EP0282406B1 - Vorrichtung, um das Ende eines in einem Rohr rotierenden beweglichen Elementes in Position zu halten, und Anwendung dieser Vorrichtung - Google Patents

Vorrichtung, um das Ende eines in einem Rohr rotierenden beweglichen Elementes in Position zu halten, und Anwendung dieser Vorrichtung Download PDF

Info

Publication number
EP0282406B1
EP0282406B1 EP88400540A EP88400540A EP0282406B1 EP 0282406 B1 EP0282406 B1 EP 0282406B1 EP 88400540 A EP88400540 A EP 88400540A EP 88400540 A EP88400540 A EP 88400540A EP 0282406 B1 EP0282406 B1 EP 0282406B1
Authority
EP
European Patent Office
Prior art keywords
bearing
tube
arms
forming
shank
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
EP88400540A
Other languages
English (en)
French (fr)
Other versions
EP0282406A1 (de
Inventor
David Freychet
Roben Loutaty
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.)
TotalEnergies Marketing Services SA
Original Assignee
Compagnie de Raffinage et de Distribution Total France SA
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 Compagnie de Raffinage et de Distribution Total France SA filed Critical Compagnie de Raffinage et de Distribution Total France SA
Priority to AT88400540T priority Critical patent/ATE61103T1/de
Publication of EP0282406A1 publication Critical patent/EP0282406A1/de
Application granted granted Critical
Publication of EP0282406B1 publication Critical patent/EP0282406B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G3/00—Rotary appliances
    • F28G3/08—Rotary appliances having coiled wire tools, i.e. basket type

