EP0143414B1 - Machine à agglomérer - Google Patents

Machine à agglomérer Download PDF

Info

Publication number
EP0143414B1
EP0143414B1 EP84113946A EP84113946A EP0143414B1 EP 0143414 B1 EP0143414 B1 EP 0143414B1 EP 84113946 A EP84113946 A EP 84113946A EP 84113946 A EP84113946 A EP 84113946A EP 0143414 B1 EP0143414 B1 EP 0143414B1
Authority
EP
European Patent Office
Prior art keywords
teeth
matrix
press rolls
die
press
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
Application number
EP84113946A
Other languages
German (de)
English (en)
Other versions
EP0143414A3 (en
EP0143414B2 (fr
EP0143414A2 (fr
Inventor
Volker Benson
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.)
Blohm and Voss GmbH
Original Assignee
Blohm and Voss GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Blohm and Voss GmbH filed Critical Blohm and Voss GmbH
Priority to AT84113946T priority Critical patent/ATE40076T1/de
Publication of EP0143414A2 publication Critical patent/EP0143414A2/fr
Publication of EP0143414A3 publication Critical patent/EP0143414A3/de
Application granted granted Critical
Publication of EP0143414B1 publication Critical patent/EP0143414B1/fr
Publication of EP0143414B2 publication Critical patent/EP0143414B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/22—Extrusion presses; Dies therefor
    • B30B11/221—Extrusion presses; Dies therefor extrusion dies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/22—Extrusion presses; Dies therefor
    • B30B11/228—Extrusion presses; Dies therefor using pressing means, e.g. rollers moving over a perforated die plate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/34—Heating or cooling presses or parts thereof

