EP0028951B1 - Wärmeaustauscher mit einem Bündel von Röhren, welche in Rohrplatten münden, die mit Vorratsbehältern mechanish zusammengebaut sind - Google Patents

Wärmeaustauscher mit einem Bündel von Röhren, welche in Rohrplatten münden, die mit Vorratsbehältern mechanish zusammengebaut sind Download PDF

Info

Publication number
EP0028951B1
EP0028951B1 EP80401487A EP80401487A EP0028951B1 EP 0028951 B1 EP0028951 B1 EP 0028951B1 EP 80401487 A EP80401487 A EP 80401487A EP 80401487 A EP80401487 A EP 80401487A EP 0028951 B1 EP0028951 B1 EP 0028951B1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
exchanger according
tube
bar
small bar
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
Application number
EP80401487A
Other languages
English (en)
French (fr)
Other versions
EP0028951A2 (de
EP0028951A3 (en
Inventor
Jean-Pierre Moranne
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.)
Chausson Usines SA
Original Assignee
Chausson Usines 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 Chausson Usines SA filed Critical Chausson Usines SA
Publication of EP0028951A2 publication Critical patent/EP0028951A2/de
Publication of EP0028951A3 publication Critical patent/EP0028951A3/fr
Application granted granted Critical
Publication of EP0028951B1 publication Critical patent/EP0028951B1/de
Expired 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
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0219—Arrangements for sealing end plates into casing or header box; Header box sub-elements
    • F28F9/0224—Header boxes formed by sealing end plates into covers
    • F28F9/0226—Header boxes formed by sealing end plates into covers with resilient gaskets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
    • F28D1/0535—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight the conduits having a non-circular cross-section
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/12—Fastening; Joining by methods involving deformation of the elements
    • F28F2275/122—Fastening; Joining by methods involving deformation of the elements by crimping, caulking or clinching
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S165/00—Heat exchange
    • Y10S165/454—Heat exchange having side-by-side conduits structure or conduit section
    • Y10S165/471—Plural parallel conduits joined by manifold
    • Y10S165/473—Plural parallel conduits joined by manifold with clamping member at joint between header plate and header tank
    • Y10S165/474—Plural parallel conduits joined by manifold with clamping member at joint between header plate and header tank with compressible seal at joint

