EP1274945A1 - Arbeitszylinder - Google Patents
ArbeitszylinderInfo
- Publication number
- EP1274945A1 EP1274945A1 EP01917016A EP01917016A EP1274945A1 EP 1274945 A1 EP1274945 A1 EP 1274945A1 EP 01917016 A EP01917016 A EP 01917016A EP 01917016 A EP01917016 A EP 01917016A EP 1274945 A1 EP1274945 A1 EP 1274945A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- control
- working cylinder
- cylinder according
- valve
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/28—Means for indicating the position, e.g. end of stroke
- F15B15/2892—Means for indicating the position, e.g. end of stroke characterised by the attachment means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/202—Externally-operated valves mounted in or on the actuator
Definitions
- the invention relates to a cylinder actuated by fluid power, in particular a pneumatic cylinder.
- Working cylinders which can be actuated by fluid force generally have an elongated cylinder housing, in which a piston which can be displaced by the application of fluid is arranged and which is connected to a piston rod which protrudes from the front side of the cylinder housing.
- control components are arranged on the cylinder housing which cooperate in the control of the fluid loading of the piston.
- These control components contain control electronics fastened in a locking groove as well as valves housed in recesses in the housing cover of the cylinder housing.
- the object of the present invention is to provide a working cylinder of the type mentioned which, despite being directly equipped with control components used for actuation, has compact dimensions.
- a cylinder housing which contains a piston receiving space in which a piston which can be displaced by the application of fluid is arranged and which is coupled in motion with a piston rod which projects on the front side of the cylinder housing,
- control housing attached to the rear of the cylinder housing, which is used to control the fluid striking the piston contains control components, among which there is an electrically actuable valve device and a valve and / or control electronics unit that is involved in the electrical control of the valve device,
- the working cylinder according to the invention can be designed in a very slim design, since the relevant control components are placed in the rear extension of the cylinder housing.
- the shape of the control housing in such a way that its outer contour does not protrude beyond the outer contour of the axially adjoining cylinder housing.
- the valve device and the valve and / or control electronics used for its electrical control are protected in a further housing which is attached to the rear of the cylinder housing and is referred to as the control housing. This also ensures that the relevant components are concentrated in the same place, which considerably simplifies handling during connection and / or maintenance work.
- the actuating fluid is fed in via the fluidic connection means provided on the control housing, the fluid supply to the piston receiving space being effected via fluid channels integrated in the cylinder housing, referred to as control channels, so that no loose fluid lines have to be installed on the circumference of the cylinder housing.
- control housing and the cylinder housing have an at least approximately identical outer contour, it is advantageous if a rectangular outer contour is selected, in particular with a square shape. In this way, the working cylinder can be installed very easily and possibly linked with other equipment.
- sensor means are expediently provided on the cylinder housing, which are used to detect the position of the piston and which are electrically contacted by means of suitable sensor signal conductors which are led into the control housing. There they can be connected to any existing control electronics or can be connected to the electrical connection means via which an external control device can be connected.
- the control housing has, in particular, at least one access opening which is closed by a housing cover which can be removed if necessary in order to gain access to the control components housed in the control housing.
- the access opening is preferably placed on the side of the control housing, it also being possible for there to be a plurality of access openings which are closed by housing covers and are distributed over the circumference of the control housing. In the case of a control housing with a rectangular contour, it makes sense to provide several access openings on differently oriented side surfaces of the control housing.
- a housing cover is designed as a carrier for a valve and / or control electronics which is attached to the inside of the housing cover. is brought.
- the valve and / or control electronics can be made very easily and clearly accessible by removing the housing cover.
- control housing has several access openings distributed over the circumference, an arrangement is recommended, one access opening being opposite the electrical drive means of the valve device and another access opening being arranged in the area of the valve and / or control electronics, the latter in particular in such a way that the Electronics sits directly on the housing cover. In this way, all operationally relevant control components can be made easily accessible if required.
- the control components can include simple valve electronics, which, for example, have a voltage converter circuit or have other components that are necessary or advantageous for actuating the electrical valve device.
