EP0587467A1 - Elektrostatische Spritzvorrichtung für ein leitfähiges Beschichtungsmaterial mit einem isolierten Behälter zum Aufbewahren des Materials - Google Patents

Elektrostatische Spritzvorrichtung für ein leitfähiges Beschichtungsmaterial mit einem isolierten Behälter zum Aufbewahren des Materials Download PDF

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Publication number
EP0587467A1
EP0587467A1 EP93401996A EP93401996A EP0587467A1 EP 0587467 A1 EP0587467 A1 EP 0587467A1 EP 93401996 A EP93401996 A EP 93401996A EP 93401996 A EP93401996 A EP 93401996A EP 0587467 A1 EP0587467 A1 EP 0587467A1
Authority
EP
European Patent Office
Prior art keywords
cavity
piston
coating product
bottom wall
jacket
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
Application number
EP93401996A
Other languages
English (en)
French (fr)
Other versions
EP0587467B1 (de
Inventor
Pierre Ehinger
Djamel Merabet
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.)
Sames Kremlin SAS
Original Assignee
Sames SA
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 Sames SA filed Critical Sames SA
Publication of EP0587467A1 publication Critical patent/EP0587467A1/de
Application granted granted Critical
Publication of EP0587467B1 publication Critical patent/EP0587467B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/16—Arrangements for supplying liquids or other fluent material
    • B05B5/1608—Arrangements for supplying liquids or other fluent material the liquid or other fluent material being electrically conductive
    • B05B5/1675—Arrangements for supplying liquids or other fluent material the liquid or other fluent material being electrically conductive the supply means comprising a piston, e.g. a piston pump
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/16—Arrangements for supplying liquids or other fluent material
    • B05B5/1608—Arrangements for supplying liquids or other fluent material the liquid or other fluent material being electrically conductive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
    • B05B13/04—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation
    • B05B13/0431—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation with spray heads moved by robots or articulated arms, e.g. for applying liquid or other fluent material to 3D-surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
    • B05B13/04—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation
    • B05B13/0447—Installation or apparatus for applying liquid or other fluent material to conveyed separate articles
    • B05B13/0452—Installation or apparatus for applying liquid or other fluent material to conveyed separate articles the conveyed articles being vehicle bodies

