EP0361147A1 - Four continu pour le traitement thermique d'articles, en particulier de tubes céramiques - Google Patents

Four continu pour le traitement thermique d'articles, en particulier de tubes céramiques Download PDF

Info

Publication number
EP0361147A1
EP0361147A1 EP89116412A EP89116412A EP0361147A1 EP 0361147 A1 EP0361147 A1 EP 0361147A1 EP 89116412 A EP89116412 A EP 89116412A EP 89116412 A EP89116412 A EP 89116412A EP 0361147 A1 EP0361147 A1 EP 0361147A1
Authority
EP
European Patent Office
Prior art keywords
furnace
continuous furnace
heat treatment
objects
continuous
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP89116412A
Other languages
German (de)
English (en)
Other versions
EP0361147B1 (fr
Inventor
Luigi Andrea Dr. Ing. Poggi
G.M.C. Verheyden, Jr.
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.)
Apt Anlagen fur Pyrotechnik GmbH
A P T ANLAGEN fur PYROTECHNIK GmbH
Original Assignee
Apt Anlagen fur Pyrotechnik GmbH
A P T ANLAGEN fur PYROTECHNIK GmbH
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 Apt Anlagen fur Pyrotechnik GmbH, A P T ANLAGEN fur PYROTECHNIK GmbH filed Critical Apt Anlagen fur Pyrotechnik GmbH
Publication of EP0361147A1 publication Critical patent/EP0361147A1/fr
Application granted granted Critical
Publication of EP0361147B1 publication Critical patent/EP0361147B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/02—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity of multiple-track type; of multiple-chamber type; Combinations of furnaces
    • F27B9/021—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity of multiple-track type; of multiple-chamber type; Combinations of furnaces having two or more parallel tracks
    • F27B9/022—With two tracks moving in opposite directions
    • F27B9/023—With two tracks moving in opposite directions with a U turn at one end
    • F27B9/024—With two tracks moving in opposite directions with a U turn at one end with superimposed tracks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/02—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity of multiple-track type; of multiple-chamber type; Combinations of furnaces
    • F27B9/028—Multi-chamber type furnaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
    • F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
    • F27B9/24—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace being carried by a conveyor
    • F27B9/2407—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace being carried by a conveyor the conveyor being constituted by rollers (roller hearth furnace)
    • F27B9/2415—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace being carried by a conveyor the conveyor being constituted by rollers (roller hearth furnace) the charge rotating about an axis transversal to the axis of advancement of the charge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
    • F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
    • F27B9/26—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace on or in trucks, sleds, or containers
    • F27B9/262—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace on or in trucks, sleds, or containers on or in trucks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
    • F27B9/32—Casings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
    • F27B9/38—Arrangements of devices for charging
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D7/00—Forming, maintaining, or circulating atmospheres in heating chambers
    • F27D7/04—Circulating atmospheres by mechanical means

