EP1173280B1 - Procede pour controler le niveau de remplissage en charbon d'un broyeur a boulet - Google Patents

Procede pour controler le niveau de remplissage en charbon d'un broyeur a boulet Download PDF

Info

Publication number
EP1173280B1
EP1173280B1 EP00917148A EP00917148A EP1173280B1 EP 1173280 B1 EP1173280 B1 EP 1173280B1 EP 00917148 A EP00917148 A EP 00917148A EP 00917148 A EP00917148 A EP 00917148A EP 1173280 B1 EP1173280 B1 EP 1173280B1
Authority
EP
European Patent Office
Prior art keywords
weight
drum
ball mill
coal
sensors
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 - Lifetime
Application number
EP00917148A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1173280A1 (fr
Inventor
Daniel Fontanille
Jacques Barbot
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.)
Alstom SA
Original Assignee
Alstom 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 Alstom SA filed Critical Alstom SA
Publication of EP1173280A1 publication Critical patent/EP1173280A1/fr
Application granted granted Critical
Publication of EP1173280B1 publication Critical patent/EP1173280B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/18—Details
    • B02C17/1805—Monitoring devices for tumbling mills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C25/00—Control arrangements specially adapted for crushing or disintegrating

Definitions

  • the invention relates to a method for checking the filling level.
  • Such a grinder, drum with cylindrical, biconical or other envelope, is more particularly used to supply pulverized coal to burners of a boiler pulverized coal for example.
  • a first known method is based on the measurement of the variation of the power absorbed by the electric motor rotating the mill drum.
  • a second known method is based on the measurement of the noise emitted by the crusher during its operation.
  • a third known method is based on the use of pneumatic probes introduced inside the mill drum.
  • Other known methods are based on the use of gamma ray probes arranged inside the grinder drum to detect the high and low level of the layer of coal in the drum.
  • the measures implemented in these known methods are dependent on the quality of the coal to be ground and in particular on its grain size of its humidity level. They are also dependent on wear cannonballs. It happens that they are not always reliable.
  • Document US-A-3 960 330 describes a process in which it is planned to measure the weight of the grinding system using weighing sensors of the drum and the support bearings of the rotational drive pinion of the drum and compare this weight measured by sensors, to a value of preset instruction to regulate the supply of material to the system grind.
  • the object of the present invention is to improve such a method and it has relates to a method for controlling the filling level of a mill ball fed with material to be ground and fitted with a drum mounted to rotate on two distant bearings, said method consisting in measuring the weight of the drum using weighing sensors arranged under bearings supporting the mill drum and compare the measured weight to a preset value set to regulate the supply of the mill to material to be ground, the vertical component of the force created by the couple being taken into account in rotation of the drum, characterized, in that said weighing sensors are gauge weighing sensors constraints and in that said vertical component is taken into account in the form of a correction of the weight measured by said sensors, made before the comparison step, by means of a first value weight representative of this vertical component and obtained from a measurement of the power of the rotary drive motor of the drum.
  • Weighing is a direct physical measurement of the filling level in coal from the mill which is not influenced by the humidity and the grain size of the grinding mass constituted by the mixture of coal and balls.
  • the result that the control method according to the invention is very reliable.
  • the weight measured can easily be corrected by a computer program to hold account of the vertical component of the rotational driving torque of the drum, the wear of the balls over time as well as the renewal of balls in the grinder. It follows that the method according to the invention allows very precisely control the level of carbon filling in a mill balls.
  • FIG. 1 is a diagram illustrating the principle of the method according to the invention.
  • FIG. 2 is a flowchart illustrating the steps of processing a computer program implementing the method according to the invention.
  • Figure 3 is a diagram showing the evolution over time of some physical parameters related to the operation of the ball mill.
  • Figure 4 is a very schematic front view of a ball mill fitted with weighing sensors for implementing the method according to the invention.
  • FIG. 5 very schematically illustrates a weighing sensor used for implementing the method according to the invention.
  • Figure 6 shows very schematically the arrangement of the weighed between two support flanges.
  • Figure 7 shows very schematically the arrangement of the sensors between the two support flanges in a triangle configuration.