Definitions

  • the present invention relates to a device for holding in position one end of an element mounted to rotate in a tube.
  • the invention also relates to an application of this device to the prevention of fouling and to the continuous cleaning of a conduit where a fluid circulates.
  • Maintaining the position of the movable elements inside the tubes poses certain problems, however, because these elements must be freely rotated by the fluid, without significantly affecting the circulation thereof in the tubes and without causing a sharp drop in pressure.
  • the present invention aims to provide a device for holding in position one end of an element mounted to move in rotation in a tube, which meets the above conditions and limits the fouling of the heat exchangers in order to improve transfers. heat.
  • the invention also aims to provide such a fixing device which is inexpensive to produce and which can be easily mounted on the tube equipped with the movable element in rotation, without requiring tools or attachments such as screws and pins.
  • Another object of the invention is to propose a device of this type which can be made integral simultaneously with the upstream end of the tube fitted with the movable element in rotation and with the upstream end of this movable element.
  • the invention finally aims to provide such a device which can be easily adapted to tubes of different diameters.
  • the subject of the invention is a device for holding in position in a tube one end of an element driven in rotation by a fouling fluid circulating in said tube and intended to prevent its fouling and to ensure its cleaning by continuous, the other end of said element being free
  • this device being of the type comprising a bearing member capable of being made rigidly integral with one end of said tube, and an element mounted free in rotation relative to said bearing member and rendered integral with one end of the movable element, said device being characterized in that the bearing member is a monobloc member made of a rigid material capable of deforming elastically, this monobloc member comprising at least two branches separated by a distance such that they can be forcibly engaged in an open end of said tube to bear elastically against the internal wall of the latter, so as to make rigidly integral with said tube said member forming a bearing.
  • the bearing member will, for example, substantially have the shape of a U comprising two divergent branches from the central part or base of the U, this member can be made by folding a simple metal strip.
  • the bearing member may also include three or four branches, or even more, adjoining the same central part and arranged regularly with respect thereto.
  • the bearing member may be made by folding from a flat star-shaped part with three or four branches, or more.
  • the branches of the bearing member will generally have the form of bands but may also have the form of rods.
  • the branches of the bearing member can be introduced directly into the opening of a tube by bringing them closer to each other and then allowing them to move apart by elasticity to come to bear against the internal wall of the tube from which they thus become united.
  • Said branches may advantageously be extended at one of their ends by a lug of reduced transverse dimensions, which alone will be introduced into the tube, while the transverse edges of the end of these branches, on either side of said lug, will take pressing against the edge of the corresponding end of the tube, thus giving a fixed position to said member and thereby preventing its entrainment in the tube.
  • the device according to the invention therefore allows the user to adapt to the local conditions of the tubes to be fitted with a mobile element.
  • At least one notch can advantageously be made in said flat piece at the level of the fold line of each of the branches, in the general direction thereof. here, on either side of this fold line.
  • the element mounted to rotate relative to the bearing member may be constituted, in a manner known per se, by a pin comprising a head and a rod engaged in an orifice in the central part of the bearing part, the end of said rod can be made integral by any means known in the art of the movable member associated with the tube on which is mounted the bearing member.
  • the free end of said rod may, for example, be bent and cooperate with a ring-shaped end of the movable element or vice versa.
  • the free end of the rod may also be hollow, so as to be able to engage the corresponding end of the mobile element therein, the associated ends being able to be made integral with one another by crimping, by welding, by a screw system or other.
  • a anti-wear washer may be interposed between these members and advantageously crimped on the bearing.
  • An essential advantage of the device according to the invention is therefore that it can be mounted at the end of a tube and made integral with the latter without requiring any tool or any assembly member whatsoever.
  • Another advantage is to be able to produce, by adequate folding of the flat part, devices suitable for tubes of different diameters.
  • the use of the device according to the invention for maintaining in position one end of a movable element, disposed inside a tube and able to be driven in rotation by a fluid circulating in it, in order to prevent fouling of this tube, proves to be very advantageous in the case of the tubes of a heat exchanger. Indeed, the ends of these tubes are usually engaged in orifices of retaining plates which close the exchanger at each of its ends and the tubes either protrude a few millimeters outside of these plates, or are welded flush with these plates. In both cases, the use of the device according to the invention is advantageous.
  • the device shown in the drawings comprises, on the one hand, a member 1 forming a bearing, of substantially U-shaped section, the two branches 2 of which diverge from the base 3, and, on the other hand, a pin 4, comprising a head 5 and a rod 6 engaged in an opening 7 in the base 3 of the bearing 1.
  • the rod 6 of the journal is disposed inside the bearing 1 between the branches 2.
  • FIG. 3 shows in 8 ⁇ , in broken lines, lugs perpendicular to the branches 1 and 2, which can replace the lugs 8.
  • FIG. 2 shows in broken lines, slots 20 to reduce pressure drops.
  • an anti-friction washer 9 which can be free, welded or crimped. Its contact surface with the head 5 of the pin can be flat or hemispherical, depending on the profile of this head.
  • the bearing 1 is in one piece and can be produced from a flat metallic piece in the form of a band, shown in FIG. 2, by folding around two lines 10.
  • notches 11 may be formed on the strip 1, perpendicular to the fold lines. It will be noted that from the same flat part 1, it is possible, by making vary the spacing x of the fold lines 10, to make bearings suitable for tubes of different diameters.
  • the mounting of the bearing 1 at the end of a tube 12 can be carried out by bringing the branches 2 together, to engage the lugs 8 inside the tube 12, the transverse edges of the branches 2 contiguous with the lugs 8 coming to bear against the edge of the tube 12. If these branches 2 are then released, they tend, by elasticity, to spread apart one from the other and the lugs 8 come to bear against the internal wall of the tube 12, making the bearing 1 integral with this tube, without the need to use any tool and any assembly piece that is.
  • FIG. 1 illustrates the application of the device according to the invention to the maintenance in position of one end of a helical element 13, driven in rotation in a tube 12 of a heat exchanger by the fluid circulating in this tube in the direction indicated by the arrow F1, in order to prevent fouling thereof and / or to ensure its internal cleaning.
  • the rod 6 of the pin 4 is hollow and the end of the tube 12 is engaged there and crimped or welded.
  • the rod 6 and the end 14 of the movable element 13 could be made integral by other means known per se, for example, by using a rod whose end, bent in the manner of a hook, is engaged in a ring with which the end of the mobile element 1 is fitted, or vice versa by folding this end of the mobile element in the manner of a hook and engaging it in a ring provided at the end of the pin of the journal.
  • FIG. 6 represents an implementation, in a tube 18 curved in a U, at the ends of said tube, of two devices in accordance with the invention.
  • the fluid circulates in the direction indicated by the arrow F2, from the upstream end 21 of the tube 18 to the downstream end 22 of said tube.
  • the lugs 8 ending the branches 2 of the bearing 1 are engaged in the tube as described in relation to Figure 1, and the head 5 of the journal, as before, is outside of the bearing 1.
  • the bearing 1 has been engaged in the opposite direction in the tube, with the base 3 of this bearing arranged inside the tube, the U-shaped section of the bearing opening towards the end 22 of said tube.
  • the two branches having a preferably curved profile, under the effect of the circulating fluid, bear by elasticity against the internal wall of the tube 18.
  • the washer 9 is arranged in the same way as above.
  • the pin 4 ⁇ is produced differently.
  • the head 5 ⁇ of the journal arranged inside the tube and connected by the rod 6 ⁇ to another mobile 13 ⁇ , is extended by a rod 23 passing through the base 3 of the bearing 1. So that the journal remains trapped in the bearing, the end 24 of rod 23 is for example split beforehand so that during assembly, by separating the two lips 25 from rod, the pin remains secured to the bearing.
  • the head 5 ⁇ remains constantly in contact with the internal surface of the washer 9.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cleaning In General (AREA)
  • Supports For Pipes And Cables (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Battery Mounting, Suspending (AREA)
  • Coating Apparatus (AREA)
  • Toys (AREA)
  • Resistance Heating (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Drying Of Solid Materials (AREA)

