[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

EP0574305B1 - Vorrichtung zum elektrostatischen Sprühen von pulverformigen Stoffen mit einem rotierenden Ionisierungskopf - Google Patents

Vorrichtung zum elektrostatischen Sprühen von pulverformigen Stoffen mit einem rotierenden Ionisierungskopf Download PDF

Info

Publication number
EP0574305B1
EP0574305B1 EP93401461A EP93401461A EP0574305B1 EP 0574305 B1 EP0574305 B1 EP 0574305B1 EP 93401461 A EP93401461 A EP 93401461A EP 93401461 A EP93401461 A EP 93401461A EP 0574305 B1 EP0574305 B1 EP 0574305B1
Authority
EP
European Patent Office
Prior art keywords
deflector
ionisation
head
bowl
air
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
EP93401461A
Other languages
English (en)
French (fr)
Other versions
EP0574305A1 (de
Inventor
Pierre Chabert
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 EP0574305A1 publication Critical patent/EP0574305A1/de
Application granted granted Critical
Publication of EP0574305B1 publication Critical patent/EP0574305B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
    • B05B5/053—Arrangements for supplying power, e.g. charging power
    • B05B5/0533—Electrodes specially adapted therefor; Arrangements of electrodes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
    • B05B3/10—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces
    • B05B3/1064—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces the liquid or other fluent material to be sprayed being axially supplied to the rotating member through a hollow rotating shaft
    • 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
    • B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
    • B05B5/04—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces
    • 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
    • B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
    • B05B5/04—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces
    • B05B5/0418—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces designed for spraying particulate material
    • 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
    • B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
    • B05B5/04—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces
    • B05B5/0426—Means for supplying shaping gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
    • B05B3/10—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces
    • B05B3/1092—Means for supplying shaping gas