  • the measurement system 10 used in the method according to the invention for controlling the level of carbon filling in a mill balls includes a set of weighing sensors 11 to 16 with gauge constraint. These sensors are arranged under the two bearings carrying the drum mill, which is rotatably mounted about a generally horizontal axis, to provide continuous electrical signals representative of a measure of the weight of the drum with its load. Each weigh sensor is compensated to measure only the vertical component of the pressure it experiences.
  • Each set of load cells is arranged under one of the two bearings on which the ends rest (pins) of the mill drum.
  • the signals provided by the sensors 11 to 16 are sent to a calculation electronics 19 suitable for taring and for rendering a continuous electrical signal P, for example industry standard 4-20 mA, representative only of the weight of the charge (coal and balls) in the drum. It will be understood that the signal P results from a sum of the different signals supplied by sensors 11 to 16.
  • the signal P at the output of the electronics 19 is digitized to be compared to a basic setpoint 20 preset in a comparator 21 whose output is applied to a conventional regulator 22 for controlling the feeder 23 in raw coal 24 from the mill.
  • the output of comparator 21 is used to regulate the operating speed of the feeder and therefore the flow feed the crusher with raw coal.
  • the basic setpoint 20 corresponding to a certain level of filling the mill with coal to obtain optimum grinding of the coal based on a certain mass of balls loaded into the grinder. This optimum filling level is known to those skilled in the art.
  • the vertical component of the drive torque in rotation of the drum acts on the weight measured by the weighing sensors 11 to 16.
  • This vertical component can thus be added to the weight of the drum of the grinder or on the contrary come to evade the weight of the grinder drum depending on whether it is pointing down or up. As a result, the weight measured P does not exactly represent the load in the mill drum.
  • the measured weight P is corrected by the calculation electronics 19, before its comparison in the comparator 21, by a weight value corresponding to the vertical component of the couple to rotate the mill drum rather than correct the setpoint 20.
  • the setpoint 20 is kept constant to simplify monitoring of the operator grinding process.
  • a summator 30 is interposed between the output of the calculation electronics 19 and the comparator 21 to correct the measured weight P by a weight value representative of the vertical component Fv of the couple drive.
  • the vertical component Fv is provided by a module 31 which receives as input the preset K1 constant and a power measurement absorbed Pabs by the crusher motor.
  • the weight loss of the load in the mill drum due to wear balls must also be taken into account to control precisely the level of coal filling in the mill because the density of the coal is very weak compared to that of cannonballs.
  • the wear rate of the balls ⁇ can be evaluated by experimentation and serve as a basis for correcting the measured weight P before its comparison with the setpoint 20 in the comparator 21.
  • the wear rate ⁇ expressed for example in kilograms / hour of operation of the mill is a pre-established constant which is multiplied by the overall time of operation of the crusher (expressed in hours) delivered by an integrator 50 for provide a resulting weight value Pb which is subtracted, in the summator 30, at the measured weight P so as not to compensate in the loop regulation, the weight loss of the balls by an intake of coal.
  • the integrator 50 functions as a clock controlled by starting and stopping the grinder.
  • FIG. 1 there is illustrated by 51, a computer program which combines the functionality of module 30, module 31, comparator 21, regulator 22 and integrator 50. It also reacts in response to a manual control 52 used to force the program to pass into a particular operating mode. Program 51 also controls the activation or extinction of a signaling lamp 53 which is linked to the particular operating mode of the program.
  • FIG. 2 illustrates the operation of the computer program 51.
  • step 100 the program begins by initializing the values 20, 33, 34 and the integrator 50.
  • the mode particular operation of the program corresponds to a calibration phase data related to the taking into account of the renewal of the balls.
  • this calibration phase is triggered periodically, by example every 100 or 200 hours.
  • the automatic triggering of this calibration phase is monitored by a specific counter hereinafter called the calibration counter.
  • the program acquires an instantaneous value of the measured weight P supplied at the output of electronics 19. As indicated above, this value corresponds to a sample of the 4-20mA standard continuous signal supplied by the electronics 19.
  • step 104 the program applies to the measured weight P the correction Pb linked to the wear of the balls and in step 105, the correction Fv linked to the effect of the drive couple.
  • step 106 the corrected measured weight is processed by an algorithm proportional and derivative (PID) type and the value of control is used in step 107 to control the feeder so that regulate the flow of carbon entering the mill.
