EP0166712B1 - Coiler furnace - Google Patents
Coiler furnace Download PDFInfo
- Publication number
- EP0166712B1 EP0166712B1 EP85890102A EP85890102A EP0166712B1 EP 0166712 B1 EP0166712 B1 EP 0166712B1 EP 85890102 A EP85890102 A EP 85890102A EP 85890102 A EP85890102 A EP 85890102A EP 0166712 B1 EP0166712 B1 EP 0166712B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- reel
- mandrel
- heating
- heat
- heating tube
- 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
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/68—Furnace coilers; Hot coilers
Definitions
- the invention relates to a reel furnace with a reel, the mandrel of which is arranged within a heat protection hood and can be heated by means of a heating tube which can be pushed over the reel mandrel in the axial direction.
- the invention is therefore based on the object of providing a reel furnace in which the strip reel can be heated with hot gas on the reel mandrel without fear of scale formation due to heating and having to accept greater heat radiation from the strip reel.
- the invention achieves the object in that the heating tube consists of a radiant tube enclosed by a jacket and has at least one hot gas duct between the radiant tube and the jacket, and that the heat protection hood is double-walled to form at least one flow channel and that the outflow opening of the hot gas channel of the heating tube connects to an inflow opening of the flow channel of the heat protection hood at least in a displaced position of the heating tube.
- the hot gas is used to heat up the radiant tube and the reel mandrel is heated by the radiant heat emitted by the radiant tube, the same advantages are achieved for the heating of the tape reel from the heated coiler mandrel as with an electric heating device for the heating tube.
- An electric heating device creates the additional possibility of preheating the reel space enclosed by the heat protection hood with the help of the hot gases, so that not only heat radiation from the tape winding is largely prevented, but also the sensible waste heat of the hot gases can be better used.
- the hot gases can namely be suctioned off via the double-walled heat protection hood, the reel space being warmed up via the inner wall of the heat protection hood.
- the temperature difference between the warmed tape roll and the reel space is thereby considerably reduced, which results in a corresponding reduction in the heat radiation from the tape roll.
- the inflow opening of the flow duct of the heat protection hood connects to the outflow opening of the hot gas duct of the heating pipe, at least in a displacement position of the heating pipe, no special connection connection needs to be made. It is only necessary to ensure that when the jet pipe is heated with the hot gases, the heating pipe is in the shift position provided for this purpose. Whether the hot gas duct of the heating pipe serves as a combustion chamber for the hot gases or whether hot flue gases are introduced into this hot gas duct is of no great importance for the inventive concept.
- the coiler furnace shown consists essentially of a coiler 1, the coiler mandrel 2 of which projects into a heat protection hood 4 enclosing a coiler space 3.
- a heating tube 5 is used, which is arranged coaxially to the expanding mandrel 2 and can be pushed with the help of an actuating cylinder 6 through an appropriate passage opening in the heat protection hood 4 in an axial seal over the expanding mandrel 2.
- the arrangement is such that the heating tube 5 connects in its rest position shown in Fig. 2 with its free end to the heat protection hood 4, so that the passage opening provided in the heat protection hood 4 for the heating tube 5 is closed by it.
- the heating tube 5 consists of an inner jet pipe 7 and a heat-insulated jacket 8, the annular space between the jet pipe 7 and the jacket 8 serving as a hot gas channel 9 through which a hot gas flow is conducted to heat the jet pipe 7.
- a burner 10 can be used to generate such a hot gas flow.
- the heat protection hood according to the invention is double-walled, so that a flow channel 13 is formed between the heat-insulated outer wall 11 and the inner wall 12 forming a heat emission surface.
- a flow channel 13 is formed between the heat-insulated outer wall 11 and the inner wall 12 forming a heat emission surface.
- the hot gases can be led from the heating pipe 5 to an exhaust gas exhaust 14.
- the outflow opening 15 of the hot gas duct 9 of the heating tube 5 in the position shown in FIG. 2 connects to an inflow opening 16 of the flow duct 13 of the heat protection hood 4.
- the hot gases consequently flow via the outflow opening 15 through the inflow opening 16 into the flow channel 13, where they heat the reel space 3 via the inner wall 12 of the heat protection hood 4.