Definitions

  • the present invention relates to heat exchangers comprising a bundle of tubes engaged in collecting plates which are designed to be covered by water boxes assembled in a removable manner, that is to say fixed on the periphery of each collecting plate with interposition of a deformable joint.
  • British patent 699,032 has described embodiments in which the peripheral edge of the water box is crimped onto a flexible joint by forming a hollow rib which is intended to increase the stiffness of the edge. .serti-This apparently satisfactory arrangement requires the use of complex tools to form the hollow rib inside which is placed the flexible seal.
  • the heat exchanger comprising a bundle of tubes opening into collector plates delimiting, at their periphery, a groove externally bordered by a rising edge, a seal being arranged in the bottom of the groove for be clamped by the underside of a rim formed by a water box having a thin wall and maintained either by crimping parts extending the rising edge of the collector plate, or by an attached pliers is characterized in that a bar is interposed between the top of the rim of this water box and the crimping parts of the collector plate or the attached pliers.
  • 1 denotes the circulation tubes of a heat exchanger, in particular of a cooling exchanger of the kind used in motor vehicles. These tubes are connected together in the usual way by dissipators 2 constituted, for example, by corrugated strips or by fins.
  • collector plates 3 which have, at their periphery, a groove 4 and an external rising edge 5.
  • the collector plates 3 which the exchanger comprises are made of a metal or an alloy compatible with the metal or alloy of the tubes 1 and of the dissipators 2 and all of these parts are joined together by brazing or by another means.
  • a thin-walled water box 6 is used to cover the collectors 3 which is advantageously made of metal, in particular by stamping.
  • the water box comprises in known manner pipes, bases and other conduits usual in the art.
  • the water box has at its base a peripheral rim 7 of width corresponding to that of the groove 4 of the collector plate 3 and this rim is extended, in particular to stiffen it, by a rising edge 8.
  • the bar 10 it is advantageous, as illustrated in the drawing, for the bar 10 to form a bead 11 covered to the top of the rising edge 8 of the box.
  • a next operation consists in putting in place a clamp 12, well known in itself, which fits the underside of the part of the collecting plate forming the groove 4 and which extends along the rising edge 5 and including tabs 13 are crimped onto the top of the bar 10.
  • the strip extends over the four sides of the collector plate.
  • the top 10a of the bar is preferably located above the edge of the collector so that the fold 13a of the legs does not generate a line of fatigue.
  • collector plates are most often of uniform width, it is advantageous, as illustrated in FIG. 3, to produce by molding bars 10 having the shape of a rectangular frame whose dimensions correspond to those of the largest collecting plate that can be used and these bars in the shape of rectangular frame are then cut to length, as illustrated for example by the section lines 14 shown in FIG. 3. It is obviously possible, if desired; to form bars in the shape of a rectangular frame for each type of exchanger, likewise, it would not go beyond the scope of the invention to manufacture half-frames whose sides would then be cut to length or by using sections of bars which would be arranged in the four sides of the groove of each collector plate.
  • Fig. 2 illustrates: a slight variant according to which the clamp 12: is. not used. In this case, it is the rising edge 5 of the collecting plate which is provided with tabs 13 crimped on the top of the bar 10. In this embodiment, the edge 10b at least of the bar is rounded so that the fold of the legs 13 be performed in good conditions.
  • Fig-4 illustrates an embodiment, simplified. according to which the water box. 6 does not have: a rising edge 8 as in the previous embodiments, but is only surrounded by a flat edge 7a.
  • a strip 10 is placed as above on the rim, the width of which corresponds to that of the rim 7a and the lugs 13 of the collector plate 3 are crimped as illustrated. in fig. 2 on the top of the bar.
  • FIGs. 5 and 6 illustrate a development of the invention which is implemented in the embodiment described above with reference to FIG. 2 but which can obviously apply to other embodiments.
  • notches 15 with a curved, for example concave, bottom are formed in the bars and the tabs 13 are folded back in the notches and deformed corresponding to the bottom, which considerably increases the stiffness of the tabs.
  • the bar which is made of hard material supports the forces due to crimping and distributes these forces over.
  • the water boxes can be made of synthetic material while having a thin wall which is normally deformable under the influence of the force usually applied by the tabs 13 if the bars 10 were not used. It is thus possible to manufacture water boxes at a much lower cost price than that of molded plastic boxes, the thickness of which must prevent any deformation of the part applied to the seal 9 by the tabs 13.

Landscapes

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

Claims (10)

