EP1623950B1 - Crapple assembly for a hydraulic arm of an working vehicle - Google Patents

Crapple assembly for a hydraulic arm of an working vehicle Download PDF

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Publication number
EP1623950B1
EP1623950B1 EP04018326A EP04018326A EP1623950B1 EP 1623950 B1 EP1623950 B1 EP 1623950B1 EP 04018326 A EP04018326 A EP 04018326A EP 04018326 A EP04018326 A EP 04018326A EP 1623950 B1 EP1623950 B1 EP 1623950B1
Authority
EP
European Patent Office
Prior art keywords
arm
hydraulic
forearm
internal
fluid motor
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.)
Not-in-force
Application number
EP04018326A
Other languages
German (de)
French (fr)
Other versions
EP1623950A1 (en
Inventor
Rafael Cingerle
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.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DE602004003237T priority Critical patent/DE602004003237T2/en
Priority to ES04018326T priority patent/ES2277176T3/en
Priority to SI200430181T priority patent/SI1623950T1/en
Priority to EP04018326A priority patent/EP1623950B1/en
Priority to AT04018326T priority patent/ATE345306T1/en
Publication of EP1623950A1 publication Critical patent/EP1623950A1/en
Application granted granted Critical
Publication of EP1623950B1 publication Critical patent/EP1623950B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F3/00Dredgers; Soil-shifting machines
    • E02F3/04Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/96Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements
    • E02F3/965Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements of metal-cutting or concrete-crushing implements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B66C1/42Gripping members engaging only the external or internal surfaces of the articles
    • B66C1/44Gripping members engaging only the external or internal surfaces of the articles and applying frictional forces
    • B66C1/445Gripping members engaging only the external or internal surfaces of the articles and applying frictional forces motor actuated
    • B66C1/447Gripping members engaging only the external or internal surfaces of the articles and applying frictional forces motor actuated by hydraulic or pneumatic motors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B66C1/42Gripping members engaging only the external or internal surfaces of the articles
    • B66C1/58Gripping members engaging only the external or internal surfaces of the articles and deforming the articles, e.g. by using gripping members such as tongs or grapples

Definitions

  • This invention refers to a clamping device for a hydraulic arm of a working vehicle as in the characteristics of the pre-characterizing part of the main claim.
  • the working vehicle with said clamping unit is also part of the present invention.
  • the technical field refers to the manipulation of large blocks or heavy objects.
  • the moving means that can be attached to the end of an arm, for example, of a self-propelled machine are not usually autonomous or equipped with all possible movement to manipulate an object.
  • the aim of the present invention is to avoid the above-mentioned drawbacks and allow the production of a universal hydraulic clamping unit capable of being readily connected to the end of an arm of a self-propelled machine, such as an excavator, for example by simply removing its end bucket and replacing it with said clamping unit by means of rapid hydraulic connections prearranged for automatic coupling and electric current connection supplied by the excavator.
  • the arm movement is possible thanks to the cylinder that before allowed till 180° prior rotational movement. In this way, it is therefore possible to seize, raise, rotate, incline and further rotate the gripper allowing any form of manipulation of the heavy block seized between the jaws of the gripper.
  • the clamping device essentially includes mechanical attaching means of its bearing structure (not illustrated) at the end of an articulated arm of a working vehicle (not illustrated) and attaching means of the respective hydraulic pipes for sending hydraulic oil to the clamping unit and electrical attaching means for the control of the respective electro-valves that actuate the hydraulic circuits of said clamping unit.
  • the clamping unit includes a bearing structure that includes a connection with a first fluid motor (9) with conical pinion gear (8) for a gear wheel with worm screw (7) that gears on a crown gear (56) forming a rotational device (DR1) to rotate the whole main arm (46) that includes the clamping unit (at least for 360°), the assembly being covered with a support flange (51) and external protection cover with protection box containing an internal box (47) within which an internal double-acting oleodynamic cylinder (49) is housed, whose shaft end is hinged (491) to a forearm (AB) that rotates with it.
  • Said forearm (AB) is hinged laterally (12) at the end of the arm (B) and therefore the cylinder (49), hinged internally to the arm (490), can rotate said forearm (AB) angularly by at least 90°.
  • the hinging end of the shaft of the hydraulic cylinder (491) is hinged to the top of the internal support (40) of said forearm (AB), in this way making it rotate angularly.
  • the clamping unit (GP) can rotate at least for 360° and beyond, with respect to the forearm (AB), also when said forearm (AB) is rotated at an angular incline with respect to the arm (B).by means of said hydraulic piston (49).
  • the jaws (20a-20b-20c) of the clamping unit (GP) can be operated independently on said forearm (AB) by means of the activation of three respective oleodynamic cylinders (14).
  • the upper electric rotary switch system (1, 62, ...) allows the control of the respective two way electro-valve by electric rotating switch (43) which electric connections arrive also at the lower valve (17).
  • the end electric rotary switch system (24-30) similarly allows the control of the respective second electro-valve (43) that in turn controls the flow of the oil to the different devices of the second fluid motor (42), (said fluid motor acting on 22, 23, 24, 25, 26, 27, 28, 29, 34,38).
  • the operation of the hydraulic cylinder (14) is allowed by electromagnetic valve (17).
  • clamping unit of this invention is perfectly orientable in all directions in order to manipulate a heavy block as desired.
  • said arm (B) is covered with an external box (47) and an internal box (46) in which the external box is not rotary while on the contrary the internal box (46) is rotary and includes said internal angulation hydraulic cylinder (49).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manipulator (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

