EP1883597A1 - Mechanism for controlling a thread displacement, in particular for a textile machine work station - Google Patents
Mechanism for controlling a thread displacement, in particular for a textile machine work stationInfo
- Publication number
- EP1883597A1 EP1883597A1 EP06761907A EP06761907A EP1883597A1 EP 1883597 A1 EP1883597 A1 EP 1883597A1 EP 06761907 A EP06761907 A EP 06761907A EP 06761907 A EP06761907 A EP 06761907A EP 1883597 A1 EP1883597 A1 EP 1883597A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- thread
- drive
- controller
- laying
- guide
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H54/00—Winding, coiling, or depositing filamentary material
- B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
- B65H54/28—Traversing devices; Package-shaping arrangements
- B65H54/2827—Traversing devices with a pivotally mounted guide arm
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H54/00—Winding, coiling, or depositing filamentary material
- B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
- B65H54/28—Traversing devices; Package-shaping arrangements
- B65H54/2884—Microprocessor-controlled traversing devices in so far the control is not special to one of the traversing devices of groups B65H54/2803 - B65H54/325 or group B65H54/38
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/31—Textiles threads or artificial strands of filaments
Definitions
- Thread transfer drive in particular for a workstation of a textile machine
- the invention relates to a yarn laying drive, in particular for a workstation of a textile machine, according to the preamble of patent claim 1.
- the non-prepublished document DE 103 54 587 A1 describes a special angle transmitter for the already described thread guide or wiper.
- the u. a. consists of an analog Hall sensor and a magnet, the actual angular position of the thread guide is detected and passed to an unspecified control or regulation of the thread guide drive for further processing.
- the actual angular position of the thread guide can be determined quickly and precisely by the disclosed angle encoder, this does not solve the previously mentioned problem of the previously used controllers or controls.
- the controller comprises a multi-variable control in order to precisely regulate the angular position ( ⁇ _ist) of the yarn guide by means of the at least one manipulated variable (u) for the real controlled system.
- ⁇ _ist angular position
- u manipulated variable
- the output stage and the electromechanical laying drive of the thread guide form the real or actual controlled system.
- the object of the invention is advantageously set up for generating at least one non-measured input variable in addition to the at least one measured input variable of the controller.
- ⁇ _soll predetermined angular position
- M_soll the corresponding moment
- ⁇ _rios_soll the corresponding angular acceleration
- ⁇ _soll the corresponding angular velocity
- I_soll necessary current
- the controller also has information about the moment (M_soll), the angular acceleration ( ⁇ _ gleich_soll), the angular velocity ( ⁇ _soll) and the necessary drive current (I_soll) before. Due to the precalculated laying curve, the control or the controller can thus prevent an overshoot of the yarn guide at the reversal points of the coils as well as other laying errors at high yarn laying speeds. Of course, this only applies as long as no disturbances occur.
- the setpoint values of the moment (M_soll), the angular acceleration ( ⁇ _yak_soll), the angular velocity ( ⁇ _soll) and the laying flow (I_soll) do not have to be stored in addition to the desired size of the angular position ( ⁇ _soll) for each laying curve of a winding structure, are determined via a system model, which simulates the real controlled system in terms of control engineering or mathematics, from the respective angular position ( ⁇ _soll) calculates the missing variables for the ideal controlled system.
- the setpoint of the angular positions ( ⁇ _soll) on the one hand goes directly into the controller and on the other hand into the model of the ideal controlled system in parallel.
- the torque (M_setpoint) corresponding to the respective angular position ( ⁇ _setpoint), the corresponding angular acceleration ( ⁇ _point_setpoint), the corresponding angular velocity ( ⁇ _setpoint) and the necessary routing current (I_setpoint) are determined on the basis of the ideal controlled system and are passed as output variables of the system model into the controller as another Setpoint variables for the multi-variable control.
- the controller also the comparable actual values, which consist of the actual angular position ( ⁇ _ist) of the thread guide, the current moment (M_ist), the current angular acceleration ( ⁇ _yak_ist), the current angular velocity ( ⁇ _ist) of the yarn guide and the existing laying current (I_ist) , to the incoming setpoints available. Since in practice a number of disturbances on the actual controlled system act, needed the control additionally the actual values of these variables in order to be able to compensate for a deviation of the actual values from the desired values. These actual values can, for example, be detected directly by additional sensors or measuring probes or calculated indirectly from other physically detectable measured variables and forwarded to the controller by means of a feedback.
