise consists of plastic, while observing all the required tolerances.
  • the improvements are said to lie in the spatial design of the electromagnet units and in the web structures to be inserted in the tongue-shaped pressure tappet body, and in a reduced interaction of neighboring electromagnet units.
  • FIG. 3 is a schematic perspective view of an electromagnetic pressure ram drive according to the German patent application P 29 26 276.8 shown.
  • a tongue 18 movable in the direction of arrow D is arranged between two fixed stator halves 25, 22.
  • the stator halves 25 and 22 each consist of a magnetizable yoke 27 and 24, which is surrounded by coil turns 26 and 23, respectively.
  • the stator yokes can e.g. B. be semicircular, semi-elliptical or U-shaped.
  • the stator yokes 27, 24 in the two stator halves 25 and 22 are aligned such that the respective opposite yoke ends are aligned.
  • the magnetic flux runs from a yoke over a working gap, in which an armature web 20 is arranged, to the yoke of the other stator half and from there via a further working gap back to the former yoke, so that the magnetic circuit runs out the two stator yokes and the two working columns located between the ends of the stator yokes.
  • stator pair instead of a stator half pair in the opposing stator halves.
  • the current flow in the excitation coils 26 and 23 takes place in such a way that the current direction in the windings within the two opposing stator yokes is the same and opposite to that in the windings outside the stator yokes.
  • the windings are indicated schematically by a few wire loops in the front part of the illustration, while a corresponding sectional illustration of the wires was selected in the rear part.
  • the tongue 18 arranged movably in the direction of arrow D between the stator halves 25 and 22 is expanded in the direction of the working gap to be much smaller than in its other two dimensions.
  • the body of the tongue 18 consists of a light, magnetically non-conductive material 19 and magnetically conductive, so-called anchor webs 20 and 21.
  • Anchor bars are arranged in the tongue 18 such that they are drawn into the space formed between the stator yokes when the stator halves are excited from a rest-starting position and thereby accelerated. The tongue can then follow a further movement in the direction of arrow D.
  • the design of the anchor webs 20 and 21 is essentially chosen so that their volume would approximately fill the space circumscribed between the ends of the opposite stator yokes.
  • the distance covered by the tongue from the starting position to the position after the end of the acceleration phase (when the anchor bridge is in the working gap) is called the acceleration stroke; the sum of the acceleration stroke and the subsequent further deflection of the tongue in the direction of arrow D as the working stroke.
  • This size depends on the structural boundary conditions and on the means provided for storing the tongue or for returning the tongue to its initial position.
  • return springs can be used: z.
  • electromagnet described in German patent application P 30 18 407.7 (GE 980 014) with a working gap, into which an element containing a displaceable soft magnetic material is drawn when the electromagnet is excited is characterized in that the electromagnet (95) consists of two magnetizable yoke halves (96 , 97, 99; 108, 109, 98), of which at least one is enclosed by a coil (100), that the mutually facing, essentially semicircular, recessed pole ends of the yoke halves form essentially circular working gaps (101, 102), that between the pole ends of the yoke halves a plunger (91) which is displaceable in the direction of the line of alignment of the working gap and which has a cross section which is adapted to the surface of the working gap, that the plunger (91) has two armature disks (92, 93) made of magnetizable material and one between them Armature disks (92, 93) arranged spacer element (94) made predominantly non-magnetized
  • FIG. 1 shows a perspective view of a bench for accommodating a plurality of pressure ram units.
  • the pressure tappet units of which only four (for the sake of simplicity) (without the pressure tappet) are shown with 2-1, 2-2, 2-3 and 2-4.
  • the frames of these pressure tappet units bear the reference numbers 2-1-1, 2-2-1, 2-3-1 and 2-4-1.
  • Each pressure tappet unit has a pair of electromagnetic drive units for the pressure tappet.
  • the electromagnetic drive units for the pressure ram unit 2-1 are designated 2-1-2 and 2-1-3 and are arranged on both sides of the frame 2-1-1 in an aligned manner.
  • Electromagnetic drive units as can be used for the bank described here, are described in German patent application P 29 26 276.8.
  • the print hammer bank consists of a lower part 1-1 and an upper comb-like part 1-2.
  • the lower part 1-1 is referred to as the base part and the upper part 1-2 as the comb part.
  • the base part is composed of two rails 1-1-1, 1-1-2 running parallel to one another and a part 1-1-3 provided with slots 4 between them.
  • the slots run parallel to each other and are limited in length by the rails 1-1-1 and 1-1-2. They serve to accommodate a lower extension (see FIGS. 2 and 4) of the pressure tappet frame.
  • the comb part 1-2 of the bench consists of a beveled (1-2-1) part which has comb-like incisions 3 on its side tapered by the bevel. These comb-like incisions 3 are aligned with the slots 4 in the base part 1-1. Each of these comb-like cuts 3 ⁇ m takes part of the upper edge of the frame of the individual plunger units. The individual plunger units are thus fixed in their position.
  • a vertical evasion is by the position of D jerk plunger assemblies between the base member 1-1 and the crest part 1-2 not possible during an evasion in direction of action of the pressure ram (not shown) parallel to the extending direction of the slits 4 and opposite thereto by means of corresponding receiving the lower frame approach (2-1-7; 14) in the slots 4 can be prevented or influenced in the desired manner.