- the heating pipe 5 is shifted with the help of the actuating cylinder 6 from the rest position according to FIG. 2 into the working position according to FIG. 1 via the coiler mandrel 2 and the coiler mandrel 2 is heated up by heat radiation from the jet pipe 7.
- the reel temperature is required to be between 900 and 1,000 ° C
- the radiant tube must be heated up to 1,200 to 1,280 ° C, for example.
- the jet pipe 7 is not heated according to the exemplary embodiment. However, it would also be entirely possible to heat the coiler mandrel 2 simultaneously with the heating of the jet pipe 7 in the shifted position according to FIG. 1.
- the flow direction in the flow channel 13 would have to be reversed and the inflow opening 16 should be moved to the other end face of the heat protection hood 4.
- the jet pipe 7 cannot be heated during the winding or unwinding process.
- the heating tube is also to be heated while the tape is being wound or unwound, at least one further flow channel would have to be provided in the heat protection hood 4 so that the hot exhaust gases from the heating tube in the retracted heating tube position through one and in the advanced heating tube position through other flow channel of the heat protection hood can flow.
- the heating tube 5 After heating the reel mandrel 2 to the desired temperature, the heating tube 5 is pulled back into its rest position according to FIG. 2 and the strip to be heated is wound onto the reel mandrel 2, which now releases its heat to the strip reel.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Winding, Rewinding, Material Storage Devices (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
- Processes Specially Adapted For Manufacturing Cables (AREA)
- Manufacture Of Motors, Generators (AREA)
- Windings For Motors And Generators (AREA)
Description
Die Erfindung bezieht sich auf einen Haspelofen mit einem Haspel, dessen Dorn innerhalb einer Wärmeschutzhaube angeordnet und mittels eines in axialer Richtung über den Haspeldorn schiebbaren Heizrohres aufheizbar ist.The invention relates to a reel furnace with a reel, the mandrel of which is arranged within a heat protection hood and can be heated by means of a heating tube which can be pushed over the reel mandrel in the axial direction.
Um eine erwärmungsbedingte Zunderbildung beim Aufwärmen des auf den Haspeldorn aufgewickelten Bandes mit Hilfe von in den Haspelofen eingeleiteten Heißgasen zu vermeiden, ist es bekannt (AT-PS 373 290), den Haspeldorh über ein Heizrohr aufzuheizen, das eine elektrische Heizeinrichtung aufweist und in axialer Richtung über den Haspeldorn geschoben werden kann. Der mit Hilfe des Heizrohres erwärmte Haspeldorn wirkt somit als Heizkörper für das nach dem Abziehen des Heizrohres auf den Haspeldorn aufgewickelte Band, wobei der Bandwickel durch Wärmeleitung von innen heraus erwärmt wird. Die Aufwärmung des Haspeldornes über eine Induktionswicklung des Heizrohres ist zwar einfach, doch ist man von einer entsprechenden elektrischen Energiequelle abhängig. Außerdem bleibt der durch die Wärmeschutzhaube abgegrenzte Haspelraum unbeheizt, was zu einer vergrößerten Wärmeabfuhr vom aufzuwärmenden Bandwickel durch Strahlung und Konvektion führt.In order to avoid heating-related scale formation when heating up the strip wound on the coiler mandrel with the aid of hot gases introduced into the coiler, it is known (AT-PS 373 290) to heat the coiler through a heating tube which has an electrical heating device and in the axial direction can be pushed over the mandrel. The reel mandrel heated with the help of the heating tube thus acts as a heating element for the strip wound on the reel mandrel after the heating tube has been pulled off, the strip winding being heated from the inside by heat conduction. The heating of the reel mandrel via an induction winding of the heating tube is simple, but one is dependent on a corresponding electrical energy source. In addition, the reel space delimited by the heat protection hood remains unheated, which leads to an increased heat dissipation from the tape reel to be heated up by radiation and convection.
