DE19712664A1 - Deep drawing press - Google Patents
Deep drawing pressInfo
- Publication number
- DE19712664A1 DE19712664A1 DE19712664A DE19712664A DE19712664A1 DE 19712664 A1 DE19712664 A1 DE 19712664A1 DE 19712664 A DE19712664 A DE 19712664A DE 19712664 A DE19712664 A DE 19712664A DE 19712664 A1 DE19712664 A1 DE 19712664A1
- Authority
- DE
- Germany
- Prior art keywords
- recess
- drawn
- sensor
- drawing press
- press according
- 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.)
- Withdrawn
Links
- 239000002184 metal Substances 0.000 claims abstract description 11
- 238000006073 displacement reaction Methods 0.000 claims description 9
- 238000011156 evaluation Methods 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 230000003068 static effect Effects 0.000 abstract 1
- 238000005259 measurement Methods 0.000 description 4
- 230000032258 transport Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D24/00—Special deep-drawing arrangements in, or in connection with, presses
- B21D24/10—Devices controlling or operating blank holders independently, or in conjunction with dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/20—Deep-drawing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
- G01D11/30—Supports specially adapted for an instrument; Supports specially adapted for a set of instruments
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/36—Devices characterised by the use of optical means, e.g. using infrared, visible, or ultraviolet light
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/42—Devices characterised by the use of electric or magnetic means
- G01P3/50—Devices characterised by the use of electric or magnetic means for measuring linear speed
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
Description
Die Erfindung betrifft eine Ziehpresse zum Ziehen von Werkstücken nach der im Oberbegriff von Anspruch 1 näher definierten Art.The invention relates to a drawing press for drawing Workpieces according to the preamble of claim 1 Art.
Eine Ziehpresse dieser Art ist in der DE 43 38 898 C2 beschrieben. Zum berührungslosen Messen von Geschwin digkeiten und Wegen an den zu ziehenden Werkstücken während deren Einlaufbewegung in die Presse ist ein induktiver Wegsensor vorgesehen, der die Geschwindig keit der einlaufenden Werkstücke erfaßt. Nachteilig dabei ist jedoch, daß diese Erfassung einen hohen Auf wand darstellt, insbesondere hinsichtlich der Inte grierung des Wegsensors in das Ziehwerkzeug. Zum einen müssen die Wegsensoren oberflächlich freiliegen und zum anderen müssen sie beiderseits der zu ziehenden Werkstücke, in diesem falle von Blechteilen, angeord net werden. Darüber hinaus führen die vorbekannten Wegsensoren zu einem nichtlinearen und nur zu einem sehr geringen und damit nur sehr schwer verwendbaren und ungenauen Meßsignal. A drawing press of this type is in DE 43 38 898 C2 described. For non-contact measurement of speed dities and paths on the workpieces to be drawn during their entry movement into the press is a Inductive displacement sensor provided that the speed speed of incoming workpieces. Disadvantageous however, this is that this coverage is high wall represents, especially with regard to the inte of the displacement sensor in the drawing tool. On the one hand the path sensors must be exposed on the surface and on the other hand, they must be drawn on both sides of the one to be drawn Workpieces, in this case of sheet metal parts, arranged be net. In addition, the previously known Displacement sensors to a non-linear and only one very small and therefore very difficult to use and inaccurate measurement signal.
Aus der DE 44 44 661 A1 ist ein Verfahren und eine Vorrichtung zur berührungslosen Messung der Geschwin digkeit von Meßgütern mit beliebigem Muster der Ober fläche bekannt. Als Meßgut ist beispielsweise Straßen belag, das Schotterbett einer Gleisstrecke, ein För derband oder Walzgut angegeben. Als Sensor wird eine CCD-Zeilenkamera als bildwandelnder Sensor vorgeschla gen. Nähere Hinweise über Form und Einsatzort des Sen sores sind in dieser Druckschrift nicht aufgezeigt.DE 44 44 661 A1 describes one method and one Device for non-contact measurement of the speed of samples with any pattern of the upper area known. Roads, for example, are measured covering, the ballast bed of a track, a för derband or rolling stock specified. As a sensor CCD line scan camera proposed as image-converting sensor More information on the shape and location of the Sen sores are not shown in this publication.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde eine Ziehpresse der eingangs erwähnten Art mit einem Wegsensor zu versehen, der mit geringem Aufwand in die Ziehpresse integriert werden kann, insbesondere der verschleißfrei und wartungsfreundlich ist.The present invention is based on the object a drawing press of the type mentioned with a To provide displacement sensor that with little effort in the Drawing press can be integrated, especially the is wear-free and easy to maintain.
