EP0302464A2 - Dispositif de régulation d'une centrifugeuse filtrante - Google Patents

Dispositif de régulation d'une centrifugeuse filtrante Download PDF

Info

Publication number
EP0302464A2
EP0302464A2 EP88112593A EP88112593A EP0302464A2 EP 0302464 A2 EP0302464 A2 EP 0302464A2 EP 88112593 A EP88112593 A EP 88112593A EP 88112593 A EP88112593 A EP 88112593A EP 0302464 A2 EP0302464 A2 EP 0302464A2
Authority
EP
European Patent Office
Prior art keywords
sensor
centrifuge
filling
arm
coupled
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
EP88112593A
Other languages
German (de)
English (en)
Other versions
EP0302464B1 (fr
EP0302464A3 (en
Inventor
Peter Sedlmayer
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.)
Mannesmann Demag Krauss Maffei GmbH
Original Assignee
Krauss Maffei AG
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 Krauss Maffei AG filed Critical Krauss Maffei AG
Publication of EP0302464A2 publication Critical patent/EP0302464A2/fr
Publication of EP0302464A3 publication Critical patent/EP0302464A3/de
Application granted granted Critical
Publication of EP0302464B1 publication Critical patent/EP0302464B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B13/00—Control arrangements specially designed for centrifuges; Program control of centrifuges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B11/00—Feeding, charging, or discharging bowls
    • B04B11/04—Periodical feeding or discharging; Control arrangements therefor
    • B04B11/043—Load indication with or without control arrangements