Der Erfindung liegt somit die Aufgabe zugrunde, einen Haspelofen zu schaffen, bei dem der Bandwickel auf dem Haspeldorn mit Heißgas erwärmt werden kann, ohne eine erwärmungsbedingte Zunderbildung befürchten und eine größere Wärmeabstrahlung vom Bandwickel in Kauf nehmen zu müssen.The invention is therefore based on the object of providing a reel furnace in which the strip reel can be heated with hot gas on the reel mandrel without fear of scale formation due to heating and having to accept greater heat radiation from the strip reel.
Ausgehend von einem Haspelofen der eingangs geschilderten Art löst die Erfindung die gestellte Aufgabe dadurch, daß das Heizrohr aus einem von einem Mantel umschlossenen Strahlrohr besteht und zwischen dem Strahlrohr und dem Mantel wenigstens einen Heißgaskanal aufweist, daß die Wärmeschutzhaube zur Bildung wenigstens eines Strömungskanales doppelwandig ausgebildet ist und daß die Ausströmöffnung des Heißgaskanales des Heizrohres zumindest in einer Verschiebestellung des Heizrohres an eine Einströmöffnung des Strömungskanales der Wärmeschutzhaube anschließt.Starting from a reel furnace of the type described at the outset, the invention achieves the object in that the heating tube consists of a radiant tube enclosed by a jacket and has at least one hot gas duct between the radiant tube and the jacket, and that the heat protection hood is double-walled to form at least one flow channel and that the outflow opening of the hot gas channel of the heating tube connects to an inflow opening of the flow channel of the heat protection hood at least in a displaced position of the heating tube.
Da das Heißgas zum Aufwärmen des Strahlrohres dient und der Haspeldorn über die vom Strahlrohr abgegebene Strahlungswärme erwärmt wird, werden für die Aufwärmung des Bandwickels vom aufgeheizten Haspeldorn her die gleichen Vorteile wie bei einer elektrischen Heizeinrichtung für das Heizrohr erreicht. Einer elektrischen Heizeinrichtung gegenüber wird aber die zusätzliche Möglichkeit geschaffen, den von der Wärmeschutzhaube umschlossenen Haspelraum mit Hilfe der Heißgase vorzuwärmen, so daß nicht nur eine Wärmeabstrahlung vom Bandwickel weitgehend verhindert, sondern auch die fühlbare Abwärme der Heißgase besser genützt werden kann. Nach dem Aufheizen des Strahlrohres können nämlich die Heißgase über die doppelwandig ausgebildete Wärmeschutzhaube abgesaugt werden, wobei über die Innenwand der Wärmeschutzhaube der Haspelraum aufgewärmt wird. Die Temperaturdifferenz zwischen dem aufgewärmten Bandwickel und dem Haspelraum wird dadurch erheblich verringert, was eine entsprechende Verringerung der Wärmeabstrahlung vom Bandwickel zur Folge hat. Da zumindest in einer Verschiebestellung des Heizrohres die Einströmöffnung des Strömungskanales der Wärmeschutzhaube an die Ausströmöffnung des Heißgaskanales des Heizrohres anschließt, braucht keine besondere Anschlußverbindung hergestellt zu werden. Es muß lediglich darauf geachtet werden, daß sich beim Aufheizen des Strahlrohres mit den Heißgasen das Heizrohr in der hiefür vorgesehenen Verschiebestellung befindet. Ob dabei der Heißgaskanal des Heizrohres als Brennraum für die Heißgase dient oder ob heiße Rauchgase in diesen Heißgaskanal eingeführt werden, spielt für den Erfindungsgedanken keine wesentliche Rolle.Since the hot gas is used to heat up the radiant tube and the reel mandrel is heated by the radiant heat emitted by the radiant tube, the same advantages are achieved for the heating of the tape reel from the heated coiler mandrel as with an electric heating device for the heating tube. An electric heating device, however, creates the additional possibility of preheating the reel space enclosed by the heat protection hood with the help of the hot gases, so that not only heat radiation from the tape winding is largely prevented, but also the sensible waste heat of the hot gases can be better used. After the radiant tube has been heated up, the hot gases can namely be suctioned off via the double-walled heat protection hood, the reel space being warmed up via the inner wall of the heat protection hood. The temperature difference between the warmed tape roll and the reel space is thereby considerably reduced, which results in a corresponding reduction in the heat radiation from the tape roll. Since the inflow opening of the flow duct of the heat protection hood connects to the outflow opening of the hot gas duct of the heating pipe, at least in a displacement position of the heating pipe, no special connection connection needs to be made. It is only necessary to ensure that when the jet pipe is heated with the hot gases, the heating pipe is in the shift position provided for this purpose. Whether the hot gas duct of the heating pipe serves as a combustion chamber for the hot gases or whether hot flue gases are introduced into this hot gas duct is of no great importance for the inventive concept.
