EP0531632B1 - Suspension device for a tank - Google Patents

Suspension device for a tank Download PDF

Info

Publication number
EP0531632B1
EP0531632B1 EP92110331A EP92110331A EP0531632B1 EP 0531632 B1 EP0531632 B1 EP 0531632B1 EP 92110331 A EP92110331 A EP 92110331A EP 92110331 A EP92110331 A EP 92110331A EP 0531632 B1 EP0531632 B1 EP 0531632B1
Authority
EP
European Patent Office
Prior art keywords
tank
struts
suspension device
wall
jacket structure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP92110331A
Other languages
German (de)
French (fr)
Other versions
EP0531632A1 (en
Inventor
Herbert Metz
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.)
Airbus Defence and Space GmbH
Original Assignee
Daimler Benz Aerospace 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 Daimler Benz Aerospace AG filed Critical Daimler Benz Aerospace AG
Publication of EP0531632A1 publication Critical patent/EP0531632A1/en
Application granted granted Critical
Publication of EP0531632B1 publication Critical patent/EP0531632B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS 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
    • B65D90/00—Component parts, details or accessories for large containers
    • B65D90/12—Supports
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/01—Reinforcing or suspension means
    • F17C2203/014—Suspension means

Definitions

  • the invention relates to a suspension device for a tank according to the preamble of claim 1.
  • Such a suspension device is known from US-A-3,272,375.
  • a storage structure for the inner tank of a cryogenic liquid container is shown there.
  • the container has an outer shell structure and an inner tank which is suspended from the outer shell structure via struts.
  • Inside the tank there are two support structures, each made up of four pieces of pipe that intersect and are brought together in the middle, arranged transversely to the longitudinal axis of the tank.
  • a middle part is inserted, from which two struts lead through two of the pipes outwards through the tank wall to the jacket structure in which they are anchored. Due to the two support structures that support the inner tank, no clear transfer of the forces originating from the tank to the jacket structure is possible. In addition, bending stresses arise in the struts from outside.
  • the invention has for its object to provide a suspension device of the type mentioned so that a largely tension-free suspension of the tank is created in the jacket structure, while the heat exchange from the jacket structure in the tank and vice versa by the fasteners is low.
  • the main advantage of the invention is that by the struts connected to the central part and also by the tubes between the central part and the tank outer skin, an ideal stiffening both the shell structure and the tank is present.
  • thermal shrinkage (for low temperature tanks) or thermal expansion (for high temperature tanks) of the tank has no effect on the preload of the tank suspension elements.
  • the struts running from the jacket structure to the central part form a long thermal bridge that transports only small amounts of heat from the jacket structure to the tank. The loss of tank volume due to the internal structure is only about 1 percent.
  • the central part is arranged in the middle of the tank and the struts go off in a star shape to the shell structure.
  • the central part has a tube center piece, from the ends of which four struts each extend in a star shape to the jacket structure.
  • the struts are made of fiber-reinforced plastic. This material, either glass fiber reinforced or carbon reinforced plastic depending on the load, has the advantage of low thermal expansion and high load capacity.
  • the space between the tubes connecting the central part with the tank outer wall and the struts is filled with a thermal insulation material. This prevents cold or heat from the tank from being conducted to the outside via the struts.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Description

Die Erfindung betrifft eine Aufhängevorrichtung für einen Tank gemäß dem Oberbegriff des Anspruches 1.The invention relates to a suspension device for a tank according to the preamble of claim 1.

Eine solche Aufhängevorrichtung ist durch die US-A-3 272 375 bekannt. Dort ist eine Lagerstruktur für den inneren Tank eines kryogenen Flüssigkeitsbehälters gezeigt. Der Behälter hat eine äußere Mantelstruktur und einen inneren Tank, der über Streben an der äußeren Mantelstruktur aufgehängt ist. Im Inneren des Tanks befinden sich zwei quer zur Längsachse des Tanks angeordnete Stützgerüste aus je vier sich kreuzenden und in der Mitte zusammengeführten Rohrstücken. In die Mitte dieser gasdichten Rohrsterne ist je ein Mittelteil eingesetzt, von dem aus je zwei Streben durch zwei der Rohre nach außen durch die Tankwandung hindurch zur Mantelstruktur führen, in der sie verankert sind. Durch die zwei Stützgerüste, die den inneren Tank tragen, ist keine eindeutige Übertragung der aus dem Tank herrührenden Kräfte auf die Mantelstruktur möglich. Außerdem entstehen bei Beanspruchungen von außen in den Streben Biegemomente.Such a suspension device is known from US-A-3,272,375. A storage structure for the inner tank of a cryogenic liquid container is shown there. The container has an outer shell structure and an inner tank which is suspended from the outer shell structure via struts. Inside the tank there are two support structures, each made up of four pieces of pipe that intersect and are brought together in the middle, arranged transversely to the longitudinal axis of the tank. In the middle of these gas-tight pipe stars, a middle part is inserted, from which two struts lead through two of the pipes outwards through the tank wall to the jacket structure in which they are anchored. Due to the two support structures that support the inner tank, no clear transfer of the forces originating from the tank to the jacket structure is possible. In addition, bending stresses arise in the struts from outside.

