EP0692560A1 - Procédé pour réguler un système d'étirage, en particulier sur une machine de cardage, et dispositif pour réguler - Google Patents

Procédé pour réguler un système d'étirage, en particulier sur une machine de cardage, et dispositif pour réguler Download PDF

Info

Publication number
EP0692560A1
EP0692560A1 EP95110618A EP95110618A EP0692560A1 EP 0692560 A1 EP0692560 A1 EP 0692560A1 EP 95110618 A EP95110618 A EP 95110618A EP 95110618 A EP95110618 A EP 95110618A EP 0692560 A1 EP0692560 A1 EP 0692560A1
Authority
EP
European Patent Office
Prior art keywords
rollers
pair
motor
drafting
measuring
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
EP95110618A
Other languages
German (de)
English (en)
Other versions
EP0692560B1 (fr
Inventor
Gerhard Barth
Thomas Heinecke
Thomas Enghardt
Gert Zeidler
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.)
CSM Saechsische Spinnereimaschinen GmbH
Original Assignee
Chemnitzer Spinnereimaschinenbau 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 Chemnitzer Spinnereimaschinenbau GmbH filed Critical Chemnitzer Spinnereimaschinenbau GmbH
Publication of EP0692560A1 publication Critical patent/EP0692560A1/fr
Application granted granted Critical
Publication of EP0692560B1 publication Critical patent/EP0692560B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/32—Regulating or varying draft
    • D01H5/38—Regulating or varying draft in response to irregularities in material ; Measuring irregularities
    • D01H5/42—Regulating or varying draft in response to irregularities in material ; Measuring irregularities employing electrical time-delay devices