Definitions

  • the invention relates to a continuous furnace for the heat treatment of objects, in particular ceramic tubes, with an oven space divided into several chambers and transport means with which the objects can be transported through the various chambers.
  • the invention has for its object to provide a continuous furnace of the type mentioned, in which the objects do not have to be transferred from one means of transport to another means of transport during the passage through the entire furnace.
  • the furnace consists of an upper part which comprises at least the furnace ceiling and is stationary in the direction of flow and a lower part which comprises at least the bottom and the partition walls between the chambers and which is movable in the direction of flow several arranged one behind the other Carriage exists, each carrying one of the partitions at its front end.
  • the items to be heat treated remain on the trolley throughout the passage through the furnace.
  • the inner parts, such as the support rollers, of each wagon must be designed for the highest heat treatment temperatures, this effort is small in relation to the effort required to transfer the objects from one means of transport to another means of transport is.
  • the handling of the objects is gentler because of the unnecessary implementation. This is particularly important for thin-walled ceramic pipes.
  • the upper part and the lower part each comprise part of the side walls.
  • This configuration is particularly advantageous because it facilitates the accommodation of burners and air nozzles on the one hand and on the other hand drives for support rollers of the objects to be treated.
  • the lower part is equipped with support rollers for cylindrical objects to be treated, in particular for ceramic pipes, the support rollers extending through the side walls and being coupled to drives arranged outside the furnace space on the trolleys.
  • the burners and air nozzles can be arranged in the side wall parts of the upper part.
  • the upper part can be raised.
  • the side walls could also be designed to be movable, in particular be raised together with the ceiling.
  • pinch seals can be provided between the parts coming into contact with one another, such as the wall parts and the ceiling and the end faces. Sealing using sand channels is possible, but the sealing is not optimal. When using sand channels, however, there is no need to lift the upper part in order to be able to move the trolleys.
  • a return path for the wagons extends in the direction of flow under or next to the furnace and that for the wagons a transfer device running between this return lane and the lane through the furnace space, eg a lifting platform is provided.
  • the continuous furnace has a frame 1 with an upper pair of rails 2 and a pair of rails 3 arranged underneath, which form 4 lanes for carriages. At the beginning and at the end of these pairs of rails 2, 3 there are lifts 7, 8 equipped with rails 5, 6 with which the carriages 4 can be moved from one pair of rails 2 to the other pair of rails 3.
  • Each carriage 4 carries a structure 10 on a chassis 9. All the carriages 4 arranged close together on the pair of rails 2 are constructed identically. The carriage 4 is gradually transported over the rails 2 by feed means, not shown. The last carriage 4 pushes the carriage 4 in front of it.
  • the actual continuous furnace is divided into an upper part, which comprises the furnace ceiling 11, 12, 13 and the upper part of the side walls 14, 15, and a lower part.
  • the lower part is formed by the superstructures 10 of the carriages 4 and consists in each carriage 4 of the floor 16, a partition 17 arranged at the end at the end and the lower parts of side walls 18, 19.
  • the upper part can be lifted off the lower part by lifting devices 20, 21, which are shown in FIG. 3 for the combustion chamber, so that the carriages 4 can be moved freely.
  • a plurality of parallel support roller sets 22, 23 are arranged in the lower part, each carrying a ceramic tube 24 to be treated.
  • the carriages 4 in FIG. 1 are equipped with more support rollers than the carriages 4 according to FIG. 2, so that smaller, but more pipes 24 can be accommodated by these carriages.
  • the support rollers 22, 23 are through the side walls 18, 19 guided on the outside and coupled to drives 25, which can consist of electric motors, gears and chains.
  • the motors can be supplied with power by pantographs which slide on stationary power rails.
  • Openings 26, 27 are distributed in the side walls 14, 15 of the upper part, in which burners and nozzles for ventilation can be arranged.
  • the furnace chamber is divided into several chambers one behind the other, namely in the direction of passage in two drying chambers T 1, T 2, a heating chamber W, a combustion chamber B and two cooling chambers K 1, K 2.
  • the chamber spaces of the heating chamber W, the combustion chamber B and the cooling chambers K1, K2 are connected via a pipe 28 to the drying chambers T1, T2, so that the hot exhaust air from the heating chamber W and the combustion chamber B and when cooling in the cooling chambers K1, K2 heated air passed into the drying chambers T1, T2 and can be used for drying the pipes.
  • T2 circulation fans 29 are installed in the ceiling.
  • Objects to be heat-treated, in particular ceramic pipes, can be heat-treated in the continuous furnace according to the invention if the transport is interrupted but the self-rotation is maintained according to a desired temperature curve. It is not necessary to move from one means of transport to another means of transport during the entire transport through the continuous furnace. Since only the support rollers for the objects to be heat-treated are arranged inside the furnace chamber, the other mechanical parts, such as the drive, outside the furnace chamber, the effort for highly heat-resistant parts is kept within limits.
EP89116412A 1988-09-27 1989-09-06 Four continu pour le traitement thermique d'articles, en particulier de tubes céramiques Expired - Lifetime EP0361147B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3832734 1988-09-27
DE3832734A DE3832734C1 (fr) 1988-09-27 1988-09-27

