EP0167993A2 - Heat exchanger constructed of plates - Google Patents
Heat exchanger constructed of plates Download PDFInfo
- Publication number
- EP0167993A2 EP0167993A2 EP85108313A EP85108313A EP0167993A2 EP 0167993 A2 EP0167993 A2 EP 0167993A2 EP 85108313 A EP85108313 A EP 85108313A EP 85108313 A EP85108313 A EP 85108313A EP 0167993 A2 EP0167993 A2 EP 0167993A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- plates
- heat exchanger
- edge section
- double edge
- double
- 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
Links
- 238000007789 sealing Methods 0.000 claims abstract description 7
- 125000006850 spacer group Chemical group 0.000 claims abstract 2
- 238000005452 bending Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
Images
Classifications
-
- 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
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
- F28D9/0037—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the conduits for the other heat-exchange medium also being formed by paired plates touching each other
-
- 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
Definitions
- the present invention relates to a plate-type heat exchanger according to the preamble of claim 1.
- the plates of such a heat exchanger consist of a sheet material that is as thin as possible and has good thermal conductivity.
- the small thickness of the sheet metal material is important not only for reasons of cost and weight, but above all for achieving the lowest possible heat transfer resistance through the plates and thus good heat exchange between the media flowing through the heat exchanger.
- the mechanical stability of the plates is therefore very low. It is therefore important that the fold connection between the edge sections of adjacent plates on the one hand achieves the best possible stiffening, but on the other hand the inflow cross sections between the sheets are not adversely affected by the fold connection.
- the invention has for its object to develop a heat exchanger of the type mentioned, in which the sealing connection between adjacent plates is formed such that the mechanical stability of the plate arrangement and the dimensional accuracy and uniformity of the inflow openings are as large as possible.
- Figure 1 shows a small section of a heat exchanger according to the invention.
- the plates are actually much longer than shown in the figure, which is indicated by the break lines a. Only a few plates 1a to 1f of the actually very large (for example 200 and more) number of plates are shown in the vertical direction.
- the plates 1 consist of thin sheets of good heat-conducting material.
- the plates are stacked one above the other and preferably have a square cut.
- Projections 2 are embossed into the plates, some of them according to one and some. protrude from the plate on the other side and which are arranged alternately from plate to plate such that the plates are held at a mutual distance by abutting projections, the height of which is equal to twice the height of the projections 2.
- the projections are arranged in such a way that continuous parallel flow paths are formed between two adjacent plates, alternating between two Plates are directed in a first flow direction S1 and in a second flow direction S2 perpendicular thereto (perpendicular to the plane of the drawing).
- the medium involved in the heat exchange flows through the heat exchanger in the direction of S1 and the other in the direction of S2.
- the adjacent plates on two opposite sides 3a and 3b or 3c and 3d are connected to one another in a sealing manner, which is done by the fold connection 5.
- FIG 2 shows the detail T in Figure 1 enlarged.
- the edge sections 4 of the two plates 1b and 1c are bent towards one another until they lie close together and form a double edge section 6.
- This double edge section is combined to form a sealing fold connection, the bent parts 11 to 14 of the double edge section being present on both sides of the inner part 7 of the double edge section at least over part of the width B of the fold connection in two layers 11, 12 and 13, 14, respectively .
- Seen in the direction of arrow g, the double-edge section 6 is first led with its part 7 to the outside of the heat exchanger and then bent by 180 degrees, so that part 11 abuts the inner part 7.
- the double edge section is then bent outwards by 180 degrees (part 12) and is bent over the first bending point 15 to the other side (parts 13 and 14) of the inner part 7 of the double edge section, the end part 14 of the double edge section being turned inwards by 180 degrees is.
- the parts 11 to 14 are shown with lateral distances from each other. This only serves to make the structure easier to see. It is understood that the parts are really close to each other.
- the seam connection is characterized by high tightness and high rigidity, which contributes significantly to the mechanical stability of the entire heat exchanger.
- the fold connection is symmetrical to the two adjacent flow channels and ensures mechanically stable inflow and outflow edges for the flow channels.