Definitions

  • the invention relates to a method for regulating a drafting system, in particular on cards, wherein the measurement signals at the drafting system input are detected, compared with the target value and an actuating signal for the control unit of a regulating motor for the pair of drafting rollers is derived from the difference signal.
  • the invention also relates to a regulating device for carrying out the method.
  • the measured values are evaluated with a time delay and converted into an actuating signal as a function of the measured mass per unit length and a target value for the mass per unit length.
  • a setpoint is obtained from the difference between the measured mass and the specified setpoint with the aid of a first control circuit, from which a manipulated variable for setting the delay of the drafting unit is generated with the aid of a second control using a second control.
  • the error that may occur is reduced with a higher probability.
  • the chance of getting a precisely regulated band is higher than with a simple regulation.
  • measuring devices are also arranged at the input and the output of the drafting system, the measured values of which are compared with one another. The result is corrected by stored information and converted into an actuating signal.
  • the processing of a measurement signal is simply limited to converting it into a digital signal by converting it into a jump address while simultaneously processing the setpoint.
  • the command for correcting the drive voltage of the control motor set by the jump address remains the same size until the next correction value is determined and can supply the set correction value to the control motor over a longer period of time.
  • the regulating motor has sufficient time to correct its magnetic fields and to accelerate or decelerate the mechanical elements, the rotor and the drafting rollers to the new speed value.
  • the sections of the fiber belt that specified the measured value are in the effective range of the pair of drafting rollers.
  • the design of the method according to claim 2 ensures that the setpoints can be kept available over a longer period of time with simple and inexpensive components and can be adapted to new conditions with little effort.
  • Obtaining the measuring clock according to claim 3 enables a compact design of the controller without interfering in other devices of the machine.
  • the provision of the manipulated variable for the basic speeds of the regulating motor according to claim 4 has the advantage that the synchronism between the customer and the drafting system can be guaranteed under all conditions.
  • the regulating device defined for the execution of the method in claim 5 ensures high quality of the control results with simple components currently offered.
  • the drive connection between adjacent pairs of rollers which was previously customary for slewing gear, can be used as an assembly.
  • the configuration according to claim 10 avoids that a separate control device must be assigned to the motor for driving the slewing gear. A belt store between the drafting system and the slewing gear can be avoided.
  • the drafting system of the exemplary embodiment is located at the exit of a flat card and is arranged behind the belt funnel 2 located at this point in a manner known per se.
  • the lower measuring roller 30 is mounted in a stationary manner and is subjected to a rotary drive.
  • the upper roller is vertically displaceable and is loaded.
  • a transducer 33 senses the vertical position of the upper roller 31, converts the path signal into an analog electrical quantity. It thus supplies a signal that is proportional to the thickness of the sliver 1.
  • the measuring roller pair 30.31 is followed by the feed roller pair 40.41 at a distance of approximately 50 mm.
  • the lower roller 40 is mounted fixed to the frame and is driven in a specific transmission ratio to the take-off roller 631.
  • the upper roller 41 is held non-positively on the lower roller 40. It rotates with it and clamps the sliver 1 passing between them.
  • rollers 40, 41 has approximately equal angular distances a number of donor marks 411, which are sensed by a fixed sensor 412.
  • the pulses obtained in this way are converted into electrical clock signals, measuring clocks a, b ...
  • the pair of drafting rollers 50, 51 is arranged at a further spacing of likewise approximately 50 mm or another spacing that depends on the average stack length of the fiber sliver 1. This pair of drafting rollers 50, 51 is identical in terms of the rollers to the pair of drawing rollers 40, 41.
  • the lower roller 51 is driven here by a regulating motor 52, which is a servo motor.
  • the processing unit 6 for the delay values and the control unit 53 are assigned to this regulating motor 52.
  • the fiber sliver 1 either directly or indirectly via an intermediate store 71 reaches the area of a so-called rotating mechanism 7 and is deposited there in a spinning can 73 according to a predetermined scheme, promoted by a pair of laying rollers 72.
  • the laying roller pair 72 of the rotating mechanism 7 is driven in a manner known per se by a separate motor 74.
  • the speed of the motor 74 is regulated or controlled as a function of the delivery speed of the drafting system.
  • FIG. 2 shows a block diagram of the control circuit for the regulating motor 52 of the pair of drafting rollers 50, 51.
  • the sensor 3 delivers an analog value for the thickness of the sliver 1 immediately behind the funnel 2.
  • This analog signal is fed to an A / D converter 34, which digitizes the analog signals in 8-bit form.
