EP1288501B1 - Capteur de pression pour pompe - Google Patents

Capteur de pression pour pompe Download PDF

Info

Publication number
EP1288501B1
EP1288501B1 EP02018885A EP02018885A EP1288501B1 EP 1288501 B1 EP1288501 B1 EP 1288501B1 EP 02018885 A EP02018885 A EP 02018885A EP 02018885 A EP02018885 A EP 02018885A EP 1288501 B1 EP1288501 B1 EP 1288501B1
Authority
EP
European Patent Office
Prior art keywords
drive motor
pressure sensor
motor housing
end wall
wall
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
EP02018885A
Other languages
German (de)
English (en)
Other versions
EP1288501A2 (fr
EP1288501A3 (fr
Inventor
John Olsen
Tom Jaeger
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.)
Grundfos AS
Original Assignee
Grundfos AS
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 Grundfos AS filed Critical Grundfos AS
Publication of EP1288501A2 publication Critical patent/EP1288501A2/fr
Publication of EP1288501A3 publication Critical patent/EP1288501A3/fr
Application granted granted Critical
Publication of EP1288501B1 publication Critical patent/EP1288501B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/02—Stopping of pumps, or operating valves, on occurrence of unwanted conditions
    • F04D15/0209—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the working fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps

Definitions

  • the invention relates to an electric drive motor for a submerged in wastewater centrifugal pump according to the preamble of claim 1.
  • centrifugal pump which is driven by an electric drive motor, from a well in which the wastewater has collected, the centrifugal pump is immersed with its suction in the collected wastewater.
  • the electric drive motor is associated with a pressure sensor, which is acted upon by the amount of waste water when its level has reached a predetermined upper level in the well in which the pressure sensor is located.
  • the pressure sensor then passes a signal via a cable to an electrical switching unit, which turns on the electric drive motor, whereupon the centrifugal pump begins to pump until the waste water level has dropped so low that only the suction of the centrifugal pump is immersed in the wastewater in the well.
  • the centrifugal pump then turns off and then on again when the above-mentioned upper switching level is reached again.
  • the pressure sensor hangs on the electrical cable running in the well, leading to said switching unit located at a waste-water-free location inside or outside the well. From there, an electrical control cable runs to the drive motor of the centrifugal pump to turn this on and off.
  • the described arrangement and assembly of the pressure sensor are time-consuming and costly and in the case of maintenance of the centrifugal pump and the drive motor formed aggregates and / or the well, the free-hanging cable can be easily damaged with the pressure sensor. Furthermore, the pressure sensor and the cable carrying it can be destroyed by particularly aggressive wastewater and thus become inoperative.
  • US Pat. No. 2,804,516 A and US Pat. No. 2,969,740 A disclose fluid pumps which have a pressure sensor arranged in the pump housing. With sufficient fluid level here is a pressurization of the pressure sensor with the liquid surrounding the pump via narrow, tubular inlet channels formed. Due to the narrow configuration of the inlet channels, even relatively small solid particles floating in the liquid can clog the inlet channels and thus at least impair the function of the controls and thus of the pump and prevent it at worst.
  • the object of the invention is to improve an electric drive motor of the initially mentioned type, in which the pressure sensor is arranged quickly and inexpensively mounted and damage-resistant and reliable.
  • the inventive arrangement of the pressure sensor ie by its arrangement within the housing of the electric drive motor, the pressure sensor is arranged protected, so that it can not be damaged especially during maintenance of the motor pump unit in the well and maintenance of the well inside and so far functionally reliable is. Furthermore, the pressure sensor is easy and quick and inexpensive mountable during engine production, especially the cable to which the pressure sensor otherwise suspended, now omitted.
  • the internal arrangement of the pressure sensor in the motor housing eliminates protection means, for example in the form of a protective jacket, which avoid that the pressure sensor is exposed to the damaging effects of aggressive wastewater.
  • Another important advantage is that, in a space-saving manner, an extremely large inlet cross-section is created for the introduction of the water pressure into the connecting channel for acting on the pressure sensor connected thereto with the respective prevailing water pressure. As a result, there is virtually no risk of blockage for the inlet channel with the still further advantage that the separate cleaning of the inlet channel between the usual maintenance intervals of the wastewater pump is not required.
  • the inventive design of the inlet channel as an annular gap between the peripheral wall of the motor housing and the opposite wall of this wall surface of the front end wall of the motor housing ensures that the inlet channel is a very large inlet cross-section, which can extend at most around the circumference of the engine is available, so that a relatively large amount of solids in the wastewater does not lead to a function-obstructing blockage of the inlet channel, because there is still sufficient free inlet cross-section available.