Definitions

  • the invention relates to a device for electrostatic projection of a powder coating product such as for example a hot-melt paint and relates more particularly to an improvement of the electrostatic charging means of the powder, making it possible to obtain a broad impact on the object. and excellent homogeneity of the deposit over the entire width of said impact.
  • a powder coating product such as for example a hot-melt paint
  • the invention also makes it possible to improve the deposition yield, compared with what is obtained with conventional devices.
  • the invention relates to a device for electrostatic projection of a powder coating product for covering objects, comprising a supply channel for an air-powder mixture opening axially at the bottom of an ionization head for creating an electric ionization field capable of charging said coating product by ion bombardment, this ionization head comprising an element generally in the form of bowl and comprising at least one rotating part, said ionization head comprising a deflector arranged coaxially in front of the orifice of said channel and spaced from said bowl-shaped element, characterized in that it further comprises a counter electrode, arranged axially set back relative to said ionization head and in that said deflector extends to the periphery of said bowl-shaped element so as to define with it an annular ejection outlet for the air mixture -powder, the edge of this deflector, located near the edge of said bowl-shaped element constituting or carrying a charging electrode.
  • the above-mentioned rotating part can be the generally bowl-shaped element or the deflector. It is preferable that the rotating part is that which more particularly constitutes the electrode, that is to say here the deflector. However, in a simple and effective way, it is the whole of the ionization head (that is to say the bowl-shaped element and the deflector) which is mounted rotating around a longitudinal axis combined with that of said feed channel opening at the bottom of the ionization head. In this case, said deflector is fixed to said bowl-shaped element by bracing means.
  • the bowl-shaped element is generally made of insulating material.
  • the deflector may be of conductive material and in this case it has a sharp edge at its outer periphery so that an ionized electric field can be established between this edge and the counter-electrode.
  • the field lines "wrap" the annular ejection outlet of the air-powder mixture so that the powder particles are more effectively charged by ions emitted by the electrode.
  • the deflector may also be made of insulating material.
  • conductive elements are embedded inside the deflector and emerge in the form of points at the periphery of the latter. It is enough to provide a sufficient number of spikes regularly arranged at the periphery of the deflector so that the electric ionization field can be established between these different points brought to a high voltage and the counter-electrode, the operation being the same as with an electrode constituted by the whole of the deflector in conductive material.
  • the electrostatic projection device shown in Figure 1 mainly consists of a body 11, generally cylindrical, provided with an axial recess 12 housing a supply channel 13 of an air-powder mixture and a turbine 14 with pneumatic drive arranged around this channel.
  • the output shaft 15, in the form of a sleeve, of this turbine protrudes beyond a front face of the body 11 and carries an ionization head 16 which will be described in detail below.
  • the body 11 is extended by a rear element 18 also made of insulating material, shaped to engage in the recess 12 over a certain axial distance to the rear of the turbine.
  • This element carries a connection end piece 20, for the air-powder mixture, a high voltage connector 22 intended to be connected, by an electric cable 22 a , to a high voltage source, a compressed air connection end piece 24 , in particular for supplying the turbine and a ground connector 28, intended to be connected to earth by an electric cable 28 a .
  • the feed channel 13 is materialized by a conduit 13a, rigid, integral with the rear element 18 and communicating with the nozzle 20. This duct extends axially in a sleeve 29 forming the support of the turbine 14. This sleeve is axially screwed into the element 18 and extends into the recess 12 of the body 11.
  • the conduit 13 a protrudes from the body 11 beyond its front face above, which is capped by a cap 30 screwed onto a external thread of said body.
  • the rotor 32 of the turbine carrying the blades 33 is mounted rotating on the sleeve 29 by two axially spaced ball bearings 34.
  • the high voltage is applied to the ionization head via a contact element 35, a resistor 36 (82 M ⁇ ) limiting the current and the components of the turbine 14, made of conductive material.
  • the electrical connection between the resistor 36 and the turbine is ensured by a metal spring 37 compressed between one end of the resistor and an annular contact piece 38 interposed between the element 18 and the turbine 14.
  • Between the front face of the body 11 and the cap 30 are defined annular chambers supplied with compressed air.
  • An annular chamber 40 is located in the immediate vicinity of the shaft 15 and the air escapes through the annular clearance defined between the cap 30 and the shaft 15 ensuring permanent cleaning of the latter.
  • Another annular chamber 42 feeds drive air ejection channels 43, the orifices of which are arranged coaxially and behind the ionization head 16, towards the periphery thereof to create a current of air entraining the air-powder mixture towards the object to be covered.
  • a cylindrical, annular counter-electrode 45 is housed in an annular cavity defined between the body 11 and the cap 30. It is arranged axially set back relative to the ionization head.
  • This counter-electrode, with a porous structure, is placed over a groove 46 formed in the body 11 and supplied with compressed air. The air escapes radially through holes 47 of the cap 30, regularly arranged circumferentially. Thus, the ions collected by the counter-electrode pass through the holes 47 but the air which escapes from it prevents the powder from accumulating on this counter-electrode.
  • the latter is connected to earth by conductive elements such as, in the example shown, a metal spring 48, a metal ball 49, another metal spring 50, a resistor 51 (500 M ⁇ ), connector 28 and power cable 28 a . Holes are made in the body 11 to supply the chambers 40 and 42 and the groove 46.
  • the ionization head comprises a generally bowl-shaped element 56, here made of insulating material and a deflector 58, here made of metal.
  • the element 56 comprises a tubular hub 57 screwed into the shaft 15 of the turbine.
  • the conduit 13 a is engaged in the axial recess of the hub 57, without contact with it, and opens at the bottom of the element 56 in the form of a bowl.
  • the deflector 58 is arranged coaxially at the front of the orifice of the channel 13 while being spaced from the element 56 by bracing means 60.
  • the deflector extends radially up to the periphery of the shaped element bowl 56 so as to define with it an annular ejection outlet 62 for the air-powder mixture.
  • the edge of the deflector 58 constitutes a charging electrode.
  • the edge of the deflector 58 has a sharp edge 58 a at its external periphery.
  • the deflector being integral with the bowl-shaped element 56, it is the assembly of the ionization head which is rotated by the turbine.
  • the bracing means 60 and in particular the screws 64, metallic, which make it possible to connect the deflector 58 to the high voltage. More specifically, the screws 64 pass through the bowl-shaped element 56 and are screwed into a metal ring 66 in electrical contact with the end of the shaft 15 of the turbine.
  • the deflector 68 is made of insulating material in which, during molding, conductive elements 70, 72 are electrically connected to the screws 64 of the bracing means.
  • each point emerges inside a small crater 74 hollowed out in the peripheral edge of the deflector. So defined, the deflector 68 can replace the deflector 58 of FIG. 1.
  • the air-powder mixture circulating in the axial channel 13 strikes the rotating deflector and engages in the space defined between the bowl-shaped element 56 and the internal wall of the deflector, up to the annular outlet. 62. On leaving, the powder particles are charged by bombardment of ions emitted by the deflector forming an electrode.
  • the ions emitted by the charging electrode can follow two paths. Part of the ions go to the counter electrode and the other part to the object to be covered. The presence of the counter-electrode makes it possible to obtain a good charge of the powder while limiting the current towards the object.
  • the ion current which is established between the electrode and the counter-electrode is equal to approximately four times the charge carried by the powder and four times the ion current which s' establishes between the deflector and the object to be covered. It is estimated that the rotation of the ionization head makes it possible to better homogenize the air-powder mixture at the outlet 62 and thus to promote better loading of the powder particles.

