EP1670600A1 - Walzwerksantrieb mit einer ein- und entkoppeleinrichtung - Google Patents
Walzwerksantrieb mit einer ein- und entkoppeleinrichtungInfo
- Publication number
- EP1670600A1 EP1670600A1 EP04764645A EP04764645A EP1670600A1 EP 1670600 A1 EP1670600 A1 EP 1670600A1 EP 04764645 A EP04764645 A EP 04764645A EP 04764645 A EP04764645 A EP 04764645A EP 1670600 A1 EP1670600 A1 EP 1670600A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- coupling
- locking element
- rolling mill
- spindle
- locking
- 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
- 230000008878 coupling Effects 0.000 title claims abstract description 106
- 238000010168 coupling process Methods 0.000 title claims abstract description 106
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 106
- 238000005096 rolling process Methods 0.000 title claims abstract description 24
- 238000006073 displacement reaction Methods 0.000 claims description 30
- 230000001360 synchronised effect Effects 0.000 claims description 7
- 230000008859 change Effects 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B35/00—Drives for metal-rolling mills, e.g. hydraulic drives
- B21B35/14—Couplings, driving spindles, or spindle carriers specially adapted for, or specially arranged in, metal-rolling mills
- B21B35/141—Rigid spindle couplings, e.g. coupling boxes placed on roll necks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B35/00—Drives for metal-rolling mills, e.g. hydraulic drives
- B21B35/14—Couplings, driving spindles, or spindle carriers specially adapted for, or specially arranged in, metal-rolling mills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B35/00—Drives for metal-rolling mills, e.g. hydraulic drives
- B21B35/14—Couplings, driving spindles, or spindle carriers specially adapted for, or specially arranged in, metal-rolling mills
- B21B35/148—Spindle carriers or balancers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S464/00—Rotary shafts, gudgeons, housings, and flexible couplings for rotary shafts
- Y10S464/901—Rapid attachment or release
Definitions
- the invention relates to a rolling mill drive with drive spindles arranged between drive units and driven rollers, which end in spindle heads, wherein in each case one spindle head is detachably connected to the trunnion of a roller, in particular a work roller, with an on between the roller trunnion and the spindle head of the drive spindle - And decoupling device is arranged.
- the work rolls used in mill stands are driven by electric motors either directly or via back-up or intermediate rolls, with the drive torque being transmitted to the height-adjustable rolls via drive spindles in order to compensate for the angular misalignments caused by different roll strip thicknesses.
- the drive spindles can be formed by cardan shafts or toothed spindles and enable length compensation in the axial direction.
- Comb roller gearboxes or twin drive gearboxes are usually interposed between the drive motors and the drive spindles. While the rolling operation is running, the work rolls are exposed to high mechanical loads and have to be replaced frequently due to the ongoing rolling program change.
- a possible embodiment of a coupling and decoupling device used on rolling mill drives is a ring bayonet lock, as shown and described in EP-B 0324 978 or DE-A 40 35 941.
- the bayonet lock consists of a locking pin and an externally toothed locking wheel which can be rotated relative to the locking pin and which is of a also a toothing adjusting device can be positioned relative to the locking pin such that the teeth lying opposite one another in an operating position on the locking pin and on the locking wheel are in a tooth-to-gap position in a release position and thus a separation of the components is possible.
- Disadvantages of these designs are the high manufacturing effort for the gears and the high demands on the manufacturing tolerances of all components.
- a locking device for a releasable connection between a drive spindle and a roll neck in a rolling mill is also already known.
- a spring-loaded locking latch automatically engages in a recess in the shaft journal when the shaft journal is inserted into a coupling sleeve and forms a play-free connection.
- the locking bolt engages in this recess at an angle of 45 ° to 55 ° to the shaft axis and enables the opposite decoupling process in the event of a counter-movement to the coupling direction along oblique guide surfaces.
- a radially displaceable securing bolt which is held in a locking position under spring load, prevents the connection from being automatically uncoupled. By engaging from the outside, for which a separate opening tool is necessary, the securing bolt can be moved into a release position, after which the withdrawal movement of the driven rollers initiates a separation from the drive shaft.
- a major disadvantage of this solution is that two locking devices offset by 180 ° to one another must be arranged in order to avoid imbalances in the drive system, or special balancing is necessary.
- this solution consists of many individual parts and therefore has a high manufacturing cost.
- Detachable couplings with radially displaceable locking bolts for the fixed connection of a sleeve on a shaft are known for example from US-A 4,392,759 and US-A 3,926,532.