Definitions

  • the invention relates to a pelletizing machine in which press rolls roll on a flat, perforated die.
  • Pelleting machines are used to compress and extrude various types of material under the pressure of rolls, the strands being broken or cut into pellets.
  • the material is partially compacted before it is pressed into the through holes and in many cases also involves crushing and mixing the components. Crushing is particularly necessary for waste that e.g. B. contain paper, textiles, plastics, straw and other parts of plants or consist of such.
  • the press rolls have already been provided with blind holes or with transverse grooves, it could happen that the material was not drawn into the press nip between press roll and die or that the press rolls, which are usually freely rotatable on the pan head, were compacted by means of a compact structure Material layer slid away.
  • a pelletizing machine according to the preamble of claim 1 is known (US-A-3 063 361).
  • the die is formed with a flat surface in which a plurality of through holes are provided.
  • the surface of the press roller has a corresponding number of projections which have the form of stamps which push the material to be pelletized through the through holes of the die. Only the material to be pelletized is perforated, with material accumulating around the through holes.
  • a stamping effect occurs; there is no crushing, shearing, compacting and moving material.
  • the invention is based on the object of designing press rollers and die in such a way that the drawing of the material into the press nip and the comminution between press rolls and die and also the passage of the material through the die are improved.
  • the surfaces of the press rolls and die are provided with teeth.
  • the teeth on the press rollers are designed so that they grip the supplied material and at least partially press between the teeth of the die and in any case into the through holes between the teeth of the die.
  • the teeth also prevent the formation of a densified layer of material on the die above its through holes. Since the die and press rolls engage the teeth at least through the material enclosed between them, the press rolls are inevitably rotated when the pan head is driven with a fixed die or the die is rotated with a fixed pan head.
  • the die and press rolls are provided with a toothing as in the case of angular drives or bevel gears, the teeth of the press rolls pressing the material between the teeth of the die and into the through holes arranged there, and at the same time fibrous or flat material when being pressed between them Tear teeth and grind on the tooth flanks and on the base of the matrix.
  • the teeth do not need to run the entire length of the line of contact between the press roller and the die. Smooth surfaces of the roll and the die can also lie between them or next to them.
  • FIG. 1 shows a perspective view of a pelletizing machine, the filling funnel partly. is cut away
  • FIG. 2 shows a section through a section of the die and a press roller interacting with it and having a toothing according to FIG. 1,
  • FIG. 3 shows a section as in Figure 2, but with widened teeth.
  • a drive for a vertical shaft is accommodated in a gear housing 1. These parts are not shown.
  • the vertical shaft rotates the pan head 2, on which 3 conical press rollers 4 are arranged on inclined axes, which are pressed by the pan head 2 against the flat die 5, which is firmly supported on the gear housing 1.
  • a pressure device 8 for the pan head 2 sits on the vertical shaft 7.
  • the press rolls 4 When the pan head 2 rotates, the press rolls 4, whose teeth also grip material of a coarse structure, roll on the die 5.
  • the space in which the press rollers 4 work is surrounded by a funnel 6, in which the material to be processed is poured in from above.
  • two press rolls 4 In the pelletizing machine shown, two press rolls 4 are shown. However, three or four press rolls can also be used.
  • a pelleting machine of the type shown with four Press rolls can be designed for a large material throughput and can be used for pelleting straw, for example.
  • both the die and the press rollers are provided with toothings which engage in one another, as shown in FIG. 2.
  • the die 5 is composed of an upper part 51 and a lower part 52, which are secured against one another by pins 53 or in a similar manner.
  • the teeth 41 on the press roller 4 engage between the teeth 54 on the upper part 51.
  • the entry openings of the through holes 56, 57 are arranged between the teeth 54.
  • the through holes 57 are surrounded by ceramic bushings 58 in the region of the lower part 52.
  • the lower part 52 also contains channels 59 through which a heating or cooling medium can circulate.
  • the material falling on the press roller 4 or the die 5 is taken along by the teeth and compressed between teeth 41, 54. It is stretched and broken and rubbed between the tooth flanks, which destroys coarse structures.
  • the reduction in the free space between two flanks of the teeth 54 by the penetration of a tooth 41 creates a high pressure in the material, which is thereby pressed into the inlet opening 55 and further into the through hole 56, 57, where the pellet is formed and due to the friction is further solidified on the perforated wall.
  • the pressure applied during machining and the friction of the material on the surfaces of the die can lead to excessive heating. It can therefore be expedient to protect the die 5 from overheating by means of a coolant in the channels 59.
  • the introduction of a heating medium into the channels 59 can be expedient in order to soften material that solidifies or becomes very solid in the passages 56, 57 when the device is switched off before the machine is switched on again.
  • Ceramic bushings 58 are advantageous if the material to be machined contains aggressive constituents which attack the die, which is usually made of steel, and would produce a very rough surface of the through holes 57 at least after some time.
  • the channels 59 and the bushes 58 can be dispensed with, and the teeth and the size of the passages 56, 57 have to be adapted to the respective use.
  • the teeth prevent the material from jamming in front of the press rolls and improve the size reduction of the material.
  • the teeth 61 of the press roller 4 are widened to approximately twice the pitch.
  • a wide surface 63 corresponding to the tip circle of the teeth 61 can roll over several through holes 56 or over holes with a very large diameter and press the material into them.
  • the teeth 62 of the die 5 can have a width or pitch as in FIG. 2.
  • a large number of entry openings for the through holes into which the pre-comminuted and, if appropriate, previously ground and mixed material is pressed through the peripheral surface parts 63 can still be accommodated in the flat top side 64 of the die 5.
  • the design of the teeth and the holes should be selected according to the material being treated, although conical press rolls according to FIG. 1 are preferred for designs according to this example.
  • conical pressure rollers with a toothing of rollers and die as in FIG. 2 were used.
  • the outside diameter of the die was approx. 760 mm, the height of the teeth approx. 10 mm.
  • the die was tempered to prevent the material from melting and overheating.
  • dies with diameters of approximately 300 to 1600 mm can be used with correspondingly large press rolls, teeth with a particularly large height being usable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Disintegrating Or Milling (AREA)
  • Steroid Compounds (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
  • Press Drives And Press Lines (AREA)
  • Glanulating (AREA)

Claims (6)