Erfindungsgemäß wird diese Aufgabe durch die im kenn zeichnenden Teil von Anspruch 1 genannten Merkmale gelöst.According to the invention, this task is characterized by the drawing part of claim 1 mentioned features solved.
Durch die Verwendung eines an sich bekannten bildwan delnden Sensors und dessen erfinderische Integrierung in das Ziehwerkzeug in eine Aussparung eines der bei den Teile des Ziehwerkzeuges läßt sich eine Geschwin digkeits-/Wegmessung ohne große Eingriffe in das Zieh werkzeug realisieren. So ist es z. B. nur erforderlich in einem der beiden Teile des Ziehwerkzeuges eine ent sprechende Aussparung (Bohrung) vorzunehmen. Der bild wandelnde Sensor kann problemlos in die Aussparung eingeschoben und bei Bedarf auch auf einfache Weise z. B., für Wartungs- oder Reparaturarbeiten, wieder herausgezogen werden. Da der bildwandelnde Sensor be rührungslos arbeitet ist dieser keinem Verschleiß un terworfen. Auch bei hohen Geschwindigkeiten, die in der Regel beim Ziehen von Blechteilen vorhanden sind, kann der Einlaufweg eines Blechflansches eindeutig erfaßt werden, womit fehlerhafte Preßteile rasch er kennbar sind.Through the use of a well-known bildwan delenden sensor and its inventive integration in the drawing tool in a recess in one of the the parts of the drawing tool can be a speed ity / displacement measurement without major intervention in the drawing implement tool. So it is z. B. only required one in one of the two parts of the drawing tool speaking recess (hole). The picture converting sensor can easily in the recess inserted and if necessary also in a simple way e.g. B., for maintenance or repair work, again be pulled out. Since the image-converting sensor be works without contact this is no wear and tear thrown. Even at high speeds in generally exist when drawing sheet metal parts, the entry path of a sheet metal flange can be unambiguous be detected, with which faulty pressed parts he quickly are recognizable.
Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung ergeben sich aus den Unteransprüchen und aus dem nachfolgend anhand der Zeichnung prinzipmäßig be schriebenen Ausführungsbeispiel.Advantageous refinements and developments of Invention result from the dependent claims and from which in principle be based on the drawing below written embodiment.
Da der Aufbau einer Ziehpresse für die Erfindung grundsätzlich nicht von Bedeutung ist und dieser auch bekannt ist (siehe z. B. DE 43 38 828 C2) werden nach folgend nur die für die Erfindung wesentlichen Teile einer zweifach wirkenden Ziehpresse prinzipmäßig be schrieben.Because the construction of a drawing press for the invention is fundamentally not important, and so is it is known (see, for example, DE 43 38 828 C2) following only the parts essential to the invention a double-acting drawing press in principle wrote.
Ein Ziehwerkzeug 1 der Ziehpresse weist ein hubbeweg liches Teil, z. B. einen Niederhalter 2, auf und ein stationäres Teil mit einer Matrize 3. Die Matrize 3 und ein Stempel 4 bilden die formgebende Partie des Ziehwerkzeuges. Ein zu ziehendes Werkstück, z. B. ein Blechteil 5 wird mit seinem Randbereich zwischen den Niederhalter 2 und die Matrize 3 eingebracht.A drawing tool 1 of the drawing press has a lifting part, for. B. a hold-down 2 , and a stationary part with a die 3rd The die 3 and a stamp 4 form the shaping part of the drawing tool. A workpiece to be drawn, e.g. B. a sheet metal part 5 is introduced with its edge region between the hold-down 2 and the die 3 .