Landscapes

  • Electrostatic Spraying Apparatus (AREA)

Claims (8)

  1. Vorrichtung zum elektrostatischen Sprühen von pulverförmigen Stoffen zum Überziehen von Gegenständen, umfassend einen Kanal (13) zur Zuführung eines Luft-Pulver-Gemischs, der axial in den Boden des Ionisationskopfes (16) mündet, der zur Erzeugung eines ionisierenden Feldes dient, das dazu geeignet ist, das Überzugsprodukt durch Ionenbeschuß zu laden, wobei dieser Ionisationskopf ein im wesentlichen schüsselförmiges Element (56) umfaßt und zumindest ein rotierendes Teil aufweist, sowie ein Ablenkmittel (58, 68) hat, das koaxial zu der Öffnung des Kanals (13) ausgebildet und von dem schüsselförmigen Element beabstandet ist, dadurch gekennzeichnet, daß die Vorrichtung außerdem eine Gegenelektrode (45) umfaßt, die axial hinter dem Ionisationskopf angeordnet ist, und daß das Ablenkmittel sich bis zum Umfang des schüsselförmigen Elements erstreckt, dergestalt, daß es mit letzterem eine ringförmige Austrittsöffnung (62) für das Luft-Pulver-Gemisch bildet, wobei der Rand dieses Ablenkmittels, der in der Nähe des Randes des schüsselförmigen Elements liegt, eine Ladeelektrode ist oder trägt.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das Ablenkmittel (58) aus leitfähigem Material besteht und eine scharfe Kante (58a) an seinem äußeren Umfang aufweist, und daß es über Zwischenstücke (60) an dem schüsselförmigen Element befestigt ist, wobei letzteres von einem Drehantriebsmittel wie einer Turbine (14) gehalten wird.
  3. Vorrichtung zum Sprühen nach Anspruch 2, dadurch gekennzeichnet, daß das schüsselförmige Element aus nichtleitendem Material besteht, wobei die Zwischenstücke (60) metallische Bereiche (64) aufweisen, um das Ablenkmittel an eine Hochspannung anzuschließen.
  4. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das Ablenkmittel (68) aus isolierendem Material besteht, in das im Inneren die leitfähigen Elemente (70, 72), die mit einer Hochspannung verbunden sind, eingebettet sind, von denen einige in Form von Spitzen am Umfang des Ablenkmittels zum Vorschein kommen.
  5. Vorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Gegenelektrode (45) ringförmig ist und in einer ringförmigen Ausnehmung angebracht ist, die mit dem umgebenden Raum über eine Anzahl regelmäßig voneinander beabstandeter Löcher (47) verbunden ist.
  6. Vorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Gegenelektrode (45) eine ansich bekannte, poröse Elektrode ist, die über einer Druckluftnut (46), die mit einer Druckluftquelle verbunden ist, liegt.
  7. Vorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß sie Kanäle (43) zum Austoßen von Antriebsluft für das Luft-Pulver-Gemisch umfaßt, deren Öffnungen koaxial und hinter dem Ionisationskopf ausgebildet sind, um das Luft-Pulver-Gemisch in Richtung eines zu überziehenden Objektes zu treiben.
  8. Vorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß eine ringförmige Kammer (40) um die den Ionisationskopf tragende Welle (15) angeordnet ist, und daß diese ringförmige Kammer mit einer Druckluftquelle verbunden ist.
EP93401461A 1992-06-10 1993-06-09 Vorrichtung zum elektrostatischen Sprühen von pulverformigen Stoffen mit einem rotierenden Ionisierungskopf Expired - Lifetime EP0574305B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR929206962A FR2692173B1 (fr) 1992-06-10 1992-06-10 Dispositif de projection électrostatique d'un produit de revêtement en poudre à tête d'ionisation tournante.
FR9206962 1992-06-10

