EP1596012A3 - Fluid pressure operated arrangement - Google Patents

Fluid pressure operated arrangement Download PDF

Info

Publication number
EP1596012A3
EP1596012A3 EP05103295A EP05103295A EP1596012A3 EP 1596012 A3 EP1596012 A3 EP 1596012A3 EP 05103295 A EP05103295 A EP 05103295A EP 05103295 A EP05103295 A EP 05103295A EP 1596012 A3 EP1596012 A3 EP 1596012A3
Authority
EP
European Patent Office
Prior art keywords
line
connection
fluid pressure
pressure operated
operated arrangement
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Withdrawn
Application number
EP05103295A
Other languages
German (de)
French (fr)
Other versions
EP1596012A2 (en
Inventor
Benoît Deschamps
Philippe Ostermann
Laurent Perrin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Deere and Co
Original Assignee
Deere and Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Deere and Co filed Critical Deere and Co
Publication of EP1596012A2 publication Critical patent/EP1596012A2/en
Publication of EP1596012A3 publication Critical patent/EP1596012A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
    • E02F9/2267—Valves or distributors
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
    • E02F3/422—Drive systems for bucket-arms, front-end loaders, dumpers or the like
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
    • E02F9/2271—Actuators and supports therefor and protection therefor
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
    • E02F9/2275—Hoses and supports therefor and protection therefor
    • 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
    • F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
    • F15B1/02—Installations or systems with accumulators
    • F15B1/021—Installations or systems with accumulators used for damping
    • 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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/003—Systems with load-holding valves
    • 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
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/149—Fluid interconnections, e.g. fluid connectors, passages
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/2053—Type of pump
    • F15B2211/20538—Type of pump constant capacity
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/30505—Non-return valves, i.e. check valves
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/30525—Directional control valves, e.g. 4/3-directional control valve
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/31—Directional control characterised by the positions of the valve element
    • F15B2211/3105—Neutral or centre positions
    • F15B2211/3111—Neutral or centre positions the pump port being closed in the centre position, e.g. so-called closed centre
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/31—Directional control characterised by the positions of the valve element
    • F15B2211/3144—Directional control characterised by the positions of the valve element the positions being continuously variable, e.g. as realised by proportional valves
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/315—Directional control characterised by the connections of the valve or valves in the circuit
    • F15B2211/3157—Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source, an output member and a return line
    • F15B2211/31576—Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source, an output member and a return line having a single pressure source and a single output member
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/32—Directional control characterised by the type of actuation
    • F15B2211/327—Directional control characterised by the type of actuation electrically or electronically
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/45—Control of bleed-off flow, e.g. control of bypass flow to the return line
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/50—Pressure control
    • F15B2211/505—Pressure control characterised by the type of pressure control means
    • F15B2211/50563—Pressure control characterised by the type of pressure control means the pressure control means controlling a differential pressure
    • F15B2211/50581—Pressure control characterised by the type of pressure control means the pressure control means controlling a differential pressure using counterbalance valves
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/50—Pressure control
    • F15B2211/515—Pressure control characterised by the connections of the pressure control means in the circuit
    • F15B2211/5153—Pressure control characterised by the connections of the pressure control means in the circuit being connected to an output member and a directional control valve
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/50—Pressure control
    • F15B2211/52—Pressure control characterised by the type of actuation
    • F15B2211/528—Pressure control characterised by the type of actuation actuated by fluid pressure
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/50—Pressure control
    • F15B2211/55—Pressure control for limiting a pressure up to a maximum pressure, e.g. by using a pressure relief valve
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/625—Accumulators

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Actuator (AREA)

Abstract

Es wird eine druckmittelbetriebene Anordnung mit wenigstens einem um eine Schwenkachse (46) schwenkbar angelenkten Aktuator (36, 37), wenigstens einer Leitung (64) und wenigstens einem mit dem Aktuator (36, 37) verbundenen oder verbindbaren Anschlussteil (66) vorgeschlagen. Um auf flexible Leitungen verzichten zu können, wird vorgeschlagen, dass die Leitung (64) und das Anschlussteil (66) um die Schwenkachse (46) zueinander verschwenkbar verbindbar sind. Die Verbindung erfolgt mit einem Verbindungsmittel (68) welches zwischen Leitung (64) und Anschlussteil (66) angeordnet ist, wobei das Anschlussteil (66) und/oder die Leitung (64) als starres Bauteil oder als starre Leitung, insbesondere als Rohr ausgebildet sind. Vorzugsweise ist das Verbindungsmittel (68) als Schwenkverbindung ausgebildet.

Figure imgaf001
A pressure-medium-operated arrangement with at least one actuator (36, 37) pivotable about a pivot axis (46), at least one line (64) and at least one connection part (66) connected or connectable to the actuator (36, 37) is proposed. In order to dispense with flexible lines, it is proposed that the line (64) and the connecting part (66) about the pivot axis (46) are pivotally connected to each other. The connection is made with a connection means (68) which is arranged between line (64) and connection part (66), wherein the connection part (66) and / or the line (64) are formed as a rigid component or as a rigid line, in particular as a tube , Preferably, the connecting means (68) is designed as a pivot connection.
Figure imgaf001
EP05103295A 2004-05-11 2005-04-22 Fluid pressure operated arrangement Withdrawn EP1596012A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004023102 2004-05-11
DE102004023102A DE102004023102A1 (en) 2004-05-11 2004-05-11 Pressure medium operated arrangement

Publications (2)

Publication Number Publication Date
EP1596012A2 EP1596012A2 (en) 2005-11-16
EP1596012A3 true EP1596012A3 (en) 2007-01-10

Family

ID=34939462

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05103295A Withdrawn EP1596012A3 (en) 2004-05-11 2005-04-22 Fluid pressure operated arrangement