In der Zeichnung ist der Erfindungsgegenstand beispielsweise dargestellt. Es zeigen
- Figur 1 einen erfindungsgemäßen Haspelofen mit einem über den Haspeldorn geschobenen Heizrohr in einem schematischen Schnitt und
Figur 2 diesen Haspelofen in einer entsprechenden Darstellung, allerdings mit vom Haspeldorn abgezogenem Heizrohr.
- Figure 1 shows a reel furnace according to the invention with a heating tube pushed over the reel mandrel in a schematic section and
- Figure 2 shows this coiler in a corresponding representation, but with the heating tube removed from the coiler mandrel.
Der gezeichnete Haspelofen besteht im wesentlichen aus einem Haspel 1, dessen Haspeldorn 2 in eine einen Haspelraum 3 umschließende Wärmeschutzhaube 4 ragt. Zum Aufwärmen des Haspeldornes 2 dient ein Heizrohr 5, das koaxial zum Spreizdorn 2 angeordnet ist und mit Hilfe eines Stellzylinders 6 durch eine entsprechende Durchtrittsöffnung in der Wärmeschutzhaube 4 in axialer Dichtung über den Spreizdorn 2 geschoben werden kann. Die Anordnung ist dabei so getroffen, daß das Heizrohr 5 in seiner in Fig. 2 dargestellten Ruhestellung mit seinem freien Ende an die Wärmeschutzhaube 4 anschließt, so daß die in der Wärmeschutzhaube 4 vorgesehene Durchtrittsöffnung für das Heizrohr 5 durch es verschlossen wird.The coiler furnace shown consists essentially of a coiler 1, the
Das Heizrohr 5 besteht aus einem inneren Strahlrohr 7 und einem wärmeisolierten Mantel 8, wobei der Ringraum zwischen dem Strahlrohr 7 und dem Mantel 8 als Heißgaskanal 9 dient, durch den eine Heißgasströmung zum Erhitzen des Strahlrohres 7 geführt wird. Für die Erzeugung einer solchen Heißgasströmung kann ein Brenner 10 eingesetzt werden.The
Im Gegensatz zu herkömmlichen Wärmeschutzhauben ist die Wärmeschutzhaube nach der Erfindung doppelwandig ausgebildet, so daß sich zwischen der wärmeisolierten Außenwand 11 und der eine Wärmeabgabefläche bildenden Innenwand 12 ein Strömungskanal 13 entsteht, über den die Heißgase aus dem Heizrohr 5 zu einem Abgasabzug 14 geführt werden können. Zu diesem Zweck schließt die Ausströmöffnung 15 des Heißgaskanales 9 des Heizrohres 5 in der in Fig. 2 gezeichneten Stellung an eine Einströmöffnung 16 des Strömungskanales 13 der Wärmeschutzhaube 4 an. Die Heißgase strömen folglich über die Ausströmöffnung 15 durch die Einströmöffnung 16 in den Strömungskanal 13, wo sie über die Innenwand 12 der Wärmeschutzhaube 4 den Haspelraum 3 erwärmen. Ist das Strahlrohr 7 entsprechend aufgewärmt, so wird das Heizrohr 5 mit Hilfe des Stellzylinders 6 aus der Ruhestellung nach Fig. 2 in die Arbeitsstellung nach Fig. 1 über den Haspeldorn 2 verschoben und der Haspeldorn 2 durch Wärmestrahlung vom Strahlrohr 7 her aufgewärmt. Bei einer erforderlichen Haspeltemperatur von 900 bis 1 000 °C ist das Strahlrohr beispielsweise auf 1 200 bis 1 280 °C aufzuwärmen. Während der Aufwärmperiode des Haspeldornes wird das Strahlrohr 7 gemäß dem Ausführungsbeispiel nicht beheizt. Es wäre aber auch durchaus möglich, die Aufwärmung des Haspeldornes 2 gleichzeitig mit der Erwärmung des Strahlrohres 7 in der Verschiebestellung nach Fig. 1 durchzuführen. In diesem Falle müßte die Strömungsrichtung im Strömungskanal 13 umgekehrt und die Einströmöffnung 16 auf die andere Stirnseite der Wärmeschutzhaube 4 verlegt werden. Bei einer solchen Anordnung kann allerdings das Strahlrohr 7 nicht während des Auf- bzw. Abwickelvorganges aufgeheizt werden. Soll auch während des Auf- bzw. Abwickelns des Bandes das Heizrohr beheizt werden, so müßte in der Wärmeschutzhaube 4 wenigstens ein weiterer Strömungskanal vorgesehen sein, damit die heißen Abgase aus dem Heizrohr in der zurückgezogenen Heizrohrstellung durch den einen und in der vorgeschobenen Heizrohrstellung durch den anderen Strömungskanal der Wärmeschutzhaube strömen können.In contrast to conventional heat protection hoods, the heat protection hood according to the invention is double-walled, so that a
