EP0336066A2 - Meule de rectification en plongée - Google Patents
Meule de rectification en plongée Download PDFInfo
- Publication number
- EP0336066A2 EP0336066A2 EP89101782A EP89101782A EP0336066A2 EP 0336066 A2 EP0336066 A2 EP 0336066A2 EP 89101782 A EP89101782 A EP 89101782A EP 89101782 A EP89101782 A EP 89101782A EP 0336066 A2 EP0336066 A2 EP 0336066A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- grinding
- grinding wheel
- diamonds
- diamond grains
- axis
- 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
- 239000010432 diamond Substances 0.000 claims abstract description 52
- 229910003460 diamond Inorganic materials 0.000 claims abstract description 33
- 239000011248 coating agent Substances 0.000 claims description 19
- 238000000576 coating method Methods 0.000 claims description 19
- 230000002093 peripheral effect Effects 0.000 claims description 14
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 11
- 229910052759 nickel Inorganic materials 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 239000006061 abrasive grain Substances 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 239000010410 layer Substances 0.000 abstract description 20
- 239000002356 single layer Substances 0.000 abstract description 5
- 230000003746 surface roughness Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 3
- 229910000906 Bronze Inorganic materials 0.000 description 3
- 239000010974 bronze Substances 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000005011 phenolic resin Substances 0.000 description 3
- 229920001568 phenolic resin Polymers 0.000 description 3
- 229910052582 BN Inorganic materials 0.000 description 2
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
- B24D7/14—Zonally-graded wheels; Composite wheels comprising different abrasives
Definitions
- the invention relates to a grinding wheel, in particular for deep grinding, with a two-part abrasive coating which contains fine-grained diamonds in one part and a second abrasive coating part which is formed on one side and contains coarser-grained diamonds.
- a so-called roof profile forms on the effective grinding wheel surface over the course of the grinding wheel life.
- the shape of the roof profile depends on the width of the grinding surface and the height of the grinding wheel infeed.
- the main cutting work has to be done by the part of the grinding wheel grinding surface that initially engages in the feed direction, while the subsequent part largely determines the surface quality. Since the different surface sections of the grinding wheel therefore have different tasks it is known to design the parts of the grinding surface differently, taking into account the different loads, specifically with regard to the diamond grain sizes used in these sections and the concentration of diamonds.
- a known circumferential grinding wheel carries fine-grained diamonds on its circumferential surface and a cup grinding wheel on its end surface, which are held in a bond which consists, for example, of a phenolic resin and copper.
- a bond which consists, for example, of a phenolic resin and copper.
- diamond grains of larger classification are arranged, while in the area which determines the surface quality, diamonds of smaller classification are embedded.
- the areas have the same type of bond and the diamond grains are distributed stochastically according to their respective volumetric proportion in the bond.
- the different abrasive coating zones are selected so that the grinding wheel with the covering part with a fine grain classification achieves the required surface quality, the covering part with a larger diamond classification does not break down under the resulting load at a given machining volume per unit of time and does not generate any impermissible forces and temperatures.
- the covering width of 5 mm the division into a 3 mm wide covering zone for the fine-grained part and a 2nd mm wide covering zone for the coarse-grained part.
- the object of the invention is to provide a grinding wheel with a small engagement width for deep grinding, which continuously has a very high diamond content in the outer edge region of the end face as protection against wear or rounding of this outer edge and at the same time brings about a high surface quality.
- the abrasive coating of a grinding wheel on the front lying in the feed direction consists of a coating of diamond grains with a grain size of 150 to 400 micrometers, which in a circumferential disc one layer in the direction of the axis of rotation of the grinding wheel and multi-layer perpendicular to that Axis of rotation of the grinding wheel is formed, the diamond grains touching each other in z.
- a galvanically deposited nickel bond are held, while in a cup grinding wheel the single-layer design of the diamond coating is aligned parallel to the axis of rotation.
- the invention thus provides for the single-layer abrasive coating zone with coarse diamond and a wear-resistant bond to be assigned a zone with a fine-grained abrasive that is around 2-3 mm wide.
- This part of the abrasive coating has the task of reducing the roughness of the workpiece surface.