Definitions

  • the invention relates to a device for controlling a filter centrifuge according to the preamble of claim 1.
  • a filter centrigue of this type is known from DE-OS 25 25 232, in which the layer height of the centrifuge content is tapped by means of a sensor arm.
  • the disadvantage of this device is that no statements can be made about the particular nature of the centrifuge contents. It cannot be determined whether the surface of the layer in the rotating sieve drum consists of suspension, washing liquid or solids.
  • the object of the invention is therefore to provide a device with which the particular nature of the surface of the centrifuge contents can be determined at any time of operation of the filter centrifuge.
  • the invention is based on the knowledge that a suspension has different physical properties than, for example, a solid cake or washing liquid.
  • thermocouple which is brought into contact with the surface by the sensor arm. Since each material has certain friction values and, accordingly, certain frictional heat values, the measured values generated by the thermocouple provide precise information about the nature of the centrifuge content at all times.
  • Another advantageous sensor for determining the physical Properties of the centrifuge filling consists of a sensor for determining the electrical conductivity.
  • the measurement signals generated by one or more sensors are thus varied in accordance with at least one such physical parameter of the filling surface, which shows different values for liquids, suspensions and solids, whereby in addition to the distinction between the aforementioned media, characteristic values are also obtained for each medium itself can, for example, allow a precise assessment of the respective temperature and the solids concentration in a suspension.
  • the sensor arm equipped with at least one sensor is provided with a measuring device for determining the radial position of the filling surface.
  • This measuring device expediently consists of a rotary encoder which is coupled to the sensor arm consisting of a sensor contacting the filling surface and a sensor shaft.
  • the solid-liquid separation in filter centrifuges can be optimized for any desired operating result.
  • the throughput and the residual moisture of the solid cake can be called up at any time in batch operation of the centrifuge.
  • FIGS. 1 and 2 show a screening drum 1, the drum interior 2 of which is closed by a closed drum wall 3, a curb ring 4 with curb 5 and a screen jacket 6 is delimited.
  • the sieve drum 1 rotates about the centrifuge axis 7 and is surrounded by a housing 8 which is closed by a housing cover 9.
  • a measuring device 11 is fastened in the housing cover 9 by means of a flange 10, which carries a sensor arm 12 projecting into the drum interior 2 and a rotation angle sensor 13 located outside the centrifuge housing.
  • the sensor arm 12 consists of a sensor 14 and a sensor shaft 15. At the free end of the sensor 14 there is the contact surface 16 in which one or more sensors are arranged which generate a measurement signal representing the physical properties of the centrifuge filling.
  • a measuring signal ⁇ representing the position of the contact surface 16 or a layer thickness of the centrifuge filling is generated by the rotary angle sensor 13.
  • the centrifuge filling consists of a solid layer or a solid cake 17, the layer thickness (cake height) of which is denoted by h k .
  • the solid layer is overlaid by a liquid layer 18, which can consist of washing liquid or filtrate liquid.
  • the sensor arm 12 can be pivoted in the direction of the arrows 19. For the measurement, the sensor arm 12 is pressed onto the filling surface 20 with little force, so that the contact surface 16 always remains in contact with the filling surface 20.
  • the sensor 14 is arranged in the trailed position with respect to the direction of rotation of the drum (arrow 21).
  • the axis 22 of the sensor shaft 15 is parallel to the centrifuge axis 7.
  • the sectional view of the measuring device 11 according to FIG. 3 shows the sensor 14, in whose contact surface 16 a thermocouple 23 is arranged.
  • the sensor 14 is shown in FIG. 4 in cross section like a Knife edge designed, the front edge 24 of the sensor 14 corresponding to the cutting edge being directed against the direction of rotation (arrow 21) of the sieve drum 1.
  • This configuration and arrangement of the contact area of the sensor 14 has the advantage that the contact with the filling surface 20 on the one hand provides reliable measurement results and on the other hand can be carried out largely without splashing.
  • the sensor 14 is detachably connected to the sensor shaft 15 via a plug 25 which has both mechanical and electrical coupling devices.
  • the sensor shaft 15 is pivotally mounted and leads the electrical signal line of the thermocouple 23 to the outside.
  • the rotation angle sensor 13 is also connected to the sensor shaft 15.
  • the signal lines for the measurement signal generated by the thermocouple 23 and the measurement signal ⁇ generated by the rotary encoder 13 are connected to a computer which delivers output signals for optimum centrifuge control in accordance with stored characteristic curves.
  • the diagram shown in FIG. 5 shows the temperature curve displayed by the thermocouple 23, with the sensor arm 12 at different pivoting positions.
  • T a is the temperature when the sensor arm is pivoted freely into the centrifuge space
  • T b the temperature when the sensor arm comes into contact with the surface 20 of the liquid layer 18 and designated by T c the temperature which arises when the liquid from the liquid layer 18 is immersed in the solid cake.
  • the points F1 E and F E mark exactly the point in time when the temperature sensor comes into contact with the liquid surface and when the liquid is immersed in the solid cake, whereby the rotary angle sensor provides a precise value for the respective layer height of the centrifuge filling at all times.
  • a variable, self-adjustable cycle time with a precise end time (in this case the immersion point F E ) is made possible, whereupon subsequent steps can be followed with an exactly precise time sequence.
  • the immersion point F E is set, further filling processes with suspension can follow in repeated sequence until the filter cake has reached a layer thickness in relation to the beltline 5, in which there is still enough space for the washing agent to be applied to the solid cake in one or more cycles .
  • the filtration speed and the volume of the solid cake can be measured, it is also possible to determine the throughputs of suspension liquid, washing medium and the remaining amount of solid or to be discharged with the peeling device in connection with a computer. Likewise, the residual moisture content of the solid can be queried at any time.
  • the dry spin cycle follows, in which the washing medium still present in the solid cake is removed. This phase was previously part of a fixed cycle time without taking into account the fluctuations caused by different filtering and washing times.
  • the time for dry spinning is determined by the computer in accordance with characteristic curves in which empirically determined influencing variables are taken into account.
  • Such an influencing variable can be given in the filtering properties of the so-called base layer, which changes from batch to batch, which remains on the screen surface after each peeling process after the dry centrifugation and which becomes increasingly denser, thus becoming increasingly impermeable and accordingly requiring an increasingly longer dry centrifuging time.
  • the invention enables variable and self-adjusting cycle times, with which a centrifuge can be applied to any desired operating result with little effort, e.g. low residual moisture, high filtration speed, low spin drying time and the like can be optimized.