Publications (2)

Publication Number Publication Date
EP0361147A1 true EP0361147A1 (fr) 1990-04-04
EP0361147B1 EP0361147B1 (fr) 1994-08-17

Family

ID=6363786

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89116412A Expired - Lifetime EP0361147B1 (fr) 1988-09-27 1989-09-06 Four continu pour le traitement thermique d'articles, en particulier de tubes céramiques

Country Status (4)

Country Link
US (1) US5006063A (fr)
EP (1) EP0361147B1 (fr)
AT (1) ATE110160T1 (fr)
DE (2) DE3832734C1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0674146A1 (fr) * 1994-03-18 1995-09-27 Eichhorn Epl Ag Installation pour le séchage et/ou la cuisson de produits céramiques
NL1011465C2 (nl) * 1999-03-05 2000-09-14 Heattreat Advising Company N V Oveninrichting.
AT407441B (de) * 1993-03-11 2001-03-26 Eichhorn Epl Ag Vorrichtung zum trocknen und/oder brennen von keramischem gut, insbesondere lochziegeln

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA951223B (en) * 1994-02-16 1995-10-18 Silvestrini J A Apparatus for thermally conditioning cylindrical containers
DE19635991A1 (de) * 1996-09-05 1999-03-25 Brakemeier Karl Heinz Brennofen insbesondere für keramische Erzeugnisse
JP4697408B2 (ja) * 2005-06-02 2011-06-08 関東冶金工業株式会社 ろう付け炉
US7507087B2 (en) * 2005-12-07 2009-03-24 Ajax Tocco Manethermic Corporation Method and apparatus to provide continuous movement through a furnace
US7789660B2 (en) * 2005-12-07 2010-09-07 Ajax Tocco Magnethermic Corporation Furnace alignment system
BRPI0722205B1 (pt) * 2007-12-13 2021-03-02 Molecor Tecnologia, S.L. forno para aquecimento de tubos e procedimento para aquecimento
GB0808083D0 (en) * 2008-05-06 2008-06-11 Rolls Royce Plc An apparatus and method for heat treatment
GB201317194D0 (fr) * 2013-09-27 2013-11-13 Ebner Ind Ofenbau

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR404208A (fr) * 1909-06-19 1909-11-25 John L Harper Four électrique pour la cuisson des briques, de la poterie et autres usages
FR505035A (fr) * 1919-10-18 1920-07-21 Henri Breuille Système de four tunnel à mouffles pour la cuisson, à l'abri des flammes, de produits divers
US2742002A (en) * 1952-09-02 1956-04-17 George P Reintjes Sealing shoe for furnaces
DE1135160B (de) * 1959-10-12 1962-08-23 Accumulatoren Fabrik Ag Tunnelofen fuer die Sinterung von Kunststoffpulverschichten
DE1508506A1 (de) * 1965-11-09 1969-10-30 Ottowitz Heinrich Tunnelofen
DE1935921A1 (de) * 1969-07-15 1971-03-11 Ooms Ittner & Cie Kg Ofen zur thermischen Behandlung roehren- oder stabfoermigen Gutes aus keramischen oder diesen aehnlichen Massen
CA1236688A (fr) * 1985-10-16 1988-05-17 Arnold G. Meyers Four de traitement thermique, vieillissement ou relaxation des contraintes et tensions
FR2617582A1 (fr) * 1987-07-01 1989-01-06 Cavallera Claude Four de sechage et de cuisson de produits refractaires