  • the width of the annular gap is smaller than the depth of the adjoining and leading to the pressure sensor connection channel.
  • Fig. 1 shows a motor pump unit for removing waste water, which have collected in a conventional manner in a well or reservoir.
  • This unit consists of an electric drive motor 1 and a centrifugal pump 2. Both parts are held together in the usual manner by means of a clamping ring 30.
  • the drive motor 1 comprises a motor housing 3 with a peripheral wall 4 and a front end wall 5, wherein the front end wall is connected by means of the clamping ring 30 with the centrifugal pump 2.
  • a space 6 is provided, which is formed for example as an annular space and is located between the peripheral wall 4 and a stator 7, which carries the usual electric stator 8 of the motor 1.
  • the usual electrical terminals and other electrical control parts 9 are provided for switching on and off of the drive motor 1.
  • a pressure sensor 10 is arranged, in the example shown at a front end flange 7a of the stator 7.
  • This pressure sensor is acted upon by the water pressure of the waste water, in which the centrifugal pump is at least partially immersed.
  • an inlet channel 11 is provided, which is formed between the peripheral wall 4 of the motor housing 3 and the front end wall 5 of the motor housing.
  • At the inlet channel 11 is followed by a running through the front end wall connecting channel 12, on the other hand extends to the pressure sensor 10.
  • the pressure sensor is acted upon by the currently prevailing water pressure of the wastewater and in turn directs corresponding signals to the electrical control parts 9 in the engine compartment. 6
  • the annular gap 11 which preferably extends in the axial extent advantageously around the entire outer circumference of the front end wall 5 of the motor housing 3, through the outer, for example, cylindrical peripheral surface 5a of the peripheral wall 5 and in the example shown by the axially projecting in the direction of the pump section 2 4a of the peripheral wall 4 of the motor housing 3 is formed.
  • the width of the annular gap 11 is about 1.5 to 4.0 mm, advantageously about 2.0 to 3.0 mm.
  • the annular gap 11 is open with its annular inlet region 11 a to the surroundings of the drive motor.
  • the circumferential annular gap can also extend in the radial direction or have a radial annular inlet region.
  • the peripheral wall 4 and the end wall 5 of the motor 1 radially extending end portions or are formed accordingly (not shown).
  • an inlet groove system may be provided which opens into the connecting channel 12 which extends as a bore through the front end wall 5 through to the inner space 6 of the engine 1.
  • Such a groove system comprises z. B.
  • a common arcuate or annular inlet groove shallow depth which is partially formed in the peripheral wall 4 or in the end wall 5 or in these two walls, and a plurality of outgoing from her and extending to the connecting channel 12 inlet grooves (not shown).
  • the width of the entrance groove is chosen as the width of the annular gap.
  • the pressure sensor 10 located in the space 6 has a rigid housing 13, which is provided with an extension 14, which has a connection channel 15.
  • the extension 14 protrudes into the connection channel 12, so that the pressure sensor 10 is acted upon via the connection channel 15 from the connection channel 12.
  • the stator support 7 is connected to a front end flange 7 a, which in turn is fixedly connected to the front end wall 5 of the motor housing 3.
  • the end flange 7 a is provided with a passage 16 which forms an extension portion of the connection channel 12. If an end flange 7 a is not provided, it is also possible to attach the pressure sensor 10 directly to the front end wall 5.
  • the housing 13 of the pressure sensor is provided with two through holes 17 and 18 through which screws (not shown) extend, with which the pressure sensor is screwed to the end flange 7a and / or to the front end wall 5.
  • the extension 14 of the housing 13 is provided with a front annular groove 19, in which an elastic sealing ring 20 is inserted to seal the connecting channel 12 with respect to the inner space 9 of the motor housing 3.
  • the pressure sensor 10 is connected within the space 6 by means of a short electrical line 21 to the also located in the space 6 electrical control parts 9 of the drive motor 1.
  • the advantageously formed in the form of two holes meeting the connecting channel 12 has a diameter which is greater than the width of the inlet channel 11 in the form of the annular gap.
  • the diameter of the connection channel is 4.0 to 8.0 mm.
  • a Zuströmrille 22 extending at least partially around the surface 5a, which opens into the connecting channel 12 via a groove-shaped cross-connection 23.
  • This inflow groove 22 is advantageously provided near the inlet region 11 a of the annular gap-shaped inlet channel 11.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Measuring Fluid Pressure (AREA)
  • Control Of Non-Positive-Displacement Pumps (AREA)
  • Motor Or Generator Frames (AREA)

Claims (8)