- locking bolts arranged radially in a sleeve engage in an annular groove against a spring force a spline shaft and thus secure the connection between the shaft and sleeve.
- the locking bolts are held in this locking position by an axially displaceable locking sleeve against a spring force. Since this is a simple device to be operated by hand with a rotating sliding sleeve for comparatively low loads, this device is not suitable for problem-free use in rolling mills.
- US-A 3,926,532 shows an embodiment of a coupling that is largely the same in construction, in which the locking sleeve can be brought into a release position against a spring force by a rotational movement in the circumferential direction.
- the object of the present invention is therefore to propose a rolling mill drive with a coupling and decoupling device which is characterized by a simple construction of the individual components in terms of production technology and their ease of assembly with high operational reliability and low maintenance requirements.
- the coupling and decoupling device consists of a coupling sleeve, a coupling pin releasably inserted into the coupling sleeve and a locking element which is displaceable transversely to the axis of rotation of the roller journal, inserted into the coupling sleeve and engaging behind the coupling pin in an operating position, and the locking element can be coupled to a displacement device.
- the design of the locking element as a component that can be moved from the outside in the radial direction between a fixed operating position and an open mounting position enables a manufacturing-technically simple construction of this locking element and the bores necessary for the insertion of the locking element in the coupling sleeve, as well as a problem-free, tilt-free and largely tolerance-insensitive Loosen the heavy components when changing the roller.
- the coupling pin has a base plate for fastening at the end to the roller trunnion, and a coupling hook with at least one locking surface projects from this base plate, that a longitudinal groove with at least one counter-locking surface is milled into the locking element and the longitudinal groove for insertion and execute of the coupling hook has a coupling opening at one point so that the locking element for releasing and connecting the coupling and decoupling device to the displacement device can be brought into a release position, in which the coupling opening in the locking element is aligned with the coupling hook and the locking element can be brought into an operating position which is opposite the locking surface on the coupling hook of the counter-locking surface on the locking element.
- the coupling hook is T-shaped and the locking element has a T-shaped longitudinal groove.
- the head piece of the locking hook for example, with a cylindrical shape and, accordingly, to equip the locking element with a longitudinal groove with a cylindrical cross section.
- a favorable arrangement of the components results when the axis of rotation of the roller journal, the axis of rotation of the coupling pin, the axis of rotation of the coupling sleeve and the spindle head are arranged in alignment with one another and the longitudinal axis of the locking element is oriented transversely to this axis of rotation and intersects it.
- This configuration is also characterized by simple manufacture.
- the locking element has a circular cylindrical outer contour and is inserted in a radially aligned, circular cylindrical bore, preferably a blind hole, in the coupling sleeve.
- a prestressed tension spring is installed between the locking element and a fixed stop on the coupling sleeve in order to automatically fix the operating position and to reliably avoid unintentional opening of this lock.
- a receptacle for a displacement device is arranged on at least one side of the locking element.
- the spigot of the locking element is equipped with a support surface on which a May support the counter support surface of a shiftable pressing device.
- the displacement device comprises a pressure medium cylinder, preferably a standard hydraulic cylinder.
- the coupling sleeve has a circumferential annular groove, this annular groove lies opposite at least one supporting surface of a spindle support and this at least one supporting surface is designed to be engageable with the annular groove to support the coupling sleeve and additionally the displacement device for the locking element for securing a synchronous movement of the displacement device and the support surface of the spindle support is connected to the locking element.
- This synchronous movement can be achieved on the one hand by rigidly attaching the displacement device to the displaceable spindle support and, on the other hand, by connecting the displacement device and the support surfaces of the spindle support to a controller, preferably a synchronous control, for synchronizing their movement sequence.
- FIG. 1 is a schematic representation of a rolling mill drive with motors, drive spindles and roll stand.
- 2 shows a longitudinal section through a coupling and decoupling device according to the invention
- FIG. 3a shows the coupling and decoupling device in the open position of the locking element in a section along the line A -A in FIG. 2
- FIG. 3b shows the coupling and decoupling device in FIG the locked position of the locking element in a section along the line A -A in Fig. 2
- Fig. 4 shows a cross section through the coupling sleeve along the line B - B in Fig.
- Fig. 5 is a schematic plan view of the coupling and decoupling device with the spindle supports.
- Fig. 1 shows a schematic representation of a duo mill stand 1 with two driven rolls 2, 3, which are used in the exemplary embodiment described as work rolls and of which at least one of the rolls, usually the upper roll 2, for adaptation to different rolling stock thicknesses in the stand 4, 5 is supported adjustable in height.