- the so trained grinding disc allows a high stock removal rate, whereby the abrasive coating zone with coarse diamond, which is crucial for the high stock removal rate, only intervenes with a small effective width and therefore implements the process principle, while a downstream part of the abrasive coating zone only reduces the roughness generated on the workpiece surface, without the process principle of to significantly influence the narrow engagement width to achieve high performance.
- the grinding wheel according to the invention has the advantage that from the start of its use until it is completely used up, the load on an extremely high diamond portion of the end face is continuously absorbed by the extremely high proportion of diamond, so that no roof formations or bevels or roundings on this edge in Need to be bought. It shows that even with the greatest loads, such as deep grinding using the quick-point method, the wear on the outside of the grinding wheel is no greater than that of the exposed to a lower load, but also less resistant peripheral surface, so that the original profile is retained even after prolonged use and wear of the grinding wheel. Due to the fact that the relatively large diamond grains lie directly against one another in the outer edge area, not only is a long tool life achieved, but also because of the short life effective grinding wheel width also ensures a high stock removal rate with optimal grinding properties.
- the intermediate layer consists of a metal which is part of the binding of the fine abrasive grains of the abrasive coating on the peripheral surface. If this bond consists, for example, of a phenolic resin with a copper powder, the intermediate layer should preferably consist of a powder-metallurgical copper layer. It is sufficient if the intermediate layer has a thickness of only 0.1 to 0.3 mm, as can be achieved in a sintering process in a form in which this intermediate layer and the binder with the fine-grained are simultaneously distributed small diamond is sintered.
- FIG. 1 shows a grinding wheel 2 in its position relative to the workpiece 1 when grinding according to the quick-point method, in which there is an almost punctiform contact between these parts and thus a very high load on the grinding wheel 2.
- the axis of the grinding wheel 2 is inclined at an angle ⁇ to the axis of the workpiece 1 and in the plan view according to the right part of FIG. 1 by an angle ⁇ , so that not only an inclined position exists within the drawing level, but also in spatial terms.
- the feed of the grinding wheel 2 takes place according to the arrow 3, the arrow 3 'indicating the direction of advance.
- the outer end face area of the grinding wheel is loaded.
- This end face region is designated by 6 in FIG. 2, the grinding wheel 2 again being advanced in accordance with the arrow 3.
- the surface quality of the workpiece 1 is generated by the peripheral surface 4, while the end surface 6 causes the material to be removed.
- the grinding covering consists of two different parts.
- Part 6 of the abrasive coating has larger diamond grains than that of part 5.
- the diamonds are held on the front side in a loose distribution and at a distance from one another in a bond which consists of the same material as the bond of the abrasive coating 5 of the circumferential surface 4. This has the consequence that at a heavier load a "roof profile" 7 or a bevel on the outer edge of the grinding wheel must be accepted, which leads to a reduction in the removal rate and increase in the grinding forces of the tool.
- FIGS. 4 and 5 which have a grinding surface 9 on the end face or peripheral side of the grinding wheel, which consists of a single covering made of large diamond grains 9 ', which is formed in one layer in the direction parallel to the axis of rotation of the grinding wheel and in multiple layers in the direction perpendicular to the axis of rotation of the peripheral grinding wheel according to FIG. 5 and vice versa for the cup grinding wheel according to FIG. 4.
- the axis of rotation of the wheel runs parallel to the ground workpiece edge.
- the circumferential surface of the grinding wheel is marked "4" in FIG.
- the axis of rotation of the grinding wheel runs perpendicular to the ground workpiece edge.
- the coarse-grained part of the covering is the peripheral surface of the grinding wheel and the grinding surface marked "4" is the end surface of the grinding wheel.
- the feed direction runs parallel to the ground workpiece edge and is directed from left to right in FIG.
- the individual abrasive grains 9 ' which have a size of 150 to 400 micrometers, are held in a galvanically deposited nickel bond 10, which allows an arrangement of the diamond grains 9' to each other, in which they touch directly.
- a phenolic resin with nickel powder is provided, so that there is sufficient adhesion to the electroplated nickel for holding the diamond 9 '.
- an intermediate layer 8 is provided in the embodiment according to FIG. 5 for better adhesion.
- This intermediate layer 8 applied by powder metallurgy in the sintering process preferably consists of a metal which is also part of the bond of the abrasive coating 5. If, for example, this bond consists of a resin and a copper powder or steel powder, the intermediate layer 8 can also consist of copper or steel.