1. Wärmeaustauscher mit einem Bündel von Röhren (2), welche in Sammelplatten (3) münden, die an ihrem Umfang eine Nut (4) begrenzen, die aussen durch einen ansteigenden Rand (5) eingefasst ist, wobei eine Dichtung (9) auf dem Boden der Nut so angeordnet ist, dass sie von unten von einem nach aussen gebogenen Rand (7) verschlossen wird, weicher einen entweder von Quetschteilen, die den ansteigenden Rand der Sammelplatte verlängern, oder von einem angesetzten Klemmstück (12) gehaltenen Wasserbehälter (6) bildet, der eine dünne Wandung hat, dadurch gekennzeichnet, dass zwischen dem oberen Teil des Randes dieses Wasserbehalters (6) und den Quetschteilen der Sammelplatte (3) oder dem angesetzten Klemmstück (12) ein Steg (10) eingesetzt ist.
2. Wärmetauscher nach Anspruch 1, dadurch gekennzeichnete dass. der Steg (10) aus hartem Material gefertigt ist.
3. Wärmetauscher nach einem der Ansprüche oder2, dadurch gekennzeichnet, dass sich der Steg (10) ganz um die Sammelplatte (3) und den diese überdeckenden Wasserbehälter (6) herum erstreckt
4. Wärmetauscher nach einem der Ansprüche.1 bis 3, dadurch gekennzeichnet, dass der Steg (10) aus einem Stück besteht, weiches die Form eines rechteckigen Rahmens, eines Halbrahmens oder von dünnen Stäben aufweist, deren Abmessungen im Querschnitt denen der Nut entsprechen, die von der Sammelplatte begrenzt wird.
5. Wärmetauscher nach Anspruch 4, dadurch gekennzeichnet, dass die Stange (10) in Form eines rechteckigen Rahmens oder Halbrahmens so hergestellt ist, dass sie den Abmessungen der grössten Sammelplatten (3) entspricht, welche bei der Herstellung verwendet werden, und dadurch, dass sie an ihren Seiten so abgeschnitten ist, dass sie an die Sammeiplatten (3) kleinerer Abmessungen angepasst wird.
6. Wärmetauscher nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass der Wasserbehälter (6) jenseits seines Randes einen ansteigenden Abschnitt (8) aufweist, und dadurch, dass die Stange (10) eine Dicke aufweist, die grösser als die Höhe des ansteigenden Abschnitts ist, wobei sie einen Flansch (11) bildet, welcher das Ende dieses ansteigenden Abschnitts überdeckt.
7. Wärmetauscher nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass zumindest die Kante (10b) der Stange (10), welche den Quetschteilen zugekehrt ist, abgerundet ist.
8. Wärmetauscher nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die Quetschteile von Laschen (13) gebildet werden, die über die Oberseite der Stangen (10) zurückgeschlagen sind.
9. Wärmetauscher nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass die Stangen (10) nahe den Laschen Einschnitte (15) mit rundem Boden aufweisen, auf denen die Laschen (13) niedergebogen sind.
10. Wärmetauscher nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass die Krümmung des Bodens der Einschnitte (15) konkav ist.
EP80401487A 1979-11-12 1980-10-20 Wärmeaustauscher mit einem Bündel von Röhren, welche in Rohrplatten münden, die mit Vorratsbehältern mechanish zusammengebaut sind Expired EP0028951B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7927789 1979-11-12
FR7927789A FR2469686A1 (fr) 1979-11-12 1979-11-12 Echangeur de chaleur comportant un faisceau de tubes debouchant dans des plaques collectrices reliees mecaniquement a des boites a eau

Publications (3)

Publication Number Publication Date
EP0028951A2 EP0028951A2 (de) 1981-05-20
EP0028951A3 EP0028951A3 (en) 1981-05-27
EP0028951B1 true EP0028951B1 (de) 1982-12-15

Family

ID=9231547

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80401487A Expired EP0028951B1 (de) 1979-11-12 1980-10-20 Wärmeaustauscher mit einem Bündel von Röhren, welche in Rohrplatten münden, die mit Vorratsbehältern mechanish zusammengebaut sind

Country Status (7)