  • the latter is particularly important for those cases in which you want to cause the plunger to rebound against the pressure hammer bench. Further details are given in connection with FIG. 2.
  • an electromagnetic drive unit 2-1-2 and 2-1-3 is arranged in a mutually aligned form.
  • the electromagnetic drive units are offset in pairs for side-by-side pressure tappet units, so that the distance between two adjacent frames is determined by the strength of an electromagnetic drive unit.
  • the electromagnetic drive units 2-1-2 / 2-1-3 of the pressure tappet units 2-1 are compared to the electromagnetic drive units 2-2-2 / 2-2-3 of the pressure tappet unit 2 -2 offset accordingly.
  • FIG. 1 and FIG. 2 originate from the German patent application GE 980 052, which was filed on the same day as the present German patent application GE 980 048.
  • FIG. 4 shows an exploded drawing of a pressure ram unit with associated electromagnetic drive units. Many parts of Fig. 4 correspond to the parts with the same reference numerals in Figs. 1 and 2. In order to avoid repetitions, they are not dealt with in the explanation of FIG. 4 or only briefly.
  • the tongue-shaped plunger 5 the base body of which is made of plastic, is provided with bores 31 at various points for reasons of weight.
  • the soft iron bars required for the effectiveness of the electromagnetic drive are shown at 60, 61 and 62.
  • the electromagnetic drive units 2-1-2 and 2-1-3 which are fastened on both sides of the frame 2-1 in an aligned form, each contain a magnetic yoke 41 (51) and an associated excitation coil 45 (55).
  • the magnet yoke coil combinations are marked with 40 and 50. Each of these combinations is received by a housing 140, 150 with a corresponding plug connection 141, 151 with contacts 142, 152 for the excitation coils 45 and 55.
  • These housings are connected to the frame by means of screws (not shown) or other suitable fastening means.
  • Corresponding mounting holes are designated in the housing 150 with 32-1 and 33-1 and in the frame 2-1 with 32 and 33.
  • the from Fastening elements not shown for reasons of clarity, ensure exact positioning of the electromagnetic drive units, in particular the working gap in relation to the soft iron webs 6, 19, 20 in the tongue-shaped tappet 5.
  • a magnetizable web does not have to be in the excited state of the electromagnets in front of a working gap.
  • the magnet yokes 41 and 51 have an E-shaped cross section.
  • the opposite E-shaped magnet yokes 51 and 41 are aligned so that a total of 3 working gaps are formed by their leg ends 52, 53, 54 and 42, 43, 44: the first working gap is between the leg ends 52 and 42, the second between the Leg ends 53 and 43 and the third between the leg ends 54 and 44.
  • One of the three magnetizable webs 62, 61 and 60 is assigned to each of these working gaps.
  • the excitation winding for each magnetic yoke runs, as shown in FIG. 4, around the middle E-leg in such a way that the excitation coil can be manufactured separately as a flat slip-on coil for the middle E-leg, with the winding strands running parallel in the through the E- Legs formed spaces must fit.
  • the magnetic yoke excitation coils is extremely inexpensive and space-saving.
  • the coil expansion does not extend in the direction perpendicular to the plunger plane beyond the magnetic yoke. This fact is particularly noteworthy for a high packing density with little magnetic interaction of the pressure tappet units in banks.
  • the flat coil and the E-shaped magnetic yoke allow simple and inexpensive production of the individual parts and easy assembly of the two parts.
  • the magnetic yoke coil combination 50 is inserted into a corresponding recess 34 in the housing 150 and is potted there with the housing with plastic. The same applies to the magnet yoke coil combination 40 and the housing 140.
  • the soft iron webs in the pressure ram 5 should in particular be assigned as tolerance-free as possible to the corresponding working gaps of the electromagnets. This also results in requirements for the most problem-free insertion of the magnetizable webs into the plastic base body of the plunger 5.
  • FIG. 5 shows a structure in which the magnetizable webs 60, 61 and 62 are continuously connected with the same magnetizable material of thinner thickness.
  • the webs 60 and 61 are connected via the connection 63 and the webs 61 and 62 via the connection 64.
  • Such connections 63, 64 between the webs are undesirable for optimal operation of the drive. It has been found, however, that with a correspondingly thin strength of these compounds, their disadvantageous influence on the efficiency is only slight and that this influence can be accepted in practice without further ado.
  • FIG. 6 Another web structure is shown in FIG. 6.
  • the plunger itself is labeled 70, the plunger head again 5-1.
  • the holes for receiving the tension springs (not shown) (see FIG. 4) have the reference number 6 and those material-saving bores have the reference number 31 as in FIG. 4.
  • the web structure 71 itself has the shape of a longitudinally and transversely divided rectangular frame with four openings 72.
  • the frame parts essential for the tappet drive are the webs 73, 74 and 75.
  • the webs 73 and 74 are due to the frame parts 76, 77 and 78 lying transversely thereto made of the same material as the web material;
  • the webs 74 and 75 are connected by the frame parts (same material) 79, 80 and 81 lying transversely thereto.
  • the transverse frame parts are narrower and thinner than the webs themselves - the frame openings are encapsulated with plastic up to the ram level.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
EP82101865A 1981-04-11 1982-03-09 Elément d'actionnement électromagnétique Expired EP0063233B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3114834 1981-04-11
DE19813114834 DE3114834A1 (de) 1981-04-11 1981-04-11 Elektromagnetischer stoesselantrieb