Der Niederhalter 2 ist mit einer sich längs zur Trans portrichtung des zu ziehenden Blechteiles 5 sich er streckenden Aussparung in Form einer Bohrung 6 verse hen. Grundsätzlich läßt sich die Bohrung 6 auch in Querrichtung anbringen. Eine Anordnung in Längsrich tung ist jedoch im allgemeinen einfacher. In die Boh rung 6 ist ein Meßkopf 7 in Form einer Patrone einge schoben. In dem Meßkopf 7 befindet sich eine elektro nische CCD-Zeilenkamera 8 mit einem bildaufnehmenden Teil 9, der senkrecht zur Transportrichtung des zu ziehenden Blechteiles 5 liegt. Der bildwandelnde bzw. optische Sensor 8 ist von bekanntem Aufbau und in üb licher Weise mit LED's und Glasfasern zur Beleuchtung der Oberfläche des Blechteiles 5 versehen. Über eine Steuerleitung 10 ist der Sensor 8 mit einer Auswer teelektronik 11 verbunden. Die Auswerteelektronik 11 selbst steht zur Darstellung von Geschwindigkeits- Zeit-Diagrammen und Weg-Zeit-Diagrammen mit einer Rechner-/Monitoreinheit 12 und gegebenenfalls mit wei teren Einheiten, wie z. B. Drucker, in Verbindung.The hold-down 2 is hen with a longitudinal to the trans port direction of the sheet metal part 5 to be drawn he extending recess in the form of a bore 6 verses. Basically, the hole 6 can also be made in the transverse direction. However, an arrangement in the longitudinal direction is generally simpler. In the drilling tion 6 , a measuring head 7 is inserted in the form of a cartridge. In the measuring head 7 there is an electro African CCD line camera 8 with an image-taking part 9 , which is perpendicular to the direction of transport of the sheet metal part 5 to be drawn. The image-converting or optical sensor 8 is of a known construction and is provided in a conventional manner with LEDs and glass fibers for illuminating the surface of the sheet metal part 5 . The sensor 8 is connected to evaluation electronics 11 via a control line 10 . The evaluation electronics 11 itself is for displaying speed-time diagrams and distance-time diagrams with a computer / monitor unit 12 and optionally with other units, such as. B. printer, in connection.
Die Aussparung bzw. Bohrung 6 weist einen Sehschlitz 13 auf, der sich über dem zu ziehenden Blechstück 5 und unter dem bildwandelnden Sensor 8 befindet. Der Sehschlitz kann in seinem Querschnitt (in Trans portrichtung des Blechteiles 5) sehr schmal, z. B. 1 mm, ausgebildet sein. In Beobachtungsrichtung, d. h. quer zur Transportrichtung des zu ziehenden Blechtei les 5 ist der Sehschlitz 13 um ein mehrfaches länger, z. B. 15 mm. Aufgrund dieser schlanken Form des Seh schlitzes 13 wird ein Einlaufen des Blechs in den Schlitz verhindert. Außerdem ist die Gefahr von Ver schmutzungen der Optik des bildwandelnden Sensors 8 oder der Beleuchtung durch Verunreinigung, z. B. Sprit zer, vom offenen Ende des Sehschlitzes 13 her, relativ gering.The recess or bore 6 has a viewing slit 13 , which is located above the sheet metal piece 5 to be drawn and below the image-converting sensor 8 . The visual slit can be very narrow in its cross section (in the direction of the sheet metal part 5 in Trans), for. B. 1 mm. In the observation direction, ie transversely to the transport direction of the Blechtei les 5 to be drawn, the viewing slit 13 is several times longer, for. B. 15 mm. Because of this slim shape of the viewing slot 13 , the sheet is prevented from entering the slot. In addition, there is a risk of contamination of the optics of the image-converting sensor 8 or the illumination due to contamination, e.g. B. fuel zer, from the open end of the slit 13 ago, relatively low.