- the electrical control signals required for operation can be fed in via the electrical connection means, which can be connected to external control electronics via a connecting cable.
- control electronics in the control housing which expediently contains fieldbus electronics and makes it possible to link the working cylinder to other devices via a bus or to connect it to an external controller.
- the control electronics can also be directly equipped with a control program that causes a predetermined operating sequence of the working cylinder when the control electronics are supplied with external control signals via the electrical connection means.
- control housing it would be possible to design the control housing as an all-round closed body. However, it is much more advantageous and also saves space and material, design the control housing like a pot with a round or polygonal cross-section and attach it to the back of the cylinder housing with the open side opposite the floor. In this way, the cylinder housing itself forms the end of the control housing.
- valve device in the interior defined by the control housing in such a way that when the control housing is mounted it extends between the bottom of the pot-like control housing and the cylinder housing and is also fixed there.
- a positive engagement between the components mentioned can be provided, which in particular also serves to produce channel connections via which the actuating fluid is fed into the valve device and is discharged from the valve device.
- each exhaust air opening can also be equipped with a silencer, in particular with an integrated exhaust air throttle device for specifying the maximum piston speed.
- valve device for example a five-way valve or a four-way valve.
- FIG. 1 shows a first design of the working cylinder according to the invention in a perspective view with a view of the rear
- Fig. 2 is a side view of the working cylinder looking in the direction of arrow II of Fig. 1, partially broken away, and
- FIG. 3 shows the rear end section of the working cylinder equipped with the control housing in a side view with a view according to arrow III from FIG. 2, again partially broken open.
- the working cylinder 1 shown in the drawing could in principle be operated hydraulically, but is particularly suitable for operation with compressed air, so that the following description is based on a design as a pneumatic cylinder.
- the working cylinder 1 has an elongated cylinder housing 2, which is composed of a cylinder tube 3 and a front and a rear housing cover 4, 5.
- the housing covers 4, 5 are attached to the front and rear end faces of the cylinder tube 3 and fixed by fastening means, not shown, for example by screws or tie rods.
- the inside of the cylinder housing 2 defines a piston receiving space 6 that runs in the longitudinal direction. This extends between the two end faces of the cylinder tube 3 and is closed at the end by the housing covers 4, 5.
- Longitudinal axis 7 of the cylinder housing 2 displaceable piston 8, which is equipped with sealing means, not shown, so that it divides the piston receiving space 6 into a front working space 12 facing the front housing cover 4 and a rear working space 13 assigned to the rear housing cover 5.
- a piston rod 14, which is firmly connected to the piston 8, extends from the piston 8 coaxially through the front working space 12 and passes through the front housing cover 4 through a cover opening formed therein to the outside.
- the front end section 16 of the piston rod 14 opposite the piston 8 is thus outside the cylinder housing 2 and is in front of the front housing cover 4. It is equipped with a fastening element, for example a thread, which enables an object to be moved to be fastened.
- the first control channel 17 opens into the front working space 12, the second control channel 18 into the rear working space 13.
- Both control channels 17, 18 open at their ends opposite the respective working space with a first or second control channel connection opening 22, 23 to the rear end face 24 of the cylinder housing 2 facing away from the cylinder tube 3, which at the same time is the correspondingly oriented end face of the rear housing cover 5 is.
- the first control channel 17 only passes through the rear housing cover 5.
- the second control channel 18 runs through the rear housing cover 5, continues in the wall of the cylinder tube 3 surrounding the piston receiving space 6 and finally merges into the front housing cover 4, via which it is connected front working space 12 opens out.
- the orifices of the control channels 17, 18 in the associated working space 12, 13 are preferably located on the end face of the respective housing cover 4, 5 facing the piston receiving space 6.
- the actuating fluid used for operating the working cylinder 1, for example compressed air can be supplied and discharged via the control channels 17, 18.
- the linear movement is indicated by double arrow 25.
- first and second sensor means 26, 27 are provided, which are used to detect the position of the piston 8.
- the sensor means 26, 27 are switches which can be actuated without contact and which respond to a magnetic field.
