EP0141970B1 - Supporting arrangement for horizontally disposed pressure vessels - Google Patents

Supporting arrangement for horizontally disposed pressure vessels Download PDF

Info

Publication number
EP0141970B1
EP0141970B1 EP84111066A EP84111066A EP0141970B1 EP 0141970 B1 EP0141970 B1 EP 0141970B1 EP 84111066 A EP84111066 A EP 84111066A EP 84111066 A EP84111066 A EP 84111066A EP 0141970 B1 EP0141970 B1 EP 0141970B1
Authority
EP
European Patent Office
Prior art keywords
boiler
vessel
shell
supporting shell
supporting
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
EP84111066A
Other languages
German (de)
French (fr)
Other versions
EP0141970A1 (en
Inventor
Gunter Aurin
Herbert Dr. Tratz
Erich Netsch
Richard Welch
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.)
Siemens AG
Original Assignee
Kraftwerk Union AG
Siemens 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 Kraftwerk Union AG, Siemens AG filed Critical Kraftwerk Union AG
Priority to AT84111066T priority Critical patent/ATE28355T1/en
Publication of EP0141970A1 publication Critical patent/EP0141970A1/en
Application granted granted Critical
Publication of EP0141970B1 publication Critical patent/EP0141970B1/en
Expired legal-status Critical Current

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22BMETHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00Component parts or details of steam boilers
    • F22B37/02Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/10Water tubes; Accessories therefor
    • F22B37/20Supporting arrangements, e.g. for securing water-tube sets
    • F22B37/207Supporting arrangements for drums and collectors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D90/00Component parts, details or accessories for large containers
    • B65D90/12Supports
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22BMETHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00Component parts or details of steam boilers
    • F22B37/02Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/24Supporting, suspending, or setting arrangements, e.g. heat shielding
    • F22B37/246Supporting, suspending, or setting arrangements, e.g. heat shielding for steam generators of the reservoir type, e.g. nuclear steam generators

Definitions

  • the invention is in the field of the storage of a horizontally lying pressure vessel and is applicable to the structural design of the displacement-free assignment of the pressure vessel and the boiler chair.
  • Support devices are known for the storage of horizontally lying, large pressure vessels, such as those used primarily in steam power plants such as conventional power plants and nuclear power plants, which essentially consist of a boiler chair arranged between the pressure vessel and the foundation with a shell-like support surface (boiler chair shell) adapted to the container wall ) consist.
  • a boiler chair arranged between the pressure vessel and the foundation with a shell-like support surface (boiler chair shell) adapted to the container wall ) consist.
  • it is known to weld holding brackets to the pressure vessel which are welded to a bearing by means of lugs, which in the installed state are on the side edge the boiler chair shell rests (DE-AS-2 840 528).
  • This functionally reliable assignment of pressure vessel and boiler chair is, however, relatively complex in terms of production technology. In addition, it does not offer any protection against twisting the pressure vessel in the boiler chair.
  • the invention has for its object to reduce the manufacturing outlay for the axial securing of the pressure vessel in the boiler chair and also to provide security against rotation.
  • the holding elements are designed as multi-layer weld fillets with a contact surface running parallel to the side edges of the boiler chair shell, a fitting piece being inserted between the respective weld fillet and the associated side edge of the boiler chair shell, which is provided by means of an on the boiler chair fixed bracket is fixed, and that to secure the container against twisting on the container shell and the boiler chair shell eyes are coaxially welded into which a non-rotatable axis is inserted.
  • Such a configuration of the fixed assignment of pressure vessel and boiler chair can be handled easily in terms of production technology and offers a secure fixation of the pressure vessel in the axial direction and in the circumferential direction.
  • the holder of the respective fitting can have the shape of a circuit board and can be welded or screwed to the boiler chair shell.
  • Figures 1 to 4 An embodiment of the new support device is shown in Figures 1 to 4.
  • Figures 1 and 2 show the support device in side view and in cross section, while Figures 3 and 4 show details of the axial fixation between the pressure vessel and the boiler chair.
  • a pressure vessel 1 lies horizontally on the boiler chair 3, which is mounted on the foundation 2.
  • the boiler chair 3 consists of the base plate 7, the support feet 4 and 5 as well as the boiler chair shell 6.
  • multi-layer welds 9 are applied to the jacket of the container, which are provided with a contact surface by appropriate mechanical processing, which is parallel to the side edge or are provided to the side surface 8 of the boiler chair shell 6.
  • Removable fitting pieces 10 are inserted between these fillet welds 9 and the kettle chair shell 6, via which the pressure vessel and the kettle chair shell are non-positively connected to one another.
  • the respective fitting piece 10 is fixed in its position by means of a circuit board 11 welded onto the boiler chair shell 6. Fitting piece 10 and board 11 are assigned to one another in such a way that the board 11 engages in a recess in the fitting piece or is pressed against the fitting piece.
  • eyes 12 are further welded to the jacket of the pressure vessel.
  • Further eyes 13 are welded to the kettle chair shell 6, all eyes being arranged coaxially.
  • a shaft 14 is inserted through the eyes, which cannot be rotated by welding with the eyes or as a result of a corresponding profiling or with the aid of feather keys in the eyes.

