EP0571881A1 - Heat exchanger module - Google Patents

Heat exchanger module Download PDF

Info

Publication number
EP0571881A1
EP0571881A1 EP93108105A EP93108105A EP0571881A1 EP 0571881 A1 EP0571881 A1 EP 0571881A1 EP 93108105 A EP93108105 A EP 93108105A EP 93108105 A EP93108105 A EP 93108105A EP 0571881 A1 EP0571881 A1 EP 0571881A1
Authority
EP
European Patent Office
Prior art keywords
cards
foil
heat exchanger
card
exchanger module
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
EP93108105A
Other languages
German (de)
French (fr)
Other versions
EP0571881B1 (en
Inventor
Jürgen Böttcher
Rudolf Dr. Ganz
Jürgen Dr. Heinrich
Otto Heinz
Rüdiger Herrmann
Heinrich Schelter
Matthias Simmerl
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.)
Ceramtec GmbH
Original Assignee
Ceramtec 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 Ceramtec GmbH filed Critical Ceramtec GmbH
Publication of EP0571881A1 publication Critical patent/EP0571881A1/en
Application granted granted Critical
Publication of EP0571881B1 publication Critical patent/EP0571881B1/en
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
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/08—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
    • F28F3/086—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning having one or more openings therein forming tubular heat-exchange passages
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/04—Constructions of heat-exchange apparatus characterised by the selection of particular materials of ceramic; of concrete; of natural stone

Definitions

  • the invention relates to a heat exchanger module which is produced by stacking foil cards provided with openings and then connecting the individual cards of the card stack.
  • Heat exchanger modules of the type mentioned are known from DE-A-36 43 750.
  • the ceramic film cards from which the known heat exchanger modules are made have first recesses which form continuous channels in stacked cards.
  • second recesses are arranged such that two of the recesses of adjacent cards partially overlap, with channels being formed which extend perpendicularly to and surround the continuous channels.
  • the large flow resistance in the channels, which are formed by the second recesses, is disadvantageous.
  • the invention seeks to remedy this.
  • each film card or group of film cards of the stack is arranged rotated by an angle ⁇ between 0 and 30 ° about a common axis relative to the previous film card or group of film cards , wherein the openings form spiral channels.
  • the foil cards can be circular and have circular segments concentric with their contour, in particular two circular segments arranged symmetrically to one another as openings.
  • the module can be constructed from a card pattern without flipping the card. Because of their good adaptability, such heat exchanger modules are also suitable for use with widely differing volume flows for the use of liquid / liquid, liquid / gaseous and gaseous / gaseous heat exchange as well as for condensation and evaporation processes even at high pressures and the use of highly corrosive media.
  • the heat exchanger module is used in all types of motor vehicles, ships, aircraft and rail vehicles.
  • Figure 1 shows a heat exchanger module in a spatial representation, partially cut away.
  • FIG. 2 shows the stacking of the green film cards forming the heat exchanger module, partially exploded and cut open in a spatial representation.
  • the heat exchanger module 1 without connection hoods is made in particular from green ceramic foil cards 2.
  • the film cards 2 have circular segment-like openings 3, which are arranged symmetrically to one another and concentrically to the circular contour of the film card 2.
  • the foil cards 2 are placed one above the other and at an angle ⁇ , for example 20 ° above the previous card, with spiral (spiral staircase) channels 4 (double helix) being formed.
  • the individual cards 2 can also be combined into groups of two or more cards, which in turn are then stacked as described for the individual cards.
  • the staircase structure of the channels 4 shows the individual cards 2 or the groups of cards from which the heat exchanger module 1 is composed.
  • the foil cards can also have any contour within certain limits, as can their openings.
  • the contour of the card 2 can be provided with recesses 5 which form continuous channels 6 when the cards are stacked on the outer surface of the heat exchanger module. Furthermore, in addition to the segment-like openings 3, the card 2 can also have recesses 7 which are likewise offset at an angle ⁇ and thereby form continuous channels 8 in the module 1. By varying the dimensions of the openings and / or the angle of rotation ⁇ , the heat exchanger module can be adapted very flexibly to different tasks. It can also be advantageous to set the axis of rotation 9 off-center.
  • the individual foil cards 2 are connected by ceramic firing to form a monolithic heat exchanger module or by soldering, welding, gluing or mechanical connection, for example by tie rods with the interposition of seals between the individual cards to form a heat exchanger module.
  • the cards 2 with the openings 3 can be produced by casting, sawing, milling, turning, deep drawing, embossing, lasering, punching or liquid jet cutting.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