- Another possibility of forming the fold connection consists in that the end part 14 is turned outwards by 180 degrees, so that the part 13 lies directly against the inner part 7.
- the plates of the heat exchanger can be designed such that the top plate 1a and the correspondingly designed (not shown) bottom plate, each with a side support plate 20, form a flow channel 21 halfway up the flow channels between the other plates. In this case, two edge sections that can be connected to form a fold are not available for the lateral connection.
- the edge section 4 of the two end plates mentioned is therefore bent over the lateral edge of the support plate and clamped between the support plate 20 and an angle rail 22a, 22b, 22c or 22d, which is part of the support structure of the heat exchanger.
- this support structure consists of a support plate 20 at the upper and lower end of the heat exchanger, four angle rails 22a to 22b, which are fastened in a frame-like manner to the support plate 20, for example by rivet connections 23, and four angle rails 24a to 24d, which the four outer edges of the heat exchanger are arranged perpendicular to the plate levels.
- corner angle rails are connected on the one hand to the angle rails 22, for example by rivets 25, Screwing or gluing, and on the other hand they are connected to the corner regions of the plates by means of a sealing compound, which at the same time prevents a connection between the flow channels intended for the two flow media via the corner regions of the plates.
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)
Abstract
Description
Die vorliegende Erfindung betrifft einen aus Platten aufgebauten Wärmetauscher gemäß dem Oberbegriff des Anspruches 1.The present invention relates to a plate-type heat exchanger according to the preamble of claim 1.
Die Platten eines solchen Wärmetauschers bestehen aus einem möglichst dünnen und gut wärmeleitendem Blechmaterial. Die geringe Dicke des Blechmaterials ist nicht nur aus Kosten-und Gewichtsgründen wichtig, sondern vor allem zur Erzielung eines möglichst niedrigen Wärmedurchgangswiderstandes durch die Platten und damit eines guten Wärmeaustausches zwischen den den Wärmetauscher durchströmenden Medien. Die mechanische Stabilität der Platten ist daher sehr gering. Deshalb ist es wichtig, daß durch die Falzverbindung zwischen den Randabschnitten benachbarter Platten einerseits eine möglichst gute Versteifung erzielt wird, andererseits jedoch die Anströmquerschnitte zwischen den Blechen durch die Falzverbindung nicht nachteilig beeinflußt werden.The plates of such a heat exchanger consist of a sheet material that is as thin as possible and has good thermal conductivity. The small thickness of the sheet metal material is important not only for reasons of cost and weight, but above all for achieving the lowest possible heat transfer resistance through the plates and thus good heat exchange between the media flowing through the heat exchanger. The mechanical stability of the plates is therefore very low. It is therefore important that the fold connection between the edge sections of adjacent plates on the one hand achieves the best possible stiffening, but on the other hand the inflow cross sections between the sheets are not adversely affected by the fold connection.
Der Erfindung liegt die Aufgabe zugrunde, einen Wärmetauscher der eingangs genannten Art zu entwickeln, bei dem die abdichtende Verbindung zwischen benachbarten Platten derart ansgebildet ist,daß die mechanische Stabilität der Plattenanordnung sowie die Maßhaltigkeit und Gleichmäßigkeit der Anströmöffnungen möglichst groß sind.The invention has for its object to develop a heat exchanger of the type mentioned, in which the sealing connection between adjacent plates is formed such that the mechanical stability of the plate arrangement and the dimensional accuracy and uniformity of the inflow openings are as large as possible.
Zur Lösung dieser Aufgabe wird ein Wärmetauscher gemäß dem Oberbegriff des Anspruches 1 vorgeschlagen, der erfindungsgemäß die im kennzeichnenden Teil des Anspruches 1 genannten Merkmale hat.To solve this problem, a heat exchanger according to the preamble of claim 1 is proposed, the invention according to the features mentioned in the characterizing part of claim 1.
Vorteilhafte Ausgestaltungen der Erfindung sind in den weiteren Ansprüchen genannt.Advantageous embodiments of the invention are mentioned in the further claims.