1. Machine à agglomérer, comprenant des rouleaux compresseurs (4), qui sont montés à rotation sur une tête de maneton (2) disposée sur un axe vertical et qui sont conformés avec des saillies sur leur surface, et comprenant une matrice horizontale (5), de forme circulaire et pourvue de trous de passage (56, 57), contre laquelle les rouleaux compresseurs (4) sont appuyés, caractérisée en ce que les surfaces des rouleaux compresseurs (4) et de la matrice (5) sont pourvues, au moins en partie, de dents (41, 54, 61, 62) qui engrènent mutuellement, et en ce que les dents (41, 61) des rouleaux compresseurs (4) roulent au-dessus des ouvertures d'entrée (55) des trous de passage (56, 57) de la matrice (5).
2. Machine à agglomérer selon la revendication 1, comprenant des rouleaux compresseurs (4) de forme conique, capables de tourner autour d'axes inclinés (3) portés par la tête de maneton (2), caractérisée en ce que les dents (41, 54, 61, 62) sont constituées de façon semblable à celles d'une denture de roue conique et s'étendent sur au moins une partie de la ligne de contact entre le rouleau compresseur (4) et la matrice (5).
3. Machine à agglomérer selon la revendication 2, caractérisée en ce que la denture est constituée de façon que la largeur des dents (61) des rouleaux compresseurs (4) soit plus grande que la largeur des dents (62) de la matrice (5) entre lesquelles sont disposés les trous de passage (56, 57).
4. Machine à agglomérer selon l'une des revendications 1 à 3, caractérisée en ce que la matrice (5) est en deux parties et la partie supérieure (51) pourvue des dents (54) est reliée à la partie inférieure (52) de façon à être facilement remplaçable.
5. Machine à agglomérer selon la revendication 4, caractérisée en ce que des manchons (58) en céramique sont disposés dans les trous de passage (57) de la partie inférieure (52).
6. Machine à agglomérer selon l'une des revendications 1 à 5, caractérisée en ce que la matrice (5) est pourvue de dispositifs de chauffage et de refroidissement (59).
EP84113946A 1983-11-25 1984-11-17 Machine à agglomérer Expired - Lifetime EP0143414B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84113946T ATE40076T1 (de) 1983-11-25 1984-11-17 Pelletiermaschine.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3342657 1983-11-25
DE3342657A DE3342657C2 (de) 1983-11-25 1983-11-25 Pelletiermaschine

Publications (4)

Publication Number Publication Date
EP0143414A2 EP0143414A2 (fr) 1985-06-05
EP0143414A3 EP0143414A3 (en) 1986-09-10
EP0143414B1 true EP0143414B1 (fr) 1989-01-18
EP0143414B2 EP0143414B2 (fr) 1992-11-19

Family

ID=6215252

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84113946A Expired - Lifetime EP0143414B2 (fr) 1983-11-25 1984-11-17 Machine à agglomérer

Country Status (4)

Country Link
EP (1) EP0143414B2 (fr)
AT (1) ATE40076T1 (fr)
DE (2) DE3342657C2 (fr)
DK (1) DK158070C (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101884894A (zh) * 2010-06-29 2010-11-17 卢秉威 新式秸秆颗粒机

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3711379A1 (de) * 1987-04-04 1988-10-20 Hoelter Heinz Pelletisierpresse
US4824352A (en) * 1987-10-16 1989-04-25 Hadley Richard S Apparatus for pelletizing materials
DE3806945C2 (de) * 1988-03-03 1995-01-26 Kahl Amandus Maschf Kollerpresse
DE4013760A1 (de) * 1990-04-28 1991-10-31 Sevar Entsorgung Einrichtung zum formen wuerstchenfoermiger formlinge aus pastoesem schlammaterial
DE4410083C1 (de) * 1994-03-23 1995-10-05 Bresch Entsorgung Gmbh Vorrichtung zur Freisetzung von Treibgas aus geschäumten Materialien und Verfahren unter Verwendung der Vorrichtung
AUPP148398A0 (en) * 1998-01-23 1998-02-19 Crop Care Australasia Pty Ltd Granulator
JP2005532904A (ja) * 2002-07-19 2005-11-04 チェ、ジャンビン バイオ物質を成形する方法およびその機器
CN1327944C (zh) * 2003-11-20 2007-07-25 登封电厂集团铝合金有限公司 对辊制团机
DE102007028399B4 (de) * 2007-06-15 2009-09-10 Guido Pusch Vorrichtung zum Herstellen von brennbaren Pellets aus nachwachsenden Rohstoffen
FI127057B (fi) * 2010-12-17 2017-10-31 Teknologian Tutkimuskeskus Vtt Oy Laite ja menetelmä massan muokkaamiseksi ja puristamiseksi
DE102011106374A1 (de) * 2011-07-04 2013-01-10 Nct Gmbh Verfahren und Presse zur gleichzeitigen Erzeugung mehrerer Stränge aus einem formbaren Material
PL395694A1 (pl) * 2011-07-18 2013-01-21 Zaklady Urzadzen Kotlowych Staporków Spólka Akcyjna Urzadzenie do wytwarzania paliwa stalego w postaci uformowanych ksztaltek i sposób wytwarzania paliwa stalego
PL236152B1 (pl) * 2011-11-21 2020-12-14 Zuk Mr System Spolka Z Ograniczona Odpowiedzialnoscia Głowica formująca urządzenia do wytwarzania pelet opałowych lub paszowych
ITPI20130008A1 (it) * 2013-02-14 2014-08-14 Giuseppe Calderani Gruppo di compressione con ruote coniche per pellettatrice
DE102013003032A1 (de) * 2013-02-22 2014-09-25 Automatik Plastics Machinery Gmbh Quetschwalzengranulator und Verwendung desselben
EP2774751A1 (fr) * 2013-03-04 2014-09-10 Amandus Kahl GmbH & Co. KG Matrice plate et procédé de détachement d'un composant de la plaque de pressage d'un corps de matrice
DE202014008800U1 (de) 2014-11-05 2014-11-17 Automatik Plastics Machinery Gmbh Quetschwalzengranulator mit Quetschwalzenpaar und Verwendung desselben
EP3835048B1 (fr) 2019-12-12 2024-05-08 Johannes Wissing Machine à granuler pourvue de matrice à déplacement en hauteur
CN115025718B (zh) * 2022-07-25 2023-08-01 安徽环态生物能源科技开发有限公司 一种颗粒成型机用可柔性调节的压辊机构
CN118268085B (zh) * 2024-06-04 2024-08-20 济南金曰公路工程有限公司 一种用于复合改性沥青的橡胶粉生产设备