Abstract

1. A supporting arrangement for horizontally disposed cylindrical pressure vessels (1), particularly but not exclusively, for corresponding pressure vessels in steam power installations, said arrangement consisting of a boiler support disposed between the vessel and the base plate with a boiler supporting shell (6) acting as a shell-like supporting surface with side edges (8) running at right angles to the longitudinal extension of the vessel, wherein for axial fixing the vessel is connected to the boiler support at a plurality of locations with the help of retaining elements which are welded to the vessel and act on the side edges of the boiler supporting shell, characterised in that the retaining elements are in the form of multi-layer built-up welds (9) with a contact face running parallel to the side edges (8) of the boiler supporting shell (6), a shim (10) being inserted between each built-up weld (9) and the associated side edge (8) of the boiler supporting shell and being secured by means of a holder (11) fastened to the boiler support ; and in that in order to secure the vessel (1) against rotation, eyes (12, 13) are welded coaxially on the wall of the vessel and the boiler supporting shell through which eyes a shaft (14) is inserted which cannot be rotated.

Description

Die Erfindung liegt auf dem Gebiet der Lagerung eines waagerecht liegenden Druckbehälters und ist bei der konstruktiven Ausgestaltung der verschiebungsfreien Zuordnung von Druckbehälter und Kesselstuhl anzuwenden.The invention is in the field of the storage of a horizontally lying pressure vessel and is applicable to the structural design of the displacement-free assignment of the pressure vessel and the boiler chair.

Zur Lagerung waagerecht liegender, grosser Druckbehälter, wie sie vor allem in Dampfkraftanlagen wie konventionellen Kraftwerken und Kernkraftwerken eingesetzt werden, sind Abstützvorrichtungen bekannt, die im wesentlichen aus einem zwischen dem Druckbehälter und dem Fundament angeordneten Kesselstuhl mit einer an die Behälterwand angepassten, schalenartigen Auflagefläche (Kesselstuhlschale) bestehen. Um axiale Verschiebungen zwischen dem Druckbehälter und dem Kesselstuhl, wie sie beispielsweise durch Stossbeanspruchungen (z.B. Erdbeben) auftreten könnten, zu vermeiden, ist es bekannt, an den Druckbehälter Halteeisen anzuschweissen, die über Knaggen mit einem Lager verschweisst sind, das im Einbauzustand an der Seitenkante der Kesselstuhlschale anliegt (DE-AS-2 840 528). Diese von der Funktion her sichere Zuordnung von Druckbehälter und Kesselstuhl ist allerdings fertigungstechnisch relativ aufwendig. Sie bietet ausserdem keine Sicherung gegen Verdrehen des Druckbehälters im Kesselstuhl.Support devices are known for the storage of horizontally lying, large pressure vessels, such as those used primarily in steam power plants such as conventional power plants and nuclear power plants, which essentially consist of a boiler chair arranged between the pressure vessel and the foundation with a shell-like support surface (boiler chair shell) adapted to the container wall ) consist. In order to avoid axial displacements between the pressure vessel and the boiler chair, as might occur, for example, due to impact loads (e.g. earthquakes), it is known to weld holding brackets to the pressure vessel, which are welded to a bearing by means of lugs, which in the installed state are on the side edge the boiler chair shell rests (DE-AS-2 840 528). This functionally reliable assignment of pressure vessel and boiler chair is, however, relatively complex in terms of production technology. In addition, it does not offer any protection against twisting the pressure vessel in the boiler chair.

Aus der FR-A-2 168 674 ist es zur Sicherung eines kugelförmigen Behälters gegen Verdrehen bekannt, seitlich am Behältermantel und an der Kesselstuhlschale Augen aufzuschweissen und jeweils einen Bolzen nicht verdrehbar einzustecken.From FR-A-2 168 674 it is known, in order to secure a spherical container against twisting, to weld eyes to the side of the container shell and to the kettle chair shell and to insert a bolt each so that it cannot rotate.

