EP0786287B1 - Mischvorrichtung für Fluide, insbesondere für industrielle Tinten oder Farben - Google Patents

Mischvorrichtung für Fluide, insbesondere für industrielle Tinten oder Farben Download PDF

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Publication number
EP0786287B1
EP0786287B1 EP97101049A EP97101049A EP0786287B1 EP 0786287 B1 EP0786287 B1 EP 0786287B1 EP 97101049 A EP97101049 A EP 97101049A EP 97101049 A EP97101049 A EP 97101049A EP 0786287 B1 EP0786287 B1 EP 0786287B1
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EP
European Patent Office
Prior art keywords
rotary portion
fitted
valve
engaging
axis
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.)
Expired - Lifetime
Application number
EP97101049A
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English (en)
French (fr)
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EP0786287A1 (de
Inventor
Michele Manzone
Luca Drocco
Mario Drocco
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Dromont Srl
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Dromont Srl
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/80—Mixing plants; Combinations of mixers
    • B01F33/84—Mixing plants with mixing receptacles receiving material dispensed from several component receptacles, e.g. paint tins
    • B01F33/841—Mixing plants with mixing receptacles receiving material dispensed from several component receptacles, e.g. paint tins with component receptacles fixed in a circular configuration on a horizontal table, e.g. the table being able to be indexed about a vertical axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/80—Mixing plants; Combinations of mixers
    • B01F33/84—Mixing plants with mixing receptacles receiving material dispensed from several component receptacles, e.g. paint tins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
    • B01F2101/30—Mixing paints or paint ingredients, e.g. pigments, dyes, colours, lacquers or enamel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
    • B01F2101/35—Mixing inks or toners