- This magnetic field is supplied by a permanent magnet device 28 arranged on the piston 8 and preferably in the form of a ring magnet, which moves together with the piston 8 and actuates the sensor means 26, 27 when it is at approximately the same height as the latter.
- the cylinder tube 3 and preferably the entire cylinder housing 2 are made of a material permeable to a magnetic field, in particular of aluminum material.
- the sensor means 26, 27 are held in groove-like longitudinal recesses which are introduced into the outer circumference of the cylinder housing 2 and run in the longitudinal direction thereof. These longitudinal grooves are referred to below as sensor grooves 32.
- the sensor grooves 32 expediently run over the entire length of the cylinder housing 2 and open out on both sides at the end.
- the sensor means 26, 27 are expediently Usually completely inside the sensor grooves 32 and thus do not protrude beyond the outer contour of the cylinder housing 2.
- the sensor means 26, 27 are axially adjustable and infinitely fixable at any longitudinal positions of the sensor grooves 32 in order to be able to detect any piston position.
- the first sensor means 26 are located in the front end region of the cylinder tube 3 and the second sensor means 27 at the rear end region of the cylinder tube 3, so that they respond to the two possible end positions of the piston 8.
- control housing 33 On the back of the cylinder housing 2, a separate housing is attached, which is referred to as the control housing 33, because it contains control components 34 which cooperate in controlling the fluid loading of the piston 8.
- the control housing 33 is attached to the rear end face 24 of the cylinder housing 2 and is held firmly, for example, by a screw connection on the cylinder housing 2.
- screw connection several fastening screws 35 are provided in the exemplary embodiment, which penetrate the control housing 33 and are screwed into associated threaded bores in the cylinder housing 2.
- the outer shape of the control housing 33 is preferably selected such that its outer contour, seen in cross section, does not protrude beyond the outer contour of the axially adjoining cylinder housing 2.
- the laterally oriented outer surfaces of the cylinder housing 2 merge in particular flush into the correspondingly oriented side surfaces of the control housing 33. In this way, a constant, slim outer contour results over the entire length of the working cylinder 1.
- the shape adopted in the exemplary embodiment is recommended, in which the cylinder housing 2 and the control housing 33 have substantially matching rectangular outer contours.
- the square cross-sectional shape shown is optimal.
- the control housing 33 thus also has a total of four lateral outer surfaces 36 pointing to different sides.
- the control housing 33 is hollow and defines in the interior a housing interior 37 in which all of the control components 34 mentioned above are accommodated.
- the control housing is preferably of pot-like design and has a base 38 and a side wall 42 projecting therefrom.
- the housing interior 37 is delimited at one end by the base 38 and on the circumferential side by the side wall 42.
- the control housing 33 is designed without a wall, so that the housing interior 37 is open there. Nevertheless, the housing interior 37 is completely enclosed, since the control housing 33 is attached to the rear end face 24 of the cylinder housing 2 with the open side opposite the base 38.
- the control housing 33 rests with the edge surface 43 of the side wall 42 axially opposite the base 38 on the cylinder housing 2 or on the rear housing cover 5. To achieve a sufficient seal, a seal, not shown, can be interposed.
- an electrically operable valve device 44 In the exemplary embodiment, it contains two control valves 45 with a 3/2-way valve function. One of these control valves 45 is responsible for the fluid supply to one of the working spaces 12, 13. However, it would be possible to use only one control valve instead of two control valves, for example a four-way valve or a five-way valve. The application of fluid to both working spaces 12, 13 could then be controlled simultaneously with only one control valve.
- the valve device 44 is characterized by a particularly simple assembly, since it is held between the rear end face 24 of the cylinder housing 2 and the inner surface 46 of the control housing 33 which is provided on the inside of the base 38 and faces it. The valve device 44 spans the housing interior 37 lying between these surfaces 24, 46.
- each control valve 45 is equipped with at least one plug-in extension 47, which engages in a form-fitting manner in complementary holding openings 49 of the surface 24, 46 in question.