- an electroplated nickel bond is not the only solution to bind a single-layer abrasive coating; rather, thin, sintered bonds are also possible. For example, let distribute a thin layer of bronze with coarse-grained diamond evenly on a surface of the form, if necessary compact slightly cold and then sprinkle a 3 mm thick layer on top of it, which may consist of a different bronze plus fine-grained diamond in a much lower concentration. Both could then be sintered.
- synthetic resin bonds or with different bonds for the coarse-grained and the fine-grained zone of the abrasive coating The possibilities are therefore numerous, although the galvanic deposit is a preferable solution as a bond.
- diamonds or diamond grains are generally mentioned above, it is understood that these can be natural or artificially produced diamonds, such as, for example, grains of cubic-crystalline boron nitride, which is equivalent in effect to the diamond grains.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3811584 | 1988-04-07 | ||
| DE3811584A DE3811584A1 (de) | 1988-04-07 | 1988-04-07 | Schleifscheibe zum tiefschleifen |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0336066A2 true EP0336066A2 (fr) | 1989-10-11 |
| EP0336066A3 EP0336066A3 (fr) | 1991-05-22 |
| EP0336066B1 EP0336066B1 (fr) | 1994-07-13 |
Family
ID=6351508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP89101782A Expired - Lifetime EP0336066B1 (fr) | 1988-04-07 | 1989-02-02 | Meule de rectification en plongée |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5063714A (fr) |
| EP (1) | EP0336066B1 (fr) |
| AT (1) | ATE108358T1 (fr) |
| DE (2) | DE3811584A1 (fr) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1637284A1 (fr) * | 2004-09-17 | 2006-03-22 | Toyoda Koki Kabushiki Kaisha | Meule |
| WO2019114871A1 (fr) * | 2017-12-14 | 2019-06-20 | Schaeffler Technologies AG & Co. KG | Procédé pour rectifier des éléments de roulement pour un palier à roulement et utilisation d'un procédé |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04141355A (ja) * | 1990-09-28 | 1992-05-14 | Toyoda Mach Works Ltd | 研削方法 |
| US5647790A (en) * | 1994-12-22 | 1997-07-15 | Sumitomo Heavy Industries, Ltd. | Method for generating tooth surfaces of globoid worm wheel |
| DE19533836B4 (de) * | 1995-09-13 | 2005-07-21 | Ernst Winter & Sohn Diamantwerkzeuge Gmbh & Co. | Profilschleifscheibe und Verfahren und Vorrichtung zur Herstellung |
| WO2003049903A1 (fr) * | 2001-12-13 | 2003-06-19 | Nikon Corporation | Meule et procede de fabrication correspondant pour element optique |
| DE102006035845A1 (de) | 2006-08-01 | 2008-02-07 | Erwin Junker Maschinenfabrik Gmbh | Verfahren zum Schleifen einer Wendeschneidplatte und Schleifscheibe zur Durchführung des Schleifverfahrens |
| TWI453089B (zh) * | 2010-08-16 | 2014-09-21 | Saint Gobain Abrasives Inc | 對包含超級磨料材料的工件進行磨削之方法 |
| TWI454342B (zh) * | 2010-08-16 | 2014-10-01 | Saint Gobain Abrasives Inc | 用於對超級磨料工件進行磨削之磨料物品 |
| TW201504416A (zh) | 2011-06-30 | 2015-02-01 | Saint Gobain Abrasives Inc | 磨料物品及製造方法 |
| DE102013202509A1 (de) | 2013-02-15 | 2014-08-21 | Erwin Junker Grinding Technology A.S. | Verfahren und schleifwerkzeug zum hochgenauen centerless-schleifen von wellenteilen mit hoher oberflächengüte |
| CN103406819B (zh) * | 2013-08-23 | 2015-05-06 | 摩士集团股份有限公司 | 轴承密封槽成型切入磨削方法 |
| JP6407773B2 (ja) * | 2015-03-13 | 2018-10-17 | 日本碍子株式会社 | ハニカム構造体の製造方法、及び研削用砥石 |
| JP6629453B2 (ja) * | 2016-08-10 | 2020-01-15 | 日本碍子株式会社 | 研削加工物の製法 |
| US10639763B2 (en) | 2017-11-14 | 2020-05-05 | Ford Motor Company | Method for journal finishing of crankshafts, camshafts, and journals |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB986427A (en) * | 1961-07-13 | 1965-03-17 | Eugene Fouquet | High-performance grinding process, more particularly for the machining of metals of all degrees of hardness |