Claims (12)

1. Vorrichtung zum Halten in Position eines Endes eines Elementes in einem Rohr (12), welches Element durch ein im Rohr zirkulierendes,verschmutzendes Fluid zu einer Rotation angetrieben ist und welches dazu bestimmt ist, die Ver­schmutzung des Rohres zu verhindern und kontinuierlich dessen Reinigung sicherzustellen, wobei das andere Ende frei ist, wobei die Vorrichtung der Art ist, daß sie ein ein Lager bildendes Organ (1), welches für eine starre Verbindung mit einem Ende des Rohres ausgebildet ist, und ein Element (4) umfaßt, welches relativ zum das Lager ausbildenden Organ (1) zu einer Rotation frei beweglich ist und mit einem Ende des mobilen Elementes (13) verbunden ist, dadurch gekennzeichnet, daß das das Lager bildende Organ (1) ein einstückiges Organ aus elastisch verformbarem, starren Material ist, wobei das einstückige Organ wenigstens zwei durch einen Abstand derart getrennte Arme (2) aufweist, daß diese kraftschlüssig mit einem offenen Ende des Rohres (12) verbunden werden können, um elastisch an die Innenwand desselben in Anlage zu gelan­gen, so daß das das Lager (1) bildende Organ fest mit diesem verbunden ist.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das das Lager bildende Organ ausgehend von einem flachen Stück durch Faltung der Arme (2) um Faltlinien (10) herge­stellt ist.
3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß sich Kerben (11) normal auf die Faltlinien zu beiden Seiten derselben erstrecken.
4. Vorrichtung nach einem der Ansprüche 2 oder 3, dadurch gekennzeichnet, daß das Lager (1) ein im wesentlichen U- för­miges Profil aufweist und zwei den Schenkeln des U entsprechende Arme (2) aufweist, welche ausgehend von dessen Basis (3) divergieren.
5. Vorrichtung nach einem der Ansprüche 2 oder 3, dadurch gekennzeichnet, daß das Lager (1) mehr als zwei zu einem zentralen Bereich regelmäßig angeordnete Arme aufweist und von einem ebenen Stück in Form eines Sterns mit mehrerer Armen abgeleitet ist.
6. Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Arme (2) des Lagers (1) durch Vor­sprünge ( 8, 8ʹ) verlängert sind, welche die Vorrichtung in Rohr ( 12 ) halten.
7. Vorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß das relativ zum Lager (1) rotierbar angeordnete Element (4) ein Zapfen ist, welcher einen Kopf (5) und einen Schaft (6) aufweist, welcher in eine Öffnung (7) des zentralen Bereiches (3) des die Arme (2) verbindenden Lagera eingreift.
8. Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, daß der Schaft (6) hohl ist, um das Ende des beweglichen Elements aufnehmen zu können.
9. Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, daß der Schaft (6) ein umgebogenes Ende aufweist, um mit einem Dereich in Form eines Ringes des Endes des leweglichen Elements, oder umgekehrt, durch Einhaken zusammenwirken.
10. Vorrichtung nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß die Arme (2) Schlitze (20) aufweisen.
11. Vorrightung nach einem der Ansprüche 7 bis 10, dadurch gekennzeichnet, daß eine Unterlagscheibe (9) zwischen dem Lager (3) und dem Kopf (5) des Zapfens (4) zwischengeschaltet ist.
12. Anwendung von zwei Vorrichtungen nach einem der Ansprüche 1 bis 11 in einem U-förmigen Rohr, dadurch gekennzeichnet, daß die am stromabwärtigen Ende dem U-förmigen Rohres ange­ordnete Vorrichtung derart ausgebildet ist, daß der Kopf (5ʹ) des Zapfens im Inneren des Rohres angeordnet ist und durch einen Schaft (23) verlängert ist, welcher durch die Basis (3) des Lagers (1) hindurchtritt, dessen Ende des Zapfen im Lager hält.
EP88400540A 1987-03-13 1988-03-08 Vorrichtung, um das Ende eines in einem Rohr rotierenden beweglichen Elementes in Position zu halten, und Anwendung dieser Vorrichtung Expired - Lifetime EP0282406B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88400540T ATE61103T1 (de) 1987-03-13 1988-03-08 Vorrichtung, um das ende eines in einem rohr rotierenden beweglichen elementes in position zu halten, und anwendung dieser vorrichtung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8703462A FR2612267B1 (fr) 1987-03-13 1987-03-13 Dispositif pour le maintien en position d'une extremite d'un element monte mobile en rotation dans un tube et application de ce dispositif
FR8703462 1987-03-13