In the heat exchanger module, which is produced by stacking foil cards, provided with cutouts, and subsequently joining the individual cards of the card stack, each foil card (2) or group of foil cards of the stack is turned about a common axis by an angle alpha of between 0 and 30 DEG with respect to the preceding foil card (2) or group of foil cards. The cutouts (3) form spiral channels (4). <IMAGE>

Description

Die Erfindung betrifft einen Wärmetauschermodul, der durch Stapeln von, mit Durchbrüchen versehenen Folienkarten und anschließendes Verbinden der einzelnen Karten des Kartenstapels hergestellt ist.The invention relates to a heat exchanger module which is produced by stacking foil cards provided with openings and then connecting the individual cards of the card stack.

Unter Folienkarten sollen nachfolgend Karten aus grüner Keramik, aus Metall wie z.B. Legierungen aus Kupfer, aus Stahl, aus Aluminium oder aus Kunststoff und unter Verbinden Laminieren mit anschließendem Brennen, Löten, Schweißen, Kleben oder mechanisches Verbinden unter Zwischenlegen von Dichtungen verstanden werden.Cards made of green ceramic, metal such as e.g. Alloys made of copper, steel, aluminum or plastic and by joining laminating with subsequent firing, soldering, welding, gluing or mechanical joining are understood by interposing seals.

Wärmetauschermodule der genannten Art sind aus der DE-A-36 43 750 bekannt. Die keramischen Folienkarten, aus denen die bekannten Wärmetauschermodule hergestellt sind, weisen erste Ausnehmungen auf, die bei gestapelten Karten durchgehende Kanäle bilden. Um die ersten Ausnehmungen herum sind zweite Ausnehmungen so angeordnet, daß sich zwei der Ausnehmungen benachbarter Karten teilweise überlappen, wobei sich Kanäle ausbilden, die sich senkrecht zu den durchgehenden Kanälen erstrecken und diese umgeben. Nachteilig ist der große Strömungswiderstand in den Kanälen, die durch die zweiten Ausnehmungen gebildet werden. Hier will die Erfindung Abhilfe schaffen.Heat exchanger modules of the type mentioned are known from DE-A-36 43 750. The ceramic film cards from which the known heat exchanger modules are made have first recesses which form continuous channels in stacked cards. Around the first recesses, second recesses are arranged such that two of the recesses of adjacent cards partially overlap, with channels being formed which extend perpendicularly to and surround the continuous channels. The large flow resistance in the channels, which are formed by the second recesses, is disadvantageous. The invention seeks to remedy this.

Die Aufgabe wird durch einen Wärmetauschermodul der eingangs beschriebenen Art gelöst, der dadurch gekennzeichnet ist, daß jede Folienkarte oder Gruppe von Folienkarten des Stapels gegenüber der vorhergehenden Folienkarte oder Gruppe von Folienkarten um eine gemeinsame Achse um einen Winkel α zwischen 0 und 30° verdreht angeordnet ist, wobei die Durchbrüche spiralförmige Kanäle ausbilden.The object is achieved by a heat exchanger module of the type described at the outset, which is characterized in that each film card or group of film cards of the stack is arranged rotated by an angle α between 0 and 30 ° about a common axis relative to the previous film card or group of film cards , wherein the openings form spiral channels.

Die Folienkarten können kreisförmig ausgebildet sein und konzentrisch zu ihrer Kontur Kreissegmente, insbesondere zwei symmetrisch zueinander angeordnete Kreissegmente als Durchbrüche aufweisen.The foil cards can be circular and have circular segments concentric with their contour, in particular two circular segments arranged symmetrically to one another as openings.