- Electric motors are provided as the drive units 6, by which the drive torque is transmitted to the trunnions 9, 10 of the rollers via drive spindles 7, 8 designed as cardan shafts or toothed spindles.
- the drive spindles 7, 8 are telescopic and take up axial changes in length which result on the one hand from the different height of the upper roller 2 and on the other hand due to the shifting of the work rolls during the rolling in the axial direction.
- the drive spindles 7, 8 end on both sides in spindle heads 11, 12, which permit different inclined positions of the cardan shafts as a result of the roller height adjustment and displacements of the work rollers in the axial direction.
- a roll change requires a quick mechanized uncoupling of the rolls 2, 3 from the drive unit 6. This is achieved by a coupling and decoupling device 13, which connects the trunnion 9, 10 of a roll with the spindle head 11 of a drive spindle 7, 8 in an easily detachable manner.
- the drive spindles 7, 8 and the associated coupling and decoupling device 13 are supported in their operating position with a retractable spindle support 16 and kept in alignment with the roll axis of rotation 14, 15 ,
- a displacement device 17 for actuating the coupling and uncoupling device 13 is displaced into an operating position, then the actuation of the displacement device 17 sets the release position necessary for the uncoupling process and the rollers 2, 3 are removed from the roll stand 1 with the aid of a roller change carriage, not shown.
- the quickly releasable coupling and uncoupling device 13 is shown in detail in a longitudinal section in FIG. It essentially consists of a coupling pin 21, a coupling sleeve 22 and a locking element 23.
- the coupling pin 21 is aligned with the trunnion 9 of the roller 2, 3 and has a base plate 24 via which it is screwed to the trunnion 9 on the end face.
- a T-shaped coupling hook 25 protrudes from the base plate 24 and is embedded in a T-shaped longitudinal groove 26 of a displaceable locking element 23.
- the coupling pin 21 forms on the coupling hook 25 in a normal plane to its longitudinal axis 27 two locking surfaces 28, 29 which, in the locked position of the coupling and uncoupling device 13, face opposite locking surfaces 30, 31 in the T-shaped longitudinal groove 26 of the locking element 23.
- the locking element 23, which is cylindrical in its outer contour, is inserted in the coupling sleeve 22 normal to the axis of rotation 32 of the coupling sleeve in a blind hole 33, the longitudinal axis 34 of the locking element 23 intersecting the axis of rotation of the coupling sleeve.
- the locking element 23 is arranged in the blind hole 33 so as to be longitudinally displaceable and can be moved from the always automatically locked operating position into an unlocked release position by the displacement device 17.
- a T-shaped longitudinal groove 26 is milled into the locking element 23 for receiving the T-shaped coupling hook 25, the portion 35 of the locking element 23 engaging behind the coupling hook having a coupling opening 37 in the release position corresponding to the longitudinal extent 36 of the locking surface 28, to be able to carry out the coupling and uncoupling process, ie to be able to insert the coupling hook 25 into the T-shaped longitudinal groove 26 of the locking element 23.
- the unlocked release position is shown in Fig. 3a and the locked operating position is illustrated in Fig. 3b.
- the locking element 23 is brought into the release position by the displacement device 17a shown in FIG. 5 against a spring force (arrow direction) applied by a tension spring 38, in which the coupling hook 25 opposite the dome opening 37 in the T-shaped longitudinal groove 26 of the locking element 23 and thus the coupling hook 25 releases access to the T-shaped longitudinal groove 26.
- the release position is defined by the end face 40 of the displaced locking element 23 on the bottom surface 41 of the blind hole 33 in the coupling sleeve 22.
- the bottom surface 41 acts as a position-determining stop.
- the locked operating position shown in FIG. 3b is achieved by moving the locking element 23 with the displacement device 17b shown in FIG. 5 in the direction of action of the spring force (arrow direction) until the support surface 42 of the support ring 43 bears against the counter support surface 44 of the coupling sleeve 22 , This is done either by releasing the spring force or by the displacement device 17 itself if the spring force is not sufficient for resetting.
- the locking element remains securely in this operating position under the action of the biasing force of the tension spring 38.
- this preferably ensures automatic locking of the coupling and decoupling device 13 without actuating the displacement device 17.
- the displacement path 45 between the release position and the operating position corresponds at least to the longitudinal extent of the locking surface 36 in order to ensure complete support of the locking surface of the coupling hook 25 on the counter-locking surface 30, 31 of the T-shaped longitudinal groove 26.