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2899189A (en) * 1959-08-11 Apparatus for processing compressed fuel
GB177561A (en) * 1920-10-29 1922-03-29 Woodall Duckham & Jones 1920 L Improvements in tunnel kilns
FR1185972A (fr) * 1957-11-12 1959-08-11 Procedes Ferro Four continu de cuisson notamment pour produits céramiques
US3071356A (en) * 1960-08-08 1963-01-01 Lindberg Eng Co Heat treating furnace
SU367781A1 (ru) * 1971-05-11 1983-12-07 Государственный Научно-Исследовательский Институт Керамической Промышленности Туннельно-щелева печь
GB1473839A (en) * 1974-09-19 1977-05-18 Etchells Ltd D Furnaces
JPS6016492B2 (ja) * 1979-06-14 1985-04-25 株式会社クボタ 鋳鉄管の熱処理装置
US4403954A (en) * 1980-08-08 1983-09-13 Kubota, Ltd. Apparatus for heat-treating pipes
DE3132373A1 (de) * 1981-01-16 1982-07-29 Didier Engineering Gmbh, 4300 Essen Ofen zum erwaermen von brammen, knueppeln und rohlingen
US4505670A (en) * 1983-03-02 1985-03-19 Imdec S.R.L Apparatus for moving and thermally conditioning cylindrical containers
DE3464960D1 (en) * 1983-07-19 1987-08-27 Apt Anlagen Fuer Pyrotechnik Process and continuous oven for the thermal treatment of cylindrical objects, especially tubes, preferably made of ceramic material
US4718847A (en) * 1987-03-24 1988-01-12 Ian Manson Kiln system

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR404208A (fr) * 1909-06-19 1909-11-25 John L Harper Four électrique pour la cuisson des briques, de la poterie et autres usages
FR505035A (fr) * 1919-10-18 1920-07-21 Henri Breuille Système de four tunnel à mouffles pour la cuisson, à l'abri des flammes, de produits divers
US2742002A (en) * 1952-09-02 1956-04-17 George P Reintjes Sealing shoe for furnaces
DE1135160B (de) * 1959-10-12 1962-08-23 Accumulatoren Fabrik Ag Tunnelofen fuer die Sinterung von Kunststoffpulverschichten
DE1508506A1 (de) * 1965-11-09 1969-10-30 Ottowitz Heinrich Tunnelofen
DE1935921A1 (de) * 1969-07-15 1971-03-11 Ooms Ittner & Cie Kg Ofen zur thermischen Behandlung roehren- oder stabfoermigen Gutes aus keramischen oder diesen aehnlichen Massen
CA1236688A (fr) * 1985-10-16 1988-05-17 Arnold G. Meyers Four de traitement thermique, vieillissement ou relaxation des contraintes et tensions
FR2617582A1 (fr) * 1987-07-01 1989-01-06 Cavallera Claude Four de sechage et de cuisson de produits refractaires

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT407441B (de) * 1993-03-11 2001-03-26 Eichhorn Epl Ag Vorrichtung zum trocknen und/oder brennen von keramischem gut, insbesondere lochziegeln
EP0674146A1 (fr) * 1994-03-18 1995-09-27 Eichhorn Epl Ag Installation pour le séchage et/ou la cuisson de produits céramiques
NL1011465C2 (nl) * 1999-03-05 2000-09-14 Heattreat Advising Company N V Oveninrichting.

Also Published As

Publication number Publication date
EP0361147B1 (fr) 1994-08-17
US5006063A (en) 1991-04-09
DE3832734C1 (fr) 1990-03-29
DE58908210D1 (de) 1994-09-22
ATE110160T1 (de) 1994-09-15