Country Status (3)

Country Link
US (1) US7275475B2 (en)
EP (1) EP1596012A3 (en)
DE (1) DE102004023102A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE533414C2 (en) 2008-09-17 2010-09-21 Parker Hannifin Ab Trunk sensor for a hydraulic device
JP5167054B2 (en) * 2008-09-30 2013-03-21 本田技研工業株式会社 Electric motorcycle
US20120306195A1 (en) * 2011-05-31 2012-12-06 Caterpillar, Inc. High Rotation Linkage Attachment for Hydraulic Lines
CN111059093A (en) * 2019-12-19 2020-04-24 湖北三江航天万山特种车辆有限公司 Compact type vehicle-mounted oil cylinder rotating device

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3678810A (en) * 1970-06-04 1972-07-25 Ltv Electrosystems Inc Rotational coupling
US4767257A (en) * 1985-12-23 1988-08-30 Mitsubishi Denki Kabushiki Kaisha Industrial robot
JPH01177985A (en) * 1987-12-30 1989-07-14 Honda Motor Co Ltd Multi-articulated mechanism
DE9420227U1 (en) * 1994-12-21 1996-04-25 Freimuth Ulrich Sequence control of hydraulic cylinders
JPH08109654A (en) * 1994-10-13 1996-04-30 Sumitomo Constr Mach Co Ltd Piping device for working machine of construction equipment
WO1999039127A1 (en) * 1998-01-28 1999-08-05 Tore Wiklund Pressurized, closed lubrication and hydraulic oil system
JP2000170197A (en) * 1998-12-09 2000-06-20 Yanmar Agricult Equip Co Ltd Front loader
US20010024003A1 (en) * 2000-03-23 2001-09-27 Gerhard Huber Actuation arrangement for movable components on vehicles
US20020062587A1 (en) * 2000-11-29 2002-05-30 Komatsu Ltd. Hydraulically driven type working machine

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3327880A (en) * 1965-08-09 1967-06-27 Baldwin Lima Hamilton Corp Front end loader
DE2042437A1 (en) * 1970-08-27 1972-04-06 Carl Metz GmbH, 7500 Karlruhe West Device for supplying flussi gene and / or gaseous working media and electrical current through a rotary leadthrough
DE2600459B2 (en) * 1976-01-08 1978-04-27 Hermann 8952 Marktoberdorf Steinbach Pressure medium operated device for pivoting and / or lifting an output element
DE8214246U1 (en) * 1982-05-15 1983-02-17 Lindner, Johann, 8882 Lauingen Rotary distributor for the rotary feed-through of flowing media
DE8702088U1 (en) * 1987-02-11 1987-04-02 Kloeckner-Humboldt-Deutz Ag Zweigniederlassung Fahr, 7702 Gottmadingen, De
DE3812363C2 (en) * 1987-04-28 1994-07-28 Glyco Antriebstechnik Gmbh Hydrostatic rotary union
DE3725222A1 (en) * 1987-07-30 1989-02-09 Hausherr & Soehne Rudolf Rotary lead-through
DE3900939A1 (en) * 1989-01-14 1990-07-19 Siegfried Pirags Device for supplying air to air-operated units, in particular an air drive for a rail-mounted tractive machine with an air motor
DE4111116C2 (en) * 1991-04-03 1994-11-03 Mannesmann Ag Fluid operated rotary actuator
DE29608422U1 (en) * 1996-05-09 1996-08-01 Hut Reinhard Pressure medium line system for pressure medium-operated, in particular hydraulic, construction machinery
DE19648737C1 (en) 1996-11-25 1998-04-02 Daimler Benz Ag Steering device with hydraulic coupling, in particular for a motor vehicle
DE19732868A1 (en) * 1997-07-30 1999-02-04 Linde Ag Rotary seal for hydrostatic drive
DE10119356B4 (en) * 2001-04-20 2009-12-31 Schunk Gmbh & Co. Kg Spann- Und Greiftechnik Media feed device and swivel unit
DE10225272B4 (en) * 2002-06-07 2005-05-04 Ott-Jakob Gmbh & Co Spanntechnik Kg Rotary union
DE10227966A1 (en) * 2002-06-22 2004-01-08 Deere & Company, Moline Hydraulic control arrangement for a mobile machine

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3678810A (en) * 1970-06-04 1972-07-25 Ltv Electrosystems Inc Rotational coupling
US4767257A (en) * 1985-12-23 1988-08-30 Mitsubishi Denki Kabushiki Kaisha Industrial robot
JPH01177985A (en) * 1987-12-30 1989-07-14 Honda Motor Co Ltd Multi-articulated mechanism
JPH08109654A (en) * 1994-10-13 1996-04-30 Sumitomo Constr Mach Co Ltd Piping device for working machine of construction equipment
DE9420227U1 (en) * 1994-12-21 1996-04-25 Freimuth Ulrich Sequence control of hydraulic cylinders
WO1999039127A1 (en) * 1998-01-28 1999-08-05 Tore Wiklund Pressurized, closed lubrication and hydraulic oil system
JP2000170197A (en) * 1998-12-09 2000-06-20 Yanmar Agricult Equip Co Ltd Front loader
US20010024003A1 (en) * 2000-03-23 2001-09-27 Gerhard Huber Actuation arrangement for movable components on vehicles
US20020062587A1 (en) * 2000-11-29 2002-05-30 Komatsu Ltd. Hydraulically driven type working machine

Also Published As

Publication number Publication date
US7275475B2 (en) 2007-10-02
DE102004023102A1 (en) 2005-12-08
US20050254933A1 (en) 2005-11-17
EP1596012A2 (en) 2005-11-16

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