  1. Moteur de commande électrique pour une pompe centrifuge immersible dans des eaux usées, le moteur de commande présentant un carter de moteur avec une paroi périphérique et une paroi d'extrémité avant pouvant être reliée à la pompe centrifuge, et un capteur de pression pouvant être sollicité par les eaux usées étant affecté au moteur de commande pour le démarrage et l'arrêt du moteur de commande, ledit capteur étant disposé dans un espace (6) prévu dans le carter de moteur (3), un canal d'entrée (11) ouvert vers l'environnement du moteur de commande (1) étant prévu entre la paroi périphérique (4, 4a) et une surface (5a), opposée à celle-ci, de la paroi d'extrémité (5) avant, et un canal de liaison (12) qui s'étend au moins à travers la paroi d'extrémité (5) avant jusqu'à l'espace (6) adjacent à cette paroi d'extrémité et de là conduit vers le capteur de pression (10), étant raccordé au canal d'entrée, caractérisé en ce que le canal d'entrée (11) est réalisé en tant que fente annulaire entre la paroi périphérique (4, 4a) du carter de moteur (3) et la surface (5a), opposée à cette paroi, de la paroi d'extrémité (5) avant du carter de moteur (3).
  2. Moteur de commande selon la revendication 1, caractérisé en ce que la largeur de la fente annulaire (11) est plus petite que le diamètre du canal de liaison (12).
  3. Moteur de commande selon la revendication 1 ou 2, caractérisé en ce que, dans la surface (5a), opposée à la paroi périphérique (4, 4a), de la paroi d'extrémité (5) avant du carter de moteur (3), il est prévu une rainure d'afflux (22) s'étendant au moins en partie autour de la surface (5a) opposée et débouchant dans le canal de liaison (12).
  4. Moteur de commande selon la revendication 3, caractérisé en ce que la rainure d'afflux (22) est prévue près de la zone d'entrée (11a) de la fente annulaire (11).
  5. Moteur de commande selon l'une des revendications 1 à 4, caractérisé en ce que le capteur de pression (10) présente un boîtier (13) qui est doté d'un prolongement (14) dépassant dans le canal de liaison (12) et ayant un canal de raccordement (15).
  6. Moteur de commande selon l'une des revendications 1 à 5, caractérisé en ce que, dans le carter de moteur (3) il est prévu un support de stator (7), en ce que l'espace (6) précité est réalisé en tant qu'espace annulaire entre le support de stator (7) et la paroi périphérique (4) du carter de moteur (3), et en ce que le capteur de pression (10) est monté dans la zone de la paroi d'extrémité (5) avant du carter de moteur (3) et raccordé à une électronique de commande (9) prévue dans l'espace (6) du carter de moteur (3) pour le démarrage et l'arrêt du moteur de commande (1).
  7. Moteur de commande selon la revendication 6, caractérisé en ce que le support de stator (7) présente une bride d'extrémité (7a) assemblée avec la paroi d'extrémité (5) avant du moteur de commande (1), et en ce que le capteur de pression (10) est monté sur la bride d'extrémité (7a), qui présente un passage (16) réalisé sous forme d'un prolongement du canal de liaison (12).
  8. Moteur de commande selon l'une des revendications 1 à 7, caractérisé en ce que la surface (5a) opposée de la paroi d'extrémité (5) précitée du carter de moteur (3) est réalisée en tant que surface périphérique cylindrique qui est chevauchée par une portion d'extrémité (4a) axiale de la paroi périphérique (4) du carter de moteur (3) à distance de l'ouverture de la fente annulaire (11).
EP02018885A 2001-08-31 2002-08-24 Capteur de pression pour pompe Expired - Lifetime EP1288501B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10142750A DE10142750A1 (de) 2001-08-31 2001-08-31 Elektrischer Antriebsmotor für eine in Abwasser eintauchbare Kreiselpumpe
DE10142750 2001-08-31

Publications (3)

Publication Number Publication Date
EP1288501A2 EP1288501A2 (fr) 2003-03-05
EP1288501A3 EP1288501A3 (fr) 2004-01-21
EP1288501B1 true EP1288501B1 (fr) 2007-04-18

Family

ID=7697298

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02018885A Expired - Lifetime EP1288501B1 (fr) 2001-08-31 2002-08-24 Capteur de pression pour pompe

Country Status (3)

Country Link
EP (1) EP1288501B1 (fr)
AT (1) ATE360147T1 (fr)
DE (2) DE10142750A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009005154A1 (de) * 2009-01-15 2010-07-22 Wilo Se Vorrichtung zur Verbindung einer elektromotorischen Antriebseinheit mit einer Pumpeneinheit
DE102015010728A1 (de) * 2015-08-17 2017-02-23 Thomas Magnete Gmbh Motorpumpenaggregat

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2804516A (en) * 1954-02-25 1957-08-27 Gen Electric Sump pump liquid level control switch
US2969740A (en) * 1957-05-27 1961-01-31 American Crucible Products Com Pump control
ES2026412A6 (es) * 1990-11-15 1992-04-16 Transpar Iberica Sa Bomba para lavaparabrisas provista de dispositivo sensor de nivel.

