EP0040692A1 - Obturateur coulissant et tournant pour récipients métallurgiques - Google Patents

Obturateur coulissant et tournant pour récipients métallurgiques Download PDF

Info

Publication number
EP0040692A1
EP0040692A1 EP81102759A EP81102759A EP0040692A1 EP 0040692 A1 EP0040692 A1 EP 0040692A1 EP 81102759 A EP81102759 A EP 81102759A EP 81102759 A EP81102759 A EP 81102759A EP 0040692 A1 EP0040692 A1 EP 0040692A1
Authority
EP
European Patent Office
Prior art keywords
stationary
rotary
closure
tubular body
refractory
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
EP81102759A
Other languages
German (de)
English (en)
Other versions
EP0040692B1 (fr
Inventor
Ernst Meier
Herbert Bachmann
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.)
Stopinc AG
Original Assignee
Stopinc 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 Stopinc AG filed Critical Stopinc AG
Priority to AT81102759T priority Critical patent/ATE4785T1/de
Publication of EP0040692A1 publication Critical patent/EP0040692A1/fr
Application granted granted Critical
Publication of EP0040692B1 publication Critical patent/EP0040692B1/fr
Expired legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/14—Closures
    • B22D41/22—Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings
    • B22D41/28—Plates therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/14—Closures
    • B22D41/22—Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings
    • B22D41/26—Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings characterised by a rotatively movable plate