Definitions

  • the present invention relates to a fluid mixing device, particularly for paint or industrial ink.
  • Mixing devices for fluids such as paint or industrial ink comprise a number of normally-closed valves having at least one fluid supply conduit (conveniently connected to a pressurized fluid vessel) and a supply nozzle. Each valve is fitted to a slide movable, by a respective actuating device (e.g. a pneumatic cylinder), between an idle position, and an operating position in which the valve is connectable to a member for at least partially opening the valve, so that the fluid flows out of the nozzle into a mixing vessel.
  • actuating device e.g. a pneumatic cylinder
  • Such a device in accordance with the preamble of claim 1, is known from GB-A-2060563.
  • a fluid mixing device particularly for paint or industrial ink, as described in Claim 1.
  • Number 1 in Figure 1 indicates a fluid mixing device, particularly for paint or industrial ink.
  • Mixing device 1 comprises a supporting structure 3 (shown partially) in turn comprising a central structure 5, and a number of straight supporting and guide elements 7 equally spaced angularly and extending radially from central structure 5.
  • central structure 5 comprises a cylindrical tubular body 10 coaxial with an axis 11 and in turn comprising a first top end portion (not shown) fitted to a supporting frame (not shown), and a second bottom end portion 10a fitted with an annular flange 12 extending outwards of tubular body 10.
  • Each straight supporting element 7 comprises a straight crosspiece 17 in turn comprising a first end portion 17a fitted to tubular body 10 and to flange 12 by a supporting element 18, and a second end portion 17b supporting a plate 20.
  • Each straight supporting element 7 also comprises a straight guide 22 (shown partially) fitted to plate 20 and extending parallel to crosspiece 17 from plate 20 to tubular body 10; and straight guides 22 are equally spaced angularly, and extend radially from central structure 5.
  • a slide 24 runs along each guide 22, and comprises a substantially rectangular wall 25 from which extends integrally downwards a trapezoidal appendix 27 having an end portion 27a supporting a known three-way valve 29.
  • Wall 25 is substantially coplanar with a plane through axis 11, and comprises a trapezoidal recess 25a facing central structure 5, and at the bottom of which is formed a substantially T-shaped seat 31.
  • Three-way valve 29 comprises a cylindrical casing 30, from the opposite ends of which there extend axially a downward-facing nozzle 34 and a control rod 35 facing supporting structure 3. More specifically, control rod 35 comprises a knob 37 having a substantially T-shaped cross section, and the function of which is described later on. Valve 29 also comprises a fluid inlet pipe 39 conveniently supplied with pressurized fluid, such as paint or industrial ink; and a recirculating pipe 40 communicating with a fluid collecting tank (not shown).
  • each slide 24 is movable between an idle position (shown by the continuous line in Figure 1) in which slide 24 is located at a first end of guide 22 close to plate 20, and valve 29 is located a predetermined distance L from axis 11; and an operating position (shown by the dotted line in Figure 1) in which slide 24 is located at a second end of guide 22 close to tubular body 10, and valve 29 is coaxial with axis 11.
  • Device 1 also comprises a selecting device 42 extending axially from tubular body 10 and movable angularly about axis 11 as described later on.
  • tubular body 10 ( Figure 2) houses a circular plate 46 perpendicular to axis 11 and closing end portion 10a.
  • Plate 46 is fitted stably to tubular body 10 and annular flange 12 by means of screws 48, is connected by screws 49 to a tubular sleeve 53 extending coaxially with axis 11 and outwards of tubular body 10, and comprises a central through opening 55 coaxial with axis 11 and communicating with the cylindrical inner cavity defined by tubular sleeve 53.
  • Selecting device 42 comprises a tubular element 57 coaxial with axis 11 and defining a cylindrical inner cavity 57k housing sleeve 53. More specifically, sleeve 53 is connected to tubular element 57 by two ball bearings 59, 60 housed inside cavity 57k and permitting tubular element 57 to rotate in axially-fixed manner about sleeve 53.
  • Tubular element 57 comprises a top end portion 57a connected stably to a ring gear 62 facing circular plate 46 and substantially coplanar with the plane through annular flange 12. Ring gear 62 meshes with a pinion 64 fitted to the output shaft 66a of a hydraulic motor 66 in turn fitted to circular plate 46 and housed inside tubular body 10.
  • Ring gear 62 ( Figure 6) comprises a first number of through holes 69 equally spaced angularly about a first circumference C1, and a second number of through holes 71 equally spaced angularly about a second circumference C2 inwards of first circumference C1; and each hole 69 in the first number is separated by a constant angle ⁇ with respect to an adjacent hole 71 in the second number.
  • Device 1 comprises an angular positioning device 73 for angularly positioning selecting device 42 about axis 11, and which comprises a first and second hydraulic actuator 76, 77 (both shown in Figure 6) fitted to plate 46, housed inside tubular body 10, and having pins 79 movable axially to and from ring gear 62 through respective holes 81 ( Figure 2) formed through plate 46.
  • Pin 79 of hydraulic actuator 76 engages a respective hole 71 (or 69 in the case of actuator 77) to establish a predetermined stable angular position of ring gear 62 (and hence tubular element 57 integral with ring gear 62) about axis 11 and with respect to central structure 5.