Landscapes

  • Centrifugal Separators (AREA)
EP88112593A 1987-08-07 1988-08-03 Dispositif de régulation d'une centrifugeuse filtrante Expired - Lifetime EP0302464B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3726227 1987-08-07
DE19873726227 DE3726227A1 (de) 1987-08-07 1987-08-07 Vorrichtung zum ergebnisabhaengigen steuern einer filterzentrifuge

Publications (3)

Publication Number Publication Date
EP0302464A2 true EP0302464A2 (fr) 1989-02-08
EP0302464A3 EP0302464A3 (en) 1990-01-17
EP0302464B1 EP0302464B1 (fr) 1991-11-06

Family

ID=6333233

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88112593A Expired - Lifetime EP0302464B1 (fr) 1987-08-07 1988-08-03 Dispositif de régulation d'une centrifugeuse filtrante

Country Status (5)

Country Link
US (1) US4900453A (fr)
EP (1) EP0302464B1 (fr)
JP (1) JP2540358B2 (fr)
DE (1) DE3726227A1 (fr)
ES (1) ES2026607T3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5032258A (en) * 1988-05-19 1991-07-16 Krauss-Maffei Aktiengesellschaft Filter centrifuge for separating suspensions with system to release accumulated gas
AT399300B (de) * 1993-09-23 1995-04-25 Tauss Johann Gmbh Verfahren und vorrichtung zur automatischen füllstandsüberwachung von zentrifugen
CN108027433A (zh) * 2015-08-03 2018-05-11 联邦科学和工业研究组织 监视系统和方法