Definitions

  • the invention relates to a rotary slide closure for metallurgical melting vessels according to the preamble of claim 1.
  • the object of the present invention is a practical design of a rotary slide closure in such a way that simple maintenance is also possible with a sliding surface which is displaced far towards the interior of the vessel of the closure and a quick change of the refractory closure body are possible.
  • the invention offers the possibility of using the widespread and, for the manufacture, simple plate shape of the refractory closure bodies also in the case of deep installation. It can be adjusted with little effort, namely by adjusting the pipe length, the installation depth to the respective circumstances, such as. B. changing thickness of the vessel lining, etc.
  • the mechanically more sensitive parts of the closure such as spring elements and bearings, can be accommodated outside the vessel jacket in the region of relatively low temperatures.
  • fire-proof in the context of the present invention is of course generally to be understood in such a way that the relevant parts or materials that come into direct contact with the melt are sufficiently resistant to it should.
  • the rotary slide closure shown in FIG. 1 is attached to a metallurgical melt vessel for the purpose of emptying the melt contained in it, by being detachably fastened to the metallic vessel jacket 2 (or a welded-in intermediate plate, for example, welded into the jacket plate) by means of several screws 19. From the melting pot part of the refractory lining 4 lying inside the vessel jacket 2 is shown. In order to accommodate the closure, a refractory sleeve 6, which is arranged above an opening 3 of the vessel jacket and to which a discharge stone 8 provided with a wide funnel opening 9 is connected via an annular mortar joint 7, is let into it.
  • the refractory parts 6 and 8 can in each case remain installed for a longer period of use and, for example, only need to be replaced together with the lining 4.
  • the upper end face of the closure is separated from the underside of the outlet stone 8 by an annular mortar joint 1 which surrounds the opening 9 and an insulating layer 5 adjoining it on the outside, preferably made of a fireproof felt mat; Parts 1 and 5 must be replaced when the locking unit is reinstalled.
  • the stationary, refractory pouring body 20 lying below the opening 9 and the rotatable, fireproof slide body 40 are designed as flat, preferably identical plates.
  • the sliding surface 23, on which the slide plate 40 rests under prestress on the pouring plate 20, is located on the side of the vessel shell 2 facing the interior of the vessel, as a result of which the pouring area is kept at a relatively high temperature by the melt contained in the vessel; this is further supported by the wide opening 9, which creates a large contact area between the melt and the plate 20.
  • an opening 42 present in it can be brought into agreement with the stationary opening 22 or the latter opening can be closed; the slide plate 40 can, as usual, also contain several openings.
  • the stationary plate 20 and the slide plate 40 are each held at one end of a stationary or rotatable closure part.
  • the stationary as well as the rotatable closure part are essentially designed as coaxial tubular bodies; the slide plate 40 is held on the rotatable tubular body 30 indirectly via an intermediate carrier 34.
  • the stationary and the rotatable one Closure part are guided radially and axially to one another via two roller bearings 24, 25.
  • the stationary closure part is divided into several tubular longitudinal sections 10, 11 and 12. At the junctures of these parts, heat-insulating layers 26 and 27, 28 are inserted, which greatly restrict the heat dissipation to the outside via the fixed, metallic tubular body from the closure area.
  • the end section 10 is detachably connected to the middle section 11 by means of a plurality of screws 15 and has an end face 14 in which the plate 20 is inserted.
  • the pipe sections 11 and 12 are each provided with a flange 16 and 17 and connected to this by means of a number of screws 18.
  • One flange 16 is used for positioning and fastening (screws 19) the entire closure unit on the vessel shell 2.
  • the tubular body 30 of the rotatable closure part is mounted on the tube section 12 lying outside the vessel shell.
  • a tag wedge 35 guided in the latter is used, which lies against a lateral driving surface of the otherwise circular plate 40.
  • the stationary plate 20 is secured against rotation in the bottom surface 14 of the end section 10 by means of a wedge 21.
  • a thermal insulation 43 is inserted in the intermediate carrier 34, which inhibits the heat radiation from the slide plate to the outside.
  • a pouring tube 44 is also used, which protects the metallic components of the closure from the outflowing melt.
  • the two parts 43 and 44 can be made in one piece or separately from light and porous, e.g. fibrous or flaky refractory material.
  • the intermediate carrier 34 rests on the upper ends of three pressure rams 38 which, offset from the driving bolts 37, are guided in the tubular body 30 so as to be longitudinally movable.
  • a ring 46 presses against the lower or outer end of the plunger 38, which ring is e.g. three spring members 48 distributed around the circumference is acted upon. These are preferably disc springs 48 which are stacked in packages on a stud bolt 47 and are preloaded with a nut 49.
  • the intermediate support 34 with the plate 40 is able to perform a certain wobble movement relative to the tubular body 30, the full support of the plate 40 on the plate 20 (sliding surface 23) is maintained during the rotation even if the rotatable tubular body is not precise should be aligned coaxially to the stationary tubular body.
  • a turntable 31 is fastened by means of several screws 33, which with the toothing 32 serves the rotary drive (by means of a chain or spur gear) of the rotatable closure part.
  • the slewing ring 31 is preferably bell-shaped and engages over the outer end of the stationary closure part, as a result of which the toothing 32 comes to lie axially between the bearings 24 and 25.
  • the rotary slide closure described can be removed as a whole by loosening the screws 19 from the depression formed by the refractory parts 6 and 8. As a result, the screws 15 are accessible and the end section 10 of the fixed closure part can be loosened for the purpose of checking or replacing the plates 20 and 40. After the end section 10 has been reattached and any resetting of the spring members 48, the closure unit as a whole can be reinstalled. There is also the possibility of leaving the screws 19 and, on the other hand, loosening the screws 18 connecting the flanges 16 and 17, whereupon the pipe section 12 with the rotatable Ver mounted thereon final part can be removed, but the stationary pipe sections 10 'and 11 and the plate 20 remain installed.
  • the described closure construction enables particularly simple maintenance and, in particular, rapid replacement of the refractory closure bodies 20 and 40.
  • the construction can also be very easily adapted to the required installation depth or position of the sliding surface 23 with respect to the vessel shell, namely only by changing the length of the tube section 11 and the rotatable tubular body 30; if necessary, this can be achieved by inserting intermediate rings of different lengths on these parts.
  • the rotary slide closure according to the invention can be used for casting various melts, in particular also non-ferrous heavy metals or light metals from the respective melting vessels. Operation is not only possible in the vertical position shown, but also with a horizontal or inclined axis of rotation.
EP81102759A 1980-05-22 1981-04-10 Obturateur coulissant et tournant pour récipients métallurgiques Expired EP0040692B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81102759T ATE4785T1 (de) 1980-05-22 1981-04-10 Drehschiebeverschluss fuer metallurgische schmelzegefaesse.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH4011/80 1980-05-22
CH4011/80A CH649149A5 (de) 1980-05-22 1980-05-22 Drehschiebeverschluss fuer schmelzegefaesse.