Anhand der in den Figuren gezeigten Ausführungsbeispiele soll die Erfindung näher erläutert werden. Es zeigen
- Figur 1 einen Ausschnitt aus einem Wärmetauscher gemäß der Erfindung im Schnitt längs der Linie A-A in
Figur 3. Figur 2 in vergrößerter Darstellung den in Figur 1 mit T bezeichneten Teil mit der Falzverbindung.Figur 3 den Wärmetauscher gemäß Figur 1 in Draufsicht.
- 1 shows a section of a heat exchanger according to the invention in section along the line AA in Figure 3.
- 2 shows an enlarged view of the part designated T in FIG. 1 with the fold connection.
- Figure 3 shows the heat exchanger according to Figure 1 in plan view.
Figur 1 zeigt einen kleinen Ausschnitt aus einem Wärmetauscher gemäß der Erfindung. In horizontaler Richtung in Figur 1 sind die Platten in Wirklichkeit wesentlich länger als in der Figur dargestellt, was durch die Bruchlinien a angedeutet ist. In senkrechter Richtung sind nur wenige Platten 1a bis 1f der in Wirklichkeit sehr großen (beispielsweise 200 und mehr) Anzahl von Platten dargestellt. Die Platten 1 bestehen aus dünnen Blechen aus gut wärmeleitendem Material. Die Platten sind übereinander gestapelt und haben vorzugsweise einen quadratischen Zuschnitt. In die Platten sind Vorsprünge 2 eingeprägt, die zum Teil nach der einen und zum Teil. nach der anderen Seite aus der Platte hervorstehen und die abwechselnd von Platte zu Platte derart angeordnet sind, daß die Platten durch aneinanderstoßende Vorsprünge auf einen gegenseitigen Abstand gehalten werden, dessen Höhe gleich der doppelten Höhe der Vorsprünge 2 ist. Zugleich sind die Vorsprünge so angeordnet, daß sich zwischen je zwei benachbarten Platten durchgehende parallele Strömungswege ausbilden, die abwechselnd zwischen je zwei Platten in einer ersten Durchströmrichtung S1 und in einer dazu senkrechten zweiten Durchströmrichtung S2 (senkrecht zur Zeichenebene) gerichtet sind. Das eine am Wärmeaustausch beteiligte Medium durchströmt den Wärmetauscher in Richtung S1 und das andere in Richtung S2.Figure 1 shows a small section of a heat exchanger according to the invention. In the horizontal direction in Figure 1, the plates are actually much longer than shown in the figure, which is indicated by the break lines a. Only a
Zur seitlichen Abdichtung der Strömungskanäle müssen die benachbarten Platten an je zwei gegenüberliegenden Seiten 3a und 3b Bzw. 3c und 3d (Figur 3) dichtend miteinander verbunden werden, was durch die Falzverbindung 5 geschieht.For the lateral sealing of the flow channels, the adjacent plates on two
Die erfindungsgemäße Ausbildung dieser Falzverbindung ist am besten aus Figur 2 ersichtlich, die den Ausschnitt T in Figur 1 vergrößert dargestellt. Die Randabschnitte 4 der beiden Platten 1b und 1c sind aufeinander zugebogen bis sie dicht aneinanderliegen und einen Doppelrandabschnitt 6 bilden. Dieser Doppelrandabschnitt ist zu einer abdichtenden Falzverbindung zusammengefaßt, wobei auf beiden Seiten des inneren Teils 7 des Doppelrandabschnittes die abgebogenen Teile 11 bis 14 des Doppelrandabschnittes wenigstens über einen Teil der Breite B der Falzverbindung in je zwei Lagen 11, 12 bzw. 13, 14 vorhanden sind. In Pfeilrichtung g gesehen ist der Doppelrandabschnitt 6 mit seinem Teil 7 zunächst zur Außenseite des Wärmetauschers geführt und dann um 180 Grad abgebogen, so daß der Teil 11 am inneren Teil 7 anliegt. Der Doppelrandabschnitt ist dann um 180 Grad nach außen abgebogen (Teil 12) und über die erste Biegestelle 15 hinweg zur anderen Seite (Teil 13 und 14) des inneren Teils 7 des Doppelrandabschnitt abgebogen, wobei das Endteil 14 des Doppelrandabschnittes nach innen um 180 Grad eingeschlagen ist. In Figur 2 sind die Teile 11 bis 14 mit seitlichen Abständen voneinander dargestellt. Dies dient nur der besseren Erkennbarkeit des Aufbaus. Es versteht sich, daß die Teile in Wirklichkeit dicht aneinander liegen.The inventive design of this fold connection is best seen in Figure 2, which shows the detail T in Figure 1 enlarged. The edge sections 4 of the two