Der Erfindung liegt die Aufgabe zugrunde, eine Aufhängevorrichtung der eingangs genannten Art so auszubilden, daß eine weitgehend spannungsfreie Aufhängung des Tanks in der Mantelstruktur geschaffen wird, wobei zugleich der Wärmeaustausch von der Mantelstruktur in den Tank und umgekehrt durch die Befestigungsteile gering ist.The invention has for its object to provide a suspension device of the type mentioned so that a largely tension-free suspension of the tank is created in the jacket structure, while the heat exchange from the jacket structure in the tank and vice versa by the fasteners is low.

Diese Aufgabe wird durch die im Anspruch 1 gekennzeichneten Merkmale gelöst. Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen gekennzeichnet.This object is achieved by the features characterized in claim 1. Advantageous embodiments of the invention are characterized in the subclaims.

Der wesentliche Vorteil der Erfindung besteht darin, daß durch die mit dem Zentralteil verbundenen Streben und ebenfalls durch die Rohre zwischen dem Zentralteil und der Tankaußenhaut eine ideale Versteifung sowohl der Mantelstruktur als auch des Tanks vorhanden ist. Somit hat bei dieser Konstruktion ein thermisches Schrumpfen (bei Tieftemperaturtanks) oder eine thermische Dehnung (bei Hochtemperaturtanks) des Tanks keinen Einfluß auf die Vorspannung der Tankaufhängungselemente. Die von der Mantelstruktur bis zum Zentralteil verlaufenden Streben bilden eine lange Wärmebrücke, die nur geringe Wärmemengen von der Mantelstruktur bis zum Tank transportiert. Der Verlust an Tankvolumen durch die Innenstruktur beträgt nur etwa 1 Prozent.The main advantage of the invention is that by the struts connected to the central part and also by the tubes between the central part and the tank outer skin, an ideal stiffening both the shell structure and the tank is present. Thus, with this design, thermal shrinkage (for low temperature tanks) or thermal expansion (for high temperature tanks) of the tank has no effect on the preload of the tank suspension elements. The struts running from the jacket structure to the central part form a long thermal bridge that transports only small amounts of heat from the jacket structure to the tank. The loss of tank volume due to the internal structure is only about 1 percent.

Bei geringen Anforderungen an die Verdrehsteifigkeit ist das Zentralteil in der Tankmitte angeordnet und die Streben gehen sternförmig zur Mantelstruktur ab. Zur Verbesserung der Verdrehsteifigkeit weist das Zentralteil ein Rohrmittelstück auf, von dessen Enden je vier Streben sternförmig zur Mantelstruktur abgehen. Nach Anspruch 2 bestehen die Streben aus faserverstärktem Kunststoff. Dieses Material, entweder je nach Belastung glasfaserverstärkter oder kohlenstoffverstärkter Kunststoff, hat den Vorteil einer geringen Wärmedehnung und hoher Belastbarkeit. Nach Anspruch 3 ist der Raum zwischen den das Zentralteil mit der Tankaußenwand verbindenden Rohren und den Streben mit einem thermischen Isolationsmaterial ausgefüllt. Hierdurch wird verhindert, daß Kälte bzw. Wärme aus dem Tank über die Streben nach außen geleitet wird. Schließlich besteht nach Anspruch 4 die Möglichkeit, bei großen Anforderungen an die Verdrehsteifigkeit der gesamten Konstruktion zwischen der Tankaußenwand und der Mantelstruktur tangential zur Tankaußenwand Tangentialstreben anzuordnen. Wegen der relativ geringen Last, mit der diese Streben beansprucht sind, kann ihre Wandstärke gering sein. Hierdurch wird auch die mögliche Wärmeleitung in den Tank stark verringert.If the torsional rigidity is low, the central part is arranged in the middle of the tank and the struts go off in a star shape to the shell structure. To improve the torsional rigidity, the central part has a tube center piece, from the ends of which four struts each extend in a star shape to the jacket structure. According to claim 2, the struts are made of fiber-reinforced plastic. This material, either glass fiber reinforced or carbon reinforced plastic depending on the load, has the advantage of low thermal expansion and high load capacity. According to claim 3, the space between the tubes connecting the central part with the tank outer wall and the struts is filled with a thermal insulation material. This prevents cold or heat from the tank from being conducted to the outside via the struts. Finally, according to claim 4, there is the possibility of arranging tangential struts tangentially to the tank outer wall in the case of high demands on the torsional rigidity of the entire construction between the tank outer wall and the casing structure. Because of the relatively low load with which these struts are stressed, their wall thickness can be small. This also greatly reduces the possible heat conduction into the tank.