  • This A / D converter 34 is followed by an NC controller 61, the tasks and components of which will be described later.
  • an initially analog setpoint is entered at 621.
  • This setpoint is digitized via an A / D converter 622 and converted into a jump address by a further MG controller 623.
  • the jump address is used to select one of the stored setpoints from a setpoint register 6231 and to forward it to the MG controller 61 for the measured value pickup 3.
  • This setpoint prepared in this way is compared with the digitized measured value. Jump addresses are now formed from the difference signal obtained, depending on the size of the difference.
  • a command line is selected from a correction register 613, the activated information of which is then fed to the control unit 53 for the regulating motor 52.
  • This control unit 53 is additionally supplied with a control voltage which is proportional to the speed of the pickup 631 of the card.
  • An incremental encoder (IGR) 632 is used to generate this speed signal, the pulse sequence of which is evaluated by an encoder card 633 and converted into an equivalent voltage.
  • the voltage value for the correction and the voltage value for the base speed are combined in the control unit 53 and a corresponding control command is passed on to the regulating motor 52.
  • the regulating motor 52 is a highly dynamic servo motor which has an extremely low moment of inertia for the rotor. According to the selection series, it has an moment of inertia of less than 0.001 kgm2.
  • This motor should have a sufficiently large torque that is suitable for making the necessary corrections of the speeds for the pair of drafting rollers 50, 51 in a reasonably short time.
  • Fig. 3 the control sequence is again shown schematically on the basis of a time diagram.
  • the time variables shown are certainly not shown in proportion to the actual value.
  • the A / D converter For the first process step, converting the measured value of the strip thickness, the A / D converter requires an average of approximately 0.8 ms. For the comparison of the measured value and the setpoint in the comparator 611, the creation of the jump address at 612 for the correction register 613 and the activation of the jump address in the correction register 613, another 5-6 ms are required.
  • the control unit 53 also needs a time of this magnitude to output the manipulated variable for the regulating motor 52.
  • the regulating motor 52 again needs a time for the necessary speed change, which is still considerably longer than the time for processing the electrical quantities.
  • the correction of the strip thickness due to the additional or reduced warping only begins with a noticeable change in speed.
  • the setpoint from the setpoint register 6231 is available for an arbitrary period of time.
  • the A / D converter 34 With the output of the digital measured variable by the A / D converter 34, the comparison and the creation of the jump address is possible at the same time. If the jump address is switched through in the correction register, the A / D converter 34 also receives a signal which enables the next measurement value to be switched through at the next measurement clock pulse b.
  • next measuring pulse b arrives, the next measured value is entered into the control and processed in the same way as described above with reference to the first pulse a.
  • control unit 53 corrects its output and causes the regulating motor 52 to execute the new corrected speed.
  • the measured point of the fiber belt 1 is moved in approximately 17 ms up to the pair of feed rollers 40, 41.
  • the sliver 1 requires a further 17 ms until the pair of drafting rollers 50.51.
  • a time interval of approximately 8 to 10 ms is required from one pulse to the next.
  • the new correction value for the regulating motor 52 can be provided within a very short time.
  • the regulating motor 52 can begin to change the speed immediately after the measurement process and can either end or continue the correction when the next correction value arrives.
  • the correction can thus be carried out, apart from natural tolerances, at the point in time at which the measured point on the sliver 1 moves in the effective range of the drafting rollers 50, 51.
  • the warping area of the warping roller 50, 51 extends almost up to the nip of the pair of feeding rollers 40, 41 due to the average fiber length.
  • the measured point on the sliver 1 is located approximately there when the motor speed has already changed by a sufficient amount.
  • control results are good even at very low speeds, for example in the creeper gear, because the end of each control process is limited by reaching the new speed.
  • the standard time of an operation has no effect on the correction variable.
  • the new effect of the invention is obviously that the time for the provision of a real effective correction value can be kept very small and the motor 52 has sufficient time to then reach the corrected speed before the measured section of the sliver 1 in reaches the area of action of the drafting rollers.
  • this can be achieved by providing jump addresses and controlling registers with prepared control commands.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Preliminary Treatment Of Fibers (AREA)
EP95110618A 1994-07-12 1995-07-07 Procédé pour réguler un système d'étirage, en particulier sur une machine de cardage, et dispositif pour réguler Expired - Lifetime EP0692560B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4424091A DE4424091A1 (de) 1994-07-12 1994-07-12 Verfahren zum Regulieren eines Streckwerkes, insbesondere an Karden und Reguliervorrichtung
DE4424091 1994-07-12