Ausgehend von einer Abstützvorrichtung mit den Merkmalen des ersten Teils des Anspruches 1 liegt der Erfindung die Aufgabe zugrunde, den fertigungstechnischen Aufwand für die axiale Sicherung des Druckbehälters im Kesselstuhl zu verringern und darüber hinaus eine Sicherung gegen Verdrehen vorzusehen.Starting from a support device with the features of the first part of claim 1, the invention has for its object to reduce the manufacturing outlay for the axial securing of the pressure vessel in the boiler chair and also to provide security against rotation.

Zur Lösung dieser Aufgabe ist gemäss der Erfindung vorgesehen, dass die Halteelemente als mehrlagige Auftragsschweissungen mit einer parallel zu den Seitenkanten der Kesselstuhlschale verlaufenden Anlageflächen ausgebildet sind, wobei zwischen die jeweilige Auftragsschweissung und die zugeordnete Seitenkante der Kesselstuhlschale ein Passstück eingefügt ist, das mittels einer am Kesselstuhl befestigten Halterung fixiert ist, und dass zur Sicherung des Behälters gegen Verdrehen auf dem Behältermantel und die Kesselstuhlschale Augen koaxial aufgeschweisst sind, in die eine nicht verdrehbare Achse eingesteckt ist.To achieve this object, it is provided according to the invention that the holding elements are designed as multi-layer weld fillets with a contact surface running parallel to the side edges of the boiler chair shell, a fitting piece being inserted between the respective weld fillet and the associated side edge of the boiler chair shell, which is provided by means of an on the boiler chair fixed bracket is fixed, and that to secure the container against twisting on the container shell and the boiler chair shell eyes are coaxially welded into which a non-rotatable axis is inserted.

Eine derartige Ausgestaltung der fixierten Zuordnung von Druckbehälter und Kesselstuhl lässt sich fertigungstechnisch einfach handhaben und bietet eine sichere Fixierung des Druckbehälters in axialer Richtung sowie in Umfangsrichtung. Dabei kann die Halterung des jeweiligen Passstückes die Form einer Platine haben und mit der Kesselstuhlschale verschweisst oder verschraubt sein.Such a configuration of the fixed assignment of pressure vessel and boiler chair can be handled easily in terms of production technology and offers a secure fixation of the pressure vessel in the axial direction and in the circumferential direction. The holder of the respective fitting can have the shape of a circuit board and can be welded or screwed to the boiler chair shell.

Ein Ausführungsbeispiel der neuen Abstützvorrichtung ist in den Figuren 1 bis 4 dargestellt. Dabei zeigen die Figuren 1 und 2 die Abstützvorrichtung in Seitenansicht sowie im Querschnitt, während die Figuren 3 und 4 Details der axialen Fixierung zwischen Druckbehälter und Kesselstuhl wiedergegeben.An embodiment of the new support device is shown in Figures 1 to 4. Figures 1 and 2 show the support device in side view and in cross section, while Figures 3 and 4 show details of the axial fixation between the pressure vessel and the boiler chair.

Gemäss Fig. 1 liegt ein Druckbehälter 1 waagerecht auf dem Kesselstuhl 3 auf, der auf das Fundament 2 montiert ist. Der Kesselstuhl 3 besteht aus der Grundplatte 7, den Tragfüssen 4 und 5 sowie der Kesselstuhlschale 6. Seitlich der Kesselstuhlschale sind auf den Mantel des Behälters 1 mehrlagige Auftragsschweissungen 9 aufgebracht, die durch entsprechende mechanische Bearbeitung mit einer Anlagefläche versehen sind, die parallel zur Seitenkante bzw. zur Seitenfläche 8 der Kesselstuhlschale 6 versehen sind. Zwischen diese Auftragsschweissungen 9 und die Kesselstuhlschale 6 sind herausnehmbare Passstücke 10 eingefügt, über die der Druckbehälter und die Kesselstuhlschale kraftschlüssig miteinander verbunden sind. Gemäss den Figuren 3 und 4 ist das jeweilige Passstück 10 mittels einer auf die Kesselstuhlschale 6 geschweissten Platine 11 in seiner Lage fixiert. Passstück 10 und Platine 11 sind einander so zugeordnet, dass die Platine 11 in eine Ausnehmung des Passstückes eingreift oder gegen das Passstück gedrückt ist.1, a pressure vessel 1 lies horizontally on the boiler chair 3, which is mounted on the foundation 2. The boiler chair 3 consists of the base plate 7, the support feet 4 and 5 as well as the boiler chair shell 6. On the side of the boiler chair shell 1 multi-layer welds 9 are applied to the jacket of the container, which are provided with a contact surface by appropriate mechanical processing, which is parallel to the side edge or are provided to the side surface 8 of the boiler chair shell 6. Removable fitting pieces 10 are inserted between these fillet welds 9 and the kettle chair shell 6, via which the pressure vessel and the kettle chair shell are non-positively connected to one another. According to FIGS. 3 and 4, the respective fitting piece 10 is fixed in its position by means of a circuit board 11 welded onto the boiler chair shell 6. Fitting piece 10 and board 11 are assigned to one another in such a way that the board 11 engages in a recess in the fitting piece or is pressed against the fitting piece.