  • PID algorithm proportional and derivative
  • a test 102 is provided to detect actuation of the manual control 52 by the operator. If the actuation of this command is detected, the program proceeds to the next step 108. If not, it proceeds to the next step 103.
  • step 108 the program controls the actuation of the signaling 53.
  • the signaling witness may for example be a witness light which serves to warn the operator that a calibration phase is in progress execution.
  • step 109 in which the calibration counter is initialized.
  • step 111 the program controls the slowing down of the feeder of the crusher to empty the stagnant coal reserve in the drum and in step 112 the time evolution of the amplitude of the power absorbed by the motor is recorded for the purpose of determining a peak amplitude.
  • the curve P represents the time evolution of the amplitude, the power absorbed by the engine during normal operation of the feeder and therefore of the grinder, then during the feeder slowing down and after resuming operation normal of the feeder and therefore of the grinder.
  • Curve A shows the variations of the speed of the feeder and the curve O shows how the noise emitted by the crusher during these different operating phases of the feeder.
  • step 113 the program determines the Ppic value corresponding to an extremum of the power absorbed by the motor during the calibration phase.
  • step 114 the program determines the weight loss of balls from the previous calibration phase based on the difference between the Ppic value obtained in step 113 and a Ppic value determined and recorded during the previous calibration phase.
  • step 115 the program calibrates the wear rate according to the weight loss of fetlock determined in step 114.
  • step 116 it registers in a register the value Ppic determined at step 113 for comparison with a new determined Ppic value in a next step 113.
  • step 117 the program accelerates the feeder so that it resumes a normal operation and then in step 118, the program commands the extinction of the signaling 53.
  • step 118 the program commands the extinction of the signaling 53.
  • curve A of FIG. 3 we see how varies the speed of the feeder according to the sequence of steps 111 and 117 indicated above.
  • the balls are renewed in the grinder without stopping the grinding. For example, they entered the crusher through the feeder.
  • the operator initiates a calibration phase to avoid drifting into account wear of the balls in the correction of the measured weight.
  • step 103 in which the program systematically tests the calibration counter to activate automatically a calibration phase. If the phase of detection is detected calibration, the program continues processing in step 108 as already described upper. Therefore, the calibration phases are chained automatically even if the operator does not request them via the manual command. These calibration phases triggered so automatic will therefore take into account the normal wear of the balls in the grinder to adapt the weight loss correction of balls by normal wear and tear.
  • FIG 4 very schematically shows a coal mill here having a cylindrical casing drum 200 rotatable about an axis horizontal A and which is terminated at its two ends by conical portions 201 and 202 supported respectively on two bearings 203 and 204 spaced one of the other along axis A.
  • This mill is used to prepare pulverulent coal supplying the burners of a boiler.
  • the feeding organ in coal to be ground is not shown in Figure 4.
  • the coal to be ground and a drying gas are introduced respectively by the annular part or trunnion 201 or 202 extending each conical end of the drum and the coal pulverized in the drying gas is evacuated by these journals against the current of raw coal.
  • the drum 200 is loaded with metal balls or with other grinding elements made of hard material which pulverize or crush the charcoal to be ground.
  • the weighing cells 11 to 13 and 14 to 16 are arranged under the bearings 203,204 to undergo the entire weight of the drum of the mill. More particularly in FIG. 6, the three sensors 11 to 13 are arranged between two parallel 210,211 soles which are themselves placed horizontally between the bearing 203 and a base 205 resting on the ground. The mounting is identical with regard to the sensors 14 to 16 arranged between the bearing 202 and base 206.
  • FIG. 5 very schematically shows a weighing sensor such as 11. It is therefore a metal cylinder 300 with a central part which is blasted to create a beam working in shear under the effect of pressure exerted on the support stirrup 301.
  • the sensors used are of the compensated type to take into account that the vertical component of the pressure on the stirrup 301.
  • the sensors 11 to 13 are arranged in a plane on the sole 211 in a triangle configuration.
  • Sensors 14 to 16 are arranged analogously in a triangle.
  • the triangle arrangement of three weighing sensors allows symmetrical configuration with respect to to the axis of rotation A of the drum and a center of gravity combined on this axis.
  • the weighing sensors used for implementing the process can by example being sensors sold by the company "Nobel Electronik".