A clamping device for an hydraulic arm of a working vehicle to seize and manipulate an object, of the type connectable to the end of an articulated arm of a working vehicle by means of connecting means through a hydraulic oil supply and electrical current. characterized in that said clamping device includes: a) an arm (B); b) a forearm (AB) articulated to the first arm by means of lateral hinging (12), said forearm being inclinable up to 90° by means of an internal oleodynamic cylinder (49); c) a clamping jaw unit (GP) articulated outside the end of said forearm (AB) and involving three jaws (20a,20b,20c) with respective operating oleodynamic cylinders (14); d) said arm (B) involving a first rotational device (DR1) with first fluid motor (9) that transmits the external tangential continuous screw motion (7) geared on the crown gear (56) of said arm (B), in order to rotate said rotating internal box (46) with respect to the respective connecting means to the articulated arm of the working vehicle; e) said forearm (AB) comprising a second rotational means (DR2) to rotate said clamping jaw unit (GP) with respect to said forearm (AB) by means of a second internal fluid motor (42) and an axial reducer (15); f) a first and a second electrovalve (11,17) to operate the respective double two way oleodynamic movement members of said arm (B). the first fluid motor (9), the internal angulation hydraulic cylinder (49) and the three hydraulic cylinders (14) to operate the clamping jaws (20a,20b,20c), said hydraulic cylinders (14) being operated by a second fluid motor (42) in connection with a third electrovalve (43), and g) first and second brush electric switches for a rotating contact (SW1,SW2) for said second electrovalve (17) and the third electrovalve (43).