Die durch die Erfindung erreichten Vorteile sind im wesentlichen in der Verminderung des Strömungswiderstandes zu sehen. Darüberhinaus kann der Modul aus einem Kartenmuster ohne Wenden der Karte aufgebaut werden. Derartige Wärmetauschermodule eignen sich aufgrund ihrer guten Anpassbarkeit auch an stark unterschiedliche Volumenströme für den Einsatz flüssig/flüssig, flüssig/gasförmigen und gasförmigen/gasförmigen Wärmetausch sowie für Kondensations- und Verdampfungsvorgänge selbst bei hohen Drücken und der Verwendung stark korrosiver Medien. Der Wärmetauschermodul findet Anwendung in Kraftfahrzeugen aller Art, Schiffen, Flugzeugen und Schienenfahrzeugen.The advantages achieved by the invention can be seen essentially in the reduction of the flow resistance. In addition, the module can be constructed from a card pattern without flipping the card. Because of their good adaptability, such heat exchanger modules are also suitable for use with widely differing volume flows for the use of liquid / liquid, liquid / gaseous and gaseous / gaseous heat exchange as well as for condensation and evaporation processes even at high pressures and the use of highly corrosive media. The heat exchanger module is used in all types of motor vehicles, ships, aircraft and rail vehicles.

Im folgenden wird die Erfindung anhand von lediglich einen Ausführungsweg darstellenden Zeichnungen näher erläutert.The invention is explained in more detail below with the aid of drawings which illustrate only one embodiment.

Die Figur 1 zeigt einen Wärmetauschermodul in räumlicher Darstellung, teilweise aufgeschnitten.Figure 1 shows a heat exchanger module in a spatial representation, partially cut away.

Die Figur 2 zeigt das Stapeln der den Wärmetauschermodul bildenden grünen Folienkarten in räumlicher Darstellung teilweise explodiert und aufgeschnitten.FIG. 2 shows the stacking of the green film cards forming the heat exchanger module, partially exploded and cut open in a spatial representation.