Nach dem Aufwärmen des Haspeldornes 2 auf die gewünschte Temperatur wird das Heizrohr 5 wieder in seine Ruhestellung nach Fig. 2 zurückgezogen und das aufzuwärmende Band auf den Haspeldorn 2 aufgewickelt, der nunmehr seine Wärme an den Bandwickel abgibt.After heating the
Claims (1)
- A coiler-furnace unit comprising a coiler (1) having a mandrel (2), which is disposed in a heat protection hood (4) and is heatable by means of a heating tube (5), which is axially displaceable over the coiler mandrel (2), characterized in that the heating tube (5) consists of a radiator tube (7), which is enclosed by a shell (8) and has at least one hot gas passage between the radiator tube (7) and the shell, the heat protection hood (4) is double-walled to form at least one flow passage (13), and the exit opening (15) of the hot gas passage (9) of the heating tube (5) is connected to an inlet opening (16) of the flow passage (13) of the heat protection hood (4).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT0197184A AT379617B (en) | 1984-06-18 | 1984-06-18 | REEL STOVE |
| AT1971/84 | 1984-06-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0166712A1 EP0166712A1 (en) | 1986-01-02 |
| EP0166712B1 true EP0166712B1 (en) | 1987-08-19 |
Family
ID=3525018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP85890102A Expired EP0166712B1 (en) | 1984-06-18 | 1985-05-02 | Coiler furnace |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US4611988A (en) |
| EP (1) | EP0166712B1 (en) |
| JP (1) | JPS6112833A (en) |
| AT (1) | AT379617B (en) |
| CA (1) | CA1226134A (en) |
| DD (1) | DD232932A5 (en) |
| DE (1) | DE3560488D1 (en) |
| SU (1) | SU1360590A3 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5498156A (en) * | 1994-09-02 | 1996-03-12 | Ipsco Enterprises Inc. | Dual-purpose guide and drum cleaner for Steckel mill coiler furnace |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE922717C (en) * | 1948-10-02 | 1955-01-24 | Westfalenhuette Dortmund Ag | Hot strip coiler |
| FI811410L (en) * | 1981-05-07 | 1982-11-08 | Asko Upo Oy | FOERFARANDE FOER UPPVAERMNING AV AENDAN I ETT PLASTROER OCH CIRKULATIONSLUFTUGN FOER UTFOERANDE AV FOERFARANDET. EC, G; 820 614: 17; L |
| AT373290B (en) * | 1982-03-23 | 1984-01-10 | Voest Alpine Ag | REEL STOVE |
-
1984
- 1984-06-18 AT AT0197184A patent/AT379617B/en not_active IP Right Cessation
-
1985
- 1985-05-02 EP EP85890102A patent/EP0166712B1/en not_active Expired
- 1985-05-02 DE DE8585890102T patent/DE3560488D1/en not_active Expired
- 1985-05-30 US US06/739,437 patent/US4611988A/en not_active Expired - Fee Related
- 1985-06-03 CA CA000483006A patent/CA1226134A/en not_active Expired
- 1985-06-05 SU SU853903102A patent/SU1360590A3/en active
- 1985-06-17 DD DD85277447A patent/DD232932A5/en not_active IP Right Cessation
- 1985-06-17 JP JP60130086A patent/JPS6112833A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| EP0166712A1 (en) | 1986-01-02 |
| ATA197184A (en) | 1985-06-15 |
| SU1360590A3 (en) | 1987-12-15 |
| JPS6112833A (en) | 1986-01-21 |
| US4611988A (en) | 1986-09-16 |
| CA1226134A (en) | 1987-09-01 |
| AT379617B (en) | 1986-02-10 |
| DE3560488D1 (en) | 1987-09-24 |
| DD232932A5 (en) | 1986-02-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE2933606C2 (en) | Hot water heater | |
| DE2745595B2 (en) | Vertical conveyor belt furnace | |
| DE3618192A1 (en) | REEL STOVE | |
| DE2423507A1 (en) | COMBUSTION MACHINE WITH AT LEAST ONE EXHAUST DUCT | |
| DE2722065A1 (en) | OVEN FOR ISOSTATIC HOT PRESSING | |
| EP0166712B1 (en) | Coiler furnace | |
| DE1919188A1 (en) | Hair curlers | |
| DE19747257A1 (en) | Device for encapsulating blanks made of high-temperature metallic alloys | |
| DE10119402A1 (en) | Heat cell of a heater | |
| DE714022C (en) | Short-circuit runner with cast winding | |
| DE2208137A1 (en) | Vertical tube furnace for high working pressure | |
| EP0168375B1 (en) | Coiler furnace | |
| DE1802729C3 (en) | Device for heating liquids or gases | |
| DE922587C (en) | Method and device for heat treatment of wound iron and metal strips | |
| DE551282C (en) | Rohrfoermiger Heizkoerper for heating wires u. like | |
| DE19609128A1 (en) | Electrical sauna stove for sauna cabin with electrical resistance heating | |
| DE2910409C2 (en) | Collective heating boiler | |
| DE2435659C3 (en) | Gas-heated radiant heating tube | |
| DE645704C (en) | Heating stove with heat storage | |
| AT142378B (en) | Mainly used for the emission of light electrical discharge tube. | |
| DE1402788A1 (en) | Extrusion press for pressing easily oxidizing metal blocks | |
| AT257766B (en) | Inductor for electrical induction heating | |
| DE1579642C3 (en) | ||
| DE1283982B (en) | Induction furnace for electrical induction heating | |
| DE8407711U1 (en) | HEATING DEVICE |
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): BE CH DE FR GB IT LI LU NL SE |
|
| 17P | Request for examination filed |
Effective date: 19851114 |
|
| 17Q | First examination report despatched |
Effective date: 19861210 |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| ITF | It: translation for a ep patent filed |
Owner name: STUDIO INGG. FISCHETTI & WEBER |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): BE CH DE FR GB IT LI LU NL SE |
|
| REF | Corresponds to: |
Ref document number: 3560488 Country of ref document: DE Date of ref document: 19870924 |
|
| 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: 19880531 |
|
| 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: 19900417 Year of fee payment: 6 Ref country code: CH Payment date: 19900417 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: 19900419 Year of fee payment: 6 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 19900427 Year of fee payment: 6 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 19900430 Year of fee payment: 6 Ref country code: LU Payment date: 19900430 Year of fee payment: 6 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: BE Payment date: 19900515 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: NL Payment date: 19900531 Year of fee payment: 6 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Effective date: 19910502 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Effective date: 19910503 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Effective date: 19910531 Ref country code: CH Effective date: 19910531 Ref country code: BE Effective date: 19910531 |
|
| BERE | Be: lapsed |
Owner name: VOEST-ALPINE A.G. Effective date: 19910531 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Effective date: 19911201 |
|
| GBPC | Gb: european patent ceased through non-payment of renewal fee | ||
| NLV4 | Nl: lapsed or anulled due to non-payment of the annual fee | ||
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Effective date: 19920131 |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Effective date: 19920303 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
| EUG | Se: european patent has lapsed |
Ref document number: 85890102.8 Effective date: 19911209 |