- Lubricant lines 46 are arranged in the locking element 23, through which lubricants can be conveyed to the contact surface 47 between the locking element 23 and the coupling sleeve 22. This ensures the secure return of the locking element 23 to the stationary operating position at all times.
- the coupling sleeve 22 must transmit the drive torque from the drive unit 6 to the roller journal.
- the coupling sleeve 22 in a length section of the coupling sleeve 22, in which the coupling sleeve engages around the trunnion 9, guide strips 51 screwed into the wall of the receiving bore 50 with the coupling sleeve are inserted, the supporting surfaces 52 of which interact positively with flats on the trunnion 9 (FIG. 4).
- these support surfaces 52 allow the coupling hook 25 to be centered Locking element 23 with respect to the angular position of these components to each other when threading the coupling hook into the T-shaped longitudinal groove 26.
- a circumferential annular groove 54 is provided on the outer jacket 53 of the coupling sleeve, into which several Support surfaces 55 of an adjustable spindle support 16 engage and stabilize the position of the coupling sleeve 22 during the roll change.
- each spindle support 16 comprises an actuator 57, which is preferably formed by a pressure medium cylinder, in order to bring support surfaces 55 of movable support claws 58 into contact with the coupling sleeve 22 in order to fix its position during the roll change. These support surfaces 55 engage in the circumferential annular groove 54 of the coupling sleeve.
- two opposite and horizontally acting spindle supports 16 are attached to the roller stand 5 in brackets 59.
- the displacement devices 17a, 17b for the locking element 23 are fastened in a support bracket 61, which are thereby actuated synchronously with the support surfaces 55 of the spindle support 16.
- each displacement device is equipped with a positioning unit designed as a pressure medium cylinder 62 for displacing the locking element 23 between an operating position and a release position.
- spindle support and the shifting device separately from one another on the roller stand and to actuate the spindle support and the shifting device independently of one another via separate actuators or via a synchronous control.
- the locking element is inserted axially displaceably in a through hole passing through the coupling sleeve.
- the locking element is configured at both ends with connections for displacement devices which can be brought into engagement with the locking element at the same time and move the locking element in a synchronous movement from an operating position to a release position and back. This is a return of the locking element in the locked Operating position and thus the operational safety guaranteed even when the locking element is jammed due to contamination.
- the invention is also not limited to a duo roll stand, as described in the exemplary embodiment, but can generally be used in roll stands, such as three, four, six and multiple roll stands, regardless of the cross section and material of the material to be rolled.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
- Crushing And Grinding (AREA)
- Treatment Of Fiber Materials (AREA)
- Friction Gearing (AREA)
- Preliminary Treatment Of Fibers (AREA)
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0153903A AT413083B (de) | 2003-09-29 | 2003-09-29 | Walzwerksantrieb mit einer ein- und entkoppeleinrichtung |
PCT/EP2004/009679 WO2005039791A1 (de) | 2003-09-29 | 2004-08-31 | Walzwerksantrieb mit einer ein- und entkoppeleinrichtung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1670600A1 true EP1670600A1 (de) | 2006-06-21 |
EP1670600B1 EP1670600B1 (de) | 2007-11-14 |
Family
ID=34427300
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04764645A Expired - Lifetime EP1670600B1 (de) | 2003-09-29 | 2004-08-31 | Walzwerksantrieb mit einer ein- und entkoppeleinrichtung |
Country Status (5)
Country | Link |
---|---|
US (1) | US7337643B2 (de) |
EP (1) | EP1670600B1 (de) |