  • Tubular element 57 houses a rod 84 coaxial with axis 11, extending through tubular sleeve 53 and opening 55, and comprising a top end portion 84a housed inside tubular body 10 and connected by a joint 85 to the output member 87 of an actuator 88, e.g. a pneumatic cylinder (shown schematically in Figure 1), for moving rod 84 axially along axis 11.
  • Joint 85 (known type) permits rod 84 to rotate in relation to output member 87.
  • Rod 84 comprises a bottom end portion 84b projecting from tubular element 57 and connected to an angular guide device 89, which comprises two flat rectangular walls 90 facing each other, connected stably to a bottom end portion 57b of tubular element 57, and extending axially from tubular element 57.
  • One wall 90 comprises a substantially rectangular slot 92 ( Figures 1, 2, 3) extending parallel to axis 11 and housing in rolling manner a roller 94 fitted in angularly free manner to a pin 95 extending radially from rod 84.
  • angular guide device 89 prevents rod 84 from rotating about axis 11 in relation to tubular body 57, but permits axial movement of rod 84.
  • walls 90 are fitted with a circular plate 97 crosswise to axis 11 and having a substantially rectangular slot 98 extending radially from the edge to the center of plate 97 ( Figures 2 and 3).
  • the end portion of bottom end portion 84b of rod 84 comprises a retaining seat 103 having a T-shaped cross section and extending radially inwards of rod 84.
  • Selecting device 42 also comprises a pneumatic actuator 106 fitted to tubular element 57, and which in turn comprises a cylindrical body 107 projecting from tubular element 57, and a control shaft 108 extending axially from cylindrical body 107 and through tubular element 57.
  • rod 84 comprises a diametrical, axially-elongated through opening 110 ( Figure 4) through which control rod 108 extends and projects from tubular element 57 through a hole 112.
  • Control rod 108 comprises an end portion fitted with an engaging element 109 having a substantially T-shaped cross section and which engages seat 31 in slide 24 as described later on.
  • Pneumatic actuator 106 is connected to an axial guide device 114 located on the opposite side of tubular element 57 to cylindrical body 107, and comprising a substantially rectangular flange 117 extending radially from tubular element 57, and a pair of idle rollers 119 fitted to flange 117 and located on either side of control shaft 108.
  • Rollers 119 comprise annular V-shaped grooves ( Figure 3) engaged by, and for axially guiding and preventing inflection of, control shaft 108, which is movable radially between a first extracted position in which engaging element 109 is connectable to seat 31 of a slide 24 in the idle position, and a withdrawn position ( Figure 2) in which engaging element 109 is adjacent to rollers 119 of axial guide device 114.
  • Device 1 also comprises an electronic control unit 130 ( Figure 1) for controlling motor 66, actuators 76, 77, pneumatic actuator 106, and actuator 88 activating output member 87.
  • Figure 1 for controlling motor 66, actuators 76, 77, pneumatic actuator 106, and actuator 88 activating output member 87.
  • slides 24 of device 1 are all set to the idle position, valves 29 of device 1 are all located at distance L from axis 11, and control shaft 108 is set to the extracted position.
  • electronic unit 130 activates motor 66 to rotate selecting device 42 about axis 11, so that tubular body 57 rotates about axis 11, and engaging element 109 of control shaft 108 travels along a path in the form of an arc of a circle extending successively through the T-shaped seats 31 of adjacent slides 24 equally spaced angularly about axis 11.
  • unit 103 stops motor 66, and actuator 76 or 77 is operated to insert pin 79 inside hole 71 or 69 to lock ring gear 62 in relation to supporting structure 3 and establish a predetermined stable angular position of element 109 in relation to slide 24.
  • Actuator 106 is arrested when valve 29 is coaxial with axis 11 ( Figure 2), in which position, control rod 35 is housed inside slot 98, and the top portion of knob 37 engages retaining seat 103.
  • electronic unit 130 operates actuator 88 to move output member 87 axially away from plate 46 and so move rod 84 axially upwards.
  • the bottom portion 84a of rod 84 therefore moves away from plate 97, taking with it knob 37, the T shape of which prevents it from withdrawing from seat 103; and axial displacement of rod 35 of valve 29 opens the valve (partially or fully) so that fluid flows from nozzle 34 into a mixing vessel ( Figure 1).
  • electronic unit 130 again operates actuator 88 to move output member 87 axially towards plate 46 and bottom portion 84a towards plate 97 to close valve 29. At which point, unit 130 operates actuator 106 to push slide 24 into the idle position, so that rod 35 withdraws from slot 98 and valve 29 moves away from axis 11. Actuator 106 is arrested upon slide 24 reaching the idle position, at which point, actuator 76 or 77 is operated to withdraw pin 79 from hole 71 or 69 and so release ring gear 62 from supporting structure 3.
  • Electronic unit 103 then operates motor 66 to rotate selecting device 42 about axis 11, connect engaging element 109 to a further slide 24, and select a further valve 29.
  • the operations described above are then repeated for the further slide to successively position valve 29 coaxial with axis 11, open and close the valve, and reset slide 24 to the idle position.
  • a number of different fluids may therefore be mixed in the mixing vessel by repeating the above selection and open/close operations for a number of valves.
  • mixing device 1 comprises a limited number of component parts, and, being simpler in design, is cheaper and more reliable as compared with known devices.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Nozzles (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)