Publications (3)

Publication Number Publication Date
EP0063233A2 true EP0063233A2 (fr) 1982-10-27
EP0063233A3 EP0063233A3 (en) 1983-09-14
EP0063233B1 EP0063233B1 (fr) 1986-06-04

Family

ID=6130023

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82101865A Expired EP0063233B1 (fr) 1981-04-11 1982-03-09 Elément d'actionnement électromagnétique

Country Status (4)

Country Link
US (1) US4412197A (fr)
EP (1) EP0063233B1 (fr)
JP (1) JPS57170061A (fr)
DE (2) DE3114834A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0127692A1 (fr) * 1983-06-01 1984-12-12 Ibm Deutschland Gmbh Elément d'actionnement électromagnétique
EP0134827A1 (fr) * 1983-09-08 1985-03-27 Ibm Deutschland Gmbh Entraînement électromagnétique pour mouvements linéaires ou rotatifs continus et pas à pas
EP0176618A1 (fr) * 1984-10-04 1986-04-09 Ibm Deutschland Gmbh Elément d'actionnement électromagnétique, en particulier pour imprimante à impact

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0108159A1 (fr) * 1982-11-05 1984-05-16 Ibm Deutschland Gmbh Entraînement électromagnétique à mouvement de balancier, en particulier pour imprimantes à percussion
US4496253A (en) * 1983-04-20 1985-01-29 Daisy Systems, Holland B.V. Impact hammer
US4867059A (en) * 1988-08-05 1989-09-19 International Business Machines Corporation Impact printer print mechanism and method of manufacture
DE3931050A1 (de) * 1989-09-16 1991-03-28 Bosch Gmbh Robert Pruefeinrichtung fuer beschleunigungssensoren
US20080061105A1 (en) * 2005-06-17 2008-03-13 Jonas Zachrisson Electrically Powered Tool

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1110729B (de) * 1956-02-23 1961-07-13 Licentia Gmbh Schaltmagnet fuer elektromagnetische Schaltgeraete, z. B. Schaltschuetze
DE1236072B (de) * 1960-08-25 1967-03-09 Licentia Gmbh Elektromagnet mit M-foermigen Jochhaelften und auf Parallelitaet justierbaren Polflaechen
EP0021335A1 (fr) * 1979-06-29 1981-01-07 International Business Machines Corporation Dispositif électromagnétique pour actionner un élément d'impression

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2935663A (en) * 1958-04-04 1960-05-03 Manfred J Pollak Magnetic actuators
DE1237816B (de) * 1963-08-24 1967-03-30 Ibm Deutschland Druckhammerantrieb fuer Schnelldrucker
US3491319A (en) * 1967-08-29 1970-01-20 Servo Labs Inc Digital actuator
JPS5180205A (fr) * 1975-01-08 1976-07-13 Hitachi Ltd
JPS53113376A (en) * 1977-03-15 1978-10-03 Matsushita Electric Works Ltd Oscillatory device
JPS5473917U (fr) * 1977-11-04 1979-05-25