Publications (2)

Publication Number Publication Date
EP0692560A1 true EP0692560A1 (fr) 1996-01-17
EP0692560B1 EP0692560B1 (fr) 2000-05-03

Family

ID=6522645

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95110618A Expired - Lifetime EP0692560B1 (fr) 1994-07-12 1995-07-07 Procédé pour réguler un système d'étirage, en particulier sur une machine de cardage, et dispositif pour réguler

Country Status (4)

Country Link
US (1) US5815889A (fr)
EP (1) EP0692560B1 (fr)
DE (1) DE4424091A1 (fr)
WO (1) WO1996001917A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003085179A3 (fr) * 2002-04-04 2004-04-01 Rieter Ingolstadt Spinnerei Machine de preparation de filature
JP2008202211A (ja) * 1996-06-29 2008-09-04 Truetzschler Gmbh & Co Kg カード出口にデリベリローラを有するウェブファンネルを設けたカードにおける装置
CN111676555A (zh) * 2020-06-08 2020-09-18 山东祥瑞祥纺织有限公司 变支在59tex以上密度纱自动落纱环节中的应用

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6581248B1 (en) * 1997-01-23 2003-06-24 Maschinenfabrik Rieter Ag Carding machine with drawing rollers at the outlet
TR200000962T2 (tr) * 1997-09-01 2001-07-23 Maschinenfabrik Rieter Ag Ayarlı çekme tertibatı.
DE19906139B4 (de) * 1999-02-13 2008-01-10 TRüTZSCHLER GMBH & CO. KG Regulierstreckwerk für einen Faserverband, z. B. Baumwolle, Chemiefasern o. dgl., mit mindestens einem Verzugsfeld
IT1313271B1 (it) * 1999-07-29 2002-07-17 Marzoli Spa Dispositivo e procedimento per il pilotaggio delle motorizzazioni dimacchine tessili.
DE10041894B4 (de) * 2000-08-25 2011-08-11 Trützschler GmbH & Co. KG, 41199 Verfahren und Vorrichtung zum Verstrecken von Faserband in einer Regulierstrecke für Fasermaterial zum direkten Ermitteln von Einstellwerten für den Reguliereinsatzpunkt
DE10041893A1 (de) * 2000-08-25 2002-03-07 Truetzschler Gmbh & Co Kg Vorrichtung an einer Regulierstrecke zum direkten Ermitteln von Einstellwerten für den Reguliereinsatzpunkt
DE10041892A1 (de) * 2000-08-25 2002-03-07 Truetzschler Gmbh & Co Kg Vorrichtung an einer Regulierstrecke für Faserbänder zum direkten Ermitteln von Einstellwerten für den Reguliereinsatzpunkt
ATE284987T1 (de) * 2000-11-08 2005-01-15 Rieter Ag Maschf Steuerung von spinnstellen in einer spinnmaschine
DE10057699A1 (de) * 2000-11-21 2002-05-23 Truetzschler Gmbh & Co Kg Vorrichtung an einer Strecke zur Verarbeitung von Faserbändern, z. B. Baumwolle, Chemiefasern u. dgl.
DE10116944A1 (de) * 2001-04-05 2002-10-10 Truetzschler Gmbh & Co Kg Vorrichtung an einer Karde zum Füllen einer Kanne mit länglichem Querschnitt
US7103440B2 (en) * 2001-12-11 2006-09-05 Rieter Ingolstadt Spinnereimaschinenbau Ag Use of microwaves for sensors in the spinning industry
DE10307603A1 (de) * 2003-02-22 2004-09-02 Rieter Ingolstadt Spinnereimaschinenbau Ag Textilmaschine
DE102005037836A1 (de) * 2005-08-08 2007-02-15 Maschinenfabrik Rieter Ag Verfahren zum Ablegen eines Faserbandes, Steuervorrichtung und Textilmaschinenkombination

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3622584A1 (de) 1986-07-04 1988-01-07 Zinser Textilmaschinen Gmbh Verfahren und vorrichtung zur regulierung des verzugs eines faserbands bei einer textilmaschine
DE4215682A1 (de) 1991-06-04 1992-12-10 Schubert & Salzer Maschinen Verfahren und vorrichtung zur korrektur des reguliereinsatzpunktes und der regulierintensitaet
EP0553483A1 (fr) * 1992-01-29 1993-08-04 Rieter Ingolstadt Spinnereimaschinenbau AG Procédé et dispositif pour le contrôle d'un système d'étirage
EP0617149A1 (fr) * 1993-02-25 1994-09-28 SPINNEREIMASCHINENBAU LEISNIG GmbH Procédé pour égaliser de rubans de fibres textiles

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3823767A (en) * 1972-02-29 1974-07-16 Economic Development Corp Process for treating water
GB2081758B (en) * 1980-08-12 1984-02-22 Le Nii Textilnoi Regulating apparatus for automatically controlling the evenness of the linear density of a silver
JPS59123494A (ja) * 1982-12-28 1984-07-17 Tokyo Keiki Co Ltd パルスモ−タ制御装置
US5509179A (en) * 1990-06-25 1996-04-23 Mondini; Giancarlo Autoleveller draw frame having process feed back control system
DE4231527A1 (de) * 1991-09-21 1993-03-25 Skf Textilmasch Komponenten Verfahren zur spindeldrehzahl-sollwertvorgabe, insbesondere fuer spindelantriebe einer ringspinnmaschine und anordnung zur durchfuehrung des verfahrens
GB2273507A (en) * 1992-12-21 1994-06-22 Hollingsworth On Wheels John D Sliver autolevelling method and apparatus
DE4307839A1 (de) * 1993-03-12 1994-09-15 Rieter Ingolstadt Spinnerei Verfahren und Vorrichtung zur automatischen Einstellung der Drehzahlverhältnisse an einer Strecke

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3622584A1 (de) 1986-07-04 1988-01-07 Zinser Textilmaschinen Gmbh Verfahren und vorrichtung zur regulierung des verzugs eines faserbands bei einer textilmaschine
DE4215682A1 (de) 1991-06-04 1992-12-10 Schubert & Salzer Maschinen Verfahren und vorrichtung zur korrektur des reguliereinsatzpunktes und der regulierintensitaet
EP0553483A1 (fr) * 1992-01-29 1993-08-04 Rieter Ingolstadt Spinnereimaschinenbau AG Procédé et dispositif pour le contrôle d'un système d'étirage
DE4202352A1 (de) 1992-01-29 1993-08-05 Rieter Ingolstadt Spinnerei Verfahren und vorrichtung zur regulierung eines streckwerkes
EP0617149A1 (fr) * 1993-02-25 1994-09-28 SPINNEREIMASCHINENBAU LEISNIG GmbH Procédé pour égaliser de rubans de fibres textiles