Claims (13)

  1. Mischvorrichtung für Fluide, insbesondere für Farben oder industrielle Tinten, mit:
    einer Tragestruktur (3);
    mehreren Schlitten (24), die mindestens ein entsprechendes, normal geschlossenes Ventil (29) tragen, welches mindestens einen Fluidzufuhrkanal (34), eine Fluiddüse (34), und ein Steuerteil (35) zum zumindest teilweisen Öffnen des Ventils (29) aufweist, dadurch gekennzeichnet, daß
    mehrere Führungen (22) vorgesehen sind, die an der Tragestruktur (3) angebracht sind, und sich radial von einem zentralen Abschnitt (5) der Tragestruktur (3) aus erstrecken;
       wobei jede Führung (22) einen entsprechenden Schlitten (24) trägt, der die Führung (22) entlang läuft;
    Auswahlmittel (42), die an der Tragestruktur (3) angebracht sind, wobei die Auswahlmittel (42) mindestens einen drehbaren Abschnitt (57) aufweisen, der von Antriebsmitteln (66) um eine Rotationsachse (11) gedreht werden kann;
       wobei die Auswahlmittel (42) eine Eingriffsvorrichtung (106) aufweisen, die an dem drehbaren Abschnitt (57) angebracht ist, und ein Eingriffsteil (108, 109) aufweist, welches zwischen einer ersten Stellung und einer zweiten Stellung radial bewegbar ist;
       und wobei der drehbare Abschnitt (57) bei mehreren Winkelstellungen einstellbar ist, bei welchen das bei der ersten Stellung eingestellte Eingriffsteil (108, 109) in Eingriff mit einem entsprechenden bei einer Ruhestellung eingestellten Schlitten (24) kommt; wobei das Eingriffsteil (108, 109) von der ersten Stellung zu der zweiten Stellung bewegbar ist, um den Schlitten (24) von der Ruhestellung zu einer Arbeitsstellung zu bewegen, bei welcher das Ventil (29) in Eingriff mit Ventilöffnungsmitteln (103) kommt, um das Ventil (29) zumindest teilweise zu öffnen.
  2. Vorrichtung gemäß Anspruch 1, dadurch gekennzeichnet, daß die Ventilöffnungsmittel (84, 103) Eingriffsmittel (103) aufweisen, um mit dem Steuerteil (35) des Ventils (29) in Eingriff zu kommen, wobei die Eingriffsmittel von Betätigungsmitteln (88) entlang der Rotationsachse (11) zwischen einer Ventil-Schließ-Stellung und einer Ventil-Öffnungs-Stellung axial bewegbar sind.
  3. Vorrichtung gemäß Anspruch 2, dadurch gekennzeichnet, daß die Ventilöffnungsmittel eine Stange (84) aufweisen, welche an dem drehbaren Abschnitt (57) angebracht ist, und von den Betätigungsmitteln (88) axial entlang der Rotationsachse (11) verschiebbar ist, wobei die Stange (84) einen Endabschnitt (84b) aufweist, an welchem ein Haltesitz (103) für das Steuerteil (35) des Ventils (29) ausgebildet ist.
  4. Vorrichtung gemäß Anspruch 3, dadurch gekennzeichnet, daß der drehbare Abschnitt koaxial zu der Rotationsachse (11) einen röhrenförmigen Körper (57) aufweist, in welchem die Stange (84) auf axial verschiebbare Weise angeordnet ist.
  5. Vorrichtung gemäß Anspruch 3 oder 4, dadurch gekennzeichnet, daß Winkelführungsmittel (89) vorgesehen sind, die mit der Stange (84) verbunden sind, und eine Winkeldrehung der Stange (84) in Bezug auf den drehbaren Abschnitt (57) verhindern.
  6. Vorrichtung gemäß Anspruch 5, dadurch gekennzeichnet, daß die Winkelführungsmittel (89) mindestens einen prismaförmigen Körper (90) aufweisen, der sich radial von der Stange (84) aus erstreckt, und eine gerade Führung (92) für den prismaförmigen Körper (90), wobei die Führung (92) integral mit dem drehbaren Abschnitt (57) ist, und sich parallel zu der Rotationsachse (11) erstreckt.