Publications (2)

Publication Number Publication Date
EP0040692A1 true EP0040692A1 (fr) 1981-12-02
EP0040692B1 EP0040692B1 (fr) 1983-09-28

Family

ID=4268135

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81102759A Expired EP0040692B1 (fr) 1980-05-22 1981-04-10 Obturateur coulissant et tournant pour récipients métallurgiques

Country Status (17)

Country Link
US (1) US4385715A (fr)
EP (1) EP0040692B1 (fr)
JP (1) JPS5722866A (fr)
AT (1) ATE4785T1 (fr)
AU (1) AU536045B2 (fr)
BR (1) BR8103172A (fr)
CA (1) CA1165116A (fr)
CH (1) CH649149A5 (fr)
DD (1) DD158937A5 (fr)
DE (1) DE3161009D1 (fr)
ES (1) ES267618Y (fr)
IN (1) IN154596B (fr)
NO (1) NO155606C (fr)
PL (1) PL134789B1 (fr)
SU (1) SU1071214A3 (fr)
YU (1) YU129881A (fr)
ZA (1) ZA812691B (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2551523A1 (fr) * 1983-09-02 1985-03-08 Stopinc Ag Plaque d'obturateur pour un obturateur coulissant
DE3424254C1 (de) * 1984-05-23 1985-07-11 Stopinc Ag, Baar Drehschiebeverschluss
FR2562824A1 (fr) * 1984-04-13 1985-10-18 Stopinc Ag Obturateur coulissant pour la busette de coulee de recipients contenant un bain de metal en fusion
DE3515494A1 (de) * 1985-04-30 1986-11-06 Stopinc Ag, Baar Gegen schmelzfluessige medien, insbesondere metallschmelzen abdichtende rohrverbindung
GB2198979A (en) * 1986-12-20 1988-06-29 Didier Werke Ag Rotary sliding gate valves for metallurgical vessels
BE1001778A3 (fr) * 1988-06-09 1990-03-06 Internat Ind Engineering S A Dispositif d'obturation a cle tournante.
GB2226263A (en) * 1988-12-22 1990-06-27 Steel Castings Res Rotary outlet valve in metallurgical vessel
EP0437726A2 (fr) * 1990-01-17 1991-07-24 Didier-Werke Ag Dispositif de fermeture pour un récipient contenant du métal liquide

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3412077A1 (de) * 1984-03-31 1985-10-03 Fried. Krupp Gmbh, 4300 Essen Kippbares metallurgisches ofengefaess
CA1279189C (fr) * 1985-11-18 1991-01-22 Tetsuya Yoshihara Systeme de buse tournante
JPS63226888A (ja) * 1987-03-16 1988-09-21 Sanyo Electric Co Ltd アルカリ亜鉛蓄電池
JPH01105457A (ja) * 1987-10-16 1989-04-21 Sanyo Electric Co Ltd アルカリ亜鉛蓄電池
DE4231692C1 (de) * 1992-09-22 1994-03-24 Dolomitwerke Gmbh Drehverschluß für metallurgische Gefäße
GB0613337D0 (en) 2006-07-05 2006-08-16 Mills Stephen D Rotating control nozzle (metercast)
EP1894649A1 (fr) 2006-09-01 2008-03-05 Stopinc Aktiengesellschaft Dispositif de maintenance d'un obturateur coulissant monté au trou d'un récipient contenant du métal liquide
CH708284B1 (de) 2013-07-11 2023-11-15 Refractory Intellectual Property Gmbh & Co Kg Verfahren und Wechselvorrichtung zum automatischen Auswechseln einer Ausgusshülse eines Schiebeverschlusses an einem metallurgischen Gefäss.

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1910247A1 (de) * 1969-02-28 1970-09-10 Neitzel Dipl Ing Martin Vorrichtung und Verfahren zum Abgiessen von metallurgischen Schmelzen und aehnlichen Produkten
DE2260748A1 (de) * 1971-12-17 1973-06-20 Uss Eng & Consult Vorrichtung zum vergiessen von metallschmelze aus einem eine bodenaustragsduese aufweisenden giessgefaess
US3764047A (en) * 1971-11-12 1973-10-09 Nippon Kokan Kk Rotary nozzle for ladle
AT330969B (de) * 1973-03-13 1976-07-26 Brohltal Deumag Ag Drehverschluss fur eine im boden einer giesspfanne angeordnete auslassoffnung
DE3014054A1 (de) * 1979-04-13 1980-10-23 Kokan Kikai Kogyo Kk Klappbare drehduesenvorrichtung, z.b. fuer giesspfannen oder konverter

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2043588C3 (de) * 1970-09-03 1973-11-08 Didier-Werke Ag, 6200 Wiesbaden Drehschieberverschluß an Behaltern fur flussige Schmelze
US4194528A (en) * 1978-04-17 1980-03-25 Allis-Chalmers Corporation Spherical valve seal piston detecting and locking arrangement