Publications (2)

Publication Number Publication Date
EP0574305A1 EP0574305A1 (de) 1993-12-15
EP0574305B1 true EP0574305B1 (de) 1997-04-23

Family

ID=9430564

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93401461A Expired - Lifetime EP0574305B1 (de) 1992-06-10 1993-06-09 Vorrichtung zum elektrostatischen Sprühen von pulverformigen Stoffen mit einem rotierenden Ionisierungskopf

Country Status (7)

Country Link
US (1) US5353995A (de)
EP (1) EP0574305B1 (de)
JP (1) JP3291503B2 (de)
CA (1) CA2098050C (de)
DE (1) DE69310026T2 (de)
ES (1) ES2101257T3 (de)
FR (1) FR2692173B1 (de)

Families Citing this family (50)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5474236A (en) * 1992-12-03 1995-12-12 Nordson Corporation Transfer of electrostatic charge to a rotary atomizer head through the housing of a rotary atomizing spray device
DE4312262A1 (de) * 1993-04-15 1994-10-20 Gema Volstatic Ag Elektrostatische Sprühvorrichtung
US5632448A (en) * 1995-01-25 1997-05-27 Ransburg Corporation Rotary powder applicator
US5697559A (en) * 1995-03-15 1997-12-16 Nordson Corporation Electrostatic rotary atomizing spray device
US6056215A (en) * 1995-03-15 2000-05-02 Nordson Corporation Electrostatic rotary atomizing spray device
US6105886A (en) * 1995-05-19 2000-08-22 Nordson Corporation Powder spray gun with rotary distributor
WO1996036438A1 (en) * 1995-05-19 1996-11-21 Nordson Corporation Powder spray gun with rotary distributor
DE69629330T2 (de) * 1995-06-01 2004-06-17 Nordson Corp., Westlake Sprühzerstäuber mit Gegenelektrode
DE19621072A1 (de) 1996-05-24 1997-11-27 Gema Volstatic Ag Elektrostatische Sprühvorrichtung
US6328224B1 (en) 1997-02-05 2001-12-11 Illinois Tool Works Inc. Replaceable liner for powder coating apparatus
EP0857515A3 (de) 1997-02-05 1998-09-16 Illinois Tool Works Inc. Abluftstrom einer Turbine einer Pulverbeschichtungsvorrichtung
US5853126A (en) * 1997-02-05 1998-12-29 Illinois Tool Works, Inc. Quick disconnect for powder coating apparatus
US5947377A (en) * 1997-07-11 1999-09-07 Nordson Corporation Electrostatic rotary atomizing spray device with improved atomizer cup
US5908162A (en) * 1998-02-25 1999-06-01 Nordson Corporation Spray gun having an anti-back-ionization probe with a control system therefor
US5938126A (en) * 1998-03-23 1999-08-17 Nordson Corporation Spray gun having a current monitored anti-back-ionization probe
US8141797B2 (en) 2001-01-25 2012-03-27 Durr Systems Inc. Rotary atomizer for particulate paints
US6189804B1 (en) * 1998-03-27 2001-02-20 Behr Systems, Inc. Rotary atomizer for particulate paints
FR2791279B1 (fr) 1999-03-25 2002-03-29 Sames Sa Dispositif de projection d'un produit de revetement en poudre et organe de projection equipant un tel dispositif
FR2796573A1 (fr) * 1999-07-22 2001-01-26 Sames Sa Tete de pulverisation rotative et dispositif de projection de produit de revetement equipe d'une telle tete
KR100473034B1 (ko) * 2000-12-20 2005-03-10 에이비비 가부시키가이샤 회전무화헤드형 도장장치
US20030080206A1 (en) * 2001-03-08 2003-05-01 Thomas Duerr Powder bell purge tube