Description

    Object
  • This invention refers to a clamping device for a hydraulic arm of a working vehicle as in the characteristics of the pre-characterizing part of the main claim.
  • The working vehicle with said clamping unit is also part of the present invention.
  • Technical Field
  • The technical field refers to the manipulation of large blocks or heavy objects.
  • Background Art
  • In the prior art the need to manipulate very heavy objects, such as for example large stone blocks, or any other object is known.
  • At present this is carried out by means of traditional lifting, manipulation and positioning machines that, however, do not generally dispose of suitable and versatile means for the complete movement of the block.
    An example of clamping device of such type is disclosed in US-A-4426110 "Continuous rotation hydraulic grapple", having pending fluid-driven rotational motor means to rotate an hydraulic two-jaw clamping means.
  • The use of moving means is complex and implies high manufacturing costs.
  • Moreover, the moving means that can be attached to the end of an arm, for example, of a self-propelled machine are not usually autonomous or equipped with all possible movement to manipulate an object.
  • Aim of the Present Invention
  • The aim of the present invention is to avoid the above-mentioned drawbacks and allow the production of a universal hydraulic clamping unit capable of being readily connected to the end of an arm of a self-propelled machine, such as an excavator, for example by simply removing its end bucket and replacing it with said clamping unit by means of rapid hydraulic connections prearranged for automatic coupling and electric current connection supplied by the excavator.
  • Disclosure of the Invention
  • The problem is solved with the characteristics of claim 1.
  • The dependent claims refer to the preferred solutions.
  • Advantages
  • [0010] In this way the advantage of having a universal clamping device is obtained:
    • readily attachable and detachable from the end of the hydraulic arm of the self-propelled working vehicle;
    • can be oriented like a hand both in 360° rotation as well as flexible like a hand and also rotary when folded up to 90°, disposing of two rotation systems, one for the respective support and one for the respective clamping unit independent of its angular position.
  • [0011] The arm movement is possible thanks to the cylinder that before allowed till 180° prior rotational movement.
    In this way, it is therefore possible to seize, raise, rotate, incline and further rotate the gripper allowing any form of manipulation of the heavy block seized between the jaws of the gripper.
  • Description of a Preferred Embodiment
  • [0012] The clamping device according to the present invention will be better understood in its structure with the aid of the enclosed figures reporting a preferred embodiment, wherein:
    • Fig. 1 represents schematically in axial section the clamping unit of the present invention;
    • Fig.2 represents the same section as in Fig.1 but with all the numeral references detailing constructive details;
    • Fig.3 represents the schematic view of the support carrying the clamping unit that allows the connection and mechanical locking to the arm of the self-propelled machine, not illustrated.
    • Fig.4 represents a stirrup connected to pa device (2) for moving, being supported 63 that does not allow rotation of part 4 and part 61.
    • Fig. 5 represents the stirrup applied to hydraulic stator 36 and with the elongated part supported by 40, having the possibility to move and do not allowing rotation of the hydraulic stator.
    Detailed Description of the Clamping Device as in the Figures
  • [0013] As disclosed in Figure 1, the clamping device essentially includes mechanical attaching means of its bearing structure (not illustrated) at the end of an articulated arm of a working vehicle (not illustrated) and attaching means of the respective hydraulic pipes for sending hydraulic oil to the clamping unit and electrical attaching means for the control of the respective electro-valves that actuate the hydraulic circuits of said clamping unit.
  • Main structure of the Clamping Device
  • [0014] The clamping unit includes a bearing structure that includes a connection with a first fluid motor (9) with conical pinion gear (8) for a gear wheel with worm screw (7) that gears on a crown gear (56) forming a rotational device (DR1) to rotate the whole main arm (46) that includes the clamping unit (at least for 360°), the assembly being covered with a support flange (51) and external protection cover with protection box containing an internal box (47) within which an internal double-acting oleodynamic cylinder (49) is housed, whose shaft end is hinged (491) to a forearm (AB) that rotates with it.
  • [0015] Said forearm (AB) is hinged laterally (12) at the end of the arm (B) and therefore the cylinder (49), hinged internally to the arm (490), can rotate said forearm (AB) angularly by at least 90°.
  • [0016] The hinging end of the shaft of the hydraulic cylinder (491) is hinged to the top of the internal support (40) of said forearm (AB), in this way making it rotate angularly.