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008202211A (ja) * 1996-06-29 2008-09-04 Truetzschler Gmbh & Co Kg カード出口にデリベリローラを有するウェブファンネルを設けたカードにおける装置
WO2003085179A3 (fr) * 2002-04-04 2004-04-01 Rieter Ingolstadt Spinnerei Machine de preparation de filature
CN111676555A (zh) * 2020-06-08 2020-09-18 山东祥瑞祥纺织有限公司 变支在59tex以上密度纱自动落纱环节中的应用

Also Published As

Publication number Publication date
EP0692560B1 (fr) 2000-05-03
DE4424091A1 (de) 1996-01-18
US5815889A (en) 1998-10-06
WO1996001917A1 (fr) 1996-01-25

Similar Documents

Publication Publication Date Title
EP0692560B1 (fr) Procédé pour réguler un système d'étirage, en particulier sur une machine de cardage, et dispositif pour réguler
DE2544209C2 (de) Verfahren zum Anspinnen einzelner Spinnaggregate einer eine Vielzahl von Spinnaggregaten aufweisenden OE-Spinnmaschine
EP0466049B1 (fr) Entraînement pour un système d'étirage
DE2605978C2 (de) Vorrichtung zum Steuern des Anspinnvorgangs bei Rotor-Spinnmaschinen
DE2944428C2 (de) Vorrichtung zur Produktionssteuerung und Bandregulierung einer Karde
DE3440009C2 (de) Verfahren und Vorrichtung zum Bilden eines Anspinners
DE2732420A1 (de) Elektronisch gesteuertes aufwickelaggregat
EP1009870B2 (fr) Banc d'etirage regule
DE1535051C3 (de) Steuervorrichtung an Spinn- und Zwirnmaschinen zum Steuern der Hubumkehr einer Ring- oder Spindelbank
EP0978581B1 (fr) Machine pour le traitement de matériau textile avec banc d'étirage
DE19925271B4 (de) Streckwerk für eine Spinnereimaschine, insbesondere eine Regulierstrecke für Baumwolle, Chemiefasern u. dgl.
EP0558719B1 (fr) Entrainement pour peigneuse
EP0423067A1 (fr) Ourdissoir à cônes et procédé d'ourdissage
CH659491A5 (de) Verfahren und vorrichtung zum steuern des anspinnvorgangs bei einer offenend-rotorspinnmaschine.
DE3206272C2 (fr)
WO1992005301A1 (fr) Banc d'etirage avec cylindre de sortie regule
EP0291710B1 (fr) Procédé et dispositif pour surveiller la partie rattachée du fil sur un métier à filer à bout libre
DE10004604A1 (de) Vorrichtung zum Zuführen von Faserbändern an einer Spinnereimaschine, insbesondere Strecke, z.B. Regulierstrecke
DE3144760C2 (de) Verfahren und Vorrichtung zum Steuern des Anspinnvorgangs bei einer Offenend-Rotorspinnmaschine
DE2220748B2 (de) Verfahren und vorrichtung zur vergleichmaessigung des querschnitts oder des gewichtes pro laengeneinheit eines mittels karde oder krempel produzierten faserbandes
DE19529753B4 (de) Verfahren zur Gewährleistung eines exakten Regeleinsatzes für den Verzug eines Faserverbandes einer Vorspinnereimaschine und Vorrichtung zur Durchführung
DE2650287C2 (de) Verzugseinrichtung für Faserbänder
WO1995027817A1 (fr) Systeme d'entrainement synchronise de plusieurs arbres de machines de peignage
EP0901979B1 (fr) Dispositif d'entraínement du tambour de contact dans une machine textile pour la production de bobines à spires croisées
CH616458A5 (fr)

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: A1

Designated state(s): CH GB IT LI

17P Request for examination filed

Effective date: 19960704

17Q First examination report despatched

Effective date: 19980907

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: CSM-SAECHSISCHE SPINNEREIMASCHINEN GMBH

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH GB IT LI

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: 20000503

Ref country code: GB

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: 20000503

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

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

Ref country code: LI

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

Effective date: 20000731

Ref country code: CH

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

Effective date: 20000731

EN Fr: translation not filed
GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 20000503

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

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

26N No opposition filed