Zusätzlich kann zur Freihaltung und zur Säuberung des Sehschlitzes 13 eine Druckluftleitung 14 vorgesehen sein, die im Bereich des Sehschlitzes 13 endet. Die Druckluftleitung 14 ist ebenfalls in den Meßkopf 7 integriert und wird am freien Ende des Meßkopfes 7 in nicht näher dargestellter Weise mit einem Druckluftan schluß verbunden.In addition, a compressed air line 14 can be provided to keep the viewing slit 13 free and to clean it, which ends in the region of the viewing slit 13 . The compressed air line 14 is also integrated in the measuring head 7 and is connected at the free end of the measuring head 7 in a manner not shown with a Druckluftan circuit.
Bei dem vorstehend beschriebenen Ausführungsbeispiel ist die Aussparung bzw. Bohrung 6 im Niederhalter 2 angeordnet. Selbstverständlich ist es im Rahmen der Erfindung jedoch auch möglich die Aussparung bzw. Boh rung 6 mit dem Sehschlitz 13 in der Matrize 3 anzuord nen. In diesem Falle sind der bildaufnehmende Teil 9 des Sensors 8 und die Beleuchtung nach oben gerichtet.In the embodiment described above, the recess or bore 6 is arranged in the hold-down device 2 . Of course, it is also possible within the scope of the invention to provide the recess or drilling 6 with the viewing slit 13 in the die 3 . In this case, the image-receiving part 9 of the sensor 8 and the illumination are directed upwards.
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19712664A DE19712664A1 (en) | 1997-03-26 | 1997-03-26 | Deep drawing press |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19712664A DE19712664A1 (en) | 1997-03-26 | 1997-03-26 | Deep drawing press |
Publications (1)
Publication Number | Publication Date |
---|---|
DE19712664A1 true DE19712664A1 (en) | 1998-04-30 |
Family
ID=7824661
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19712664A Withdrawn DE19712664A1 (en) | 1997-03-26 | 1997-03-26 | Deep drawing press |
Country Status (1)
Country | Link |
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DE (1) | DE19712664A1 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10329898B4 (en) * | 2003-07-03 | 2006-09-28 | Thyssenkrupp Steel Ag | Method and apparatus for forming sheet metal blanks |
EP2036707A2 (en) | 2007-09-13 | 2009-03-18 | Fette GmbH | Optical monitoring device for rotary presses |
DE102012007995A1 (en) * | 2012-04-20 | 2013-10-24 | GM Global Technology Operations LLC (n.d. Ges. d. Staates Delaware) | Detecting device for use in deep-drawing tool to detect metal sheet feeder during deep-drawing process, has semiconductor optical sensor receiving light in direction vertical to direction of position changes in detection area |
EP2762245A1 (en) * | 2013-02-01 | 2014-08-06 | Volkswagen AG | Method for forming a sheet metal material with local influence of the material flow by targeted splitting of the sheet metal material, as well as a splitting device and forming tool for carrying out the method |
DE102014214201A1 (en) * | 2014-07-22 | 2016-01-28 | Bayerische Motoren Werke Aktiengesellschaft | Press line with camera device for process monitoring and process for the production of sheet metal parts |
CN107175280A (en) * | 2017-07-06 | 2017-09-19 | 浙江晶通塑胶有限公司 | Automatic alignment decompressor |
DE202017103894U1 (en) | 2017-06-29 | 2018-10-16 | Forschungsgesellschaft Umformtechnik Mbh | Device for regulating the deep-drawing process during the press stroke |
DE102017114596A1 (en) | 2017-06-29 | 2019-01-03 | Forschungsgesellschaft Umformtechnik Mbh | Method and device for regulating the deep-drawing process during the press stroke |
DE102019205464B3 (en) * | 2019-04-16 | 2020-09-24 | Volkswagen Aktiengesellschaft | Method for determining the sheet infeed in a sheet metal forming tool, as well as press-bound deep-drawing tool and method for regulating a deep-drawing process |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4338828C2 (en) * | 1993-11-13 | 1996-01-25 | Daimler Benz Ag | Process for operating drawing presses and drawing press suitable therefor |
DE4444661A1 (en) * | 1994-12-15 | 1996-06-20 | Korneffel Burghard Dr Rer Nat | Contact free speed measurement method for e.g. conveyor belt or road |
-
1997
- 1997-03-26 DE DE19712664A patent/DE19712664A1/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4338828C2 (en) * | 1993-11-13 | 1996-01-25 | Daimler Benz Ag | Process for operating drawing presses and drawing press suitable therefor |
DE4444661A1 (en) * | 1994-12-15 | 1996-06-20 | Korneffel Burghard Dr Rer Nat | Contact free speed measurement method for e.g. conveyor belt or road |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10329898B4 (en) * | 2003-07-03 | 2006-09-28 | Thyssenkrupp Steel Ag | Method and apparatus for forming sheet metal blanks |
EP2036707A2 (en) | 2007-09-13 | 2009-03-18 | Fette GmbH | Optical monitoring device for rotary presses |
EP2036707A3 (en) * | 2007-09-13 | 2011-03-16 | Fette GmbH | Optical monitoring device for rotary presses |
DE102012007995A1 (en) * | 2012-04-20 | 2013-10-24 | GM Global Technology Operations LLC (n.d. Ges. d. Staates Delaware) | Detecting device for use in deep-drawing tool to detect metal sheet feeder during deep-drawing process, has semiconductor optical sensor receiving light in direction vertical to direction of position changes in detection area |
DE102013001723B4 (en) * | 2013-02-01 | 2016-08-25 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Method for forming a sheet material with local influencing of the material flow by targeted separation of the sheet material, as well as separation device and forming tool for performing the method |
EP2762245A1 (en) * | 2013-02-01 | 2014-08-06 | Volkswagen AG | Method for forming a sheet metal material with local influence of the material flow by targeted splitting of the sheet metal material, as well as a splitting device and forming tool for carrying out the method |
DE102013001723A1 (en) * | 2013-02-01 | 2014-08-07 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Method for forming a sheet material with local influencing of the material flow by targeted separation of the sheet material, as well as separation device and forming tool for performing the method |
DE102014214201A1 (en) * | 2014-07-22 | 2016-01-28 | Bayerische Motoren Werke Aktiengesellschaft | Press line with camera device for process monitoring and process for the production of sheet metal parts |
DE202017103894U1 (en) | 2017-06-29 | 2018-10-16 | Forschungsgesellschaft Umformtechnik Mbh | Device for regulating the deep-drawing process during the press stroke |
DE102017114596A1 (en) | 2017-06-29 | 2019-01-03 | Forschungsgesellschaft Umformtechnik Mbh | Method and device for regulating the deep-drawing process during the press stroke |
DE102017114596B4 (en) * | 2017-06-29 | 2020-10-01 | Forschungsgesellschaft Umformtechnik Mbh | Method and device for regulating the deep-drawing process of a blank during a press stroke |
CN107175280A (en) * | 2017-07-06 | 2017-09-19 | 浙江晶通塑胶有限公司 | Automatic alignment decompressor |
CN107175280B (en) * | 2017-07-06 | 2023-07-21 | 浙江晶通新材料集团有限公司 | Automatic alignment stamping device |
DE102019205464B3 (en) * | 2019-04-16 | 2020-09-24 | Volkswagen Aktiengesellschaft | Method for determining the sheet infeed in a sheet metal forming tool, as well as press-bound deep-drawing tool and method for regulating a deep-drawing process |
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Legal Events
Date | Code | Title | Description |
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OAV | Applicant agreed to the publication of the unexamined application as to paragraph 31 lit. 2 z1 | ||
OP8 | Request for examination as to paragraph 44 patent law | ||
8127 | New person/name/address of the applicant |
Owner name: DAIMLERCHRYSLER AG, 70567 STUTTGART, DE |
|
8139 | Disposal/non-payment of the annual fee |