  • [0017] Under the pivoting plate and support (40) of the forearm (AB) there is a second fluid motor (42) that transmits the motion by means of an axial reducer (15) to the clamping unit (GP) that includes three opposing jaws (20a-20b-20c).
  • [0018] In this way the clamping unit (GP) can rotate at least for 360° and beyond, with respect to the forearm (AB), also when said forearm (AB) is rotated at an angular incline with respect to the arm (B).by means of said hydraulic piston (49).
  • [0019] Furthermore, the jaws (20a-20b-20c) of the clamping unit (GP) can be operated independently on said forearm (AB) by means of the activation of three respective oleodynamic cylinders (14).
  • [0020] The upper electric rotary switch system (1, 62, .....) allows the control of the respective two way electro-valve by electric rotating switch (43) which electric connections arrive also at the lower valve (17).
  • [0021] The end electric rotary switch system (24-30) similarly allows the control of the respective second electro-valve (43) that in turn controls the flow of the oil to the different devices of the second fluid motor (42), (said fluid motor acting on 22, 23, 24, 25, 26, 27, 28, 29, 34,38). The operation of the hydraulic cylinder (14) is allowed by electromagnetic valve (17).
  • [0022] It is understood in this way that the clamping unit of this invention is perfectly orientable in all directions in order to manipulate a heavy block as desired.
  • [0023] The constructive details are not shown, as they are adoptable by any individual skilled in this area.
  • [0024] In the following, the numeral references of the most important features of the structure of the clamping unit are reported in detail.
  • [0025] Advantageously, said arm (B) is covered with an external box (47) and an internal box (46) in which the external box is not rotary while on the contrary the internal box (46) is rotary and includes said internal angulation hydraulic cylinder (49).
  • [0026] With the help of the cylinder (49) supported by (40) with the intermediation of bearing (491), it is allowed the 90° rotation of the AB structure on the bearing (12). Reducer (15) is fixed into the internal structure (40), in which are mounted the second hydraulic motor (42) and the hydraulic valve (43) that allow 360° rotation of GP structure and the hydraulic cylinder support.
  • REFERENCE
    • 1 Electric rotating brushes
    • 2 Cover
    • 3 First electric cable
    • 4 Hydraulic stator
    • 5 Hydraulic oil channel
    • 6 Hydraulic cylinder base
    • 7 Worm
    • 8 conical gear
    • 9 First fluid motor
    • 10 Second electric cable for hydraulic valve activation
    • 11 Two way electro-valve for hydraulic motor 9 and hydraulic cylinder 49
    • 12 Pivot for jaw rotation
    • 13 Support for two reducers
    • 14 Hydraulic cylinder
    • 15 Second fixed reducer
    • 16 Rotating reducer
    • 17 Third hydraulic valve
    • 18 Hydraulic channel that carries to the electro-hydraulic valves 17
    • 19 Hydraulic duct support
    • 20a Jaw 1
    • 20b Jaw 2
    • 20c Jaw 3
    • 21 Support connecting 23 with 22
    • 22 Rotating clamp unit support
    • 23 Rotating axle shaft
    • 24 Hidraulic rotor
    • 25 Screw M12 for fixing the hydraulic oil dispenser
    • 26 Lubrication O'ring seal-gasket
    • 27 Screw M14 for hydraulic oil dispenser fixing
    • 28 Electric cable support
    • 29 Arcuate electric contacts for brushes
    • 30 Plate for electric contacts
    • 31 Lubrication sealing-gasket
    • 32 Hydraulic accumulator (with the locking valve, operates on cylinder (14) and
    • consequeently operates the clamping device (20a)).
    • 33 Lubrication sealing-gasket
    • 34 Bronze bearing
    • 34a Bronze bearing
    • 35 Hydraulic-oil sealing gasket
    • 36 Dispenser stator
    • 37 Reducer fixing screw
    • 38 Support for hydraulic cylinder and jaw unit
    • 39 Lubrication sealing-gasket
    • 40 Non-rotating static bushing
    • 41 Hose-pipe
    • 42 Second fluid motor
    • 43 Bi-directional hydraulic valve for 42
    • 44 Lubrication sealing-gasket
    • 45 Bronze bearing
    • 46 Rotating internal box
    • 47 Fixed external box
    • 48 Flexible hydraulic pipes to the dispenser 24-26-21
    • 49 Internal hydraulic cylinder
    • 50 Hydraulic ram hydraulic support
    • 51 External flange to support the internal arm unit
    • 52 Bronze bearing
    • 53 Steel support of bronze bearing
    • 54 Gasket for tightness against water and dust
    • 55 Screw M16 to fix rotating group
    • 56 Gearing crown
    • 57 Lubricating seal
    • 58 Hydraulic rotor
    • 59 Seal for 58
    • 60 Hydraulic oil channel
    • 61 Rotating part of electric rotating switch
    • 62 Fixed part of electric rotating switch
    • 63 Support for external box 47 (on the support (51) and bearing support (45) is screwed the support structure (63). The support structure (63) allows fixing the arm in movbable way by the operating machine in which was previously applied a bucket: the cylinder that previously operate the bucklet, now allows to move the arm of the present device for the movement of the pieces to be moved till 180°).
    • 64 Lower fork
    • 65 Upper fork