| FR2139489A5 (fr) * | 1971-05-12 | 1973-01-05 | De Beers Ind Diamond | |
| FR2285213A1 (fr) * | 1974-09-18 | 1976-04-16 | De Beers Ind Diamond | Corps abrasif, notamment pour la fabrication de meules |
| WO1984002300A1 (fr) * | 1982-12-13 | 1984-06-21 | Hale Engineering Inc | Outils de coupe et d'abrasion |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB530670A (en) * | 1939-07-15 | 1940-12-17 | John Robertson Brown | Improvements in or relating to grinding or sharpening wheels |
| DE752952C (de) * | 1940-09-29 | 1951-08-16 | Finzler | Verfahren zur elektrolytischen Bindung hochwertiger Schleifmittel, z. B. Diamantkoerner, in Metall zwecks Herstellung von Schleifwerkzeugen |
| US2728651A (en) * | 1952-11-25 | 1955-12-27 | Gen Electric | Diamond abrasive wheel |
| DE1106636B (de) * | 1953-02-18 | 1961-05-10 | Carborundum Co | Metallgebundener Schleifkoerper |
| US3067551A (en) * | 1958-09-22 | 1962-12-11 | Bethlehem Steel Corp | Grinding method |
| US3121981A (en) * | 1960-09-23 | 1964-02-25 | Rexall Drug Chemical | Abrasive wheels and method of making the same |
| DE1502646A1 (de) * | 1965-08-12 | 1969-07-03 | Naradi Narodni Podnik | Verfahren zur Herstellung eines Diamantformwerkzeugs und danach hergestelltes Werkzeug |
| GB1181782A (en) * | 1966-03-11 | 1970-02-18 | Norton Abrasives Ltd | Improvements relating to Grinding |
| US3691707A (en) * | 1969-11-12 | 1972-09-19 | Sola Basic Ind | Semiconductor material cutting apparatus and method of making the same |
| US4180048A (en) * | 1978-06-12 | 1979-12-25 | Regan Barrie F | Cutting wheel |
| SE8004172L (sv) * | 1979-06-26 | 1980-12-27 | Lippert H Gmbh | Sliporgan for metallbearbetning |
| US4407263A (en) * | 1981-03-27 | 1983-10-04 | Diamond Giken Co., Ltd. | Cutting blade |
| US4757645A (en) * | 1982-09-30 | 1988-07-19 | The Boeing Company | cutting tool and method of making same |
| US4456516A (en) * | 1983-05-12 | 1984-06-26 | Westinghouse Electric Corp. | Shaft rounding apparatus |
| JPS61100352A (ja) * | 1984-10-22 | 1986-05-19 | Toyota Banmotsupusu Kk | 研削工具 |
| US4561218A (en) * | 1985-02-08 | 1985-12-31 | Ex-Cell-O Corporation | Close tolerance internal grinding using coolant mist |
| DE3706868A1 (de) * | 1986-07-30 | 1988-02-11 | Winter & Sohn Ernst | Abrichtwerkzeug fuer schleifscheiben |
-
1988
- 1988-04-07 DE DE3811584A patent/DE3811584A1/de not_active Withdrawn
-
1989
- 1989-02-02 AT AT89101782T patent/ATE108358T1/de not_active IP Right Cessation
- 1989-02-02 DE DE58908024T patent/DE58908024D1/de not_active Expired - Lifetime
- 1989-02-02 EP EP89101782A patent/EP0336066B1/fr not_active Expired - Lifetime
- 1989-04-04 US US07/334,288 patent/US5063714A/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB986427A (en) * | 1961-07-13 | 1965-03-17 | Eugene Fouquet | High-performance grinding process, more particularly for the machining of metals of all degrees of hardness |
| FR2139489A5 (fr) * | 1971-05-12 | 1973-01-05 | De Beers Ind Diamond | |
| FR2285213A1 (fr) * | 1974-09-18 | 1976-04-16 | De Beers Ind Diamond | Corps abrasif, notamment pour la fabrication de meules |
| WO1984002300A1 (fr) * | 1982-12-13 | 1984-06-21 | Hale Engineering Inc | Outils de coupe et d'abrasion |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1637284A1 (fr) * | 2004-09-17 | 2006-03-22 | Toyoda Koki Kabushiki Kaisha | Meule |
| WO2019114871A1 (fr) * | 2017-12-14 | 2019-06-20 | Schaeffler Technologies AG & Co. KG | Procédé pour rectifier des éléments de roulement pour un palier à roulement et utilisation d'un procédé |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE108358T1 (de) | 1994-07-15 |