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE317814C (fr) *
DE613028C (de) * 1934-01-24 1935-05-10 Albert William Sizer Formmaschine fuer Futtermittel u. dgl.
US3063361A (en) * 1959-12-02 1962-11-13 Emil J W Gehrke Mobile pelletizing apparatus
DE1208936B (de) * 1960-01-12 1966-01-13 Harry J Immohr Pelletisier-Pressform
DE1777199A1 (de) * 1968-09-23 1971-03-18 Muehlenbau Dresden Veb Ringmatrize zum Formen von Presslingen in Futtermittelpressen
DE2151865A1 (de) * 1970-11-11 1972-05-18 Leuna Werke Veb Vorrichtung zum Granulieren von thermoplastischen Kunststoffen und Polyolefinwachsen
DE7315926U (de) * 1973-04-26 1974-11-28 Papenmeier G Kg Granulier vorrichtung
DE2714614C3 (de) * 1977-04-01 1979-12-06 Projektierung Chemische Verfahrenstechnik Gmbh, 4030 Ratingen Verfahren und Vorrichtung zum Herstellen von Briketts aus wenigstens teilweise körnigem oder pulverartigem Einsatzgut
NL8204241A (nl) * 1982-11-02 1984-06-01 Commanditaire Vennootschap Bur Pelleteerinrichting.
DE3342659A1 (de) * 1983-11-25 1985-06-05 Howaldtswerke-Deutsche Werft Ag Hamburg Und Kiel, 2300 Kiel Pelletisiermatrize
DE3342658A1 (de) * 1983-11-25 1985-06-05 Howaldtswerke-Deutsche Werft Ag Hamburg Und Kiel, 2300 Kiel Matrize fuer eine pelletisiermaschine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101884894A (zh) * 2010-06-29 2010-11-17 卢秉威 新式秸秆颗粒机
CN101884894B (zh) * 2010-06-29 2012-12-26 卢秉威 秸杆颗粒机

Also Published As

Publication number Publication date
EP0143414A3 (en) 1986-09-10
DE3476177D1 (en) 1989-02-23
DK559284A (da) 1985-05-26
DK559284D0 (da) 1984-11-23
DE3342657C2 (de) 1986-11-06
EP0143414B2 (fr) 1992-11-19
DK158070C (da) 1990-08-20
ATE40076T1 (de) 1989-02-15
DK158070B (da) 1990-03-26
EP0143414A2 (fr) 1985-06-05
DE3342657A1 (de) 1985-06-05