Country Link
US (1) US4324290A (de)
EP (1) EP0028951B1 (de)
JP (1) JPS5682393A (de)
BR (1) BR8007268A (de)
DE (1) DE3061362D1 (de)
ES (1) ES254362Y (de)
FR (1) FR2469686A1 (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58154388U (ja) * 1982-04-09 1983-10-15 株式会社デンソー 熱交換器
FR2550328B1 (fr) * 1983-08-04 1989-01-13 Chausson Usines Sa Dispositif de liaison entre une plaque collectrice et une boite a eau d'un echangeur de chaleur et procede pour sa mise en oeuvre
NL8303966A (nl) * 1983-11-17 1985-06-17 Nrf Holding Radiateur.
JPS60154782U (ja) * 1984-03-22 1985-10-15 カルソニックカンセイ株式会社 熱交換器
US4546823A (en) * 1985-02-11 1985-10-15 Mccord Heat Transfer Corporation Solderless radiator
US4651815A (en) * 1985-06-19 1987-03-24 Modine Manufacturing Company Header plate-tank connection
US4899815A (en) * 1989-02-23 1990-02-13 Modine Manufacturing Co. Tank retaining strip for heat exchangers
US5257662A (en) * 1992-03-27 1993-11-02 The Allen Group Inc. Heat exchanger assembly
US5311933A (en) * 1993-01-21 1994-05-17 Lee Lanny R Connection of tank to core for heat exchanger
US20020157816A1 (en) * 2001-04-25 2002-10-31 Curtindale William D. Metal heat exchanger tank and method of forming same
DE20316688U1 (de) * 2003-10-29 2004-03-11 Behr Gmbh & Co. Kg Wärmetauscher
DE102005002417A1 (de) * 2005-01-18 2006-07-27 Behr Gmbh & Co. Kg Wärmeübertrager, insbesondere Ladeluftkühler oder Kühlmittelkühler für Kraftfahrzeuge
FR2992715B1 (fr) * 2012-06-27 2018-09-14 Valeo Systemes Thermiques Echangeur de chaleur, notamment refroidisseur d'air de suralimentation de moteur de vehicule automobile
US10527364B2 (en) * 2017-03-03 2020-01-07 Enterex America LLC Heat exchanger manifold with header groove reinforcement member
FR3081216B1 (fr) * 2018-05-18 2020-05-29 Valeo Systemes Thermiques Echangeur de chaleur comprenant un joint principal d’etancheite et un joint secondaire d’etancheite
US11073345B2 (en) * 2018-10-31 2021-07-27 Hanon Systems Heat exchanger header with stiffening element

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB699032A (en) * 1951-02-05 1953-10-28 Coventry Radiator & Presswork Heat exchangers, for example, radiators for internal-combustion engines
FR2270471A1 (en) * 1974-05-10 1975-12-05 Chausson Usines Sa Seal between water reservoir and heat exchanger - has rubber ring deformed between reservoir and heat exchanger flanges

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3581814A (en) * 1969-05-09 1971-06-01 Richard A Jackson Radiator compression strap
FR2194935B1 (de) * 1972-08-02 1976-01-23 Chausson Usines Fr
FR2247692A1 (en) * 1973-10-15 1975-05-09 Chausson Usines Sa Non-welded motor vehicle radiator - base of water box wall deforms sealing strip in collector trough groove
DE2353442B2 (de) * 1973-10-25 1980-04-24 Sueddeutsche Kuehlerfabrik Julius Fr. Behr Gmbh & Co Kg, 7000 Stuttgart Rechteckige Dichtung aus elastomerem Material für einen Heizungs-Wärmetauscher oder Kühler
DE2353405A1 (de) * 1973-10-25 1975-04-30 Sueddeutsche Kuehler Behr Deckel fuer waermetauscher
FR2254771B1 (de) * 1973-12-13 1976-11-19 Chausson Usines Sa
US4023618A (en) * 1975-08-18 1977-05-17 Union Carbide Corporation Heat exchanger headering arrangement
DE2703528C3 (de) * 1977-01-28 1982-03-11 Kühlerfabrik Längerer & Reich, 7024 Filderstadt Wasserkühler, insbesondere für eine Brennkraftmaschine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB699032A (en) * 1951-02-05 1953-10-28 Coventry Radiator & Presswork Heat exchangers, for example, radiators for internal-combustion engines
FR2270471A1 (en) * 1974-05-10 1975-12-05 Chausson Usines Sa Seal between water reservoir and heat exchanger - has rubber ring deformed between reservoir and heat exchanger flanges

Also Published As

Publication number Publication date
EP0028951A2 (de) 1981-05-20
ES254362Y (es) 1981-11-01
EP0028951A3 (en) 1981-05-27
JPS5682393A (en) 1981-07-06
DE3061362D1 (en) 1983-01-20
FR2469686B1 (de) 1984-04-27
FR2469686A1 (fr) 1981-05-22
BR8007268A (pt) 1981-05-19
ES254362U (es) 1981-04-16
US4324290A (en) 1982-04-13