Die Erfindung wird nachstehend anhand der in der Zeichnung dargestellten Ausführungsformen näher erläutert. Es zeigen:

Fig. 1
eine erste Ausführungsform einer Aufhängevorrichtung für einen Tank;
Fig. 2
einen Schnitt II-II durch die Fig. 1 und
Entsprechend Fig. 1 ist ein Tank 1 in einer mantelförmigen Rumpfstruktur 2 durch acht Rohre 3 befestigt. Die Streben 3 durchdringen den Tank 1 und laufen in der Mitte des Tanks in einem Zentralteil 4 zusammen. Letzteres hat ein Rohrmittelstück 4a, von dessen Enden je vier Rohrendstücke 4b abgehen, welche die Streben 3 in sich aufnehmen. Die Rohrendstücke 4b sind mit Verbindungsrohren 5 verbunden, die an der Tankwandung 1a in Rohrmuffen 6 enden und in denen die Streben 3 geführt sind. Alle vier Rohrmuffen 6 jeder Seite sind in die Tankwandung 1a verstärkenden Spantprofilen 7 eingelassen. Der Innenraum der Verbindungsrohre 5 ist gasdicht gegen das Innere des Tanks 1 abgedichtet und mit einem thermischen Isolationsmaterial 8 gefüllt. Einige an der Tankwandung 1a angeordnete Längsstreben 9 dienen zur weiteren Versteifung des Tanks 1. Die Streben 3 sind in der Rumpfaußenhaut 2a in Muffen 11 befestigt, die in Spantprofile 12 der Rumpfstruktur 2 eingelassen sind. Zwischen der Rumpfstruktur 2 und dem Tank 1 kann auch thermisches Isolationsmaterial 13 eingebracht sein. Die Streben 3 sind bevorzugt aus faserverstärktem Werkstoff und die Verbindungsrohre 5 aus Aluminium gefertigt.The invention is explained below with reference to the embodiments shown in the drawing. Show it:
Fig. 1
a first embodiment of a suspension device for a tank;
Fig. 2
a section II-II through FIGS. 1 and
1, a tank 1 is fastened in a jacket-shaped fuselage structure 2 by eight pipes 3. The struts 3 penetrate the tank 1 and converge in a central part 4 in the middle of the tank. The latter has a pipe center piece 4a, from the ends of which four pipe end pieces 4b each extend, which accommodate the struts 3. The pipe end pieces 4b are connected to connecting pipes 5 which end on the tank wall 1a in pipe sleeves 6 and in which the struts 3 are guided. All four pipe sleeves 6 on each side are embedded in the frame profiles 7 reinforcing the tank wall 1a. The interior of the connecting pipes 5 is sealed gas-tight against the interior of the tank 1 and filled with a thermal insulation material 8. Some longitudinal struts 9 arranged on the tank wall 1 a serve to further stiffen the tank 1. The struts 3 are fastened in the outer shell 2a of the casing in sleeves 11, which are embedded in frame profiles 12 of the hull structure 2. Thermal insulation material 13 can also be introduced between the fuselage structure 2 and the tank 1. The struts 3 are preferably made of fiber-reinforced material and the connecting tubes 5 made of aluminum.