Auf diese Weise wird eine Falzverbindung geschaffen, deren Dicke D gleich der zehnfachen Materialstärke der Platten ist. Die Falzverbindung zeichnet sich durch hohe Dichtigkeit und hohe Steifigkeit aus, was erheblich zur mechanischen Stabilität des gesamten Wärmetauschers beiträgt. Die Falzverbindung liegt symmetrisch zu den beiden ihr benachbarten Strömungskanäle und sorgt für mechanisch stabile Ein- und Ausströmkanten für die Strömungskanäle.In this way, a fold connection is created, the thickness D of which is ten times the material thickness of the plates. The seam connection is characterized by high tightness and high rigidity, which contributes significantly to the mechanical stability of the entire heat exchanger. The fold connection is symmetrical to the two adjacent flow channels and ensures mechanically stable inflow and outflow edges for the flow channels.
Eine andere Möglichkeit der Ausbildung der Falzverbindung besteht darin, daß das Endteil 14 um 180 Grad nach außen eingeschlagen ist, so daß das Teil 13 unmittelbar am inneren Teil 7 anliegt.Another possibility of forming the fold connection consists in that the
Die Platten des Wärmetauschers können so ausgebildet sein, daß die oberste Platte 1a und die entsprechend ausgebildete (nicht dargestellte) unterste Platte mit je einer seitlichen Stützplatte 20 einen Strömungskanal 21 von halber Höhe der Strömungskanäle zwischen den übrigen Platten bilden. In diesem Falle stehen für die seitliche Verbindung nicht zwei zu einem Falz verbindbare Randabschnitte zur Verfügung.The plates of the heat exchanger can be designed such that the
Gemäß der Erfindung wird daher der Randabschnitt 4 der genannten beiden Endplatten über die seitliche Kante der Stützplatte hinweggebogen und zwischen der Stützplatte 20 und einer Winkelschiene 22a, 22b, 22c, bzw. 22d festgeklemmt, die Teil der Stützkonstruktion des Wärmetauschers ist. Diese Stützkonstruktion bestheht im gezeigten Ausführungsbeispiel aus je einer Stützplatte 20 am oberen und unteren Ende des Wärmetauschers, je vier Winkelschienen 22a bis 22b, die rahmenförmig an der Stützplatte 20 befestigt sind, zum Beispiel durch Nietverbindungen 23, und vier Winkelschienen 24a bis 24d, die an den vier Außenkanten des Wärmetauschers senkrecht zu den Plattenebenen angeordnet sind. Diese Eckwinkelschienen sind einerseits mit den Winkelschienen 22 verbunden, zum Beispiel durch Nieten 25, Schrauben oder Kleben, und andererseits sind sie mittels einer Dichtungsmasse mit den Eckbereichen der Platten verbunden, wodurch zugleich eine Verbindung zwischen den für die beiden Strömungsmedien bestimmten Strömungskanäle über die Eckbereiche der Platten verhindert wird.According to the invention, the edge section 4 of the two end plates mentioned is therefore bent over the lateral edge of the support plate and clamped between the
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT85108313T ATE34835T1 (en) | 1984-07-12 | 1985-07-05 | PLATE CONSTRUCTED HEAT EXCHANGER. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE8420930 | 1984-07-12 | ||