Similar Documents

Publication Publication Date Title
EP0028951B1 (de) Wärmeaustauscher mit einem Bündel von Röhren, welche in Rohrplatten münden, die mit Vorratsbehältern mechanish zusammengebaut sind
EP0779490A1 (de) Endplatte für einen Wärmetauscher,Verfahren zu dessen Herstellung,und solche Endplatten enthaltene Wärmetauscher
EP1034410B1 (de) Raumsparender wärmetauscher, insbesondere für kraftfahrzeug
EP1120620B1 (de) Wärmeaustauschmodul, insbesondere für Kraftfahrzeuge
EP0505244B1 (de) Wärmetauscher mit Rohrbündel, insbesondere für Kraftfahrzeug
FR2475709A1 (fr) Tube pour echangeur de chaleur et echangeur a plaque collectrice et a assemblage mecanique comportant ce tube
FR2673249A1 (fr) Agrafe de fixation.
FR2745079A1 (fr) Echangeur de chaleur a boite a fluide brasee, en particulier pour vehicule automobile
EP0176407B1 (de) Sammelkasten für Wärmetauscher und diesen enthaltender Wärmetauscher
EP3198212A1 (de) Kopfplatte für einen wärmetauscher, sammelkasten und wärmetauscher
FR2702042A1 (fr) Echangeur de chaleur, en particulier pour véhicules automobiles.
EP0567410A1 (de) Wärmetauscher mit Röhren mit länglichem Querschnitt, insbesondere für Kraftfahrzeuge
FR2614408A1 (fr) Dispositif d'assemblage entre une plaque collectrice et une boite a eau d'un echangeur de chaleur
FR2789758A1 (fr) Procede d'assemblage d'un echangeur de chaleur, en particulier de vehicule automobile, et echangeur ainsi obtenu
FR2770632A1 (fr) Echangeur de chaleur a collecteur renforce, notamment pour vehicule automobile
FR2494828A1 (fr) Echangeur de chaleur assemble mecaniquement du type a tubes et ailettes
FR2742857A1 (fr) Plaque collectrice pour echangeur de chaleur
FR2660425A1 (fr) Echangeur de chaleur a tubes plats.
EP2455697B1 (de) Sammelkasten und entsprechender Wärmetauscher
WO2010133491A1 (fr) Boîte collectrice pour échangeur de chaleur, en particulier à flux multiples
EP1957927B1 (de) Verstärkter sammler für den sammelbehälter eines wärmetauschers und einen solchen sammler umfassender sammelbehälter
FR2775766A1 (fr) Echangeur de chaleur a ailettes protegees, notamment pour vehicule automobile
EP0683327B1 (de) Befestigungselement für Kabel, Rohre oder dergleichen
FR2730046A1 (fr) Dispositif de raccordement electrique d'un motoventilateur monte sur un corps a ailettes d'un echangeur de chaleur
FR2496188A3 (fr) Clip de fixation d'un element, notamment en matiere plastique, a une structure de support

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

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

17P Request for examination filed

Effective date: 19801023

AK Designated contracting states

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

AK Designated contracting states

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

ITCL It: translation for ep claims filed

Representative=s name: STUDIO KOHLER FONTANA

DET De: translation of patent claims
ITF It: translation for a ep patent filed
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

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

REF Corresponds to:

Ref document number: 3061362

Country of ref document: DE

Date of ref document: 19830120

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

Ref country code: DE

Payment date: 19841123

Year of fee payment: 5

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

Ref country code: SE

Payment date: 19841231

Year of fee payment: 5

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

Ref country code: NL

Payment date: 19871031

Year of fee payment: 8

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

Ref country code: BE

Payment date: 19890119

Year of fee payment: 9

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

Ref country code: GB

Effective date: 19891020

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

Ref country code: SE

Effective date: 19891021

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

Ref country code: BE

Effective date: 19891031

BERE Be: lapsed

Owner name: S.A. DES USINES CHAUSSON

Effective date: 19891031

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

Ref country code: NL

Effective date: 19900501

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
GBPC Gb: european patent ceased through non-payment of renewal fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19900703

EUG Se: european patent has lapsed

Ref document number: 80401487.6

Effective date: 19900705

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