Zur Sicherung des Druckbehälters 1 gegen Verdrehen sind weiterhin mit dem Mantel des Druckbehälters Augen 12 verschweisst. Weitere Augen 13 sind mit der Kesselstuhlschale 6 verschweisst, wobei alle Augen koaxial angeordnet sind. Durch die Augen ist eine Welle 14 gesteckt, die durch Verschweissung mit den Augen oder infolge einer entsprechenden Profilierung oder mit Hilfe von Passfedern in den Augen nicht verdrehbar ist.To secure the pressure vessel 1 against twisting eyes 12 are further welded to the jacket of the pressure vessel. Further eyes 13 are welded to the kettle chair shell 6, all eyes being arranged coaxially. A shaft 14 is inserted through the eyes, which cannot be rotated by welding with the eyes or as a result of a corresponding profiling or with the aid of feather keys in the eyes.

Claims (2)

1. A supporting arrangement for horizontally disposed cylindrical pressure vessels (1), particularly but not exclusively, for corresponding pressure vessels in steam power installations, said arrangement consisting of a boiler support disposed between the vessel and the base plate with a boiler supporting shell (6) acting as a shell-like supporting surface with side edges (8) running at right angles to the longitudinal extension of the vessel, wherein for axial fixing the vessel is connected to the boiler support at a plurality of locations with the help of retaining elements which are welded to the vessel and act on the side edges of the boiler supporting shell, characterised in that the retaining elements are in the form of multi-layer built-up welds (9) with a contact face running parallel to the side edges (8) of the boiler supporting shell (6), a shim (10) being inserted between each built-up weld (9) and the associated side edge (8) of the boiler supporting shell and being secured by means of a holder (11) fastened to the boiler support; and in that in order to secure the vessel (1) against rotation, eyes (12, 13) are welded coaxially on the wall of the vessel and the boiler supporting shell through which eyes a shaft (14) is inserted which cannot be rotated.
2. A supporting arrangement as claimed in claim 1, characterised in that the holder (11) in the form of a flat plate is welded or bolted to the boiler supporting shell (6).
EP84111066A 1983-09-28 1984-09-17 Supporting arrangement for horizontally disposed pressure vessels Expired EP0141970B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84111066T ATE28355T1 (en) 1983-09-28 1984-09-17 SUPPORTING DEVICE FOR HORIZONTAL PRESSURE TANKS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19833335546 DE3335546A1 (en) 1983-09-28 1983-09-28 SUPPORTING DEVICE FOR LEVEL PRESSURE TANKS
DE3335546 1983-09-28

Publications (2)

Publication Number Publication Date
EP0141970A1 EP0141970A1 (en) 1985-05-22
EP0141970B1 true EP0141970B1 (en) 1987-07-15

Family

ID=6210599

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84111066A Expired EP0141970B1 (en) 1983-09-28 1984-09-17 Supporting arrangement for horizontally disposed pressure vessels

Country Status (6)

Country Link
EP (1) EP0141970B1 (en)
JP (1) JPS6096806A (en)
AT (1) ATE28355T1 (en)
BR (1) BR8404871A (en)
DE (2) DE3335546A1 (en)
ES (1) ES290730Y (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4637214A (en) * 1985-12-17 1987-01-20 Westinghouse Electric Corp. Single-ended steam chest with improved support assembly
CO5040026A1 (en) 1997-05-28 2001-05-29 Basf Ag FUNGICIDE BLENDS THAT INCLUDE CARBAMATES AND AN AROMATIC ACTIVE SUBSTANCE CONTAINING FLUOR OR CHLORINE
JP5463251B2 (en) * 2010-09-17 2014-04-09 日立アプライアンス株式会社 Compressor and compressor built-in products
CN109458609B (en) * 2018-11-13 2019-11-12 中国核动力研究设计院 A kind of pressurized water reactor nuclear power station steam generator water supply ring bearing structure and system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2168674A5 (en) * 1972-01-20 1973-08-31 Worms Engeenering
DE2840528C3 (en) * 1978-09-18 1982-07-22 Kraftwerk Union AG, 4330 Mülheim Support device for horizontally lying, cylindrical pressure vessels
DE3116570A1 (en) * 1981-04-25 1982-12-23 Kraftanlagen Ag, 6900 Heidelberg Fixed point of large pipelines which become hot