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1110729B (de) * 1956-02-23 1961-07-13 Licentia Gmbh Schaltmagnet fuer elektromagnetische Schaltgeraete, z. B. Schaltschuetze
DE1236072B (de) * 1960-08-25 1967-03-09 Licentia Gmbh Elektromagnet mit M-foermigen Jochhaelften und auf Parallelitaet justierbaren Polflaechen
EP0021335A1 (fr) * 1979-06-29 1981-01-07 International Business Machines Corporation Dispositif électromagnétique pour actionner un élément d'impression

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0127692A1 (fr) * 1983-06-01 1984-12-12 Ibm Deutschland Gmbh Elément d'actionnement électromagnétique
EP0134827A1 (fr) * 1983-09-08 1985-03-27 Ibm Deutschland Gmbh Entraînement électromagnétique pour mouvements linéaires ou rotatifs continus et pas à pas
EP0176618A1 (fr) * 1984-10-04 1986-04-09 Ibm Deutschland Gmbh Elément d'actionnement électromagnétique, en particulier pour imprimante à impact

Also Published As

Publication number Publication date
EP0063233B1 (fr) 1986-06-04
EP0063233A3 (en) 1983-09-14
DE3114834A1 (de) 1982-11-04
DE3271507D1 (en) 1986-07-10
US4412197A (en) 1983-10-25
JPS57170061A (en) 1982-10-20
JPS6226262B2 (fr) 1987-06-08

Similar Documents

Publication Publication Date Title
DE10347452B4 (de) Aktuator, Verfahren zur Herstellung des Aktuators und Leistungsschalter, der mit dem Aktuator ausgestattet ist
DE2728629C2 (de) Elektromagnetvorrichtung
DE3230564C2 (de) Elektromagnetisches Schaltgerät, bestehend aus einem Magnetantrieb und einem oberhalb dessen angeordneten Kontaktapparat
DE2816555A1 (de) Magnetkreisanordnung fuer einen elektromagneten fuer einen mit einem permanentmagneten als anker
DE3715304C2 (fr)
EP0063233B1 (fr) Elément d'actionnement électromagnétique
CH676895A5 (fr)
EP0028314B1 (fr) Dispositif de déclenchement électromagnétique, en particulier pour l'actionnement de marteaux d'impression
DE102007028203B3 (de) Magnetisches Antriebssystem für eine Schalteinrichtung
EP0127692A1 (fr) Elément d'actionnement électromagnétique
EP0134827A1 (fr) Entraînement électromagnétique pour mouvements linéaires ou rotatifs continus et pas à pas
DE3132244C2 (de) Polarisiertes elektromagnetisches Relais
EP0021335B1 (fr) Dispositif électromagnétique pour actionner un élément d'impression
DE2711480C2 (de) Elektromagnetisches Miniaturrelais
DE69013260T2 (de) Punktrasterdruckkopf.
DE3018407A1 (de) Elektromagnetisch betaetigbarer stoesselantrieb, insbesondere fuer anschlagdrucker
DE2654714B2 (de) Kreuzpunkt-Schaltmatrix
DE2924672A1 (de) Nadeldruckwerk
DE19928622A1 (de) Längsgeblechter Jochkörper für einen Elektromagneten
EP0174381B1 (fr) Banc de marteaux d'impression de construction modulaire
DE2926276A1 (de) Schneller elektromagnetischer druckhammerantrieb mit hohem wirkungsgrad
DE3528090C1 (de) Elektromagnetisches Relais
EP0108159A1 (fr) Entraînement électromagnétique à mouvement de balancier, en particulier pour imprimantes à percussion
DE176410C (fr)
DE1965577C3 (de) Betätigungsanordnung für eine Anzahl von Betätigungsgliedern

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): DE FR GB IT

17P Request for examination filed

Effective date: 19830218

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): DE FR GB IT

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT

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

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 19860604

REF Corresponds to:

Ref document number: 3271507

Country of ref document: DE

Date of ref document: 19860710

ET Fr: translation filed
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
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19890223

Year of fee payment: 8

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

Ref country code: GB

Payment date: 19900228

Year of fee payment: 9

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

Ref country code: FR

Effective date: 19901130

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

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

Ref country code: GB

Effective date: 19910309

GBPC Gb: european patent ceased through non-payment of renewal fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19920321

Year of fee payment: 11

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

Ref country code: DE

Effective date: 19931201