Der Wärmetauschermodul 1 ohne Anschlußhauben ist insbesondere aus grünen keramischen Folienkarten 2 hergestellt. Die Folienkarten 2 weisen kreissegmentartige Durchbrüche 3 auf, die symmetrisch zueinander und konzentrisch zur kreisförmigen Kontur der Folienkarte 2 angeordnet sind. Die Folienkarten 2 werden einzeln und um einen Winkel α, z.B. 20° gegenüber der vorhergehenden Karte übereinander gelegt, wobei sich spiralförmige (wendeltreppenartige) Kanäle 4 (Doppelhelix) bilden. Die einzelnen Karten 2 können auch zu Gruppen aus zwei und mehr Karten zusammengefaßt werden, die dann ihrerseits wie bei den einzelnen Karten beschrieben gestapelt werden. An der Treppenstruktur der Kanäle 4 erkennt man die einzelnen Karten 2 bzw. die Gruppen aus Karten, aus denen sich der Wärmetauschermodul 1 zusammensetzt. Die Folienkarten können auch in gewissen Grenzen eine beliebige Kontur besitzen, ebenso ihre Durchbrüche. Die Kontur der Karte 2 kann mit Ausnehmungen 5 versehen sein, die beim Stapeln der Karten auf der äußeren Oberfläche des Wärmetauschermoduls durchgehende Rinnen 6 bilden. Ferner kann die Karte 2 neben den segmentartigen Durchbrüchen 3 noch Ausnehmungen 7 aufweisen, die ebenfalls im Winkel α versetzt sind und dadurch im Modul 1 durchgehende Kanäle 8 bilden. Durch Variationen der Abmessungen der Durchbrüche und/oder des Drehwinkels α kann der Wärmetauschermodul sehr flexibel an unterschiedliche Aufgabenstellungen angepaßt werden. Es kann auch vorteilhaft sein, die Drehachse 9 außermittig festzulegen. Die einzelnen Folienkarten 2 werden durch keramischen Brand zu einem monolithischen Wärmetauschermodul oder durch Löten, Schweißen, Kleben oder mechanisches Verbinden, z.B. durch Zuganker unter Zwischenlegen von Dichtungen zwischen die einzelnen Karten zu einem Wärmetauschermodul verbunden. Die Karten 2 mit den Durchbrüchen 3 können durch Gießen, Sägen, Fräsen, Drehen, Tiefziehen, Prägen, Lasern, Stanzen oder Flüssigkeitsstrahlschneiden hergestellt werden.The heat exchanger module 1 without connection hoods is made in particular from green ceramic foil cards 2. The film cards 2 have circular segment-like openings 3, which are arranged symmetrically to one another and concentrically to the circular contour of the film card 2. The foil cards 2 are placed one above the other and at an angle α, for example 20 ° above the previous card, with spiral (spiral staircase) channels 4 (double helix) being formed. The individual cards 2 can also be combined into groups of two or more cards, which in turn are then stacked as described for the individual cards. At the The staircase structure of the channels 4 shows the individual cards 2 or the groups of cards from which the heat exchanger module 1 is composed. The foil cards can also have any contour within certain limits, as can their openings. The contour of the card 2 can be provided with recesses 5 which form continuous channels 6 when the cards are stacked on the outer surface of the heat exchanger module. Furthermore, in addition to the segment-like openings 3, the card 2 can also have recesses 7 which are likewise offset at an angle α and thereby form continuous channels 8 in the module 1. By varying the dimensions of the openings and / or the angle of rotation α, the heat exchanger module can be adapted very flexibly to different tasks. It can also be advantageous to set the axis of rotation 9 off-center. The individual foil cards 2 are connected by ceramic firing to form a monolithic heat exchanger module or by soldering, welding, gluing or mechanical connection, for example by tie rods with the interposition of seals between the individual cards to form a heat exchanger module. The cards 2 with the openings 3 can be produced by casting, sawing, milling, turning, deep drawing, embossing, lasering, punching or liquid jet cutting.

Claims (3)

Wärmetauschermodul, hergestellt durch Stapeln von mit Durchbrüchen versehenen Folienkarten und anschließendes Verbinden der einzelnen Karten des Kartenstapels, dadurch gekennzeichnet, daß jede Folienkarte (2) oder Gruppe von Folienkarten des Stapels gegenüber der vorhergehenden Folienkarte (2) oder Gruppe von Folienkarten um eine gemeinsame Achse um einen Winkel α zwischen 0 und 30° gedreht angeordnet ist, wobei die Durchbrüche (3) spiralförmige Kanäle (4) ausbilden.Heat exchanger module, produced by stacking breakthrough foil cards and then connecting the individual cards of the card stack, characterized in that each foil card (2) or group of foil cards of the stack compared to the previous foil card (2) or group of foil cards around a common axis an angle α between 0 and 30 ° is arranged rotated, the openings (3) forming spiral channels (4). Wärmetauschermodul nach Anspruch 1, dadurch gekennzeichnet, daß die Folienkarten (2) kreisförmig ausgebildet sind und konzentrisch zu ihrer Kontur Kreissegmente als Durchbrüche (3) aufweisen.Heat exchanger module according to claim 1, characterized in that the film cards (2) are circular and have circular segments as openings (3) concentric to their contour. Wärmetauschermodul nach Anspruch 2, dadurch gekennzeichnet, daß die kreisförmigen Folienkarten (2) zwei Kreissegmente als Durchbrüche (3) aufweisen, die symmetrisch zueinander und konzentrisch zur Kontur der Folienkarte angeordnet sind.Heat exchanger module according to claim 2, characterized in that the circular film cards (2) have two circular segments as openings (3) which are arranged symmetrically to one another and concentrically to the contour of the film card.
EP93108105A 1992-05-23 1993-05-18 Heat exchanger module Expired - Lifetime EP0571881B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4217193 1992-05-23
DE4217193 1992-05-23