| US5063714A (en) | 1991-11-12 |
| EP0336066A3 (fr) | 1991-05-22 |
| EP0336066B1 (fr) | 1994-07-13 |
| DE58908024D1 (de) | 1994-08-18 |
| DE3811584A1 (de) | 1989-10-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0336066B1 (fr) | Meule de rectification en plongée | |
| DE3700250C2 (fr) | ||
| EP0254941B1 (fr) | Outil de dressage pour meules de rectification | |
| DE68919454T2 (de) | Werkzeugeinsatz. | |
| DE69034066T2 (de) | Schleifmittel und Verfahren zu dessen Herstellung | |
| DE2516147C2 (de) | Schneideneinsatz für ein Gesteinsschneidwerkzeug | |
| DE3202697C2 (fr) | ||
| DE2840610A1 (de) | Schneideinsatz fuer die spanabhebende bearbeitung | |
| DE3134959A1 (de) | "schneidwerkzeug" | |
| DE2222947A1 (de) | Schleifscheibe | |
| DE2058468A1 (de) | Trennschleifsaegeblatt | |
| DE3114687A1 (de) | Schneidblatt | |
| EP0280786B1 (fr) | Elément abrasif pour dispositifs de meulage motorisés | |
| DE8804567U1 (de) | Schleifscheibe zum Tiefschleifen | |
| DE2922776C2 (fr) | ||
| DE2543275C3 (de) | Umfangs-Segmentschleifscheibe | |
| DE102019117799B4 (de) | Zerspanungswerkzeug mit asymmetrischen Zähnen mit Schneidpartikeln | |
| DE3336593C1 (de) | Verfahren zum Herstellen eines zahnrad-,zahnstangen- oder schneckenfoermigen Werkzeugs zum Feinbearbeiten der Zahnflanken von insbesondere gehaerteten Zahnraedern | |
| CH641396A5 (en) | Flat-lapping or polishing wheel | |
| DE29913046U1 (de) | Schleifscheibe | |
| DE3430418C1 (de) | Schleifwerkzeug | |
| DE8321789U1 (de) | Trennschleifscheibe | |
| DE29711063U1 (de) | Schleifkörper | |
| DE3711396C2 (fr) | ||
| DE4143262A1 (de) | Honleiste |
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: A2 Designated state(s): AT CH DE FR GB IT LI SE |
|
| PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
| AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT CH DE FR GB IT LI SE |
|
| 17P | Request for examination filed |
Effective date: 19910618 |
|
| 17Q | First examination report despatched |
Effective date: 19921208 |
|
| 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 SE |
|
| REF | Corresponds to: |
Ref document number: 108358 Country of ref document: AT Date of ref document: 19940715 Kind code of ref document: T |
|
| REF | Corresponds to: |
Ref document number: 58908024 Country of ref document: DE Date of ref document: 19940818 |
|
| ITF | It: translation for a ep patent filed | ||
| GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 19940915 |
|
| ET | Fr: translation filed | ||
| EAL | Se: european patent in force in sweden |
Ref document number: 89101782.4 |
|
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| 26N | No opposition filed | ||
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: AT Payment date: 19990211 Year of fee payment: 11 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 19990301 Year of fee payment: 11 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20000202 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20000229 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20000229 |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: IF02 |
|
| 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: 20050202 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 20080213 Year of fee payment: 20 Ref country code: DE Payment date: 20071116 Year of fee payment: 20 Ref country code: GB Payment date: 20080130 Year of fee payment: 20 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20080208 Year of fee payment: 20 |
|
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: PE20 Expiry date: 20090201 |
|
| EUG | Se: european patent has lapsed | ||
| 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 EXPIRATION OF PROTECTION Effective date: 20090201 |