Similar Documents

Publication Publication Date Title
EP0143414B1 (fr) Machine à agglomérer
DE19523704C2 (de) Vorrichtung zur mechanischen Behandlung von hochkonsistentem Faserstoff
DE112016000134T5 (de) Eine Art von Biomasse-Pelletmaschine
EP2961595A1 (fr) Dispositif de pelletisation ou granulation
WO2010054615A1 (fr) Dispositif de compactage
DE1502243A1 (de) Schneckenpresse
EP0143415A2 (fr) Dispositif d'agglomération à deux étapes
DE2913457C2 (fr)
DE4345567B4 (de) Streumaschine zum Streuen von beleimtem Streugut zu Streugutmatten in einer Anlage zur Herstellung von Holzwerkstoffplatten
DE2940956A1 (de) Verdichtungs-walzwerk
DE4302850B9 (de) Streumaschine zum Streuen von beleimtem Streugut zu Streugutmatten in einer Anlage zur Herstellung von Holzwerkstoffplatten
WO2015044050A1 (fr) Dispositif granulateur
EP0565823B1 (fr) Presse pour la déshydratation de matières par compression
DE19610576A1 (de) Kollerverdichtervorrichtung
DE4034610C2 (de) Brikettierpresse für Stroh, Holzspäne und dgl.
AT408205B (de) Presseinrichtung zur verdichtung von metallteilen, insbesondere von spänen
DE1026164B (de) Vorrichtung zum Formen von Vieh- und Gefluegelfutterstoffen zu Wuerfeln oder Kuegelchen
DE3418850A1 (de) Vorrichtung zur druckbehandlung von fleisch
EP0324800B1 (fr) Laminoir de melange et de cisaillement pour materiaux plastifiables
DE19846935C1 (de) Vorrichtung zur Erzeugung von Granalien oder Pastillen aus fließfähigem Material
DE8333893U1 (de) Pelletisiermaschine
DE315772C (fr)
DE3209613A1 (de) Schneckenpresse nach dem baukastenprinzip
EP0615829A1 (fr) Dispositif de filtrage
DE1767381C (de) Granuliervorrichtung

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

Designated state(s): AT BE CH DE FR GB IT LI NL SE

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 CH DE FR GB IT LI NL SE

17P Request for examination filed

Effective date: 19861001

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

Owner name: BLOHM + VOSS AG

17Q First examination report despatched

Effective date: 19871204

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE FR GB IT LI NL 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: 19890118

Ref country code: BE

Effective date: 19890118

REF Corresponds to:

Ref document number: 40076

Country of ref document: AT

Date of ref document: 19890215

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3476177

Country of ref document: DE

Date of ref document: 19890223

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

Free format text: ORIGINAL CODE: 0009260

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

Ref country code: AT

Effective date: 19891117

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

Ref country code: LI

Effective date: 19891130

Ref country code: CH

Effective date: 19891130

26 Opposition filed

Opponent name: HOELTER GMBH

Effective date: 19891006

NLR1 Nl: opposition has been filed with the epo

Opponent name: HOELTER GMBH

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PUAH Patent maintained in amended form

Free format text: ORIGINAL CODE: 0009272

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT MAINTAINED AS AMENDED

27A Patent maintained in amended form

Effective date: 19921119

AK Designated contracting states

Kind code of ref document: B2

Designated state(s): AT BE CH DE FR GB IT LI NL SE

ET3 Fr: translation filed ** decision concerning opposition
GBTA Gb: translation of amended ep patent filed (gb section 77(6)(b)/1977)

Effective date: 19921216

NLR2 Nl: decision of opposition
NLR3 Nl: receipt of modified translations in the netherlands language after an opposition procedure
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19930817

Year of fee payment: 10

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

Ref country code: SE

Payment date: 19930927

Year of fee payment: 10

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

Ref country code: FR

Payment date: 19931116

Year of fee payment: 10

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

Ref country code: DE

Payment date: 19931119

Year of fee payment: 10

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

Ref country code: NL

Payment date: 19931130

Year of fee payment: 10

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

Ref country code: GB

Effective date: 19941117

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

Ref country code: SE

Effective date: 19941118

EAL Se: european patent in force in sweden

Ref document number: 84113946.2

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

Ref country code: NL

Effective date: 19950601

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

Effective date: 19941117

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19950731

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

Ref country code: DE

Effective date: 19950801

EUG Se: european patent has lapsed

Ref document number: 84113946.2

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST