EP0812255B1 - Spindelpresse und verfahren zum betreiben einer spindelpresse - Google Patents
Spindelpresse und verfahren zum betreiben einer spindelpresse Download PDFInfo
- Publication number
- EP0812255B1 EP0812255B1 EP96904709A EP96904709A EP0812255B1 EP 0812255 B1 EP0812255 B1 EP 0812255B1 EP 96904709 A EP96904709 A EP 96904709A EP 96904709 A EP96904709 A EP 96904709A EP 0812255 B1 EP0812255 B1 EP 0812255B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- piston
- stroke
- return
- cylinder space
- screw
- 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 - Lifetime
Links
- 238000000034 method Methods 0.000 title claims description 12
- 230000008569 process Effects 0.000 title description 5
- 238000003860 storage Methods 0.000 claims description 20
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 238000005192 partition Methods 0.000 claims description 2
- 230000001419 dependent effect Effects 0.000 description 7
- 238000005242 forging Methods 0.000 description 5
- 238000003825 pressing Methods 0.000 description 4
- 239000000725 suspension Substances 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
- B30B1/18—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by screw means
- B30B1/188—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by screw means driven by a continuously rotatable flywheel with a coupling arranged between the flywheel and the screw
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
- B30B1/18—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by screw means
- B30B1/183—Braking mechanisms for the return movement of the press ram
Definitions
- the invention relates to a method for operating a Screw press with a rotatably mounted spindle, one in one direction of rotation continuously rotating flywheel, one fluid-operated friction clutch, over the Clutch disc to the working stroke the frictional connection the spindle can be manufactured with the flywheel, and one Reverse drive for return stroke in a cubic capacity of the Machine body movable tool slide, which is connected to air cylinders for weight compensation, which a storage pressure chamber and a piston on the top and have a piston-side cylinder space, and one Screw press to carry out the process.
- Such a clutch screw press is by DE 42 08 638 A has become known.
- the flywheel is made by one Electric motor continuously in the same via a flat belt Direction of rotation driven all round.
- Friction clutch coupled to the flywheel while moving opens a braking unit with little delay.
- This sets consist of several spring-loaded, pneumatically operated Individual brakes together, the one with clamping jaws a brake disc capture that over a in the hollow-bored spindle arranged torsion spring bar positively with the spindle connected is.
- the torsion spring bar forms in this known Screw press is a component of the reversing drive, which is there is designed in the form of a torque storage drive, the its energy comes from a storage device that comes from the spindle in the course of the plunger and thus the slide downward movement is charged.
- the forming energy required to deform the workpiece delivers the flywheel, which loses speed.
- the clutch slips namely when the pressing or forging force over the Thread bevel creates a moment on the clutch, which is larger is the set clutch torque.
- the spindle accelerates the tool slide, and stands for the return stroke in this known screw press supporting the entire stored energy from the Torque storage drive available, which is then released and to accelerate the spindle together with the clutch disc and to return the carriage to its starting position is exploited.
- the stored energy of the press stand or machine body is available for the return stroke or for accelerating the spindle and clutch disc along with the block carrier.
- the machine body is stretched proportionally to the forging force, ie it takes up work during the increase in force, which it releases again when the force drops.
- the tool slide experiences an upward speed that is 0.1 m / s for cake upsetting (soft upsetting, such as descaling of workpieces) and 1.2 bounce with maximum force, for example can reach m / s.
- the tool slide thus driven by the uncontrolled reversing drive and by the rebound energy from the body suspension - in the case of the known press also supplemented by the energy stored in the course of the downward movement - requires a braking torque and a braking distance which, based on the energy to be braked from the impact impact with F max must be designed.
- the braking torque and the braking distance therefore have a significant influence on the design and manufacturing costs of a screw press.
- the invention has for its object a method and a clutch screw press of the type mentioned create with which the operation of the press improve, especially the return stroke for the Tool slide can reduce required braking energy.
- This object is achieved according to the invention by a method in that a weight compensation regulated as a function of the return stroke speed is formed and air displaced by the air cylinder pistons during the return stroke is throttled.
- the invention makes use of the fact that, by preventing the inflow of air and restricting the displaced air during lifting movements of the piston of the air cylinder or of the tool slide connected to the piston, different pressure ratios can be achieved which decisively reduce the braking energy required to brake the tool slide. This is particularly the case with a high return stroke or upward speed, as is the case with a bounce with F max .
- the braking energy is then reduced by the amount that the weight compensation, which is regulated in a speed-dependent manner by throttling, stores and cannot release during the time of the return stroke.
- An execution of a screw press for performing the The procedure provides that the storage pressure chamber over communicating at least one non-return and one throttle element connected to the piston-side cylinder space and the Cylinder space above the piston is open.
- the one with the Piston-communicating connection on the underside of the cylinder ensures with short-stroke presses that the maximum, namely Already make the bottom dead center braking effect is achieved.
- An advantageous embodiment of the invention stipulates that the speed-controlled Weight compensation for a short-stroke press Storage pressure chamber through one with the at least one Non-return and throttle element provided partition from the piston-side cylinder space is separated. Due to the from the accumulator pressure chamber in the piston underside Cylinder space above the throttle element reduces the inflow Air volume, the pressure there decreases accordingly Volume increase or the lack of air volume.
- the storage pressure chamber to the piston-side cylinder space open and the cylinder space above the piston by one having at least one non-return and one throttle element Cover is closed.
- This is a turn Suitable design especially for long-term eating because the lower part of the press stroke can be run through quickly can and which is regulated depending on the return stroke speed Braking only at the top of the stroke or before top dead center Increased use - Deviating from that described above
- the variant for a long-stroke press is not the one over here flowing out of the tool slide, but instead in the piston-flowing cylinder chamber or out of it displaced air throttled.
- the screw press shown in the embodiment of FIG. 1 1 has a multi-part machine body 2, in which a Tool slide 3 is guided movable up and down. Of the Tool slide 3 is connected to a spindle nut 4, which with one in the machine body 2 in one with the upper one Crosshead fixed axial bearing rotatably mounted spindle 5 interacts, such that the tool slide 3 each according to the direction of rotation of the spindle 5 via the spindle nut 4 either to the working stroke in the direction of that in Unterjoch 6 des Machine body 2 arranged lower die 7 moved or by this removed.
- the spindle 5 is driven by a flywheel 8 driven by a vertically arranged electric motor 9 keeps a drive belt 11 in constant circulation.
- a clutch disc 12 is used for the drive connection is rotatably connected to the spindle 5 and hydraulically applied frictionally coupled to the flywheel 8 becomes. This rotates the flywheel 8 and the spindle 5, and the tool slide 3 with the upper die Execution of a forging blow against the lower die 7 moves.
- air cylinders 13 are pressurized and attached to the tool slide 3 via its piston rods 14, so that the axially moving mass, i.e. the tool slide 3 along with spindle nut 4 is completely weight balanced.
- the air or Balance cylinder 13 are in the Pressure boilers in connection with side stands, see above that no special piping is required.
- the spindle 5 has a through hole, not shown, in the one to far beyond the positive on the spindle 5 fixed clutch disc 12 protruding, the spindle 5 torsion spring rod 15 thus extending upwards extends.
- a thickened head piece of the torsion spring bar 15 is rotatably mounted in a bearing bush, which is in a brake unit 16 carrying, on one the hydraulic Piston for pressing the clutch disc 12 against the flywheel 8 with a pressure distributor supplying rotary distributor 17 arranged holding bridge 18 is located.
- the brake unit 16 sets consist of several spring-loaded, pneumatically operated Single brakes 19 together with a brake disc with jaws 20 capture, the positive via the torsion spring bar 15 is connected to the spindle 5.
- the holding bridge 18 and thus the brake unit 16 is also on the one hand on the Retaining bridge 18 and on the other hand, the stage 21 attached Torque support 22 secured against rotation.
- a hydraulic motor 23 which also acts as a pump, is also attached, the - as known from the screw press mentioned at the beginning - as a torque storage drive for the return stroke of the tool slide 3 is formed.
- the to supply the hydraulic motor 23 and of the rotary distributor 17 required hydraulic units 24 are arranged on the stage 21 of the screw press 1 and over Pressure medium hoses 25 with the rotary distributor 17 or the Hydromotor 23 connected.
- the formation of the air cylinder 13 of the screw press 1 after Fig. 1 for speed-dependent weight compensation is shown in detail in Fig. 2.
- the air cylinder 13 - too a symmetrical one on the other side of the press is arranged - has a piston chamber on the top of the piston 26a and a piston-side cylinder space 26b, the there is a storage pressure chamber 27, which any Cross section, connects.
- the pressure chamber 27 is through an intermediate wall 28 separated from the cylinder spaces 26a, 26b.
- Accumulator pressure chamber 27 is in the direction of the double arrow 29 piston rod 14 movable up and down in seals 30 sealed led.
- the in the cylinder spaces 26a, 26b arranged piston 31 is with solid lines in its lower position, i.e. the bottom dead center drawn; the upper position, i.e. the top dead center is with dashed lines Lines drawn.
- the intermediate wall 28 are more than Check valves (or check valves) 32, as symbolic represented, and at least - as again symbolically indicated -
- a throttle element or a nozzle 33 is arranged.
- the Throttle element 33 can, in the simplest case, be one shown in FIG. 3 Be bore hole 34 with an internal thread, in which to Regulation can screw in a screw plug 35.
- the pressures P1 are below the piston 31 in the piston-side cylinder space 26b of the air cylinder 13 and balanced in the accumulator pressure chamber 27.
- the air from the piston underside Cylinder chamber 26b via the check valves 32 and that Throttle element 33 (or bore hole 34 or throttle valve) pressed into the storage pressure chamber 27 located below.
- the pressure P1 increases compared to the pressure P2 Storage pressure chamber 27 slightly.
- the compressed air can flow in from the accumulator pressure chamber 27 so quickly that there is no significant pressure difference between P1 and P2.
- the air compensation cylinders 13 can develop their full effectiveness to compensate for the axially moving parts.
- a pressure drop P 1 which is dependent on the return stroke speed, is caused in the cylinder space 26b on the piston side, in the embodiments according to FIGS. 4 and 5 a pressure build-up P o occurs , specifically according to FIG piston-side cylinder space 126a.
- This is closed at the top by a cover 36, in which the at least one check valve 132 and the at least one nozzle or throttle 133 are arranged.
- the piston-side cylinder space 126b of the air cylinder 113 is open to the accumulator pressure chamber 127.
- the air is compressed in the cylinder chamber 126a on the upper side of the piston, since it can only flow out via the throttles 133 with a delay; the pressure P o rises and counteracts the return stroke.
- the braking begins very late, namely before top dead center.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Press Drives And Press Lines (AREA)
- Control Of Presses (AREA)
Description
- eine hohe Rückprallenergie hat eine hohe Aufwärtsgeschwindigkeit zur Folge
- eine hohe Aufwärtsgeschwindigkeit hat einen hohen Druckabfall zur Folge
- ein hoher Druckabfall hat eine geringe Antriebsenergieentnahme des Gewichtsausgleichs während des Aufwärtshubes zur Folge.
- Fig. 1
- eine einen geschwindigkeitsabhängig regulierten Gewichtsausgleich aufweisende Kupplungs-Spindelpresse in der Vorderansicht, im Teilschnitt dargestellt;
- Fig. 2
- als Einzelheit den in Fig. 1 in der linken Hälfte gezeigten Luftzylinder zum geschwindigkeitsabhängig regulierten Gewichtsausgleich, vergrößert dargestellt;
- Fig. 3
- als Einzelheit eine alternative Ausführung einer Drossel, die in dem in Fig. 2 strichpunktiert eingekreisten Bereich "X" angeordnet werden kann; und
- Fig. 4
- von einer Kupplungs-Spindelpresse der in Fig. 1 gezeigten Art als Einzelheit einen demgegenüber geänderten, insbesondere für langhübige Pressen geeigneten, geschwindigkeitsabhängig regulierten Gewischtsausgleich, als Teilschnitt in der Vorderansicht gezeigt.
Claims (4)
- Verfahren zum Betreiben einer Spindelpresse (1; 100; 200) mit einer drehbar gelagerten Spindel (5), einem in einer Drehrichtung ununterbrochen umlaufenden Schwungrad (8), einer druckmittelbetätigten Reibungskupplung, über deren Kupplungsscheibe (12) zum Arbeitshub die reibschlüssige Verbindung der Spindel (5) mit dem Schwungrad (8) herstellbar ist, und einem Rückdrehantrieb (23) zum Rückhub des in einem Hubraum des Maschinenkörpers (2) auf- und abbeweglich geführten Werkzeugschlittens (3), der zum Gewichtsausgleich an Luftzylinder (13; 113; 123) angeschlossen ist, die eine Speicher-Druckkammer (27; 127; 227) sowie einen kolbenoberseitigen und einen kolbenunterseitigen Zylinderraum (26a bzw. 26b; 126a bzw. 126b; 226a bzw. 226b) aufweisen.
dadurch gekennzeichnet,
daß die Luftzylinder (13; 113; 213) zu einem abhängig von der Rückhubgeschwindigkeit regulierten Gewichtsausgleich ausgebildet werden, indem beim Rückhub von den Luftzylinder-Kolben (31) verdrängte Luft gedrosselt wird. - Spindelpresse zum Durchführen des Verfahrens nach Anspruch 1, mit einer drehbar gelagerten Spindel (5), einem in einer Drehrichtung ununterbrochen umlaufenden Schwungrad (8), einer druckmittelbetätigten Reibungskupplung, über deren Kupplungsscheibe (12) zum Arbeitshub die reibschlüssige Verbindung der Spindel (5) mit dem Schwungrad (8) herstellbar ist, und einem Rückdrehantrieb (23) zum Rückhub des in einem Hubraum des Maschinenkörpers (2) auf- und abbeweglich geführten Werkzeugschlittens (3), der zum Gewichtsausgleich an Luftzylinder (13; 113; 123) angeschlossen ist die eine Speicher-Druckkammer (27; 127; 221) sowie einen kolbenoberseitigen und einen kolbenunterseitigen Zylinderraum (26a bzw. 26b; 126a bzw. 126b; 226a bzw. 226b) aufweisen,
dadurch gekennzeichnet,
daß die Speicher-Druckkammer (27) über mindestens ein Rückschlag- und ein Drosselelement (32, 33) kommunizierend mit dem kolbenunterseitigen Zylinderraum (26b) verbunden und der Zylinderraum (26a) über dem Kolben (31) offen ist. - Spindelpresse zum Durchführen des Verfahrens nach Anspruch 1, mit einer drehbar gelagerten Spindel (5), einem in einer Drehrichtung ununterbrochen umlaufenden Schwungrad (8), einer druckmittelbetätigten Reibungskupplung, über deren Kupplungsscheibe (12) zum Arbeitshub die reibschlüssige Verbindung der Spindel (5) mit dem Schwungrad (8) herstellbar ist, und einem Rückdrehantrieb (23) zum Rückhub des in einem Hubraum des Maschinenkörpers (2) auf- und abbeweglich geführten Werkzeugschlittens (3), der zum Gewichtsausgleich an Luftzylinder (13; 113; 123) angeschlossen ist, die eine Speicher-Druckkammer (27; 127; 227) sowie einen kolbenoberseitigen und einen kolbenunterseitigen Zylinderraum (26a bzw. 26b; 126a bzw. 126b; 226a bzw. 226b) aufweisen,
dadurch gekennzeichnet,
daß die Speicher-Druckkammer (127) zum kolbenunterseitigen Zylinderraum (126b) hin offen und der Zylinderraum (126a) über dem Kolben (31) durch einen mindestens ein Rückschlag- und ein Drosselelement (132, 133) aufweisenden Deckel (36) verschlossen ist. - Spindelpresse nach Anspruch 2,
dadurch gekennzeichnet,
daß die Speicher-Druckkammer (27) durch eine mit dem mindestens einen Rückschlag- und Drosselelement (32, 33) versehene Zwischenwand (28) von dem kolbenunterseitigen Zylinderraum (26b) getrennt ist
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19507056 | 1995-03-01 | ||
| DE1995107056 DE19507056A1 (de) | 1995-03-01 | 1995-03-01 | Spindelpresse und Verfahren zum Betreiben einer Spindelpresse |
| PCT/DE1996/000316 WO1996026827A1 (de) | 1995-03-01 | 1996-02-24 | Spindelpresse und verfahren zum betreiben einer spindelpresse |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0812255A1 EP0812255A1 (de) | 1997-12-17 |
| EP0812255B1 true EP0812255B1 (de) | 1999-01-27 |
Family
ID=7755301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP96904709A Expired - Lifetime EP0812255B1 (de) | 1995-03-01 | 1996-02-24 | Spindelpresse und verfahren zum betreiben einer spindelpresse |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0812255B1 (de) |
| DE (2) | DE19507056A1 (de) |
| ES (1) | ES2128159T3 (de) |
| WO (1) | WO1996026827A1 (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6053099A (en) * | 1998-08-26 | 2000-04-25 | The Minster Machine Company | Flywheel engaged pump/motor |
| CN101966759B (zh) * | 2010-10-12 | 2014-04-02 | 上海运良锻压机床有限公司 | 离合器电动螺旋压力机 |
| CN105057533A (zh) * | 2015-08-12 | 2015-11-18 | 曹立新 | 一种组合式锻压设备 |
| CN105081191A (zh) * | 2015-08-12 | 2015-11-25 | 曹立新 | 一种推力杆头的无飞边锻造方法 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH532466A (de) * | 1972-03-30 | 1973-01-15 | Hiller & Lutz | Dämpfungszylinder für Friktionsspindelpressen |
| DE2758973C2 (de) * | 1977-12-30 | 1979-11-22 | G. Siempelkamp Gmbh & Co, 4150 Krefeld | Spindelpresse |
| DE3613471C2 (de) * | 1986-04-22 | 1996-08-01 | Hasenclever Maschf Sms | Verwendung einer Kupplungs-Spindelpresse zur Herstellung von feuerfesten Formsteinen |
| DE4208638C2 (de) * | 1992-03-18 | 1996-07-11 | Hasenclever Maschf Sms | Kupplungs-Spindelpresse |
-
1995
- 1995-03-01 DE DE1995107056 patent/DE19507056A1/de not_active Withdrawn
-
1996
- 1996-02-24 WO PCT/DE1996/000316 patent/WO1996026827A1/de not_active Ceased
- 1996-02-24 ES ES96904709T patent/ES2128159T3/es not_active Expired - Lifetime
- 1996-02-24 DE DE59601226T patent/DE59601226D1/de not_active Expired - Lifetime
- 1996-02-24 EP EP96904709A patent/EP0812255B1/de not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| ES2128159T3 (es) | 1999-05-01 |
| WO1996026827A1 (de) | 1996-09-06 |
| DE59601226D1 (de) | 1999-03-11 |
| EP0812255A1 (de) | 1997-12-17 |
| DE19507056A1 (de) | 1996-09-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0694693B1 (de) | Vorrichtung und Verfahren zur Beeinflussung eines Ventils | |
| DE4042070C2 (de) | Druckmittelbetriebener Kraftschrauber | |
| DE19646913A1 (de) | Hydraulische Antriebseinheit einer Presse und eine Taumelscheiben-Axialkolbenpumpe mit variabler Kapazität zur Verwendung mit dieser Vorrichtung | |
| DE900322C (de) | UEberlastsicherung fuer die Anker einer Metallbearbeitungspresse | |
| CH631385A5 (de) | Hydraulisch angetriebene presse. | |
| EP0812255B1 (de) | Spindelpresse und verfahren zum betreiben einer spindelpresse | |
| DE2461633C2 (de) | Hydraulische Schlagvorrichtung | |
| DE4100716A1 (de) | Einrichtung zum blechhalten in einfachwirkenden pressen | |
| DE2221290B2 (de) | Schnittschlagdaempfungseinrichtung fuer mechanische pressen | |
| EP0564840B1 (de) | Spindelpresse | |
| DE3433121C1 (de) | Verfahren und Vorrichtung zur Dämpfung der am Ende der Formfüllphase auftretenden Druckspitze bei Druckgießmaschinen | |
| DE4042188A1 (de) | Einrichtung zur beeinflussung des energetischen und dynamischen verhaltens von antrieben in umformmaschinen | |
| DE3323428C2 (de) | ||
| EP0778110A2 (de) | Verfahren zur Beeinflussung des Betriebsverhaltens eines fluidbetriebenen Schlagwerks und zur Durchführung des Verfahrens geeignetes Schlagwerk | |
| EP0417753A2 (de) | Mechanische oder hydraulische Presse mit Zieheinrichtung oder Ziehstufe einer Stufenpresse | |
| DE2213810B2 (de) | Nietpresse | |
| DE4042190C2 (de) | Einrichtung zur Beeinflussung des energetischen und dynamischen Verhaltens von Antrieben in Umformmaschinen | |
| DE19507055C2 (de) | Spindelpresse | |
| DE2304460A1 (de) | Spindelpresse | |
| DE4028920A1 (de) | Mechanische oder hydraulische presse mit zieheinrichtung oder ziehstufe einer stufenpresse | |
| DE3915263C2 (de) | Spindelpresse | |
| DE1627484C (de) | Schmiedemaschine mit mechanischem An trieb des Stauchschhttens und hydraulischem Antrieb des Klemmschlittens fur die Klemm bewegung | |
| DD256851A1 (de) | Einrichtung zur steuerung des momentenverlaufes druckmittelbetaetigter reibungskupplungen bzw. -bremsen an pressen | |
| DE9203640U1 (de) | Spindelpresse | |
| DE1920936C (de) | Als Reaktionsgegenschlagmaschine ge stalteter, schnellaufender Pressenhammer |
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 |
|
| 17P | Request for examination filed |
Effective date: 19970826 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE ES FR GB IT |
|
| GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
| 17Q | First examination report despatched |
Effective date: 19980409 |
|
| GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
| GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
| GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE ES FR GB IT |
|
| ITF | It: translation for a ep patent filed | ||
| GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 19990209 |
|
| REF | Corresponds to: |
Ref document number: 59601226 Country of ref document: DE Date of ref document: 19990311 |
|
| ET | Fr: translation filed | ||
| REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2128159 Country of ref document: ES Kind code of ref document: T3 |
|
| 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: GB Ref legal event code: IF02 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20030130 Year of fee payment: 8 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20030206 Year of fee payment: 8 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: ES Payment date: 20030218 Year of fee payment: 8 |
|
| 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: 20040224 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040225 |
|
| GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20040224 |
|
| 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: 20041029 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
| REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20040225 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20140219 Year of fee payment: 19 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20140221 Year of fee payment: 19 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 59601226 Country of ref document: DE |
|
| 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 Effective date: 20150224 |
|
| 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: 20150901 |