- valve device 34 is not to extend over the entire
- the interior surface 46 of the housing serving as support can also be provided at a different location than the bottom 38 in the interior 37 of the housing.
- fluidic connection means 48 are provided to feed the actuation field.
- they are formed by a single connection device, which is preferably designed as a plug-in connection device and permits the detachable connection of a fluid line coming from a pressure source.
- the fluidic connection means 48 are expediently located on the rear of the control housing 33 facing away from the cylinder housing 2 and thus on the outside on the floor 38.
- the fluidic connection means 48 communicate with a fluid channel arrangement 52 which runs in the wall of the control housing 33 and is connected to the valve device 44.
- the fluid channel arrangement 52 is branched in such a way that the fluidic connection means tel 48 fed operating fluid to both control valves 45 is guided.
- Exhaust air openings 53 are also provided on the rear of the control housing 33 and are also in fluid communication with the valve device 44 via exhaust air ducts 54 running in the wall of the control housing 33. In the exemplary embodiment, each exhaust air opening 53 communicates with one of the two control valves 45.
- valve device 44 or its control valves 45 are connected to the control channels 17, 18, the fluid channel arrangement 52 and the exhaust air channels 54 with the correct assignment. This is advantageously done in the area of the mutually engaging plug-in extensions 47 and holding openings 49. For this purpose, the mouths of the channels running in the cylinder housing 2 or in the control housing 33 are expanded to form the holding openings 49, and the associated valve channels open at the plug-in sets 47.
- the exhaust air is discharged via the exhaust air openings 43, it being possible for the exhaust air to be discharged in fluid lines.
- the exhaust air is delivered directly to the surroundings of the working cylinder 1, with each exhaust air opening 53 being equipped with a silencer 55 in order to reduce the outflow noise, into which an exhaust air throttle device 56 can also be integrated, with which the Exhaust air flow can be throttled to influence the stroke speed of the piston 8.
- the valve device 44 is designed for electrical actuation, each control valve 45 being equipped with at least one electrically activatable valve drive 57.
- the valve drive 57 can be, for example, an electromagnet or a piezo device.
- valve drives 57 receive their actuation signals, which indicate the switching state of the respective control valve 45, from control electronics 58, which are among the control components 34 mentioned above, which are accommodated in the housing interior 37.
- Suitable first electrical signal conductors 62 establish the electrical connection.
- the control electronics 58 are equipped with fieldbus electronics (not shown in any more detail) which communicate with the electrical connection means 63 provided on the outside of the control housing 33, which are used for feeding in electrical control signals.
- fieldbus electronics (not shown in any more detail) which communicate with the electrical connection means 63 provided on the outside of the control housing 33, which are used for feeding in electrical control signals.
- an electrical signal connection to an external electronic control can be created on the electrical connection means 63 via a bus line (not shown in more detail), which provides the control signals for the working cylinder 1, which are forwarded to the valve drives 57 by the control electronics 58 in accordance with the desired assignment.
- the electrical connection means 63 are designed as fieldbus connection means.
- valve electronics In addition to the control electronics 58, there may also be valve electronics (not shown in any more detail) which specify and / or influence certain parameters of the valve actuation.
- the valve electronics can also be designed as part of the control electronics.
- further electrical connection means 64 can be provided on the outside of the control housing 33, which are designed appropriately.
- the valve and / or control electronics 58 are characterized by good accessibility, which greatly facilitates assembly and also possible maintenance work. It is located namely inside the control housing 33 in the area of a first access opening 65 of the control housing 33, which is normally closed by a detachably attached first housing cover 66. After removing the first housing cover 66 from the base body 67 which then remains on the cylinder housing 2, the valve and / or control electronics 58 become accessible.
- valve and / or control electronics 58 in the area of the first access opening 65 in a manner fixed to the main body.
- the valve and / or control electronics 58 can be provided, as shown, on an electronics board 68, which is fixed on the inside of the first housing cover 66, preferably by means of spacers.
- a further, second access opening 72 in the base body 67 of the control housing 33 is located on another lateral outer surface 36 and is releasably closed by a second housing cover 73.