Similar Documents

Publication Publication Date Title
DE2400296C2 (de) Vorrichtung zum Biegen und Vorspannen von Glasscheiben
DE3405244C1 (de) Industrieofen,insbesondere Mehrkammer-Vakuumofen zur Waermebehandlung von Chargen metallischer Werkstuecke
EP2568244B1 (fr) Procédé et appareil de cuisson d'ébauches en céramique et four
DE3832734C1 (fr)
DE102011011258A1 (de) Ofenanlage zur Wärmebehandlung
EP0270043A2 (fr) Procédé de traitement thermique, en particulier de produits céramiques plutôt plats, et four continu pour sa réalisation
DE2712279A1 (de) Einrichtung zur waermebehandlung von zu behandelndem gut, insbesondere aus aluminium- oder magnesiumlegierungen
EP0131955B1 (fr) Procédé et installation pour le traitement thermique d'objets cylindriques, en particulier de tubes, notamment fait de matériaux céramiques
DE818510C (de) Ofen zum Erwaermen von Metallgegenstaenden
AT509356B1 (de) Vorrichtung und verfahren zum wärmebehandeln von stahldrähten
DE2551811A1 (de) Verfahren und vorrichtung zur waermebehandlung von waren
DE2727232A1 (de) Vorrichtung und verfahren zur kontinuierlichen behandlung von metallwickeln u.dgl.
DE3545498C2 (fr)
AT390322B (de) Vorrichtung zum durchwaermen von stahlteilen
DE2346909A1 (de) Durchlaufofen
DE2512485A1 (de) Verfahren zum brennen von keramischen produkten in einem diskontinuierlichen ofen, sowie brennofen zur durchfuehrung des verfahrens
DE3208132C2 (de) Durchschubofen
DE482791C (de) Gegenlaeufiger Doppeltunnelofen, bei dem die Feuergase in der Brennzone aus dem Brennkanal abgezogen werden
DE2804529A1 (de) Tunnelofen
DE3842290C1 (en) Heating furnace for billets, ingots, slabs, rough strips and similar products to be heated
DE963609C (de) Balkenherd in Durchlaufoefen, insbesondere zum Gluehfrischen
DE3031660A1 (de) Mehrzweck-ofenanlage
AT388441B (de) Drehherdofen in ringbauart zur waermebehandlung von werkstuecken
AT160285B (de) Durchgangsofen zum ununterbrochenen Blankglühen.
DE1228643B (de) Verfahren und Ofenanlage zur Waermebehandlung von zylindrischen Koerpern aus Gusseisenwerkstoffen nach bestimmten Zeittemperaturkurven

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 CH DE ES FR GB GR IT LI LU NL SE

17P Request for examination filed

Effective date: 19900920

ITF It: translation for a ep patent filed

Owner name: SOCIETA' ITALIANA BREVETTI S.P.A.

17Q First examination report despatched

Effective date: 19920529

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE

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

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19940817

Ref country code: ES

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

Effective date: 19940817

REF Corresponds to:

Ref document number: 110160

Country of ref document: AT

Date of ref document: 19940915

Kind code of ref document: T

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

Ref country code: FR

Payment date: 19940818

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: 19940906

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

Ref country code: BE

Payment date: 19940909

Year of fee payment: 6

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

Effective date: 19940816

ITF It: translation for a ep patent filed

Owner name: SOCIETA' ITALIANA BREVETTI S.P.A.

REF Corresponds to:

Ref document number: 58908210

Country of ref document: DE

Date of ref document: 19940922

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: 19940930

Ref country code: LI

Effective date: 19940930

Ref country code: CH

Effective date: 19940930

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

Ref country code: NL

Payment date: 19940930

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: 19941031

Year of fee payment: 6

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

Ref country code: SE

Effective date: 19941117

Ref country code: GB

Effective date: 19941117

ET Fr: translation filed
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

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

Effective date: 19941117

26N No opposition filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19950930

BERE Be: lapsed

Owner name: ANLAGEN FUR PYROTECHNIK G.M.B.H. APT

Effective date: 19950930

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

Ref country code: NL

Effective date: 19960401

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

Ref country code: FR

Effective date: 19960531

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

Ref country code: DE

Effective date: 19960601

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

Effective date: 19960401

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

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: 20050906