US6676049B2 (en) 2001-11-16 2004-01-13 Efc Systems, Inc. Bell cup powder spray applicator
DE10159588A1 (de) * 2001-12-05 2003-06-12 Duerr Systems Gmbh Glockentellerkonstruktion für Pulverzerstäuber
US6916378B2 (en) * 2002-01-08 2005-07-12 Precision Valve & Automation, Inc. Rotary dispenser and method for use
DE10202712A1 (de) 2002-01-24 2003-07-31 Duerr Systems Gmbh Verfahren zum Steuern der Sprühstrahlbreite eines Zerstäubers und Zerstäuber für die Serienbeschichtung von Werkstücken
US7341641B2 (en) * 2002-03-20 2008-03-11 Lg.Philips Lcd Co., Ltd. Bonding device for manufacturing liquid crystal display device
DE10236017B3 (de) * 2002-08-06 2004-05-27 Dürr Systems GmbH Rotationszerstäuberturbine und Rotationszerstäuber
US20050098659A1 (en) * 2002-09-27 2005-05-12 Milojevic Dragoslav K. Swirl gun for powder particles
US6874712B2 (en) * 2002-09-27 2005-04-05 Abb Inc. Swirl gun for powder particles
US6889921B2 (en) * 2002-09-30 2005-05-10 Illinois Tool Works Inc. Bell cup skirt
FR2857279B1 (fr) * 2003-07-07 2005-08-26 Eisenmann France Sarl Buse de diffusion de poudre pour un dispositif de poudrage electrostatique a jet oriente
US7128277B2 (en) * 2003-07-29 2006-10-31 Illinois Tool Works Inc. Powder bell with secondary charging electrode
US20050023385A1 (en) * 2003-07-29 2005-02-03 Kui-Chiu Kwok Powder robot gun
US20050056212A1 (en) * 2003-09-15 2005-03-17 Schaupp John F. Split shroud for coating dispensing equipment
DE10359280A1 (de) * 2003-12-17 2005-07-21 Itw Gema Ag Sprühbeschichtungsvorrichtung
US20050173556A1 (en) * 2004-02-09 2005-08-11 Kui-Chiu Kwok Coating dispensing nozzle
US20070104886A1 (en) * 2005-11-10 2007-05-10 General Electric Company Electrostatic spray for coating aircraft engine components
US20050202270A1 (en) * 2004-03-10 2005-09-15 Skoog Andrew J. Powder coating of gas turbine engine components
GB2442210B (en) 2006-09-27 2011-12-07 Yu Tung Invest Holdings Ltd Powder spray coating discharge assembly
GB0625583D0 (en) * 2006-12-21 2007-01-31 Itw Ltd Paint spray apparatus
US8371517B2 (en) 2007-06-29 2013-02-12 Illinois Tool Works Inc. Powder gun deflector
US8602326B2 (en) * 2007-07-03 2013-12-10 David M. Seitz Spray device having a parabolic flow surface
US20090020626A1 (en) * 2007-07-16 2009-01-22 Illinois Tool Works Inc. Shaping air and bell cup combination
US8096264B2 (en) * 2007-11-30 2012-01-17 Illinois Tool Works Inc. Repulsion ring
US10155233B2 (en) * 2008-04-09 2018-12-18 Carlisle Fluid Technologies, Inc. Splash plate retention method and apparatus
US8333334B1 (en) 2010-09-20 2012-12-18 Thad Gefert Electro-spray coating head applicator
CA2943337C (en) * 2014-03-25 2018-04-03 Honda Motor Co., Ltd. Electrostatic coating device
US10773266B2 (en) 2015-12-01 2020-09-15 Carlisle Fluid Technologies, Inc. Spray tool power supply system and method
FR3117910B1 (fr) * 2020-12-18 2023-04-07 Exel Ind Robot, système et procédé de poudrage électrostatique
DE102022119668A1 (de) 2022-08-04 2024-02-15 Gema Switzerland Gmbh Anordnung und verfahren zum vorzugsweise automatischen beschichten von gegenständen

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2759763A (en) * 1952-07-22 1956-08-21 Ransburg Electro Coating Corp Spray coating apparatus and method
US2955565A (en) * 1956-03-19 1960-10-11 Electro Dispersion Corp Electrostatic coating apparatus
US3102062A (en) * 1960-03-28 1963-08-27 Stratford Eng Corp Apparatus for continuous edible oil finishing
FR1274814A (fr) * 1960-11-05 1961-10-27 Procédé et appareil de pulvérisation
US4114564A (en) * 1963-06-13 1978-09-19 Ransburg Corporation Electrostatic coating apparatus
US3233655A (en) * 1964-05-07 1966-02-08 Stratford Eng Corp Liquid atomization apparatus
GB1209653A (en) * 1968-07-02 1970-10-21 Air O Static Inc Apparatus for electrostatic spray coating
FR1589618A (de) * 1968-10-21 1970-03-31
FR2283729A1 (fr) * 1974-09-06 1976-04-02 Air Ind Buse de projection electrostatique de produits en poudre
CH579951A5 (de) * 1975-04-11 1976-09-30 Gema Ag
US4135667A (en) * 1977-03-23 1979-01-23 Hajtomuvek Es Festoberendezesek Gyara Apparatus for the electrostatic coating of workpieces
US4360155A (en) * 1979-12-21 1982-11-23 G & R Electro-Powder Coating Corporation Powder coating distributor
DE3640497A1 (de) * 1986-11-27 1988-06-09 Ucosan Bv Austrittsduese fuer das austrittsventil einer whirlpool-wanne
FR2620354B2 (fr) * 1987-02-12 1990-01-05 Sames Sa Dispositif de projection electrostatique de produit en poudre

Also Published As

Publication number Publication date
EP0574305A1 (de) 1993-12-15
DE69310026T2 (de) 1997-08-21
CA2098050A1 (fr) 1993-12-11
US5353995A (en) 1994-10-11
ES2101257T3 (es) 1997-07-01
CA2098050C (fr) 2005-07-26
JP3291503B2 (ja) 2002-06-10
FR2692173A1 (fr) 1993-12-17
DE69310026D1 (de) 1997-05-28
FR2692173B1 (fr) 1994-09-02
JPH0655105A (ja) 1994-03-01

Similar Documents

Publication Publication Date Title
EP0574305B1 (de) Vorrichtung zum elektrostatischen Sprühen von pulverformigen Stoffen mit einem rotierenden Ionisierungskopf
EP0576329A1 (de) Elektrostatische Sprühvorrichtung mit einen rotierenden Kopf zum Versprühen einer Beschichtungsflüssigkeit
EP1480756B1 (de) Rotationszerstäuber für beschichtungsmittel
FR2569580A1 (fr) Dispositif d'application de peinture tournant a grande vitesse
CH373672A (fr) Procédé pour appliquer par voie électrostatique un revêtement sur un objet, et installation pour la mise en oeuvre de ce procédé
FR2620354A2 (fr) Dispositif de projection electrostatique de produit en poudre
FR2736847A1 (fr) Dispositif rotatif electrostatique de pulverisation par atomisation
FR2905288A1 (fr) Tete de pulverisation.
EP3831497B1 (de) Rotierender elektrostatischer projektor für beschichtungsmaterial, sprühanlage, die eine solche sprühvorrichtung umfasst
FR2598636A1 (fr) Atomiseur rotatif pour la projection de peintures liquides et analogues
FR2763263A1 (fr) Pistolet de pulverisation de poudre par voie electrostatique
EP1129784B1 (de) Elektrostatische Beschichtigungseinrichtung mit zwei Gebrauchsweisen und Verfahren dafür
WO1999049982A1 (fr) Bol de pulverisation et projecteur rotatif electrostatique equipe d'un tel bol
EP1038587B1 (de) Sprühvorrichtung für Beschichtungspulver und mit dieser Sprühvorrichtung ausgerüsteter Sprühapparat
FR2483263A1 (fr) Tete atomisante rotative pour appareils d'application, par voie electrostatique, de produits liquides, tels que, notamment, peintures et vernis
US3591080A (en) Electrostatic spray gun
EP0243043B1 (de) Rotierende Vorrichtung für die Beschichtung durch elektrostatische Zerstäubung einer Flüssigkeit
EP3831499B1 (de) Rotierender elektrostatischer projektor für beschichtungsmaterial, sprühanlage, die eine solche sprühvorrichtung umfasst, und beschichtungsverfahren mithilfe dieser sprühvorrichtung
WO2005005056A1 (fr) Buse de diffusion de poudre pour un dispositif de poudrage electrostatique a jet oriente
FR2693923A1 (fr) Dispositif de projection électrostatique de produit pulvérulent.
CA2435955C (fr) Pulverisateur triboelectrique
EP0126917A2 (de) Vorrichtung zum Einleiten dosierter Mengen von pulverförmigen Stoffen in ein pneumatisches Fluid und ihre Verwendung bei einem Austeilbehälter
CH497923A (fr) Appareil de projection électrostatique
FR2796573A1 (fr) Tete de pulverisation rotative et dispositif de projection de produit de revetement equipe d'une telle tete
EP0135424A1 (de) Vorrichtung zur schnellen Entladung, ohne Lichtbogen, der Kapazität einer Hochspannungsquelle

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): BE CH DE ES GB IT LI NL SE

17P Request for examination filed

Effective date: 19940107

17Q First examination report despatched

Effective date: 19950918

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE CH DE ES GB IT LI NL SE

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: E. BLUM & CO. PATENTANWAELTE

Ref country code: CH

Ref legal event code: EP

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19970424

REF Corresponds to:

Ref document number: 69310026

Country of ref document: DE

Date of ref document: 19970528

ITF It: translation for a ep patent filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2101257

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20010517

Year of fee payment: 9

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030101

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20030101

BECH Be: change of holder

Owner name: S.A. *SAMES TECHNOLOGIES

Effective date: 20050217

BECN Be: change of holder's name

Owner name: S.A. *SAMES TECHNOLOGIES

Effective date: 20050217

REG Reference to a national code

Ref country code: CH

Ref legal event code: PUE

Owner name: SAMES TECHNOLOGIES

Free format text: SAMES S.A.#Z.I.R.S.T., 13 CHEMIN DE MALACHER#F-38240 MEYLAN (FR) -TRANSFER TO- SAMES TECHNOLOGIES#13 CHEMIN DE MALACHER ZIRST#38240 MEYLAN (FR)

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

REG Reference to a national code

Ref country code: CH

Ref legal event code: PFA

Owner name: SAMES TECHNOLOGIES

Free format text: SAMES TECHNOLOGIES#13 CHEMIN DE MALACHER ZIRST#38240 MEYLAN (FR) -TRANSFER TO- SAMES TECHNOLOGIES#13 CHEMIN DE MALACHER ZIRST#38240 MEYLAN (FR)

BECH Be: change of holder

Owner name: S.A. *SAMES TECHNOLOGIES

Effective date: 20050217

BECN Be: change of holder's name

Owner name: S.A. *SAMES TECHNOLOGIES

Effective date: 20050217

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20080710

Year of fee payment: 16

BERE Be: lapsed

Owner name: S.A. *SAMES TECHNOLOGIES

Effective date: 20090630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090630

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 69310026

Country of ref document: DE

Representative=s name: PATENTANWAELTE HENKEL, BREUER & PARTNER, DE

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20120626

Year of fee payment: 20

Ref country code: DE

Payment date: 20120622

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20120625

Year of fee payment: 20

Ref country code: SE

Payment date: 20120627

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20120625

Year of fee payment: 20

Ref country code: IT

Payment date: 20120629

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 69310026

Country of ref document: DE

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20130608

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20130611

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20130608

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20140828

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20130610