- the arrangement is such that the second access opening 72 is opposite the electric drive means 57 of the valve device 44 and, therefore, when the second housing cover 73 is removed, these electric drive means or valve drives 57 are easily accessible from the outside for connection work.
- the second access opening 72 is preferably provided on a lateral outer surface 36, that of the one directly adjacent to which the first access opening 65 is located.
- a further, third access opening 74 with an assigned third housing cover 75 is located on the lateral outer surface 36 opposite the second access opening 72. It enables direct access to the valve device 44.
- the housing cover can be attached, for example, by screw or snap connections:
- the access openings 65 to the cylinder housing 2 are not limited by the base body 67 of the control housing 33.
- the sensor signal conductors 77 are connected to the control electronics 58, which is thus able to process the sensor signals received and to take them into account when actuating the valve device 44.
- control housing 33 does not contain any separate control electronics, but is merely equipped with simpler valve electronics, the sensor signal conductors 77 are expediently contacted with the electrical connection means 63, so that the sensor signals are forwarded to the connected external electronic control. In principle, however, this is also possible if the control housing 33 is equipped with control electronics 58.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
- Vehicle Body Suspensions (AREA)
- Glass Compositions (AREA)
Description
Claims
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/EP2001/001996 WO2002068828A1 (de) | 2001-02-22 | 2001-02-22 | Arbeitszylinder |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1274945A1 true EP1274945A1 (de) | 2003-01-15 |
EP1274945B1 EP1274945B1 (de) | 2004-09-01 |
Family
ID=8164307
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01917016A Expired - Lifetime EP1274945B1 (de) | 2001-02-22 | 2001-02-22 | Arbeitszylinder |
Country Status (6)
Country | Link |
---|---|
US (1) | US6755115B2 (de) |
EP (1) | EP1274945B1 (de) |
AT (1) | ATE275242T1 (de) |
BR (1) | BR0110179A (de) |
DE (1) | DE50103472D1 (de) |
WO (1) | WO2002068828A1 (de) |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6917515B2 (en) * | 2003-04-28 | 2005-07-12 | Kita Sensor Tech. Co., Ltd. | Electrical component having a housing retained in a receiving groove in a support through a retaining device |
ITBS20030093A1 (it) * | 2003-10-10 | 2005-04-11 | Gimatic Spa | Attrezzo di taglio o di presa con dispositivo per rilevarne il compimento dell'azione. |
DE102004035047B4 (de) * | 2004-07-20 | 2006-06-01 | Samson Ag | Stellungsregelungssystem für ein von einem pneumatischen Stellantrieb betriebenes Stellorgan |
US7401541B2 (en) * | 2004-08-20 | 2008-07-22 | Enfield Technlogies, Llc | Servo-pneumatic actuator |
US7127982B2 (en) * | 2005-03-04 | 2006-10-31 | Festo Corporation | Linear drive with non-rotating piston |
ATE440222T1 (de) * | 2005-04-07 | 2009-09-15 | Luk Lamellen & Kupplungsbau | Elektrohydraulische steuereinrichtung |
DE202005006795U1 (de) * | 2005-04-22 | 2005-07-21 | Festo Ag & Co. | Antriebsvorrichtung mit Stellungsregler |
DE102005038357A1 (de) * | 2005-08-11 | 2007-02-15 | Multivac Sepp Haggenmüller Gmbh & Co. Kg | Verpackungsmaschine mit wenigstens einem Pneumatikantrieb |