Families Citing this family (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3925198A1 (de) * 1988-09-01 1990-03-15 Krauss Maffei Ag Vorrichtung zum ergebnisabhaengigen steuern einer filterzentrifuge
EP0456861A1 (fr) * 1989-07-29 1991-11-21 Krauss-Maffei Aktiengesellschaft Dispositif de régulation d'une centrifugeuse filtrante
DE3940057A1 (de) * 1989-12-04 1991-06-06 Krauss Maffei Ag Verfahren und vorrichtung zum betrieb einer filterzentrifuge
DE3940053A1 (de) * 1989-12-04 1991-06-06 Krauss Maffei Ag Verfahren und vorrichtung zum abziehen von fluessigkeiten aus einer zentrifuge
DE4004584A1 (de) * 1990-02-15 1991-08-22 Krauss Maffei Ag Verfahren und vorrichtung zum betrieb einer filterzentrifuge
FR2665379B1 (fr) * 1990-07-31 1993-08-13 Fives Cail Babcock Procede de conduite automatisee d'une essoreuse centrifuge a marche discontinue.
US5254241A (en) * 1992-08-12 1993-10-19 The Western States Machine Company Loading control system for a cyclical centrifugal machine which adjusts pinch position
DE4327291C2 (de) * 1993-08-13 1997-07-31 Krauss Maffei Ag Verfahren und Vorrichtung zur Bestimmung von Meßgrößen einer Zentrifuge
NO301562B1 (no) * 1994-12-21 1997-11-10 Exxon Production Research Co Anordning for måling
DE19703353C2 (de) * 1997-01-30 2003-10-09 Krauss Maffei Process Technolo Verfahren zum Betrieb einer Filterzentrifuge
DE19716128C1 (de) * 1997-04-17 1999-01-21 Krauss Maffei Ag Verfahren zum ergebnisabhängigen Steuern von diskontinuierlich arbeitenden Filterzentrifugen
US6063292A (en) * 1997-07-18 2000-05-16 Baker Hughes Incorporated Method and apparatus for controlling vertical and horizontal basket centrifuges
WO1999015255A1 (fr) * 1997-09-19 1999-04-01 Baker Hughes Incorporated Procede et dispositif servant a effectuer le controle, la commande et la mise en service de filtres rotatifs a tambour
US6213928B1 (en) 1999-08-17 2001-04-10 Shrinivas G. Joshi Method and apparatus for measuring the thickness of sludge deposited on the sidewall of a centrifuge
DE10103769C2 (de) * 2001-01-27 2003-07-31 Westfalia Separator Food Tec G Zentrifuge
US7832566B2 (en) 2002-05-24 2010-11-16 Biomet Biologics, Llc Method and apparatus for separating and concentrating a component from a multi-component material including macroparticles
US20030205538A1 (en) 2002-05-03 2003-11-06 Randel Dorian Methods and apparatus for isolating platelets from blood
US20060278588A1 (en) 2002-05-24 2006-12-14 Woodell-May Jennifer E Apparatus and method for separating and concentrating fluids containing multiple components
US7845499B2 (en) 2002-05-24 2010-12-07 Biomet Biologics, Llc Apparatus and method for separating and concentrating fluids containing multiple components
DE10323516B3 (de) * 2003-05-24 2004-10-28 Johannes Gerteis Vorrichtung zur Entfeuchtungsmessung zur Steuerung einer Filterzentrifuge
CN100417428C (zh) * 2003-09-30 2008-09-10 博奥生物有限公司 离心分离的仪器和方法
DE102004037414A1 (de) * 2004-07-30 2006-03-23 Mann + Hummel Gmbh Zentrifugalabscheider
US7866485B2 (en) 2005-02-07 2011-01-11 Hanuman, Llc Apparatus and method for preparing platelet rich plasma and concentrates thereof
US7708152B2 (en) * 2005-02-07 2010-05-04 Hanuman Llc Method and apparatus for preparing platelet rich plasma and concentrates thereof
ES2426941T3 (es) * 2005-02-07 2013-10-25 Hanuman Llc Aparato y procedimiento de concentrados de plasma rico en plaquetas
DE102005028832A1 (de) * 2005-06-15 2006-12-28 Fima Maschinenbau Gmbh Zentrifugenvorrichtung mit verbesserter Prozessanalysetechnologie
US8567609B2 (en) 2006-05-25 2013-10-29 Biomet Biologics, Llc Apparatus and method for separating and concentrating fluids containing multiple components
US8328024B2 (en) 2007-04-12 2012-12-11 Hanuman, Llc Buoy suspension fractionation system
JP5479319B2 (ja) 2007-04-12 2014-04-23 バイオメット・バイオロジックス・リミテッド・ライアビリティ・カンパニー ブイ式懸濁液分画システム
EP2567692B1 (fr) 2008-02-27 2016-04-06 Biomet Biologics, LLC Utilisation d'un dispositif pour obtenir des solutions riches en antagoniste de récepteur d'interleukine-1
WO2009111338A1 (fr) 2008-02-29 2009-09-11 Biomet Manufacturing Corp. Système et procédé pour la séparation d'une matière
US8012077B2 (en) * 2008-05-23 2011-09-06 Biomet Biologics, Llc Blood separating device
US8187475B2 (en) 2009-03-06 2012-05-29 Biomet Biologics, Llc Method and apparatus for producing autologous thrombin
US8313954B2 (en) 2009-04-03 2012-11-20 Biomet Biologics, Llc All-in-one means of separating blood components
US9011800B2 (en) * 2009-07-16 2015-04-21 Biomet Biologics, Llc Method and apparatus for separating biological materials
DE102009039910A1 (de) * 2009-09-03 2011-03-10 Kmpt Ag Vorrichtung zum Messen des Füllstandes und der Oberflächenbeschaffenheit des Füllgutes in einer Zentrifuge
US8591391B2 (en) 2010-04-12 2013-11-26 Biomet Biologics, Llc Method and apparatus for separating a material
US9642956B2 (en) 2012-08-27 2017-05-09 Biomet Biologics, Llc Apparatus and method for separating and concentrating fluids containing multiple components
US9895418B2 (en) 2013-03-15 2018-02-20 Biomet Biologics, Llc Treatment of peripheral vascular disease using protein solutions
US10208095B2 (en) 2013-03-15 2019-02-19 Biomet Manufacturing, Llc Methods for making cytokine compositions from tissues using non-centrifugal methods
US20140271589A1 (en) 2013-03-15 2014-09-18 Biomet Biologics, Llc Treatment of collagen defects using protein solutions
US10143725B2 (en) 2013-03-15 2018-12-04 Biomet Biologics, Llc Treatment of pain using protein solutions
US9950035B2 (en) 2013-03-15 2018-04-24 Biomet Biologics, Llc Methods and non-immunogenic compositions for treating inflammatory disorders
US9713810B2 (en) 2015-03-30 2017-07-25 Biomet Biologics, Llc Cell washing plunger using centrifugal force
US9757721B2 (en) 2015-05-11 2017-09-12 Biomet Biologics, Llc Cell washing plunger using centrifugal force
EP3877089B1 (fr) 2018-11-06 2022-10-26 Ferrum Process Systems AG Procédé de fonctionnement d'un dispositif de centrifugation

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE621908C (de) * 1932-10-04 1935-11-15 Poth & Co Presshefefabrik G M Verfahren zur Entwaesserung von Hefe
US3011641A (en) * 1957-10-28 1961-12-05 Western States Machine Co Overriding loading control for centrifugal machines
US3044625A (en) * 1957-11-04 1962-07-17 Ametek Inc Load indicator for centrifugal separator
US3019902A (en) * 1958-06-23 1962-02-06 Hepworth Machine Company Inc Probe for centrifugal
DE1208695B (de) * 1958-12-18 1966-01-05 Siemens Ag Verfahren zur Steuerung und Regelung selbsttaetig arbeitender Zuckerzentrifugen
US3141846A (en) * 1962-04-05 1964-07-21 Western States Machine Co Load control unit for cyclical centrifugal installation
DE1432808A1 (de) * 1962-12-31 1969-01-09 Heinrich Hinz Vorrichtung zum Messen und Regeln der Fuellmenge einer waehrend des Laufens zu fuellenden Schleudertrommel,insbesondere fuer eine Zentrifuge
JPS497539B1 (fr) * 1966-04-13 1974-02-21
FR1518549A (fr) * 1966-04-13 1968-03-22 Ajinomoto Kk Séparateur centrifuge avec détecteur de quantité de séparation et procédé pour couper l'alimentation en suspension en fonction de la quantité de matière séparée
FR1485669A (fr) * 1966-05-05 1967-06-23 Robatel Et Mulatier Atel Perfectionnements aux machines séparatrices centrifuges à couteau râcleur
US3559808A (en) * 1968-09-27 1971-02-02 Ametek Inc Load indicator for centrifugal separator
SE348121B (fr) * 1970-12-07 1972-08-28 Alfa Laval Ab
DE2525232A1 (de) * 1975-06-06 1976-12-16 Riedel De Haen Ag Vorrichtung zur messung der fuellschichthoehe einer siebschleuder
US4162980A (en) * 1978-06-02 1979-07-31 The De Laval Separator Company Load indicator for centrifuges
US4229298A (en) * 1979-02-05 1980-10-21 The Western States Machine Company Method and apparatus for determining the thickness of a charge wall formed in a centrifugal basket
US4382382A (en) * 1979-11-01 1983-05-10 General Electric Company Multilevel liquid sensing system
DE2946585A1 (de) * 1979-11-19 1981-05-27 Vdo Adolf Schindling Ag, 6000 Frankfurt Einrichtung zum elektrischen ueberwachen des niveaus einer in einem behaelter enthaltenen fluessigkeit
JPS5926158A (ja) * 1982-08-03 1984-02-10 Matsumoto Kikai Seisakusho:Kk 遠心分離機
DE3523907A1 (de) * 1985-07-04 1987-01-15 Westfalia Separator Ag Verfahren und vorrichtung zur zentrifugalen reinigung von gebrauchten mineraloelen

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5032258A (en) * 1988-05-19 1991-07-16 Krauss-Maffei Aktiengesellschaft Filter centrifuge for separating suspensions with system to release accumulated gas
AT399300B (de) * 1993-09-23 1995-04-25 Tauss Johann Gmbh Verfahren und vorrichtung zur automatischen füllstandsüberwachung von zentrifugen
CN108027433A (zh) * 2015-08-03 2018-05-11 联邦科学和工业研究组织 监视系统和方法
CN108027433B (zh) * 2015-08-03 2022-09-06 联邦科学和工业研究组织 监视系统和方法

Also Published As

Publication number Publication date
DE3726227A1 (de) 1989-02-16
DE3726227C2 (fr) 1991-03-14
EP0302464B1 (fr) 1991-11-06
JP2540358B2 (ja) 1996-10-02
ES2026607T3 (es) 1992-05-01
US4900453A (en) 1990-02-13
EP0302464A3 (en) 1990-01-17
JPS6467270A (en) 1989-03-13

Similar Documents

Publication Publication Date Title
EP0302464B1 (fr) Dispositif de régulation d'une centrifugeuse filtrante
DE4123705C2 (de) Gerät zur Messung der Koagulationszeit des Blutes
DE4327291C2 (de) Verfahren und Vorrichtung zur Bestimmung von Meßgrößen einer Zentrifuge
DE2423204C2 (de) Verfahren und Vorrichtung zum Bereiten eines dünnen, gleichmäßigen Blutfilms auf einem Objektträger
DE2558794C3 (de) Verfahren zum Entwässern von Suspensionen mittels mit Unterdruck arbeitender Filter und Filter zur Durchführung des Verfahrens
DE3925198C2 (fr)
EP0255623A2 (fr) Dispositif pour la séparation de suspensions
EP1444045B1 (fr) Centrifugeuse avec un dispositif pour determiner la teneur residuelle en liquide de gateaux de solides
DE3615013C1 (en) Method for monitoring the drying phase in filtration centrifuges
DE2737759C2 (de) Vollmantelzentrifuge
EP0431427A2 (fr) Procédé et dispositif d'évacuation de liquides d'une centrifugeuse
EP2277627B1 (fr) Centrifugeuse discontinue dotée d'une commande des quantités de matières de remplissage et procédé de fonctionnement de la centrifugeuse
DE2745310A1 (de) Verfahren und vorrichtung zur messung der durchlaessigkeit von filtermitteln
DE19716128C1 (de) Verfahren zum ergebnisabhängigen Steuern von diskontinuierlich arbeitenden Filterzentrifugen
DE19703353A1 (de) Filterzentrifuge
EP0456861A1 (fr) Dispositif de régulation d'une centrifugeuse filtrante
DE1773147C3 (de) Verfahren und Vorrichtung zum Trennen der unlöslichen Bestandteile einer Bitumenprobe zur Bestimmung des Gehaltes und der granulometrischen Zusammensetzung
DE3940057C2 (fr)
DE4104752C2 (fr)
EP0009228B1 (fr) Dispositif pour la détermination répétée et automatique de l'égouttage d'une suspension de fibres
WO2009153063A1 (fr) Dispositif et procédé pour effectuer des mesures sur un fluide d’analyse
DE4334939A1 (de) Verfahren und Anordnung zum Feststellen einer vorgegebenen Grenzbedingung für den Zustand einer in einer Zentrifuge behandelten Suspension
DE3215306A1 (de) Einrichtung zur bestimmung und registrierung des mahlungsgrades von faserstoffen
DE19635318A1 (de) Verfahren und Vorrichtung zur Dickstoffmessung
DE10358020B3 (de) Gerät für die Papierherstellung

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): CH ES FR GB IT LI NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

RHK1 Main classification (correction)

Ipc: B04B 11/04

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): CH ES FR GB IT LI NL SE

17P Request for examination filed

Effective date: 19900209

17Q First examination report despatched

Effective date: 19910411

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH ES FR GB IT LI NL SE

ET Fr: translation filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
ITF It: translation for a ep patent filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2026607

Country of ref document: ES

Kind code of ref document: T3

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
EAL Se: european patent in force in sweden

Ref document number: 88112593.4

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

Ref country code: SE

Payment date: 19950810

Year of fee payment: 8

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

Ref country code: NL

Payment date: 19950811

Year of fee payment: 8

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

Ref country code: SE

Effective date: 19960804

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

Ref country code: NL

Effective date: 19970301

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 19970301

EUG Se: european patent has lapsed

Ref document number: 88112593.4

REG Reference to a national code

Ref country code: CH

Ref legal event code: PUE

Owner name: KRAUSS-MAFFEI AKTIENGESELLSCHAFT TRANSFER- MANNESM

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

REG Reference to a national code

Ref country code: ES

Ref legal event code: PC2A

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

REG Reference to a national code

Ref country code: CH

Ref legal event code: PUE

Owner name: MANNESMANN DEMAG KRAUSS-MAFFEI AG TRANSFER- KRAUSS

REG Reference to a national code

Ref country code: ES

Ref legal event code: PC2A

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

Ref country code: GB

Payment date: 20050720

Year of fee payment: 18

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

Ref country code: FR

Payment date: 20050819

Year of fee payment: 18

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

Ref country code: CH

Payment date: 20050824

Year of fee payment: 18

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

Ref country code: ES

Payment date: 20050829

Year of fee payment: 18

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: 20060831

Ref country code: LI

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

Effective date: 20060831

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

Ref country code: IT

Payment date: 20060831

Year of fee payment: 19

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Effective date: 20060803

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20070430

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20060804

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: 20060803

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: 20060804

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: 20060831

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: 20070803