Also Published As

Publication number Publication date
DE50209958D1 (de) 2007-05-31
ATE360147T1 (de) 2007-05-15
EP1288501A2 (fr) 2003-03-05
EP1288501A3 (fr) 2004-01-21
DE10142750A1 (de) 2003-04-03

Similar Documents

Publication Publication Date Title
DE69206082T2 (de) Motorkühlungsvorrichtung.
DE4418640C2 (de) Brennstoffpumpe für Kraftfahrzeuge
EP2643596B1 (fr) Pompe auto-nettoyante à rouet centrifuge hélicoïdal avec écoulement auxiliaire de rinçage derrière le rouet
DE4428633A1 (de) Kraftstoffpumpe zum Zuführen von Kraftstoff zu einem Fahrzeugmotor
EP0673601A1 (fr) Filtre pour aquariums
EP1097070B1 (fr) Groupe hydraulique
EP0629780B1 (fr) Pompe submersible
DE102005034341A1 (de) Tauchmotorpumpe mit Kühlmantel
EP3519699B1 (fr) Arrangement de pompage
EP1288501B1 (fr) Capteur de pression pour pompe
EP2766608B1 (fr) Pompe centrifuge pour fluide contenant des particules solides avec fermeture d'un interstice
DE10157880B4 (de) Fluidpumpe mit Filter
DE102006023379A1 (de) Flüssigkeitspumpe
DE3622269C2 (fr)
DE29514402U1 (de) Vorrichtung zum Verbessern des Ansaugverhaltens von Strömungsförderpumpen
DE19548471C1 (de) Umwälzpumpenaggregat
DE19851762A1 (de) Hydraulikaggregat
EP1211422B1 (fr) Moteur électrique à rotor noyé pour une pompe
WO2017125297A1 (fr) Dispositif de purge pour une pompe dans un réservoir
EP1717208B1 (fr) Dispositif de traitement de fluides, en particulier de traitement des eaux usées, avec une pile de disques
DE10216402A1 (de) Kreiselpumpe mit integriertem Magnetfilter
EP3733040A1 (fr) Appareil électroménager à circulation d'eau
EP1217217A1 (fr) Installation d'alimentation d'eau
EP1210982A1 (fr) Entraínement rotatif pour une outil hydraulique
DE3243067A1 (de) Innenlaeuferzahnradoelpumpe fuer kraftfahrzeugverbrennungsmotoren

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: A2

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

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

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

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

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

RIC1 Information provided on ipc code assigned before grant

Ipc: 7F 04D 15/02 A

Ipc: 7F 04D 13/08 B

Ipc: 7F 04D 29/42 B

17P Request for examination filed

Effective date: 20040513

AKX Designation fees paid

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

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): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

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

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: 20070418

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: LANGUAGE OF EP DOCUMENT: GERMAN

REF Corresponds to:

Ref document number: 50209958

Country of ref document: DE

Date of ref document: 20070531

Kind code of ref document: P

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

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: 20070718

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

Effective date: 20070704

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070729

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070918

ET Fr: translation filed
NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

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

Ref country code: BG

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: 20070718

Ref country code: CZ

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: 20070418

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: 20070418

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: 20070418

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: 20070418

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

BERE Be: lapsed

Owner name: GRUNDFOS A/S

Effective date: 20070831

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

Ref country code: SK

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: 20070418

26N No opposition filed

Effective date: 20080121

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: 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: 20070719

Ref country code: LI

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

Effective date: 20070831

Ref country code: CH

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

Effective date: 20070831

Ref country code: MC

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

Effective date: 20070831

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: 20070831

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

Ref country code: AT

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

Effective date: 20070824

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

Ref country code: EE

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: 20070418

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

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: 20070418

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: 20070824

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070418

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

Ref country code: GB

Payment date: 20130628

Year of fee payment: 12

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

Ref country code: FR

Payment date: 20130718

Year of fee payment: 12

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

Ref country code: IT

Payment date: 20130703

Year of fee payment: 12

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20140824

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: 20140824

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20150430

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

Ref country code: GB

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

Effective date: 20140824

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: 20140901

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

Ref country code: DE

Payment date: 20210824

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 50209958

Country of ref document: DE