Claims (4)

  1. A suspension device for a tank which is surrounded by a jacket structure, having gas-tight tubes situated inside the tank and converging to a central point and struts situated inside the tubes, which struts join a central put to the jacket structure through the tank outer wall, characterised in that a central part situated centrally inside the tank (central part 4) extends transverse to the longitudinal axis of the tank (1), that the central part (4) consists of a tube central piece (4a), from the ends of which four tube end pieces (4b) each branch off which are arranged in the shape of a star, to which tube end pieces four gas-tight connecting tubes (5) attached to the tank wall (1a) are joined, in which connecting tubes the struts (3) leading to the jacket structure (2) are guided.
  2. A suspension device according to claim 1, characterised in that the struts (3) consist of fibre-reinforced plastic.
  3. A suspension device according to claim 1, characterised in that the space between the connecting tubes (5) and the struts (3) is filled with thermal insulation material.
  4. A suspension device according to any one Of claims 1 to 3, characterised in that tangential struts, which are disposed tangentially to the tank outer wall, are present between the tank outer wall (1a) and the jacket structure (2) in order to improve the torsional stiffness.
EP92110331A 1991-07-01 1992-06-19 Suspension device for a tank Expired - Lifetime EP0531632B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4121762 1991-07-01
DE4121762A DE4121762C1 (en) 1991-07-01 1991-07-01

Publications (2)

Publication Number Publication Date
EP0531632A1 EP0531632A1 (en) 1993-03-17
EP0531632B1 true EP0531632B1 (en) 1995-09-13

Family

ID=6435181

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92110331A Expired - Lifetime EP0531632B1 (en) 1991-07-01 1992-06-19 Suspension device for a tank

Country Status (4)

Country Link
US (1) US5263604A (en)
EP (1) EP0531632B1 (en)
DE (2) DE4121762C1 (en)
ES (1) ES2079740T3 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6732881B1 (en) 1998-10-15 2004-05-11 Mobil Oil Corporation Liquefied gas storage tank
US7111750B2 (en) 1998-10-15 2006-09-26 Exxonmobil Upstream Research Company Liquefied natural gas storage tank
DE10008985A1 (en) * 2000-02-25 2001-08-30 Linde Ag Reservoir container for cryogenic fluids; has insulation space between inner and outer containers with reinforcement webs may be formed on walls or support plates may be welded in inner container
US6298540B1 (en) * 2000-09-28 2001-10-09 Eaton Corporation Combined fuel pump, level sender and rollover venting valve for a fuel tank
DE10128516A1 (en) * 2001-06-13 2002-12-19 Linde Ag Container, in particular for storing cryogenic liquids primarily liquid hydrogen, comprises outer and inner containers joined to one another by at least two suspension units incorporating hinged bars
DE10305397B4 (en) * 2003-02-11 2005-07-14 Dirk Dr.-Ing. Büchler pressure vessel
AT7582U1 (en) * 2003-02-18 2005-05-25 Magna Steyr Fahrzeugtechnik Ag DOUBLE-WALLED CONTAINER FOR CRYOGENEOUS LIQUIDS
FR2857082B1 (en) * 2003-07-02 2005-08-19 Air Liquide CRYOGENIC FLUID RESERVOIR AND USE IN A MOTOR VEHICLE
US7717287B2 (en) 2005-09-26 2010-05-18 Gm Global Technology Operations, Inc. Liquid hydrogen storage tank with radial stiffening
WO2012028651A1 (en) 2010-09-02 2012-03-08 Matthias Rebernik Vessel arrangement, in particular cryogenic vessel arrangement
US10406497B2 (en) 2013-12-05 2019-09-10 Exxonmobil Research And Engineering Company Reactor bed vessel and support assembly
US9636652B2 (en) 2013-12-05 2017-05-02 Exxonmobil Research And Engineering Company Reactor bed vessel and support assembly
DE102014203351B4 (en) * 2014-02-25 2017-10-19 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Support for storage and thermal insulation of fluid tanks
EP3012190B1 (en) * 2014-10-20 2018-05-16 PFW Aerospace GmbH Bladder-free fuel tank
FR3068106B1 (en) * 2017-06-26 2020-10-09 Ateliers Et Chantiers De La Grande Bruyere Acgb LIQUEFIED NATURAL GAS TANK FOR MOTOR VEHICLES