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1910247A1 (de) * 1969-02-28 1970-09-10 Neitzel Dipl Ing Martin Vorrichtung und Verfahren zum Abgiessen von metallurgischen Schmelzen und aehnlichen Produkten
US3764047A (en) * 1971-11-12 1973-10-09 Nippon Kokan Kk Rotary nozzle for ladle
DE2212312B2 (de) * 1971-11-12 1976-11-25 Nippon Kokan KX.; Tokyo Yogyo KX.; KokanKikai Kogyo KX.; Tokio Drehschieberverschluss fuer den bodenausguss einer giesspfanne
DE2260748A1 (de) * 1971-12-17 1973-06-20 Uss Eng & Consult Vorrichtung zum vergiessen von metallschmelze aus einem eine bodenaustragsduese aufweisenden giessgefaess
US3780916A (en) * 1971-12-17 1973-12-25 United States Steel Corp Rotary gate for bottom pour vessel having removable nozzles
AT330969B (de) * 1973-03-13 1976-07-26 Brohltal Deumag Ag Drehverschluss fur eine im boden einer giesspfanne angeordnete auslassoffnung
DE7408622U (de) * 1973-03-13 1977-02-24 Brohltal-Deumag Ag Fuer Feuerfeste Erzeugnisse, 5401 Urmitz Drehverschluss fuer giesspfannen
DE2411800B2 (de) * 1973-03-13 1978-08-24 Brohltal-Deumag Ag Fuer Feuerfeste Erzeugnisse, 5401 Urmitz Drehverschluß für Gießpfannen
DE3014054A1 (de) * 1979-04-13 1980-10-23 Kokan Kikai Kogyo Kk Klappbare drehduesenvorrichtung, z.b. fuer giesspfannen oder konverter
FR2453698A1 (fr) * 1979-04-13 1980-11-07 Nippon Kokan Kk Tuyere tournante d'obturation pour poche de fonderie

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2551523A1 (fr) * 1983-09-02 1985-03-08 Stopinc Ag Plaque d'obturateur pour un obturateur coulissant
DE3421368A1 (de) * 1983-09-02 1985-03-28 Stopinc Ag, Baar Verschlussplatte fuer einen schiebeverschluss
FR2562824A1 (fr) * 1984-04-13 1985-10-18 Stopinc Ag Obturateur coulissant pour la busette de coulee de recipients contenant un bain de metal en fusion
DE3424254C1 (de) * 1984-05-23 1985-07-11 Stopinc Ag, Baar Drehschiebeverschluss
GB2159250A (en) * 1984-05-23 1985-11-27 Stopinc Ag Rotary sliding gate valves
FR2564958A1 (fr) * 1984-05-23 1985-11-29 Stopinc Ag Fermeture a coulisse tournante, pour cuves ou recipients metallurgiques
DE3515494A1 (de) * 1985-04-30 1986-11-06 Stopinc Ag, Baar Gegen schmelzfluessige medien, insbesondere metallschmelzen abdichtende rohrverbindung
FR2587439A1 (fr) * 1985-04-30 1987-03-20 Stopinc Ag Jonction entre deux tubes, etanche aux milieux liquides, notamment aux metaux en fusion
GB2198979A (en) * 1986-12-20 1988-06-29 Didier Werke Ag Rotary sliding gate valves for metallurgical vessels
BE1001778A3 (fr) * 1988-06-09 1990-03-06 Internat Ind Engineering S A Dispositif d'obturation a cle tournante.
GB2226263A (en) * 1988-12-22 1990-06-27 Steel Castings Res Rotary outlet valve in metallurgical vessel
GB2226263B (en) * 1988-12-22 1992-11-04 Steel Castings Res Valve for vessel outlet
EP0437726A2 (fr) * 1990-01-17 1991-07-24 Didier-Werke Ag Dispositif de fermeture pour un récipient contenant du métal liquide
EP0437726A3 (en) * 1990-01-17 1992-04-22 Didier-Werke Ag Closure device for a molten metal vessel

Also Published As

Publication number Publication date
DD158937A5 (de) 1983-02-09
AU536045B2 (en) 1984-04-12
AU7091281A (en) 1981-11-26
ES267618Y (es) 1983-12-01
ATE4785T1 (de) 1983-10-15
PL231273A1 (fr) 1982-01-04
JPS6225465B2 (fr) 1987-06-03
US4385715A (en) 1983-05-31
CH649149A5 (de) 1985-04-30
YU129881A (en) 1984-08-31
CA1165116A (fr) 1984-04-10
NO155606C (no) 1987-04-29
ZA812691B (en) 1982-04-28
NO155606B (no) 1987-01-19
SU1071214A3 (ru) 1984-01-30
IN154596B (fr) 1984-11-17
EP0040692B1 (fr) 1983-09-28
DE3161009D1 (en) 1983-11-03
PL134789B1 (en) 1985-09-30
BR8103172A (pt) 1982-02-09
ES267618U (es) 1983-06-01
NO811733L (no) 1981-11-23
JPS5722866A (en) 1982-02-05