Claims (3)

  1. Clamping device for an hydraulic arm of a working vehicle to seize and manipulate an object, of the type connectable to the end of an articulated arm of a working vehicle by connecting means through a hydraulic oil supply and electrical current, of the type having a rotational hydraulic clamping jaw, comprising :
    a) an arm (B);
    b) a forearm (AB) characterized in that said fore arm (AB) being articulated to said arm (B) by means of lateral hinging (12), said forearm being inclinable up to 90° by means of an internal oleodynamic cylinder (49);
    c) a clamping jaw unit (GP) articulated outside the end of said forearm (AB) and involving three jaws (20a,20b,20c) each jaw having respectively an operating oleodynamic cylinder (14);
    d) said arm (B) involving a first rotational device (DR1)) with first fluid motor (9) that transmits the external tangential continuous screw motion (7) geared on the crown gear (56) of said arm (B), in order to rotate said rotating internal box (46) with respect to the respective connecting means to the articulated arm of the working vehicle;
    e) said forearm (AB) comprising second rotational means (DR2) to rotate said clamping jaw unit (GP) with respect to said forearm (AB) by means of a second internal fluid motor (42) and axial reducer (15);
    f)a first and a second electro-valve (11,17) to operate the respective double two way oleodynamic movement members of said arm (B):
    i) the first fluid motor (9),
    ii) the internal angulation hydraulic cylinder (49) and
    iii) the three hydraulic cylinders (14) to operate the clamping jaws (20a,20b.20c), said hydraulic cylinders being operated by a second fluid motor (42) in connection with a third electrovalve (43), and
    g) first and second brush electric switches for a rotating contact (SW1, SW2) for the second electro-valve (17) and the third electro valve (43).
  2. Clamping device according to claim 1, characterized in that said arm (B) is covered with an external box (47) and an internal box (46) in which the external box is not rotary while its internal box (46) is rotary and includes said internal angulation hydraulic cylinder (49).
  3. Clamping device according to claim 1, characterized in that said forearm includes an external box (38) articulating said clamping jaw unit (14, 20a,20b,20c) that rotates with bearings (34, 34a) on an internal box (40) that internally supports at the end of the piston rod (491) of said internal hydraulic cylinder (49) that downwardly supports the axial reducer (15) to provide the rotation to said clamping jaw unit (GP) with external connection (22).
EP04018326A 2004-08-03 2004-08-03 Crapple assembly for a hydraulic arm of an working vehicle Not-in-force EP1623950B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE602004003237T DE602004003237T2 (en) 2004-08-03 2004-08-03 Gripper for a hydraulic boom of a working vehicle
ES04018326T ES2277176T3 (en) 2004-08-03 2004-08-03 HOLDING DEVICE FOR A HYDRAULIC ARM OF A WORKING VEHICLE.
SI200430181T SI1623950T1 (en) 2004-08-03 2004-08-03 Crapple assembly for a hydraulic arm of an working vehicle
EP04018326A EP1623950B1 (en) 2004-08-03 2004-08-03 Crapple assembly for a hydraulic arm of an working vehicle
AT04018326T ATE345306T1 (en) 2004-08-03 2004-08-03 GRIPPER FOR A HYDRAULIC BOOM OF A WORK VEHICLE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04018326A EP1623950B1 (en) 2004-08-03 2004-08-03 Crapple assembly for a hydraulic arm of an working vehicle

Publications (2)

Publication Number Publication Date
EP1623950A1 EP1623950A1 (en) 2006-02-08
EP1623950B1 true EP1623950B1 (en) 2006-11-15

Family

ID=34926037

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04018326A Not-in-force EP1623950B1 (en) 2004-08-03 2004-08-03 Crapple assembly for a hydraulic arm of an working vehicle

Country Status (5)

Country Link
EP (1) EP1623950B1 (en)
AT (1) ATE345306T1 (en)
DE (1) DE602004003237T2 (en)
ES (1) ES2277176T3 (en)
SI (1) SI1623950T1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008025026A1 (en) * 2008-05-24 2009-11-26 MTS Gesellschaft für Maschinentechnik und Sonderbauten mbH Excavator accessory
ITMO20090152A1 (en) * 2009-06-05 2010-12-06 Negrini Srl MACHINE, PARTICULARLY OF THE TYPE OF BUCKETS OR POLYPES FOR THE RECOVERY OF MATERIAL
CN102560550A (en) * 2010-12-27 2012-07-11 贵阳铝镁设计研究院有限公司 Triple anode fixture
CN102408061B (en) * 2011-08-01 2013-08-28 智奇铁路设备有限公司 Wheel turning sling of high speed motor train unit
CN104444168B (en) * 2014-11-18 2017-10-13 如东前进石油机械制造有限公司 A kind of turnable transfer track device of dual-purpose tong
CN106426296A (en) * 2016-09-13 2017-02-22 苏州驱指自动化科技有限公司 90-degree clamping bracket
CN112455997A (en) * 2020-12-30 2021-03-09 河南合力起重机械有限公司 Anode carbon block stacking machine with storage system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4005895A (en) * 1975-11-17 1977-02-01 Cullings Harold L Rotational grapple
US4426110A (en) * 1981-09-17 1984-01-17 Mar Hook & Equipment, Inc. Continuous rotation hydraulic grapple
US4542929A (en) * 1983-09-01 1985-09-24 Possinger Warren K Articulating clam type grapple for a backhoe

Also Published As

Publication number Publication date
DE602004003237T2 (en) 2007-06-21
ES2277176T3 (en) 2007-07-01
SI1623950T1 (en) 2007-04-30
DE602004003237D1 (en) 2006-12-28
EP1623950A1 (en) 2006-02-08
ATE345306T1 (en) 2006-12-15

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