- a further measure improving the invention provides that the comparable actual values (to the setpoint values of the controller) can be determined by a state observer according to the real controlled system as so-called estimated values ( ⁇ _dach, M_dach, ⁇ _ gleich_dach, ⁇ _dach, I_dach) and sent to the controller ( be forwarded by the already mentioned feedback), wherein the state observer at least one manipulated variable (u) of the controller and the actual angular position ( ⁇ _ist) are present as input variables.
- the state observer itself is another time-invariant model, whereby the desired actual values can be reconstructed.
- the values obtained by the observer of the state are called “estimated values", they are by no means “estimated values” but rather specific or calculated values.
- the connected observer makes it possible to communicate the internal states as they exist in the real controlled system sufficient accuracy to determine and provide the controller.
- ⁇ _act the angular position
- the additional measuring sensors can also be prevented by the condition observer employed. This can be used on the existing technical structure or the structure of the thread-laying drive.
- the status observer is designed as a Luenberger observer or as a so-called asymptotic observer.
- Luenberger observer reference is made, for example, to Otto Föllinger "Control Engineering", Dr. Alfred Wilsonhig Verlag Heidelberg 1990. On pages 502 et seq.
- the proposed Luenberger observer has the advantage that with its help the system state can be reconstructed exactly after an initial disturbance, in particular for disturbances which repeat themselves from time to time Since the observer is able to recapture the new system state, the use of the Luenberger observer makes it possible to precisely control the thread transfer drive, even in the event of disruptions.
- a weighting of the individual desired and actual values by weighting blocks is provided separately in each case in the controller, whereby the control quality of the controller can be further improved in a simple manner.
- the respective weighting of the individual values can be determined experimentally, for example.
- the individual nominal and actual values can be weighted not only linearly but also potentially or exponentially by the weighting modules.
- the control quality can be further increased in a simple manner by this measure.
- control differences of the individual setpoint / actual values can be detected by the controller, for example, after a weighting has been carried out, and the controller can carry out a correction of at least one manipulated variable (u) for a control difference not equal to zero.
- the controller can carry out a correction of at least one manipulated variable (u) for a control difference not equal to zero.
- an angle sensor for detecting the actual angular position ( ⁇ _ist) of the thread guide which has an analog Hall sensor and a magnet, in particular a permanent magnet, which are in operative connection with each other. Further details and application examples can be found in DE 103 54 587 A1. Of course, however, an optical (digital) angle sensor for detecting the actual angular position ( ⁇ _ist) of the thread guide can also be used instead of the analogue Hall sensor.
- a computer which simulates at least the system model and / or the state observer control technology or mathematically, makes it possible to implement the present invention inexpensively and easily. If such a computer is used, it can also be used for the controller. This allows the simplify technical design of the invention further, and save additional costs.
- the invention enables high thread laying frequencies while avoiding installation errors.
- the existing technical structures of the thread-laying drive are utilized.
- the angular position ( ⁇ _soll) is advantageous as a setpoint on the one hand directly into the controller and on the other hand as an input to an upstream system model, which simulates the real control system control technology or mathematically.
- this upstream system model further setpoint values, such as the angular velocity ( ⁇ _soll) corresponding to the angular position, the corresponding moment (M_soll), the corresponding angular acceleration ( ⁇ _ gleich_soll) and the necessary laying current (I_soll) are determined for a multi-variable control of the controller.
- the angular position ( ⁇ _dach) can be determined from the manipulated variable (u) of the controller and the actual angular position ( ⁇ _ist) of the thread guide via a state observer.
- the thread guide, the corresponding angular velocity ( ⁇ _dach) of the thread guide, the corresponding moment (M_dach), the corresponding angular acceleration ( ⁇ _yak_dach) and the current required for laying power (I_dach) of the drive are generated as estimated values and the controller as further input variables (by a feedback) available stand. In this way, the regulation also reacts to any disturbances that are thus compensated.
- Figure 1 is a block diagram of the exemplary control structure of the thread laying drive.
- FIG. 1 shows a block diagram for the control structure of the thread laying drive with a status observer 12.
- the predetermined angular position ( ⁇ _soll) as setpoint value 2 directly enters the controller 4.
- this angular position ( ⁇ _soll) as Input variable used for the system model 3.
- the real controlled system 10 which consists of the final stage of the yarn guide drive and the further electromechanical yarn laying drive, shown as an ideal controlled system.
- the additional setpoints 2 namely the corresponding moment (M_soll), the required laying current (I_soll), the corresponding angular velocity ( ⁇ _soll) and the corresponding angular acceleration ( ⁇ _ddling_soll) of the yarn guide, can be generated as additional input variables for the controller 4.
- a weighting of the incoming nominal quantities 2 can be provided separately for each nominal variable 2 individually by weighting modules 5.
- the controller 4 can also respond to possible disturbance variables 14 which act on the real controlled system 10, actual values which are present at the end of the real controlled system 10 are also used as the basis for a comparison with the desired values 2.
- the actual values are fed back to the controller 4.
- the desired actual values are supplied as estimated values 13 from a state observer 12 to the controller 4, since the existing actual values can only be determined with a disproportionate effort.
- the state observer 12 makes it possible to determine the comparable estimated values 13 to the required actual values on the basis of the manipulated variable 9 (u), which represents a voltage, and the controlled variable 11, which consists of the actual angular position 11 ( ⁇ _ist) of the thread guide.
- control variables 9 (u) output by the controller 4 are forwarded to the real controlled system 10, whereby the angular position of the yarn guide is changed.
- the actual angular position 11 ( ⁇ _ist) of the yarn guide is detected by an angle sensor or sensor, not shown, and represents the actual controlled variable 11 of the illustrated control system. This controlled variable 11 is the only, actually determined actual value of the entire control system.
- Setpoint generator Setpoint values / values Line model with ideal controlled system Controller Weighting blocks for weighting the setpoint Weighting blocks for weighting the actual or estimated values Calculator Setpoint / Actual comparison Actuating variable Real or actual controlled system (output stage + electromechanical filament drive) Actual value / controlled variable Observer Estimated value Disturbance variable
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Feedback Control In General (AREA)
- Spinning Or Twisting Of Yarns (AREA)
- Winding Filamentary Materials (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200510022448 DE102005022448A1 (en) | 2005-05-14 | 2005-05-14 | Thread laying drive, especially for working station of textile machine, has controller comprising multivariable control system to accurately control actual angular position of thread guide by at least one correcting variable |
PCT/EP2006/004092 WO2006122648A1 (en) | 2005-05-14 | 2006-05-02 | Mechanism for controlling a thread displacement, in particular for a textile machine work station |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1883597A1 true EP1883597A1 (en) | 2008-02-06 |
EP1883597B1 EP1883597B1 (en) | 2010-10-20 |
Family
ID=36693080
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06761907A Not-in-force EP1883597B1 (en) | 2005-05-14 | 2006-05-02 | Mechanism for controlling a thread displacement, in particular for a textile machine work station |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1883597B1 (en) |
CN (1) | CN101175685B (en) |
DE (2) | DE102005022448A1 (en) |
WO (1) | WO2006122648A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005044339B4 (en) | 2005-09-16 | 2016-01-14 | Siemens Aktiengesellschaft | Method for operating a winder machine |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB802182A (en) * | 1955-04-19 | 1958-10-01 | Pierre Roger Charles Grangie | Improvements in driving and tension control arrangements in yarn winding machines |
GB1061261A (en) * | 1964-01-03 | 1967-03-08 | Maremont Corp | Precision winder |
DE4126392C1 (en) * | 1991-08-09 | 1992-12-17 | Neumag - Neumuenstersche Maschinen- Und Anlagenbau Gmbh, 2350 Neumuenster, De | Appts. for spooling up fibres, preventing slippage and power fluctuations - includes controlling spooling speed by regulating spool spindle revolutions acccording to contact roller speed |
DE19531692C2 (en) * | 1995-08-29 | 2000-01-13 | Clemens Schaeffner | Methods for the observation of immeasurable quantities of nonlinear dynamic systems |
DE19537325C1 (en) * | 1995-10-06 | 1996-11-28 | Memminger Iro Gmbh | Yarn feed tension control on flat bed knitting machine |
GB9611015D0 (en) * | 1996-05-25 | 1996-07-31 | Holset Engineering Co | Variable geometry turbocharger control |
WO1999005055A1 (en) * | 1997-07-26 | 1999-02-04 | Barmag Ag | Process and cross-winding device for laying a thread |
DE19735581A1 (en) * | 1997-08-16 | 1999-02-18 | Schlafhorst & Co W | Bobbin drum drive |
DE19960024A1 (en) * | 1998-12-18 | 2000-06-21 | Schlafhorst & Co W | Reciprocating yarn guide for cross wound bobbin winding has an electromechanical drive and springs on adjustable suspensions to store energy at the dead points for smooth to and fro movements |
DE19858548A1 (en) * | 1998-12-18 | 2000-06-21 | Schlafhorst & Co W | Electromechanical drive for the reciprocating yarn guide for winding cross wound bobbins has a structured air gap with magnetic field lines through it acting on a coil at the yarn guide |
CN1096402C (en) * | 1999-05-19 | 2002-12-18 | 陈仁惠 | Adjustable varying or fixed yarn feeder |
DE19961880B4 (en) * | 1999-08-20 | 2005-10-06 | Baumüller Nürnberg GmbH | Electric drive system for active vibration damping |
JP3292177B2 (en) * | 1999-09-01 | 2002-06-17 | 村田機械株式会社 | Traverse device |
DE19950285A1 (en) * | 1999-10-19 | 2001-04-26 | Rieter Ag Maschf | Swinging arm traverse for winder is driven by computer controlled servomotor according to a continuously corrected movement pattern |
DE10014813B4 (en) * | 2000-03-27 | 2005-10-06 | Betriebsforschungsinstitut VDEh - Institut für angewandte Forschung GmbH | Method and device for positionally winding a rolled hot strip in a coiler |
DE10019951A1 (en) * | 2000-04-20 | 2001-10-31 | Sig Positec Automation Gmbh | Device for winding a thread on a bobbin |
CN2459332Y (en) * | 2000-06-20 | 2001-11-14 | 陈仁惠 | Multi-function yarn feeder |
DE10060043A1 (en) * | 2000-12-02 | 2002-06-06 | Cetex Chemnitzer Textilmaschin | Monitor for a running yarn, at a textile machine, has a yarn guide linked to a tension sensor, to give an accurate yarn tension measurement at any time point without resonance interference |
DE10135542B4 (en) * | 2001-07-20 | 2005-07-07 | Wincor Nixdorf International Gmbh | A method for controlling a roll storage and roll storage for storing sheet-shaped objects |
DE10354587A1 (en) * | 2003-11-21 | 2005-06-16 | Saurer Gmbh & Co. Kg | Electromotor drive for the reciprocating yarn guide at a bobbin winder, to produce cross wound bobbins, has an angular sensor as a permanent ring magnet keyed to the motor shaft and a static Hall integrated circuit |
-
2005
- 2005-05-14 DE DE200510022448 patent/DE102005022448A1/en not_active Withdrawn
-
2006
- 2006-05-02 DE DE502006008133T patent/DE502006008133D1/en active Active
- 2006-05-02 WO PCT/EP2006/004092 patent/WO2006122648A1/en active Search and Examination
- 2006-05-02 EP EP06761907A patent/EP1883597B1/en not_active Not-in-force
- 2006-05-02 CN CN2006800166640A patent/CN101175685B/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO2006122648A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP1883597B1 (en) | 2010-10-20 |
CN101175685A (en) | 2008-05-07 |
CN101175685B (en) | 2011-05-25 |
DE102005022448A1 (en) | 2006-11-16 |
DE502006008133D1 (en) | 2010-12-02 |
WO2006122648A1 (en) | 2006-11-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0754317B1 (en) | Device designed to compensate for non-linearity of machine shafts | |
DE2265245C2 (en) | Arrangement for controlling a relative movement between the fixed and the movable member of a two-phase, synchronous drive system | |
EP0453622A1 (en) | Method and apparatus for winding yarn on a bobbin | |
DE102015107583B4 (en) | Positioning drive and method for positioning an output element | |
DE10333067B4 (en) | Electric actuator and method of controlling the same | |
DE2951917C2 (en) | Device for controlling the tension of an electrical conductor wire in a winding machine | |
DE102006006162A1 (en) | controller structure | |
EP0906239A1 (en) | Method for controlling a crosswinding device | |
EP3464862B1 (en) | Method and apparatus for calibrating an actuator system | |
DE4335239C1 (en) | Method for positioning an actuator | |
EP1883597B1 (en) | Mechanism for controlling a thread displacement, in particular for a textile machine work station | |
WO2017140455A1 (en) | Speed-dependent compensation of positional errors | |
EP3672808A1 (en) | Control of printing presses having a plurality of main drive motors | |
EP3864746A1 (en) | Method for determining the rotor position of a bldc motor | |
DE4400482A1 (en) | Correction procedure between the electrical phase angle and the mechanical output drive angle of a stepping motor | |
WO2015078763A1 (en) | Traversing unit and method for controlling a traversing unit | |
WO1997025661A1 (en) | Method for the decentralized control of a motor drive | |
DE2340636A1 (en) | Continuous casting with stepwise bar extn. from horizontal mould - using program-controlled direct current motor on driving rolls | |
EP3901076A1 (en) | Method for high-precision thread delivery during winding of a bobbin | |
EP0901979A1 (en) | Driving of the touch roller of a textile machine for making cross-wound bobbins | |
EP3825787B1 (en) | Method for rapid control of the mean of a regulating variable, data carrier with program, and engine control for carrying out said method and drive motor with such an engine control | |
DE102004028877A1 (en) | Rotary input type encoder adjusting method for electrical servo motor, involves determining angular deviation of reference and actual angular position, and adjusting encoder according to angular correction determined based on deviation | |
DE1812248C3 (en) | Device for driving a moving body and for controlling its current position during its movement | |
DE10253253A1 (en) | Spool winding machine has processing unit and regulation stage allowing uninterrupted rotation of turntable during spool winding | |
DE1526518A1 (en) | Arrangement for equal load distribution to several internal combustion engines |
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 |
|
17P | Request for examination filed |
Effective date: 20071214 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): BE CH DE IT LI TR |
|
RBV | Designated contracting states (corrected) |
Designated state(s): BE CH DE IT LI TR |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: OERLIKON TEXTILE GMBH & CO. KG |
|
DAX | Request for extension of the european patent (deleted) | ||
17Q | First examination report despatched |
Effective date: 20091112 |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): BE CH DE IT LI TR |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REF | Corresponds to: |
Ref document number: 502006008133 Country of ref document: DE Date of ref document: 20101202 Kind code of ref document: P |
|
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 |
Effective date: 20110721 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 502006008133 Country of ref document: DE Effective date: 20110721 |
|
BERE | Be: lapsed |
Owner name: OERLIKON TEXTILE G.M.B.H. & CO. KG Effective date: 20110531 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20110531 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: TR Payment date: 20120502 Year of fee payment: 7 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R081 Ref document number: 502006008133 Country of ref document: DE Owner name: SAURER GERMANY GMBH & CO. KG, DE Free format text: FORMER OWNER: OERLIKON TEXTILE GMBH & CO. KG, 42897 REMSCHEID, DE Effective date: 20130918 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PUE Owner name: SAURER GERMANY GMBH AND CO. KG, DE Free format text: FORMER OWNER: OERLIKON TEXTILE GMBH AND CO. KG, DE Ref country code: CH Ref legal event code: NV Representative=s name: SCHMAUDER AND PARTNER AG PATENT- UND MARKENANW, CH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PCOW Free format text: NEW ADDRESS: LEVERKUSER STRASSE 65, 42897 REMSCHEID (DE) |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 20140526 Year of fee payment: 9 Ref country code: IT Payment date: 20140524 Year of fee payment: 9 Ref country code: DE Payment date: 20140603 Year of fee payment: 9 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: TR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20130502 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 502006008133 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150502 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150531 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150531 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20151201 |