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE543151A (en) *
US1005933A (en) * 1908-12-22 1911-10-17 Metallic Barrel Company Metallic vessel.
US1416849A (en) * 1920-09-25 1922-05-23 C H Loop Steel Mfg Company Tank
US2800249A (en) * 1954-12-06 1957-07-23 Constock Liquid Methane Corp Tanks for storing cold boiling liquids
US2863297A (en) * 1955-03-29 1958-12-09 Herrick L Johnston Inc Method and apparatus for storing liquified gases
US3154212A (en) * 1961-05-08 1964-10-27 Cryo Sonics Inc Vessel mounting system
US3207353A (en) * 1961-10-20 1965-09-21 Union Carbide Corp Cryogenic liquid storage containers
DE1186087B (en) * 1962-07-19 1965-01-28 Hans Siebert Dipl Ing Device to display the level of liquid gas bottles
US3272375A (en) * 1965-03-03 1966-09-13 Union Carbide Corp Apparatus for cryogenic liquid storage containers
US3782128A (en) * 1970-06-01 1974-01-01 Lox Equip Cryogenic storage vessel
DE2746870C2 (en) * 1977-10-19 1982-08-26 Rosenthal Technik Ag, 8672 Selb Process for the manufacture of composite outdoor insulators
DE2903787C2 (en) * 1979-02-01 1983-11-03 Messerschmitt-Bölkow-Blohm GmbH, 8000 München Suspension device for a low-temperature tank arranged in a thermally insulated manner in an external container
US4231481A (en) * 1979-04-13 1980-11-04 Boeing Commercial Airplane Company Convertible container for fluent or solid cargo
DE2942164C3 (en) * 1979-10-18 1982-03-25 Kernforschungsanlage Jülich GmbH, 5170 Jülich Wall support for double-walled containers, in particular Dewar vessels and containers provided with them
US4992313A (en) * 1987-12-14 1991-02-12 Shobert James P Fiber-reinforced plastic strut connecting link

Also Published As

Publication number Publication date
DE4121762C1 (en) 1992-09-10
DE59203664D1 (en) 1995-10-19
US5263604A (en) 1993-11-23
ES2079740T3 (en) 1996-01-16
EP0531632A1 (en) 1993-03-17

Similar Documents

Publication Publication Date Title
EP0531632B1 (en) Suspension device for a tank
DE69229803T2 (en) Container for a pressurized fluid
DE3400043C2 (en)
DE2840807C2 (en) Force introduction element for a sandwich component
DE3012938C2 (en)
EP1714866B1 (en) Monocoque wing structure
DE3612176C2 (en)
DE2457264C2 (en) VACUUM-INSULATED STORAGE OR TRANSPORT CONTAINER FOR LOW-BOILING LIQUID GASES
EP1395774B1 (en) Storage container for cryogenic media
DE2805229A1 (en) SUPPORT ARRANGEMENT FOR A CONTAINER
DE2622231A1 (en) TRANSPORT MEANS, IN PARTICULAR SHIP, FOR THE TRANSPORTATION OF LIQUID GAS
EP0073851B1 (en) Steam generator with two vertical gas passages connected by a transverse gas passage
DE3931478C1 (en) Triangular tubular frame - is made of circular or elliptical section plastics tubes fastened together
DE1958883A1 (en) Nuclear reactor fuel element
EP1355107A2 (en) Pressure vessel
AT370226B (en) COMPOSITE CONSTRUCTION FOR CONTAINERS
EP0260440B1 (en) Corner joint between two composite fibre supports
DE10358308B4 (en) Holhlkammerrohr
DE2546477C2 (en) Ship tank for storing or transporting a pressurized flowable medium
DE904418C (en) Self-supporting car body, especially for rail vehicles
DE3116667C2 (en) Device for storing the inner container in the outer container of a vacuum-insulated cylindrical transport container
DE630297C (en) Single-spar aircraft wing
DE29909827U1 (en) pressure vessel
DE102021128569B3 (en) Dashboard support for a motor vehicle
DE2748437C2 (en) Drawbar wagons, especially sulky

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: A1

Designated state(s): DE ES FR GB IT SE

17P Request for examination filed

Effective date: 19930419

17Q First examination report despatched

Effective date: 19940428

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

Owner name: DAIMLER-BENZ AEROSPACE AKTIENGESELLSCHAFT

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES FR GB IT SE

ET Fr: translation filed
REF Corresponds to:

Ref document number: 59203664

Country of ref document: DE

Date of ref document: 19951019

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

Effective date: 19951107

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2079740

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

Ref country code: GB

Payment date: 19980526

Year of fee payment: 7

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

Ref country code: ES

Payment date: 19980612

Year of fee payment: 7

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

Ref country code: FR

Payment date: 19980622

Year of fee payment: 7

Ref country code: DE

Payment date: 19980622

Year of fee payment: 7

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

Ref country code: SE

Payment date: 19980629

Year of fee payment: 7

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: 19990619

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: 19990621

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

Ref country code: SE

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19990629

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

Ref country code: FR

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19990630

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

Effective date: 19990619

EUG Se: european patent has lapsed

Ref document number: 92110331.3

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: 20000503

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20030203

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;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: 20050619