EP1967318A1 (de) * | 2007-03-06 | 2008-09-10 | COMAU S.p.A. | Vorrichtung zum Auffinden und Festhalten von Elementen aus gepresstem Blech mit einem zusätzlichen Löcher für Halten Röhre aufweisenden Gehäuse |
JP5004048B2 (ja) * | 2007-07-03 | 2012-08-22 | Smc株式会社 | シリンダ装置 |
CA2675497A1 (en) * | 2009-08-18 | 2011-02-18 | Tcb Welding And Construction Ltd. | Switching assembly for a hydraulic pump jack |
US20140124266A1 (en) * | 2010-09-02 | 2014-05-08 | John M. Birckhead | Magnetically Initiated Actuation Mechanism |
US9909601B2 (en) * | 2010-11-16 | 2018-03-06 | Illinois Tool Works Inc. | Motor control |
DE102012003231B3 (de) * | 2012-02-20 | 2013-03-21 | Festo Ag & Co. Kg | Prozessventil |
US9316237B1 (en) * | 2013-05-29 | 2016-04-19 | Patrick Michael Mullen | Proportional servo hydraulic control valve |
US9441645B2 (en) * | 2013-05-29 | 2016-09-13 | Patrick Michael Mullen | Proportional servo hydraulic control valve |
DE112014004317B4 (de) | 2013-09-19 | 2023-08-24 | Norgren Gmbh | Positionsüberwachungsgerät für einen Linearantrieb |
WO2015119959A1 (en) | 2014-02-05 | 2015-08-13 | Pentair Valves & Controls US LP | Valve controller with flapper nozzle pilot valve |
DE102014226830B4 (de) | 2014-12-22 | 2016-11-24 | Multivac Sepp Haggenmüller Se & Co. Kg | Verpackungsmaschine mit hygienischem Pneumatikzylinder |
GB2561832A (en) * | 2017-04-21 | 2018-10-31 | Eaton Intelligent Power Ltd | Arrangement for working a tube end |
WO2019107617A1 (ko) * | 2017-11-30 | 2019-06-06 | 코리아테스팅 주식회사 | 고성능 하이브리드 서보 엑추에이터 |
DE102019134807B4 (de) | 2019-12-17 | 2023-05-04 | Festo Se & Co. Kg | Aktuator für einen pneumatischen Linearantrieb und Verfahren zur Montage des Aktuators |
US20210324968A1 (en) * | 2020-04-21 | 2021-10-21 | Phaedrus, Llc | Steam injection valve actuator, system, and method |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1000396C2 (de) | 1954-12-27 | 1957-06-19 | Hoechst Ag | Verfahren zur Herstellung von 6-Halogen-3-oxybenzoesaeureestern |
DE3524414C2 (de) | 1985-04-16 | 1994-06-16 | Mannesmann Ag | Linearantrieb |
DE4438164A1 (de) | 1994-10-26 | 1996-05-02 | Festo Kg | Antriebsvorrichtung |
CH691003A5 (fr) * | 1996-08-13 | 2001-03-30 | Parker Lucifer Sa | Tête de commande électro-pneumatique pour actuateurs. |
DE19801433A1 (de) | 1998-01-16 | 1999-07-22 | Sta Co Mettallerzeugnisse Gmbh | Spannvorrichtung |
DE29818075U1 (de) | 1998-10-09 | 1998-12-24 | Kuhnke GmbH, 23714 Malente | Fluidischer Aktuator |
DE29903825U1 (de) * | 1999-03-03 | 1999-05-27 | Festo AG & Co, 73734 Esslingen | Spannvorrichtung |
-
2001
- 2001-02-22 BR BR0110179-0A patent/BR0110179A/pt not_active Application Discontinuation
- 2001-02-22 EP EP01917016A patent/EP1274945B1/de not_active Expired - Lifetime
- 2001-02-22 AT AT01917016T patent/ATE275242T1/de not_active IP Right Cessation
- 2001-02-22 WO PCT/EP2001/001996 patent/WO2002068828A1/de active IP Right Grant
- 2001-02-22 US US10/240,899 patent/US6755115B2/en not_active Expired - Fee Related
- 2001-02-22 DE DE50103472T patent/DE50103472D1/de not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO02068828A1 * |
Also Published As
Publication number | Publication date |
---|---|
US20030047065A1 (en) | 2003-03-13 |
US6755115B2 (en) | 2004-06-29 |
EP1274945B1 (de) | 2004-09-01 |
ATE275242T1 (de) | 2004-09-15 |
DE50103472D1 (de) | 2004-10-07 |
BR0110179A (pt) | 2003-03-05 |
WO2002068828A1 (de) | 2002-09-06 |
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Legal Events
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