Publications (2)

Publication Number Publication Date
EP0571881A1 true EP0571881A1 (en) 1993-12-01
EP0571881B1 EP0571881B1 (en) 1995-10-18

Family

ID=6459634

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93108105A Expired - Lifetime EP0571881B1 (en) 1992-05-23 1993-05-18 Heat exchanger module

Country Status (7)

Country Link
US (1) US5392848A (en)
EP (1) EP0571881B1 (en)
JP (1) JPH0674671A (en)
AT (1) ATE129338T1 (en)
CA (1) CA2096815A1 (en)
DE (1) DE59300772D1 (en)
RU (1) RU2108525C1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997042458A1 (en) * 1996-05-06 1997-11-13 East Consult A/S Flue gas heat exchanger and fin therefor
WO2001035043A1 (en) * 1999-11-10 2001-05-17 Chart Heat Exchangers Limited Heat exchanger

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU7636596A (en) * 1995-12-01 1997-06-27 Imi Marston Limited Heat exchanger
US20020162652A1 (en) * 1999-10-18 2002-11-07 Andersen Jens Otto Ravn Flue gas heat exchanger and fin therefor
DE102004027747A1 (en) * 2004-06-07 2005-12-22 Hartmann, Eva Heat transmission device, has segment sheet plates firmly connected together and bounded as even channel sections, which are placed against each other around thickness of sheets
US7600939B2 (en) * 2006-09-28 2009-10-13 World Wide Stationery Mfg. Co., Ltd. Ring binder mechanism with sliding hinge plate
JP5690460B2 (en) * 2009-05-22 2015-03-25 アメリカ合衆国 Compact radial counter-flow recuperator
CA2742462A1 (en) 2010-06-09 2011-12-09 World Wide Stationery Manufacturing Co., Ltd. Ring binder mechanism having unitary structure
DE102010063141A1 (en) * 2010-12-15 2012-06-21 Mahle International Gmbh heat exchangers
JP5944104B2 (en) * 2011-03-15 2016-07-05 株式会社東芝 Heat exchanger
CN105984250A (en) 2015-02-05 2016-10-05 国际文具制造厂有限公司 Annular binder with interlocking annular member
CN116989600B (en) * 2023-09-15 2023-12-15 河南心连心智能装备科技有限公司 Low-temperature methanol winding type heat exchanger

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2152729A1 (en) * 1971-09-08 1973-04-27 Ostbo Karl
EP0077656A1 (en) * 1981-10-16 1983-04-27 Avco Corporation Plate-type heat exchanger
DE3643750A1 (en) * 1986-12-20 1988-06-30 Hoechst Ag HEAT EXCHANGER MODULE FROM BURNED CERAMIC MATERIAL

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4102632A (en) * 1976-11-22 1978-07-25 Phillip Hastings Modular heat recuperator
FR2455721A1 (en) * 1979-05-02 1980-11-28 Inst Francais Du Petrole COMPACT HEAT EXCHANGER
US5099915A (en) * 1990-04-17 1992-03-31 Sundstrand Corporation Helical jet impingement evaporator

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2152729A1 (en) * 1971-09-08 1973-04-27 Ostbo Karl
EP0077656A1 (en) * 1981-10-16 1983-04-27 Avco Corporation Plate-type heat exchanger
DE3643750A1 (en) * 1986-12-20 1988-06-30 Hoechst Ag HEAT EXCHANGER MODULE FROM BURNED CERAMIC MATERIAL

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997042458A1 (en) * 1996-05-06 1997-11-13 East Consult A/S Flue gas heat exchanger and fin therefor
WO2001035043A1 (en) * 1999-11-10 2001-05-17 Chart Heat Exchangers Limited Heat exchanger
US7258844B1 (en) 1999-11-10 2007-08-21 Chart Industries, Inc. Heat exchanger

Also Published As

Publication number Publication date
RU2108525C1 (en) 1998-04-10
DE59300772D1 (en) 1995-11-23
EP0571881B1 (en) 1995-10-18
US5392848A (en) 1995-02-28
JPH0674671A (en) 1994-03-18
ATE129338T1 (en) 1995-11-15
CA2096815A1 (en) 1993-11-24

Similar Documents

Publication Publication Date Title
EP0571881B1 (en) Heat exchanger module
DE60004812T2 (en) MULTILAYER TRANSFORMER ARRANGEMENT AND METHOD
DE3738343C2 (en)
EP0918148B1 (en) Exhaust manifold flange
EP0274694B1 (en) Heat exchange module made of burned ceramic material
EP0749171A1 (en) High-temperature fuel cell
EP1305561B1 (en) Heat transfer device
EP0866500A2 (en) Cooling apparatus or heat sink for electrical devices or circuits and electrical circuit with such a heat sink
DE102012106244A1 (en) Metal-ceramic substrate
DE102013204744A1 (en) Layer heat transfer device and method for producing a layer heat transfer device
EP0978874A2 (en) Cooling apparatus
WO1995000459A1 (en) Process for producing a gastight soldered joint and use of the process in the production of components with a vacuum-tight casing
CH643349A5 (en) HEAT EXCHANGER MADE OF CERAMIC MATERIAL AND METHOD FOR THE PRODUCTION THEREOF.
EP1555079B1 (en) Process for manufacturing cooling elements made of plate piling, with soldering material on the inner surfaces of passages or openings of the plates
WO2005096672A1 (en) Electric fluid heater
EP1585589A2 (en) Membrane module for the separation of hydrogen and method for the production thereof
DE10010387A1 (en) Composite membrane used for purifying hydrogen for fuel cells comprises a support layer made from a first material and a permeation layer made from a second material arranged on the support layer
DE102007008341B4 (en) Method for soldering components of a heat exchanger in layered construction as well as layer heat exchanger produced by this method
EP0274695A1 (en) Heat exchange module made of burned ceramic material
DE29918271U1 (en) radiator
DE10041338A1 (en) Manufacture of large-volume ceramic multilayer component by forming holes in green body, removing and sintering
DE10020087B4 (en) The fuel cell system
DE2635471C2 (en) Power capacitor with low self-inductance
DE102022124354A1 (en) Heat exchanger consisting of two types of plates
DE102022206145A1 (en) Device for heating exhaust gas that can flow in an exhaust pipe

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 CH DE FR GB IT LI NL

17P Request for examination filed

Effective date: 19940203

17Q First examination report despatched

Effective date: 19940802

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

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

REF Corresponds to:

Ref document number: 129338

Country of ref document: AT

Date of ref document: 19951115

Kind code of ref document: T

REF Corresponds to:

Ref document number: 59300772

Country of ref document: DE

Date of ref document: 19951123

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

Effective date: 19960108

ET Fr: translation filed
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: CH

Ref legal event code: PFA

Free format text: HOECHST CERAMTEC AKTIENGESELLSCHAFT TRANSFER- CERAMTEC AG INNOVATIVE CERAMIC ENGINEERING

Ref country code: CH

Ref legal event code: NV

Representative=s name: ISLER & PEDRAZZINI AG

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

Ref country code: GB

Payment date: 19990413

Year of fee payment: 7

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

Ref country code: DE

Payment date: 19990417

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: 19990419

Year of fee payment: 7

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

Ref country code: CH

Payment date: 19990421

Year of fee payment: 7

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

Ref country code: AT

Payment date: 19990422

Year of fee payment: 7

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

Ref country code: NL

Payment date: 19990427

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: 20000518

Ref country code: AT

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

Effective date: 20000518

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

Ref country code: LI

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

Effective date: 20000531

Ref country code: CH

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

Effective date: 20000531

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 NON-PAYMENT OF DUE FEES

Effective date: 20001201

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

Effective date: 20000518

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: FR

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

Effective date: 20010131

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

Effective date: 20001201

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: 20010301

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: 20050518