Publications (2)

Publication Number Publication Date
EP0282406A1 EP0282406A1 (de) 1988-09-14
EP0282406B1 true EP0282406B1 (de) 1991-02-27

Family

ID=9348940

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88400540A Expired - Lifetime EP0282406B1 (de) 1987-03-13 1988-03-08 Vorrichtung, um das Ende eines in einem Rohr rotierenden beweglichen Elementes in Position zu halten, und Anwendung dieser Vorrichtung

Country Status (11)

Country Link
US (1) US4848446A (de)
EP (1) EP0282406B1 (de)
JP (1) JP2533604B2 (de)
KR (1) KR0124932B1 (de)
AT (1) ATE61103T1 (de)
AU (1) AU595690B2 (de)
CA (1) CA1315499C (de)
DE (1) DE3861804D1 (de)
ES (1) ES2020604B3 (de)
FR (1) FR2612267B1 (de)
GR (1) GR3001518T3 (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2637659B1 (fr) * 1988-10-10 1991-01-18 Total France Dispositif perfectionne pour le maintien en position d'une extremite d'un element monte mobile en rotation dans un tube
FR2639425B1 (fr) * 1988-11-18 1991-06-07 Total France Procede et dispositif de nettoyage d'un tube dans lequel circule un fluide, et utilisation dans les tubes d'echangeurs de chaleur
US5043956A (en) * 1989-06-26 1991-08-27 Seiko Instruments Inc. Wristwatch with oscillation alarm
BR0012365A (pt) 1999-07-12 2003-07-15 Halliburton Energy Serv Inc Processo para o tratamento de correntes quentes/mornas de poço de hidrocarbonetos com pressão relativamente elevada, e, aparelho de tratamento para precipitar um sólido dissolvido em um óleo
FR2890162B1 (fr) * 2005-08-30 2007-11-30 Total France Sa Dispositif reducteur d'encrassement d'un echangeur thermique tubulaire.
US9687843B2 (en) 2007-10-23 2017-06-27 Becton, Dickinson And Company Tissue container for molecular and histology diagnostics incorporating a breakable membrane
FR2940152B1 (fr) 2008-12-19 2011-01-21 Total Raffinage Marketing Dispositif pour la reduction de l'encrassement a l'interieur d'un tube
CN106390490B (zh) * 2016-06-16 2019-01-04 湖南工业大学 一种冲动伞式自然循环蒸发器
CN107875658B (zh) * 2017-10-30 2019-09-10 俞天翔 波流阀自动清洗式竖管降膜蒸发器
FR3094764B1 (fr) 2019-04-05 2021-05-14 Total Raffinage Chimie Insert d’extrémité de conduit
FR3165010A1 (fr) 2024-07-25 2026-01-30 IFP Energies Nouvelles Installation et procede d’hydrotraitement ou d’hydroconversion avec echangeurs de chaleur tubulaires munis d’inserts
FR3165061A1 (fr) 2024-07-25 2026-01-30 IFP Energies Nouvelles Insert rotatif pour tube d’echangeur de chaleur
FR3165060A1 (fr) 2024-07-25 2026-01-30 IFP Energies Nouvelles Insert rotatif pour tube d’echangeur de chaleur comportant une aide a la rotation
FR3165062A1 (fr) 2024-07-25 2026-01-30 IFP Energies Nouvelles Insert pour tubes d’echangeur de chaleur diphasique