  7. Vorrichtung gemäß einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Eingriffsvorrichtung mindestens einen Linearbetätiger (106) aufweist, der an dem drehbaren Abschnitt (57) angebracht ist, und eine Steuerwelle (108) aufweist, die sich radial von dem drehbaren Abschnitt (57) aus erstreckt, und axial zwischen der ersten Stellung und der zweiten Stellung bewegbar ist, wobei die Steuerwelle (108) an einem freien Ende ein Eingriffselement (109) aufweist, um in Eingriff mit einem Abschnitt des Schlittens zu kommen.
  8. Vorrichtung gemäß Anspruch 7, dadurch gekennzeichnet, daß das Eingriffselement (109) einen Körper mit einem im wesentlichen T-förmigen Querschnitt aufweist,
       wobei jeder Schlitten einen im wesentlichen T-förmigen Sitz (31) aufweist, in dem das Eingriffselement (109) angeordnet ist.
  9. Vorrichtung gemäß Anspruch 7 oder 8, dadurch gekennzeichnet, daß für die Steuerwelle (108) Linearführungsmittel vorgesehen sind, die mindestens ein Paar Rollen (119) aufweisen, welche an jeder Seite der Steuerwelle (108) angeordnet sind, und an einem Ansatz (117) angebracht sind, der sich von dem drehbaren Abschnitt (57) aus erstreckt.
  10. Vorrichtung gemäß einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß Winkelstellungsmittel (73) vorgesehen sind, um mehrere feststehende Winkelstellungen des drehbaren Abschnitte (57) in Bezug auf die Tragestruktur (3)- zu schaffen.
  11. Vorrichtung gemäß Anspruch 10, dadurch gekennzeichnet, daß die Winkelstellungsmittel (73) mehrere winkelbeabstandete Löcher (69, 71) aufweisen die in einer Wand (62) ausgebildet sind, die integral mit dem drehbaren Abschnitt (57) ist und quer zu der Rotationsachse (11) liegt, und mindestens einen Betätiger (76, 77), der an der Tragestruktur (3) angebracht ist, und ein Ausgangsteil (79) aufweist, welches axial zu der Wand (62) hin und von dieser weg bewegbar ist, um individuell in Eingriff mit den Löchern (69, 71) zu kommen.
  12. Vorrichtung gemäß Anspruch 10, dadurch gekennzeichnet, daß die Winkelstellungsmittel (73) aufweisen:
    eine erste Anzahl winkelbeabstandeter Löcher (69), die um einen ersten Kreis (C1) angeordnet sind, und in einer Wand (62) ausgebildet sind, die integral mit dem drehbaren Abschnitt (57) ist und quer zu der Rotationsachse (11) liegt;
    einen ersten Betätiger (57), der an der Tragestruktur (3) angebracht ist, und ein Ausgangsteil (79) aufweist, welches axial zu der Wand (62) hin und von dieser weg bewegbar ist, um individuell in Eingriff mit den Löchern (69) der ersten Anzahl zu kommen;
    eine zweite Anzahl winkelbeabstandeter Löcher (71), die um einen zweiten Kreis (C2) innerhalb des ersten Kreises (C1)angeordnet sind;
    einen zweiten Betätiger (76), der an der Tragestruktur (3) angebracht ist, und ein Ausgangsteil (79) aufweist, welches axial zu der Wand (62) hin und von dieser weg bewegbar ist, um individuell in Eingriff mit den Löchern (71) der zweiten Anzahl zu kommen.
  13. Vorrichtung gemäß einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß Winkelbewegungsübertragungsmittel vorgesehen sind, die zwischen dem drehbaren Abschnitt (57) und den Antriebsmitteln (66) angeordnet sind, wobei die Übertragungsmittel ein ringförmiges Zahnrad (62) aufweisen, welches sich radial von dem drehbaren Abschnitt (57) aus erstreckt, und ein Ritzel (64), das in das ringförmige Zahnrad (62) eingreift, und von den Antriebsmitteln gedreht wird.
EP97101049A 1996-01-26 1997-01-23 Mischvorrichtung für Fluide, insbesondere für industrielle Tinten oder Farben Expired - Lifetime EP0786287B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITTO960049 1996-01-26
IT96TO000049A IT1284347B1 (it) 1996-01-26 1996-01-26 Dispositivo miscelatore di fluidi, in particolare vernici o inchiostri industriali