AT (2) | AT413083B (de) |
DE (1) | DE502004005526D1 (de) |
WO (1) | WO2005039791A1 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005022440A1 (de) * | 2005-05-14 | 2006-11-16 | Sms Demag Ag | Vorrichtung zur Drehverriegelung einer, in den Ständerfenstern von Walzgerüsten in Lagereinbaustücken lagernden Walzwerkswalze |
AT514341B1 (de) * | 2013-05-17 | 2015-10-15 | Haas Food Equipment Gmbh | Wellenkupplung für eine Walzenanordnung |
CN105195517B (zh) * | 2015-09-21 | 2017-04-19 | 山东钢铁股份有限公司 | 无传动间隙的快装快卸轧辊轴套 |
DE102019205567A1 (de) * | 2019-04-17 | 2020-10-22 | Robert Bosch Gmbh | Steckverzahnung mit kreis- oder ringförmigen Federelementen |
CN110695095A (zh) * | 2019-10-30 | 2020-01-17 | 天津市中重科技工程有限公司 | 一种三辊轧机接轴托架装置 |
CN113369311A (zh) * | 2021-06-29 | 2021-09-10 | 中国重型机械研究院股份公司 | 一种轧机传动轴轴头快速高精度自定位装置 |
DE102022119330A1 (de) * | 2022-08-02 | 2024-02-08 | Voith Patent Gmbh | Walzwerksanordnung zur Übertragung hoher Drehmomente |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3126722A (en) * | 1964-03-31 | Coupling | ||
US2420573A (en) * | 1943-10-22 | 1947-05-13 | Carnegie Illinois Steel Corp | Metal rolling mill universal spindle coupling |
US2618941A (en) * | 1949-11-25 | 1952-11-25 | Mesta Machine Co | Universal driving connection |
US2697335A (en) * | 1951-06-11 | 1954-12-21 | Birdsboro Steel Foundry & Mach | Rolling mill spindle and coupling |
GB1114703A (en) * | 1964-08-10 | 1968-05-22 | United Eng Foundry Co | Coupling |
DE1810941A1 (de) * | 1968-11-26 | 1970-06-11 | Siemag Siegener Maschb Gmbh | Walzwerkswalze,insbesondere fliegend gelagerte Kaliberwalze fuer Drahtwalzwerke |
US3673816A (en) * | 1971-03-05 | 1972-07-04 | Jones & Laughlin Steel Corp | Coupling arrangement |
US3779037A (en) * | 1972-05-08 | 1973-12-18 | Mesta Machine Co | Coupling for mill rolls |
US3926532A (en) * | 1974-08-05 | 1975-12-16 | Safeguard Automotive Corp | Quick releasable coupling |
US4094179A (en) * | 1977-04-19 | 1978-06-13 | Koyo Seiko Company Limited | Driving device for high speed rolling mills and the like |
JPS5528324Y2 (de) * | 1977-05-19 | 1980-07-07 | ||
NL167869C (nl) * | 1978-10-10 | 1982-02-16 | Estel Hoogovens Bv | Walskoppeling. |
DE2932895C2 (de) * | 1979-08-14 | 1984-04-19 | Kunz Maschinen- und Apparatebau GmbH, 7850 Lörrach | Vorrichtung zum Kuppeln eines Wickelstabes o.dgl. mit einer Mitnehmerwelle |
US4392759A (en) * | 1981-02-09 | 1983-07-12 | General Electric Company | Quick disconnect mechanism for shafts |
DE3801749A1 (de) * | 1988-01-22 | 1989-07-27 | Schloemann Siemag Ag | Walzwerksantrieb mit zwischen kammwalzen und arbeitswalzen loesbar angeordneten gelenkspindeln |
DE4035941A1 (de) | 1990-11-12 | 1992-05-14 | Schloemann Siemag Ag | Walzwerksantrieb |
DE4410306C1 (de) | 1994-03-25 | 1995-07-13 | Gkn Gelenkwellenbau Gmbh | Kupplung zur Verbindung einer Kupplungshülse mit einem Kupplungszapfen |
JPH08226452A (ja) | 1995-02-22 | 1996-09-03 | Koyo Seiko Co Ltd | 軸連結機構 |
DE10158711A1 (de) * | 2001-11-29 | 2003-06-26 | Sms Meer Gmbh | Vorrichtung zur lösbaren Verriegelung der Walzenzapfen mit einer, auf diese auf- und abschiebbaren Antriebskupplungsmuffe |
-
2003
- 2003-09-29 AT AT0153903A patent/AT413083B/de not_active IP Right Cessation
-
2004
- 2004-08-31 DE DE502004005526T patent/DE502004005526D1/de not_active Expired - Lifetime
- 2004-08-31 US US10/573,605 patent/US7337643B2/en not_active Expired - Lifetime
- 2004-08-31 AT AT04764645T patent/ATE378119T1/de not_active IP Right Cessation
- 2004-08-31 EP EP04764645A patent/EP1670600B1/de not_active Expired - Lifetime
- 2004-08-31 WO PCT/EP2004/009679 patent/WO2005039791A1/de active IP Right Grant
Non-Patent Citations (1)
Title |
---|
See references of WO2005039791A1 * |
Also Published As
Publication number | Publication date |
---|---|
AT413083B (de) | 2005-11-15 |
DE502004005526D1 (de) | 2007-12-27 |
ATE378119T1 (de) | 2007-11-15 |
US20070271984A1 (en) | 2007-11-29 |
US7337643B2 (en) | 2008-03-04 |
ATA15392003A (de) | 2005-04-15 |
EP1670600B1 (de) | 2007-11-14 |
WO2005039791A1 (de) | 2005-05-06 |
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