Definitions

  • the invention relates to a device for electrostatic projection of an electrically conductive liquid coating product, such as a water-based paint. It relates more particularly to a compact and light unit comprising in particular a reservoir of such a product normally brought to high voltage during a projection phase, the unit being capable of preventing the establishment of any ramping current between a part at the high voltage and any other part maintained by construction at a different potential, typically the potential of the earth.
  • the invention relates more particularly but not exclusively to a unit incorporating such an intermediate reservoir and at least one electrostatic projector, which is sufficiently compact and light to be carried by the end of a multi-axis robot including, in particular, the various segments articulated to each other are at the potential of the earth.
  • the patent FR 2 609 252 describes, among other things, a system for electrostatic projection of conductive coating product remarkable in that the quantity of product necessary for painting an object, is stored in a tank carried by a multi-axis robot.
  • the latter also carries the electrostatic headlamp, which is located in the immediate vicinity of the tank.
  • it can also carry at least the high voltage part of the electrical supply.
  • the high voltage output of this supply is connected to the projector so that all of the conductive coating product contained in the tank is itself brought to high voltage.
  • Such a system has in particular two important advantages. It eliminates any long flexible hose between the coating products distribution circuit and the projector carried by the robot, which saves significant amounts of coating product with each change of coating product, that is to say in fact with each change of color. It also makes it possible to carry out simply the necessary galvanic isolation between the tank and the supply circuit (at ground potential) during each spraying phase, when the coating product is a conductive product applied electrostatically.
  • the invention relates first of all to a compact and light arrangement of such an insulated intermediate tank, capable of containing a conductive coating product brought to a high voltage.
  • the device which is the subject of the invention is notably remarkable for all the measures taken to avoid the formation of leakage currents resulting from so-called "creeping" phenomena along in principle insulating surfaces, extending between an element brought to the high voltage and any element brought to a different potential, in particular the earth potential.
  • the invention therefore relates to a device for electrostatic projection of an electrically conductive liquid coating product, of the type comprising a reservoir of such a product where it is brought to a high voltage, defined in a generally cylindrical cavity formed in a body made of insulating material and inside which there is a piston forming in said cavity a movable wall separating a coating product chamber from an actuation chamber filled with an electrically insulating actuating fluid, said body being fixed to a base of conductive material brought to earth potential to which is connected, in particular, an actuating fluid supply circuit which extends between said base and said actuation chamber and opens into the latter in the vicinity of the bottom wall of said cavity which is not in contact with said coating product, characterized in that a section of said supply circuit e st arranged substantially parallel to said cavity in the opposite direction of said base from said bottom wall.
  • the entire cavity (up to the bottom wall of the actuation chamber) is at high voltage at least when the piston is pushed back in contact with this bottom wall, c that is to say when the tank is filled with coating product.
  • Said actuating fluid supply circuit necessarily opens into the actuating chamber and could therefore therefore constitute a privileged path for the appearance of a possible ramping current.
  • the invention makes it possible to guarantee a "path" of sufficient length along the insulating surfaces of this actuating fluid supply circuit from the actuating chamber to avoid the occurrence of ramping currents.
  • a shielded component may consist of a resistive sensor (of the potentiometer type) intended to determine the location of the piston and follow its movements to control the flow rate of coating product and to know, at any time, the quantity of product contained in the tank.
  • the length of the "path" defined above is obviously a function of the value of the high voltage.
  • the bottom wall and at least the largest part of the cylindrical wall of the cavity are defined in the same block of said body.
  • the electrostatic projection device as shown here comprises a multi-axis robot 11, known per se, of which there has been shown, in phantom, only the end portion to which is fixed in cantilever, a sub- assembly 12 comprising a reservoir 13 provided internally with a piston 14, an electrostatic sprayer 15 of coating product, connected to be supplied by the reservoir, a high voltage generator 16 and a connection unit 17 provided with connectors and pneumovannes, for connection to a cleaning installation and supply of the chosen coating product, this installation not being shown.