Also Published As

Publication number Publication date
DE3464795D1 (en) 1987-08-20
ES290730Y (en) 1986-10-16
BR8404871A (en) 1985-08-13
JPS6096806A (en) 1985-05-30
ES290730U (en) 1986-03-16
JPH036401B2 (en) 1991-01-30
DE3335546A1 (en) 1985-04-04
EP0141970A1 (en) 1985-05-22
ATE28355T1 (en) 1987-08-15

Similar Documents

Publication Publication Date Title
EP0370427B1 (en) Core insertions for a water-cooled nuclear reactor
EP0141970B1 (en) Supporting arrangement for horizontally disposed pressure vessels
DE2604273A1 (en) CONNECTING DEVICE FOR A HANGING DEVICE SUBJECT TO VARIOUS MOVEMENTS
DE2141502A1 (en) IN ESSENTIAL RIGID BODY BEARINGS
DE1902187A1 (en) Hydrostatic rotary vane machine
DE2230606B2 (en) Device for the mutual support of two components arranged one above the other, at least one of which is a cylindrical or spherically curved container, e.g. a boiler drum, a steam accumulator or the like. is
EP0141206B1 (en) Supporting arrangement for horizontally disposed pressure vessels
DE2410437A1 (en) VERTICAL ELECTRIC MACHINE, IN PARTICULAR HYDROPOWER GENERATOR
DE3329179A1 (en) Internal retaining ring
DE2851949C2 (en)
DE2154545A1 (en) DEVICE FOR ASSEMBLING ROLLER BEARINGS
EP0075793B1 (en) Storage rack for oblong fuel elements
DE2742069C3 (en) Support vane ring for a sheet steel volute casing of a flow machine
EP0288757B1 (en) Flanged joint and water heater
DE2541167A1 (en) Expansion compensating pedestal for vertical rotor machine - is rotationally symmetrical array of oblique leaf springs
DE1405607C (en) Storage of a pivot on the underframe of rail vehicles
DE3322752A1 (en) Combined indexing and rotating table
DE952207C (en) Device for circulating gases or liquids
DE417956C (en) Hanger bearings, especially for sewing machine drives
EP0697585A2 (en) Electric dynamo meter
DE922470C (en) Safety device to prevent the loosening of rotatable parts, in particular for the bushings of the wheel sets of rail vehicles carrying tapered roller bearings
DE1769241A1 (en) Washing or rectifying column assembled from parts
DE1013469B (en) Shaft bearing centered like a ball joint in the machine stand
DE8611964U1 (en) Central grinding pot attachment for ball mills
EP0231806A2 (en) Depositing and testing apparatus for screw-tightening devices

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 CH DE FR IT LI

17P Request for examination filed

Effective date: 19850304

17Q First examination report despatched

Effective date: 19860203

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT CH DE FR IT LI

REF Corresponds to:

Ref document number: 28355

Country of ref document: AT

Date of ref document: 19870815

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3464795

Country of ref document: DE

Date of ref document: 19870820

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: SIEMENS AKTIENGESELLSCHAFT BERLIN UND MUENCHEN

ITF It: translation for a ep patent filed

Owner name: STUDIO JAUMANN

ET Fr: translation filed
REG Reference to a national code

Ref country code: CH

Ref legal event code: PUE

Owner name: SIEMENS AKTIENGESELLSCHAFT BERLIN UND MUENCHEN

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: 19890825

Year of fee payment: 6

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

Ref country code: FR

Payment date: 19890928

Year of fee payment: 6

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: CH

Payment date: 19891218

Year of fee payment: 6

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

Ref country code: AT

Effective date: 19900917

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

Ref country code: LI

Effective date: 19900930

Ref country code: CH

Effective date: 19900930

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

Ref country code: FR

Effective date: 19910530

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

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

Ref country code: DE

Payment date: 19941118

Year of fee payment: 11

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

Ref country code: DE

Effective date: 19960601