Similar Documents

Publication Publication Date Title
EP0040692B1 (fr) Obturateur coulissant et tournant pour récipients métallurgiques
CH653933A5 (de) Schiebeverschluss fuer schmelzegefaesse.
CH640442A5 (de) Drehschiebeverschluss fuer metallurgische gefaesse, insbesondere stahlgiesspfannen.
DE2125175A1 (de) Schieberverschluß an Behältern für flüssige Schmelzen
DE2226173A1 (de) Verschließeinrichtung fur Auslaß öffnungen von Gießpfannen
DE2557726A1 (de) Vorrichtung zum auswechseln von giessrohren, insbesondere fuer einen mit einem schieberverschluss absperrbaren ausguss an einem zwischenbehaelter von stranggussanlagen
DE3220579C2 (de) Drehschiebeverschluss unterhalb der Einlaufhülse eines im Behälterboden eines Schmelzbehälters angeordneten Bodensteines
EP0727268A2 (fr) Fermeture à tiroir pour un convertisseur contenant un bain métallique
DE3319009C2 (de) Verschluß für einen geschmolzenes Material enthaltenden Behälter
DE3424254C1 (de) Drehschiebeverschluss
EP0356618B1 (fr) Organe de fermeture et/ou de commande pour l'amorçage de la coulée d'un métal liquide sortant d'un récipient métallurgique
DE3342836C2 (de) Drehverschluss für schmelzflüssige Werkstoffe, insbesondere Metall-Schmelzen
EP0421411A2 (fr) Four rotatif
DE3306670A1 (de) Abstichvorrichtung fuer abschmelz- und/oder warmhalteoefen fuer ne-metalle bzw. ne-metallschmelzen
DE2411800A1 (de) Drehverschluss fuer giesspfannen
DE2735530C2 (de) Aufspannplatte für ein Pressform-Unterteil
EP0442515B1 (fr) Dispositif de remplacement d'une buse de coulée immergée entre deux récipients métallurgiques d'une installation de coulée continue
DE2931671A1 (de) Aufhaengung fuer einen kippbaren, metallurgischen behaelter
DE2557413A1 (de) Drehtrommel
EP0603702B1 (fr) Appareil pour produire des granules
DE2728173A1 (de) Ruehrwerk fuer metallschmelzen
DE3115166A1 (de) Deckel fuer einen lichtbogenofen
DE10033966C1 (de) Gefäss für metallurgische Zwecke
DD280270A1 (de) Schieberhuelse fuer metallurgische gefaesse
DE3601291C2 (fr)

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: 19810422

AK Designated contracting states

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

ITF It: translation for a ep patent filed

Owner name: BARZANO' E ZANARDO ROMA S.P.A.

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

Owner name: STOPINC AKTIENGESELLSCHAFT

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

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

REF Corresponds to:

Ref document number: 4785

Country of ref document: AT

Date of ref document: 19831015

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3161009

Country of ref document: DE

Date of ref document: 19831103

ET Fr: translation filed
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: 19840430

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

Ref country code: AT

Payment date: 19900411

Year of fee payment: 10

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

Ref country code: BE

Payment date: 19900417

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: 19900418

Year of fee payment: 10

ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 19900509

Year of fee payment: 10

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

Ref country code: GB

Payment date: 19910403

Year of fee payment: 11

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

Ref country code: AT

Effective date: 19910410

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

Ref country code: SE

Effective date: 19910411

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

Ref country code: BE

Effective date: 19910430

BERE Be: lapsed

Owner name: STOPINC A.G.

Effective date: 19910430

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

Ref country code: GB

Effective date: 19920410

GBPC Gb: european patent ceased through non-payment of renewal fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19940411

Year of fee payment: 14

EUG Se: european patent has lapsed

Ref document number: 81102759.8

Effective date: 19911108

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

Ref country code: FR

Effective date: 19951229

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

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

Ref country code: NL

Payment date: 19960430

Year of fee payment: 16

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

Ref country code: NL

Effective date: 19971101

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

Effective date: 19971101

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

Ref country code: DE

Payment date: 19990326

Year of fee payment: 19

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: 20010201