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Disintegrating Or Milling (AREA)
  • Crushing And Pulverization Processes (AREA)
EP00917148A 1999-04-15 2000-04-07 Procede pour controler le niveau de remplissage en charbon d'un broyeur a boulet Expired - Lifetime EP1173280B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9904737A FR2792224B1 (fr) 1999-04-15 1999-04-15 Procede pour controler le niveau de remplissage en charbon d'un broyeur a boulets
FR9904737 1999-04-15
PCT/FR2000/000880 WO2000062935A1 (fr) 1999-04-15 2000-04-07 Procede pour controler le niveau de remplissage en charbon d'un broyeur a boulet

Publications (2)

Publication Number Publication Date
EP1173280A1 EP1173280A1 (fr) 2002-01-23
EP1173280B1 true EP1173280B1 (fr) 2003-10-08

Family

ID=9544447

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00917148A Expired - Lifetime EP1173280B1 (fr) 1999-04-15 2000-04-07 Procede pour controler le niveau de remplissage en charbon d'un broyeur a boulet

Country Status (14)

Country Link
US (1) US6619574B1 (zh)
EP (1) EP1173280B1 (zh)
JP (1) JP2002542018A (zh)
CN (1) CN1207101C (zh)
AT (1) ATE251497T1 (zh)
AU (1) AU754114B2 (zh)
CA (1) CA2365299A1 (zh)
CZ (1) CZ20013710A3 (zh)
DE (1) DE60005811T2 (zh)
ES (1) ES2208296T3 (zh)
FR (1) FR2792224B1 (zh)
PL (1) PL195355B1 (zh)
WO (1) WO2000062935A1 (zh)
ZA (1) ZA200107821B (zh)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1014486A3 (fr) * 2001-11-22 2003-11-04 Magotteaux Int Procede d'evaluation du taux de remplissage d'un broyeur rotatif tubulaire et dispositif pour sa mise en oeuvre.
FI115854B (fi) * 2003-01-17 2005-07-29 Outokumpu Oy Menetelmä myllyn täyttöasteen määrittämiseksi
DE102006038014B3 (de) * 2006-08-14 2008-04-30 Siemens Ag Verfahren zur Ermittlung eines Mühlenfüllstands
US7850104B2 (en) * 2007-03-21 2010-12-14 Honeywell International Inc. Inferential pulverized fuel flow sensing and manipulation within a coal mill
CN102102512B (zh) * 2009-12-22 2013-05-22 张永亮 综采工作面弯曲检测和矫直方法及其系统
CN103495487B (zh) * 2013-10-17 2016-01-06 中冶长天国际工程有限责任公司 一种磨矿机控制中调节钢球填充率的方法和装置
CN104689888B (zh) * 2013-12-09 2017-02-22 珠海市华远自动化科技有限公司 动态测定球磨机筒体内物料量、钢球量及料球比的方法
CN104697575B (zh) * 2013-12-09 2017-05-17 珠海市华远自动化科技有限公司 动态测定球磨机内物料量、钢球量及料球比的方法
WO2016022663A2 (en) * 2014-08-07 2016-02-11 Emerson Electric (Us) Holding Corporation (Chile) Limitada Monitor and control of tumbling mill using measurements of vibration, electrical power input and mechanical power
EP3448575B1 (en) * 2016-04-28 2021-04-21 Dal Elektrik Ve Otomasyon Sistemleri San. Tic. A.S. A grinding mill and material weight determining method for the same
CN106902971A (zh) * 2017-03-30 2017-06-30 太仓鸿策腾达网络科技有限公司 一种粉碎机控制系统
US10775090B2 (en) * 2017-07-11 2020-09-15 Bsh Hausgeraete Gmbh Household cooling appliance comprising a weight detection unit for determining the weight of a container of an ice maker unit
DE102017124958A1 (de) * 2017-10-25 2019-04-25 Kleemann Gmbh Verfahren zum lastabhängigen Betrieb einer Materialzerkleinerungsanlage
CN110947506A (zh) * 2019-12-20 2020-04-03 华润电力技术研究院有限公司 一种磨煤机控制方法及设备

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1218263B (de) * 1963-10-10 1966-06-02 Polysius Gmbh Vorrichtung zur Regelung des Fuellungsgrades einer Rohrmuehle
US3253744A (en) * 1964-09-22 1966-05-31 Nordberg Manufacturing Co Electrical control system for grinding mill
US3783252A (en) * 1972-04-07 1974-01-01 Westinghouse Electric Corp Control system and method for a reversed ball mill grinding circuit
US3960330A (en) * 1974-06-21 1976-06-01 Henson Howard K Method for maximizing throughput in an ore grinding system
CA1162076A (en) * 1981-05-14 1984-02-14 Marvin B. Shaver Mill load sensing system
US5325027A (en) * 1991-01-15 1994-06-28 Outokumpu Mintec Oy Method and apparatus for measuring the degree of fullness of a mill with lifting beams by monitoring variation in power consumption

Also Published As

Publication number Publication date
CZ20013710A3 (cs) 2002-02-13
DE60005811D1 (de) 2003-11-13
AU3825600A (en) 2000-11-02
JP2002542018A (ja) 2002-12-10
ATE251497T1 (de) 2003-10-15
ZA200107821B (en) 2002-11-21
CN1207101C (zh) 2005-06-22
DE60005811T2 (de) 2004-08-05
ES2208296T3 (es) 2004-06-16
AU754114B2 (en) 2002-11-07
PL351555A1 (en) 2003-05-05
US6619574B1 (en) 2003-09-16
WO2000062935A1 (fr) 2000-10-26
CA2365299A1 (fr) 2000-10-26
EP1173280A1 (fr) 2002-01-23
FR2792224A1 (fr) 2000-10-20
FR2792224B1 (fr) 2001-06-01
CN1348398A (zh) 2002-05-08
PL195355B1 (pl) 2007-09-28

Similar Documents

Publication Publication Date Title
EP1173280B1 (fr) Procede pour controler le niveau de remplissage en charbon d'un broyeur a boulet
CH632718A5 (fr) Appareil d'alimentation en poids.
FR2504650A1 (fr) Procede et installation de surveillance et de reglage en continu d'un ensemble de postes d'emplissage de bouteilles de gaz
EP3528968B1 (fr) Table de tri pour fruits à crible adaptatif
FR2544855A1 (fr) Procede et dispositif de mesure de precision de la hauteur des aubes d'un rotor
CA2918640C (fr) Dispositif de surveillance d'un systeme de transmission de puissance d'un aeronef, un aeronef muni de ce dispositif et le procede utilise
EP0745427B1 (fr) Dispositif de surveillance d'un broyeur à boulets
EP0093192B1 (fr) Procédé et dispositif de réglage du fonctionnement d'un appareil de broyage
EP2574896A2 (fr) Dispositif pour déterminer les tenseurs d'inertie et les positions des centres de gravité en trois dimensions
FR2540007A1 (fr) Procede de commande de pulverisation et de sechage de matieres inflammables passant dans un pulverisateur et procede de commande du debit de pulverisation du pulverisateur
CA2827403C (fr) Procede de calibration d'un couplemetre a torsion
FR2697332A3 (fr) Procédé destiné à déterminer le balourd d'un tambour d'une machine à laver chargée.
FR3055235A1 (fr) Dispositif de vissage a mesure de couple de sortie optimisee, et procede de determination du couple de sortie correspondant
JP2001137133A (ja) コーヒー飲料抽出装置
FR2646728A1 (fr) Dispositif de regulation du debit de recyclage de matieres pulverulentes dans une installation telle qu'un poste d'enrobage
FR2683041A1 (fr) Dispositif de mesure de la durete de grains vegetaux ou de graines vegetales.
EP2199237B1 (fr) Dispositif perfectionné d'alimentation en articles de courrier
FR2471751A1 (fr) Dispositif pour appliquer un additif fluide, notamment un plastifiant, sur un materiau filtrant pour cigarettes et similaires
EP0360693A1 (fr) Dispositif de mesure de la compacité d'un objet déformable
FR2817340A1 (fr) Procede et dispositif de controle des efforts appliques sur un assemblage combustible, dans un emballage de transport
EP0486453A1 (fr) Procédé et dispositif pour faire sonner une cloche
EP1327867A1 (fr) Ensemble de dosage en continu de produits pulvérulents ou analogues
EP1156307A1 (fr) Procédé d'étalonnage de mesure du débit massique d'une matière en vrac
WO2001021841A1 (fr) Procede de determination de la trajectoire des matieres lors du chargement d'un four a cuve
FR2641625A1 (zh)

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: 20011115

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

17Q First examination report despatched

Effective date: 20020819

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

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

Owner name: ALSTOM

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

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: 20031008

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: 20031008

Ref country code: CY

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: 20031008

Ref country code: AT

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: 20031008

Ref country code: NL

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: 20031008

Ref country code: FI

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: 20031008

Ref country code: IE

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: 20031008

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: FRENCH

REF Corresponds to:

Ref document number: 60005811

Country of ref document: DE

Date of ref document: 20031113

Kind code of ref document: P

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

Ref country code: DK

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: 20040108

Ref country code: SE

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: 20040108

Ref country code: GR

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: 20040108

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 20031008

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

Ref country code: LU

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

Effective date: 20040407

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

Ref country code: CH

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

Effective date: 20040430

Ref country code: MC

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

Effective date: 20040430

Ref country code: LI

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

Effective date: 20040430

Ref country code: BE

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

Effective date: 20040430

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2208296

Country of ref document: ES

Kind code of ref document: T3

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

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: 20040709

BERE Be: lapsed

Owner name: *ALSTOM

Effective date: 20040430

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: FR

Ref legal event code: CA

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

Ref country code: ES

Payment date: 20070427

Year of fee payment: 8

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

Ref country code: PT

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

Effective date: 20040308

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20080408

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

Ref country code: ES

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

Effective date: 20080408

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

Ref country code: FR

Payment date: 20100420

Year of fee payment: 11

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 60005811

Country of ref document: DE

Representative=s name: DREISS PATENTANWAELTE, DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 60005811

Country of ref document: DE

Representative=s name: DREISS PATENTANWAELTE PARTG MBB, DE

Effective date: 20110802

Ref country code: DE

Ref legal event code: R081

Ref document number: 60005811

Country of ref document: DE

Owner name: ALSTOM TECHNOLOGY LTD., CH

Free format text: FORMER OWNER: ALSTOM, PARIS, FR

Effective date: 20110802

Ref country code: DE

Ref legal event code: R082

Ref document number: 60005811

Country of ref document: DE

Representative=s name: RUEGER, BARTHELT & ABEL, DE

Effective date: 20110802

Ref country code: DE

Ref legal event code: R081

Ref document number: 60005811

Country of ref document: DE

Owner name: GENERAL ELECTRIC TECHNOLOGY GMBH, CH

Free format text: FORMER OWNER: ALSTOM, PARIS, FR

Effective date: 20110802

Ref country code: DE

Ref legal event code: R082

Ref document number: 60005811

Country of ref document: DE

Representative=s name: RUEGER ABEL PATENT- UND RECHTSANWAELTE, DE

Effective date: 20110802

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20111230

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

Ref country code: FR

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

Effective date: 20110502

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 60005811

Country of ref document: DE

Representative=s name: RUEGER, BARTHELT & ABEL, DE

Ref country code: DE

Ref legal event code: R082

Ref document number: 60005811

Country of ref document: DE

Representative=s name: RUEGER ABEL PATENT- UND RECHTSANWAELTE, DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 60005811

Country of ref document: DE

Representative=s name: RUEGER, BARTHELT & ABEL, DE

Ref country code: DE

Ref legal event code: R081

Ref document number: 60005811

Country of ref document: DE

Owner name: GENERAL ELECTRIC TECHNOLOGY GMBH, CH

Free format text: FORMER OWNER: ALSTOM TECHNOLOGY LTD., BADEN, CH

Ref country code: DE

Ref legal event code: R082

Ref document number: 60005811

Country of ref document: DE

Representative=s name: RUEGER ABEL PATENT- UND RECHTSANWAELTE, DE

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

Ref country code: DE

Payment date: 20170427

Year of fee payment: 18

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 60005811

Country of ref document: DE

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: 20181101