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4174750A (en) * 1978-04-18 1979-11-20 Nichols Billy M Tube cleaner having anchored rotatable spiral member
US4583585A (en) * 1981-07-22 1986-04-22 Elf France System for cleaning tube-type exchangers automatically during operation
US4564066A (en) * 1981-07-29 1986-01-14 Gorman Jeremy W Perforate bearing plate for turbulators in heat exchangers
DE3327321A1 (de) * 1983-07-29 1985-02-07 Motoren-Werke Mannheim AG vorm. Benz Abt. stationärer Motorenbau, 6800 Mannheim Vorrichtung zum reinigen des mindestens einen rohres von waermeuebertragern
US4641705A (en) * 1983-08-09 1987-02-10 Gorman Jeremy W Modification for heat exchangers incorporating a helically shaped blade and pin shaped support member
FR2554520B1 (fr) * 1983-11-09 1986-05-02 Elf France Dispositif de fixation rotative d'un element dans un tube
FR2569829B1 (fr) * 1984-08-31 1989-06-16 Raffinage Cie Francaise Procede et dispositif mecanique destines a ameliorer les transferts thermiques et a prevenir l'encrassement des echangeurs de chaleur
FR2592924B1 (fr) * 1986-01-10 1989-10-20 Total France Dispositif de maintien en position d'une extremite d'un element mobile, entraine en rotation dans un tube et application a la prevention de l'encrassement et au nettoyage de ce tube.
US4701245A (en) * 1986-05-05 1987-10-20 W. R. Grace & Co. Oxidation of organic compounds using a catalyzed cerium (IV) composition

Also Published As

Publication number Publication date
ATE61103T1 (de) 1991-03-15
AU1303388A (en) 1988-09-15
KR0124932B1 (ko) 1997-12-23
JP2533604B2 (ja) 1996-09-11
DE3861804D1 (de) 1991-04-04
AU595690B2 (en) 1990-04-05
KR880011951A (ko) 1988-10-31
GR3001518T3 (en) 1992-11-23
FR2612267A1 (fr) 1988-09-16
ES2020604B3 (es) 1991-08-16
US4848446A (en) 1989-07-18
EP0282406A1 (de) 1988-09-14
FR2612267B1 (fr) 1989-07-21
CA1315499C (fr) 1993-04-06
JPS63291677A (ja) 1988-11-29