Publications (2)

Publication Number Publication Date
EP0786287A1 EP0786287A1 (de) 1997-07-30
EP0786287B1 true EP0786287B1 (de) 2000-08-16

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EP97101049A Expired - Lifetime EP0786287B1 (de) 1996-01-26 1997-01-23 Mischvorrichtung für Fluide, insbesondere für industrielle Tinten oder Farben

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EP (1) EP0786287B1 (de)
DE (1) DE69702778T2 (de)
ES (1) ES2150709T3 (de)
IT (1) IT1284347B1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1286835B1 (it) * 1996-09-19 1998-07-17 Giuseppe Guglielmetti Apparecchiatura per il dosaggio e la distribuzione di prodotti liquidi e semiliquidi
US8684232B2 (en) 2008-11-05 2014-04-01 Full Process S.A. Colorant fluid dispensing device for dispensing multiple colorant fluids
IT202400002292A1 (it) 2024-02-05 2025-08-05 Logic S R L Dispositivo di dosatura per macchina dosatrice e macchina dosatrice comprendente un tale dispositivo
IT202400002283A1 (it) 2024-02-05 2025-08-05 Logic S R L Macchina dosatrice
EP4667112A1 (de) 2024-06-21 2025-12-24 Dromont S.p.A. Dosierventil mit reinigungseinrichtung
EP4667113A1 (de) 2024-06-21 2025-12-24 Dromont S.p.A. Dosierventil mit reinigungseinrichtung

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4046287A (en) * 1976-05-10 1977-09-06 Graco Inc. Automatic metering and dispensing system
IT1165450B (it) * 1979-09-28 1987-04-22 Arrigoni Giordano Distributore per impianti di stoccaggio e preparazione di colori
IT1161054B (it) * 1983-02-08 1987-03-11 Giordano Arrigoni Perfezionamenti ai complessi (assemblies) di alimentazione e dosaggio variabile e selettivo di colori variamente pigmentati e/o miscelati, per la preparazione di coloranti in genere, e relativi complessi di alimentazione e dosaggio perfezionati
US4967938A (en) * 1989-07-17 1990-11-06 Fluid Management Limited Partnership Paint dispensing apparatus
IT1261258B (it) * 1993-09-13 1996-05-09 Dromont Meccanica Srl Valvola dosatrice per dispositivo dosatore automatico per fluidi, in particolare vernici industriali
IT1267194B1 (it) * 1994-12-07 1997-01-28 Dromont S R L Dispositivo miscelatore di fluidi, in particolare vernici o inchiostri industriali

Also Published As

Publication number Publication date
DE69702778T2 (de) 2000-12-14
IT1284347B1 (it) 1998-05-18
ES2150709T3 (es) 2000-12-01
ITTO960049A1 (it) 1997-07-26
ITTO960049A0 (it) 1996-01-26
EP0786287A1 (de) 1997-07-30
DE69702778D1 (de) 2000-09-21

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