DE8420930U | 1984-07-12 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0167993A2 true EP0167993A2 (en) | 1986-01-15 |
EP0167993A3 EP0167993A3 (en) | 1986-10-08 |
EP0167993B1 EP0167993B1 (en) | 1988-06-01 |
Family
ID=6768808
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP85108313A Expired EP0167993B1 (en) | 1984-07-12 | 1985-07-05 | Heat exchanger constructed of plates |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0167993B1 (en) |
AT (1) | ATE34835T1 (en) |
DE (1) | DE3563117D1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0368477A1 (en) * | 1988-10-13 | 1990-05-16 | Advance Design & Manufacture Limited | Air conditioning unit |
EP0449783A2 (en) * | 1990-03-30 | 1991-10-02 | Polybloc Ag | Heat exchanger, particularly for ventilation plant |
GB2359617B (en) * | 1999-12-16 | 2002-06-26 | Smc Corp | Heat exchanger for temperature control |
WO2010102625A3 (en) * | 2009-03-09 | 2011-04-14 | Dantherm Air Handling A/S | A method of manufacturng a heat exchanger |
KR101143518B1 (en) * | 2008-03-20 | 2012-05-09 | 지티이 코포레이션 | Allocation method of physical hybrid retransmission indication channels |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR29315E (en) * | 1924-06-13 | 1925-07-24 | C Ad Hubert | Cellular construction made up of removable elements, in the form of plates, applicable to heat exchangers |
US2354865A (en) * | 1941-01-17 | 1944-08-01 | Gen Motors Corp | Refrigerating apparatus |
FR2449261A1 (en) * | 1979-02-15 | 1980-09-12 | Hoval Interliz Ag | TYPE HEAT EXCHANGER COMPRISING A PLATE EXCHANGER BLOCK |
-
1985
- 1985-07-05 AT AT85108313T patent/ATE34835T1/en not_active IP Right Cessation
- 1985-07-05 DE DE8585108313T patent/DE3563117D1/en not_active Expired
- 1985-07-05 EP EP85108313A patent/EP0167993B1/en not_active Expired
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR29315E (en) * | 1924-06-13 | 1925-07-24 | C Ad Hubert | Cellular construction made up of removable elements, in the form of plates, applicable to heat exchangers |
US2354865A (en) * | 1941-01-17 | 1944-08-01 | Gen Motors Corp | Refrigerating apparatus |
FR2449261A1 (en) * | 1979-02-15 | 1980-09-12 | Hoval Interliz Ag | TYPE HEAT EXCHANGER COMPRISING A PLATE EXCHANGER BLOCK |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0368477A1 (en) * | 1988-10-13 | 1990-05-16 | Advance Design & Manufacture Limited | Air conditioning unit |
US5033537A (en) * | 1988-10-13 | 1991-07-23 | Advance Design & Manufacture Limited | Heat exchanger with flow passages which deform in operation towards equalization |
EP0449783A2 (en) * | 1990-03-30 | 1991-10-02 | Polybloc Ag | Heat exchanger, particularly for ventilation plant |
EP0449783A3 (en) * | 1990-03-30 | 1992-06-03 | Polybloc Ag | Heat exchanger, particularly for ventilation plant |
GB2359617B (en) * | 1999-12-16 | 2002-06-26 | Smc Corp | Heat exchanger for temperature control |
US6615590B1 (en) | 1999-12-16 | 2003-09-09 | Smc Corporation | Heat exchanger for temperature control |
KR101143518B1 (en) * | 2008-03-20 | 2012-05-09 | 지티이 코포레이션 | Allocation method of physical hybrid retransmission indication channels |
WO2010102625A3 (en) * | 2009-03-09 | 2011-04-14 | Dantherm Air Handling A/S | A method of manufacturng a heat exchanger |
Also Published As
Publication number | Publication date |
---|---|
ATE34835T1 (en) | 1988-06-15 |
EP0167993A3 (en) | 1986-10-08 |
EP0167993B1 (en) | 1988-06-01 |
DE3563117D1 (en) | 1988-07-07 |
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