  • the structure of the connection unit is not part of the invention and will therefore not be described in detail.
  • the reservoir is defined in a generally cylindrical cavity 20 formed in a body 22 of insulating material, which consists of the assembly of two blocks, a first block 23 in which the major part of the reservoir is defined and which is fixed to a metal base 24 carried by the end of the robot 11 and a second block 25, carrying in particular the projector electrostatic 15, its pneumatically actuated flow regulator 28, and the aforementioned connection unit 17.
  • the piston 14 forms in said cavity, a movable wall separating a coating product chamber 30 (in communication with the electrostatic headlamp and the connection unit) from an actuation chamber 32 filled with an electrically actuating fluid.
  • insulator in this case air.
  • An actuating fluid supply circuit 34 necessarily opens into said actuating chamber. This circuit extends between said actuation chamber and the base 24 because, in order not to impede the movements of the robot and to allow a rapid change of the sub-assembly 12, all the pneumatic supply circuits and the electric cables which there are connected, pass through this base so that the electrical and pneumatic connections are grouped in a sort of beam inside the multi-axis robot.
  • the subassembly 12 is applied to the base 24 and is fixed therein by means of a threaded ring 35.
  • This assembly achieves the continuity of the various pneumatic circuits and the low voltage electrical connections, here via an axial connector 36
  • the entire robot, up to and including the base 24, is at ground potential.
  • the body also houses another shielded component from the electrical point of view, that is to say comprising a metallic envelope intended to be connected to the earth potential and therefore capable of promoting the establishment of rampage currents.
  • a resistive sensor 40 forming a sort of linear potentiometer, of known structure, capable of being actuated by means of a magnet 42 carried by the piston 14.
  • It comprises a metallic casing 43, tubular electrically connected to the basement.
  • a resistive sensor comprises two rectilinear tracks made of resistive material 44 a , 44 b , arranged side by side while a cursor 45 or the like consisting of or comprising an element sensitive to a magnetic field is subject to move along these two tracks parallel to the piston.
  • said cursor 45 is metallic and retained in contact with the two tracks by the magnetic tensile force exerted by the magnet 42.
  • this resistive sensor 40 is intended to allow the development of an electrical signal representative of the position of the piston 14 inside the tank. It could be replaced by any other means of non-contact detection of the position of the piston in the cavity.
  • the invention makes it possible to take into account the additional problem created by the presence of a shielded sensor from the electrical point of view, that is to say of which the metal envelope is brought to the earth potential.
  • the bottom wall 48 of the cavity which is not in contact with the coating product and at least most of the cylindrical wall 49 of this same cavity 20 are defined in the same block 23.
  • the surface of this part of the cavity is continuous, without fitting or assembly and constitutes a kind of blind hole with a flat bottom.
  • a section of the air supply circuit is arranged substantially parallel to this cavity in the opposite direction of said base 24 from the bottom wall 48. In this way, the distance between the bottom wall 48 and the metal base 24 can be relatively small so that the subassembly 12 mounted in overhang at the end of the robot arm, is as compact and light as possible.
  • the piston 14 is slidably mounted in a tubular jacket 50 of electrically insulating material, for example ceramic, glass, or even plastic, mounted adjusted in the cavity 20 and the aforementioned section of the supply circuit 34 in actuating fluid is constituted by at least one longitudinal channel 54 defined between the surface of the cavity and the external face of the jacket.
  • said tubular jacket 50 has at least one longitudinal groove 55 on its outer face, extending from the end of said jacket adjoining the bottom wall of the cavity to a circular groove 56 of connection communicating with a bore 57 of said body forming part of said actuating fluid supply circuit.
  • the tubular jacket 50 comprises a plurality of longitudinal grooves 55 regularly distributed on its outer face and all communicating with said circular groove 56 for connection.
  • the jacket is drilled radially or crenellated at the end of each longitudinal groove to establish communication between said grooves and the actuation chamber 48.
  • the corresponding edge of the skirt of the piston 14 is also crenellated, for the same reason.
  • the actuating fluid supply circuit comprises a straight pipe 58 installed longitudinally in an external cylindrical recess 59 formed over almost the entire length of the block 23 to lighten the sub-assembly 12 mounted in overhang on the robot.
  • This pipe is connected, by screwed connection ends, to the bore 57 on the one hand and to the part 34a of the circuit formed in the base, on the other hand.
  • the circuit 34 is itself connected to a source of compressed air supply, not shown.
  • the other air circuits supplying, for example, the sprayer 15 and the regulator 28 are arranged in the same way, that is to say that they pass through the base 24 and are extended by a pipe installed in the recess 59.
  • the latter is covered with a cylindrical protective sleeve 60, made of insulating material.
  • a seal 62 is interposed between the two blocks of insulating material 23, 25 constituting the body 22, outside the jacket 50. Consequently, the actuating air injected at the level of the circular groove 56 does not can escape through the assembly plane of the two blocks.
  • the air supply circuit d actuation 34 comprises a section of sufficient length (at least between said bottom wall 48 and the circular groove 56) so that no ramping current can be established towards any metallic element brought to earth potential.
  • this section has a length of the order of 20 cm.
  • a tubular guard ring 65 made of insulating material, is inserted in the two blocks 23, 25, perpendicular to their assembly surface and coaxially with the cavity 20. This arrangement is conventional for combating the currents of rampage.
  • the guard ring 65 is installed between the cavity 20, on the outside of the jacket 50, and the resistive sensor 40. Since the latter has a metal casing 43 set to earth potential, said envelope is surrounded by a sheaths of insulating material 68 over at least part of its length, at least in the vicinity of the end of said section of the actuating air supply circuit opposite to the bottom wall 48 of the cavity, that is to say in the vicinity of the circular groove 56 and the joint plane of the two blocks. This sheath extends here over ten centimeters and further reduces the risk of a rampage current being established between the actuating air supply circuit and said resistive sensor.
  • the block 25 closing the cavity also includes a cylindrical bore extending said cavity and into which engages the tubular jacket 50.
  • This cylindrical bore ends in a shoulder 69 whose width corresponds to the thickness of the jacket.
  • This shoulder is located a very short distance from the end wall 70 of the cavity, defined in block 25, where the conduits connected to the projector 15 and to the connection unit 17 open out.
  • a seal 71 is interposed between the end of said jacket and the shoulder, this joint is dimensioned to define a substantially continuous surface in the coating product chamber. It is made of a material which does not flow, so as to avoid any accumulation of coating product in the vicinity of the end of the jacket, throughout the lifetime of the device.
  • the face 72 of the piston 14 which faces the end wall 70 is provided with protruding inserts 73 to avoid adhesion of the walls at the end of their travel.
  • the piston 14 carries a magnet 42, itself in contact with two pole pieces 74 which slide along the inner surface of the jacket 20.
  • This magnetic assembly makes it possible to drive the cursor 45 of the resistive sensor.
  • a magnet here the same magnet 42, is magnetically coupled (by the same pole pieces) to longitudinal guide means, made of magnetic material, for example of soft iron, making it possible to stabilize the piston in rotation.
  • these guide means consist of two rods 77 made of soft iron, arranged on either side of the resistive sensor over at least the entire length of the path of the piston. This avoids in a simple way any mechanical keying of the piston, friction generator and source of leaks.
  • the piston being thus immobilized in rotation, we are sure of the quality of the magnetic coupling between the cursor 45 and the magnet 42 and we are therefore always able to know the exact position of the piston in the cavity, which allows to effectively control the desired flow variations.
  • the piston displacement sensor can also be an optical detector.
  • a monochromatic light source 101 such as a laser diode emits a light beam A in the direction of a reflecting ball 102 fixed to the rear of the piston 14.
  • the reflected light signal B is picked up by an interferometer 103, for example an interferometer from Michaelson, and transmitted by an electrical conductor 104 to a central control unit not shown.
  • the signal obtained is representative of the speed of displacement of the piston, therefore of the instantaneous flow rate of coating product. In particular, it is not necessary to derive a position signal to know this speed, therefore this flow.
  • a transparent and insulating plate 105 for example made of glass, embedded in the bottom of the tank, isolates the inside of the tank 13 from the light source 101 and from the detector 103. There is no physical contact between the measurement and inside the tank 13, any rampage of the high voltage is thus avoided.
  • This system is particularly advantageous since it does not require calibrating or calibrating the measuring device when the reservoir 13 has been dismantled. Its accuracy is of the order of 10 micrometers and independent of operating conditions, such as the quality of the ambient air or the cleanliness of the surface of the ball 102. In addition, it is possible to provide that the measuring device remains in place when the standard exchange of sub-assembly 12 is carried out.

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  • Electrostatic Spraying Apparatus (AREA)
EP93401996A 1992-09-09 1993-08-03 Elektrostatische Spritzvorrichtung für ein leitfähiges Beschichtungsmaterial mit einem isolierten Behälter zum Aufbewahren des Materials Expired - Lifetime EP0587467B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9210746 1992-09-09
FR9210746A FR2695327B1 (fr) 1992-09-09 1992-09-09 Dispositif de projection électrostatique de produit de revêtement électriquement conducteur, muni d'un réservoir isolé adapté à contenir un tel produit.

Publications (2)

Publication Number Publication Date
EP0587467A1 true EP0587467A1 (de) 1994-03-16
EP0587467B1 EP0587467B1 (de) 1997-02-26

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Application Number Title Priority Date Filing Date
EP93401996A Expired - Lifetime EP0587467B1 (de) 1992-09-09 1993-08-03 Elektrostatische Spritzvorrichtung für ein leitfähiges Beschichtungsmaterial mit einem isolierten Behälter zum Aufbewahren des Materials

Country Status (6)

Country Link
US (1) US5310120A (de)
EP (1) EP0587467B1 (de)
JP (1) JP2796236B2 (de)
DE (1) DE69308253T2 (de)
ES (1) ES2098005T3 (de)
FR (1) FR2695327B1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6422491B1 (en) 1997-12-18 2002-07-23 Lactec Gmbh Gesellschaft Fuer Moderne Lackiertechnik Method and device for isolating an electro-conductive flowing medium
EP1736244A1 (de) * 2005-06-23 2006-12-27 SAMES Technologies Apparat zur Demontage eines Kolbens, sein Gebrauch und Einrichtung zum Versprühen von Beschichtungsprodukten die solch ein Apparat beinhaltet
CN100537045C (zh) * 2005-06-23 2009-09-09 萨姆斯技术公司 包括贮存器的喷射涂层产品的装置和设备
FR2939333A1 (fr) * 2008-12-09 2010-06-11 Sames Technologies Projecteur de produit de revetement et procede pour reapprovisionner un tel projecteur

Families Citing this family (22)

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Publication number Priority date Publication date Assignee Title
DE4312262A1 (de) * 1993-04-15 1994-10-20 Gema Volstatic Ag Elektrostatische Sprühvorrichtung
US5341990A (en) * 1993-06-11 1994-08-30 Nordson Corporation Apparatus and method for dispensing electrically conductive coating material including a pneumatic/mechanical control
JP2801541B2 (ja) * 1993-11-24 1998-09-21 旭サナック株式会社 電圧ブロック装置
FR2722432B1 (fr) 1994-07-13 1996-10-25 Sames Sa Dispositif de projection comprenant un reservoir de produit de revetement et procede de nettoyage et de remplissage d'un tel reservoir
FR2727039B3 (fr) * 1994-11-18 1996-12-13 Sames Sa Procede et dispositif de projection de produit de revetement
US5549755A (en) * 1994-12-08 1996-08-27 Nordson Corporation Apparatus for supplying conductive coating materials including transfer units having a combined shuttle and pumping device
DE19610588B4 (de) * 1996-03-18 2010-08-05 Dürr Systems GmbH Beschichtungsmaschine mit auswechselbarem Behälter
DE19610589A1 (de) * 1996-03-18 1997-09-25 Duerr Gmbh & Co Verfahren und System zur Farbversorgung einer Beschichtungsanlage
EP0967016B1 (de) * 1998-01-13 2004-11-10 Abb K.K. Beschichtungsvorrichtung mit einem drehenden sprühkopf
JP3263373B2 (ja) * 1998-12-18 2002-03-04 エービービー株式会社 自動塗装装置
CZ20033505A3 (cs) * 2001-07-02 2004-12-15 Virtek Laser Systems, Inc. Způsob vyhloubení otvoru v tvrdém, nekovovém podkladu
DE10136720A1 (de) 2001-07-27 2003-02-13 Duerr Systems Gmbh Dosiersystem für eine Beschichtungsvorrichtung
US6676049B2 (en) 2001-11-16 2004-01-13 Efc Systems, Inc. Bell cup powder spray applicator
US6705361B2 (en) 2001-11-21 2004-03-16 Fanuc Robotics North America, Inc. Apparatus and method for filling a painting robot canister
DE10211244A1 (de) 2002-03-13 2003-10-23 Lactec Ges Fuer Moderne Lackte Lackieranlage zum Aufbringen von flüssigem Beschichtungsmaterial
US7056387B2 (en) * 2003-12-10 2006-06-06 Efc Systems, Inc. Apparatus and method for electrostatic spraying of conductive coating materials
FR2890876B1 (fr) * 2005-09-19 2007-11-30 Sames Technologies Soc Par Act Installation de projection de produit de revetement multi-composant
ES2685244T3 (es) 2005-10-07 2018-10-08 Dürr Systems Ag Dispositivo de suministro de agente de revestimiento y procedimiento de funcionamiento correspondiente
CN101277768B (zh) * 2005-10-07 2011-03-23 Abb股份有限公司 涂料供给设备及系统
US9713816B2 (en) * 2015-03-19 2017-07-25 Paccar Inc Zero waste color change system
US10239072B2 (en) * 2015-09-22 2019-03-26 Honda Motor Co. Ltd. Energy dissipation unit for high voltage charged paint system
CN112160561A (zh) * 2020-11-01 2021-01-01 湖南欧龙艺墅建筑材料有限公司 一种建筑装饰装修喷涂装置

Citations (2)

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FR2635990A1 (fr) * 1988-09-07 1990-03-09 Sames Sa Installation de projection de produit de revetement a debit controle
FR2668956A1 (fr) * 1990-11-08 1992-05-15 Honda Motor Co Ltd Appareil de peinture par pulverisation electrostatique.

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DE3440381A1 (de) * 1984-11-05 1986-05-07 Ransburg Gmbh, 6056 Heusenstamm Verfahren und vorrichtung zum automatischen elektrostatischen spruehbeschichten
SE449451B (sv) * 1986-03-24 1987-05-04 Leif Tilly Sett och anordning att tillfora ett elektriskt ledande, flytande medium fran ett forradssystem till en forbrukningsstation
JPH053233Y2 (de) * 1986-09-10 1993-01-26
FR2609252B1 (fr) * 1987-01-02 1989-04-21 Sames Sa Installation de projection de produit de revetement tel que par exemple une peinture et notamment installation de projection electrostatique de peinture a base d'eau
DE3725172A1 (de) * 1987-05-27 1989-02-09 Behr Industrieanlagen Verfahren und anlage zum elektrostatischen beschichten mit leitfaehigem material
US4798341A (en) * 1987-09-28 1989-01-17 The Devilbiss Company Spray gun for robot mounting
FR2656460B1 (fr) * 1989-12-22 1994-02-11 Sames Sa Dispositif d'isolation electrique formant element de conduit et installation comportant un tel dispositif.
US5288029A (en) * 1990-11-08 1994-02-22 Honda Giken Kogyo Kabushiki Kaisha Apparatus for electrostatically spray-coating workpiece with paint
FR2669245B1 (fr) * 1990-11-20 1993-02-19 Sames Sa Installation de projection electrostatique de produit de revetement liquide conducteur.
GB2252262B (en) * 1991-01-22 1994-08-31 Honda Motor Co Ltd Structure for preventing current from leaking out of devices for electrostatic spray coating

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2635990A1 (fr) * 1988-09-07 1990-03-09 Sames Sa Installation de projection de produit de revetement a debit controle
FR2668956A1 (fr) * 1990-11-08 1992-05-15 Honda Motor Co Ltd Appareil de peinture par pulverisation electrostatique.

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6422491B1 (en) 1997-12-18 2002-07-23 Lactec Gmbh Gesellschaft Fuer Moderne Lackiertechnik Method and device for isolating an electro-conductive flowing medium
EP1736244A1 (de) * 2005-06-23 2006-12-27 SAMES Technologies Apparat zur Demontage eines Kolbens, sein Gebrauch und Einrichtung zum Versprühen von Beschichtungsprodukten die solch ein Apparat beinhaltet
FR2887473A1 (fr) * 2005-06-23 2006-12-29 Sames Technologies Soc Par Act Appareil de demontage d'un piston, son utilisation et installation de projection de produit de revetement comportant un tel appareil
CN100537045C (zh) * 2005-06-23 2009-09-09 萨姆斯技术公司 包括贮存器的喷射涂层产品的装置和设备
US7931215B2 (en) 2005-06-23 2011-04-26 Sames Technologies Device and an installation for spraying a coating fluid, and including a reservoir
FR2939333A1 (fr) * 2008-12-09 2010-06-11 Sames Technologies Projecteur de produit de revetement et procede pour reapprovisionner un tel projecteur
WO2010067014A1 (fr) * 2008-12-09 2010-06-17 Sames Technologies Projecteur de produit de revetement et procede pour reapprovisionner un tel projecteur en produit de revetement
US8746167B2 (en) 2008-12-09 2014-06-10 Sames Technologies Coating product spraygun and method for resupplying coating product to such a spraygun

Also Published As

Publication number Publication date
ES2098005T3 (es) 1997-04-16
EP0587467B1 (de) 1997-02-26
DE69308253D1 (de) 1997-04-03
FR2695327A1 (fr) 1994-03-11
JPH06154664A (ja) 1994-06-03
US5310120A (en) 1994-05-10
DE69308253T2 (de) 1997-10-09
FR2695327B1 (fr) 1995-07-07
JP2796236B2 (ja) 1998-09-10

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