Similar Documents

Publication Publication Date Title
EP0282406B1 (de) Vorrichtung, um das Ende eines in einem Rohr rotierenden beweglichen Elementes in Position zu halten, und Anwendung dieser Vorrichtung
WO2000032976A1 (fr) Coupleur a billes
EP0233092B1 (de) Vorrichtung, um das Ende eines in einem Rohr rotierenden beweglichen Elementes in Position zu halten, und Anwendung für diese Vorrichtung
WO2009033885A1 (fr) Balai d'essuyage a projection de liquide pour vitres de vehicule
EP3220034B1 (de) Kupplungselement für die verbindung von flüssigkeitsführenden bauteilen und kupplung mit einem solchen element.
FR2955651A1 (fr) Dispositif de nettoyage de surfaces, mobile, et application particuliere pour le nettoyage des elements de refroidisseur thermique
FR2760783A1 (fr) Element d'un train de tiges de forage rotatif
EP3150896A1 (de) Schlauchklemme mit abstandhalter
EP1934546B1 (de) Vorrichtung zur reduzierung des fouling-verhaltens bei einem rohrwärmetauscher
FR2583335A1 (fr) Tete d'extrusion a filiere rotative et procede de lubrification de cette tete
EP1678435B1 (de) Führungsrohr für einen flexiblen kanal zum transport von kohlenwasserstoffen
FR2967250A1 (fr) Echangeur de chaleur avec dispositif de raccordement
FR2637659A1 (fr) Dispositif perfectionne pour le maintien en position d'une extremite d'un element monte mobile en rotation dans un tube
FR2913479A1 (fr) Joint tournant et rotor correspondant pour appareil a helices entrainees par l'ejection de gaz sous pression sur une pale et de l'helice, notamment pour helicoptere.
FR2663691A3 (fr) Structure pour relier des tuyaux.
EP2015016A1 (de) Wärmetauscher für Heizbottich
FR2749919A1 (fr) Dispositif de raccordement
FR2782938A1 (fr) Procede et dispositif de grattage de la surface externe d'elements longilignes tels des profiles
FR2866409A3 (fr) Raccord femelle pour conduite de fluide
FR2681032A1 (fr) Dispositif de chauffage d'un liquide de lave-glace, en particulier pour vehicule automobile.
EP2596875B1 (de) Rohrreinigungseinrichtung
FR2734337A1 (fr) Ensemble de flexible pour gaz, muni de raccords
FR2806762A1 (fr) Dispositif de fixation du type vis-ecrou a desserrage rapide
FR3094764A1 (fr) Insert d’extrémité de conduit
FR2869088A1 (fr) Raccord femelle pour conduite de fluide

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): AT BE DE ES GB GR IT NL SE

17P Request for examination filed

Effective date: 19890126

17Q First examination report despatched

Effective date: 19900115

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE DE ES GB GR IT NL SE

REF Corresponds to:

Ref document number: 61103

Country of ref document: AT

Date of ref document: 19910315

Kind code of ref document: T

ITF It: translation for a ep patent filed
REF Corresponds to:

Ref document number: 3861804

Country of ref document: DE

Date of ref document: 19910404

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

Ref country code: GR

Ref legal event code: FG4A

Free format text: 3001518

EAL Se: european patent in force in sweden

Ref document number: 88400540.6

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

Ref country code: SE

Payment date: 19960226

Year of fee payment: 9

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

Ref country code: AT

Payment date: 19960229

Year of fee payment: 9

Ref country code: GR

Payment date: 19960229

Year of fee payment: 9

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

Ref country code: AT

Effective date: 19970308

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

Ref country code: SE

Effective date: 19970309

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

Ref country code: GR

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

Effective date: 19970930

REG Reference to a national code

Ref country code: GR

Ref legal event code: MM2A

Free format text: 3001518

EUG Se: european patent has lapsed

Ref document number: 88400540.6

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

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

Ref country code: IT

Payment date: 20060331

Year of fee payment: 19

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

Ref country code: NL

Payment date: 20070313

Year of fee payment: 20

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

Ref country code: DE

Payment date: 20070316

Year of fee payment: 20

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

Ref country code: GB

Payment date: 20070322

Year of fee payment: 20

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

Ref country code: ES

Payment date: 20070329

Year of fee payment: 20

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

Ref country code: BE

Payment date: 20070419

Year of fee payment: 20

BE20 Be: patent expired

Owner name: CIE DE RAFFINAGE ET DE DISTRIBUTION *TOTAL FRANCE

Effective date: 20080308

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20080307

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

Ref country code: NL

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20080308

NLV7 Nl: ceased due to reaching the maximum lifetime of a patent

Effective date: 20080308

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 EXPIRATION OF PROTECTION

Effective date: 20080307

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20080310

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 EXPIRATION OF PROTECTION

Effective date: 20080310

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

Ref country code: IT

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

Effective date: 20070308