CH365979A - Rotating spray head - Google Patents
Rotating spray headInfo
- Publication number
- CH365979A CH365979A CH310960A CH310960A CH365979A CH 365979 A CH365979 A CH 365979A CH 310960 A CH310960 A CH 310960A CH 310960 A CH310960 A CH 310960A CH 365979 A CH365979 A CH 365979A
- Authority
- CH
- Switzerland
- Prior art keywords
- product
- head
- hub
- openings
- paint
- Prior art date
Links
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
- B05B5/04—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces
- B05B5/0403—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces characterised by the rotating member
- B05B5/0407—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces characterised by the rotating member with a spraying edge, e.g. like a cup or a bell
Landscapes
- Electrostatic Spraying Apparatus (AREA)
- Medicinal Preparation (AREA)
Description
Tefte rotative de pulv6risation La pr6sente invention a pour objet une t8te rota- tive de pulv6risation <B>ä</B> arke vive de puMrisation, dans Iaquelle la pulv6risation du produit est obtenue par Faction de la force centrifuge avec Faide & un champ 6leetrique, qui sert <B>ä</B> am61iorer cette pulv6ri- sation et<B>ä</B> d6poser les particules sur une contre- 61ectrode qui sera Pobjet <B>ä</B> recouvrir, par exemple dans le cas de la peinture 61ectrostatique. The subject of the present invention is a rotating spray head <B>ä</B> sharp purifying arc, in which the spraying of the product is obtained by the action of centrifugal force with the aid of an electric field. , which is used <B>ä</B> to improve this sputtering and<B>ä</B> to deposit the particles on a counter-electrode which will be the object <B>ä</B> to cover, for example in the case of electrostatic paint.
De telles t8tes sont, comme on le sait, utilisables dans des appareils fixes, mobiles ou portatifs, per- mettant de revetir des objets par voie 61ectrostatique, au moyen de fines particules de matieres, telles que des peintures. Such heads are, as we know, usable in fixed, mobile or portable devices, making it possible to coat objects electrostatically, by means of fine particles of materials, such as paints.
Parmi les facteurs qui interviennent dans les qualit#s techniques et estMäques de Fobjet rev8tu selon cette. m6thode, il en est un qui est de premi#re importance <B>.</B> c'est celui de Parriv6e r6guli#re et uni forme de la peinture, encore <B>ä</B> l'6tat liquide dans la t & e 61ectrostatique, vers Par8te de pulv6risation. Among the factors which intervene in the technical qualities and are marks of the coated object according to this. method, there is one which is of primary importance <B>.</B> it is that of the regular and uniform arrival of the paint, still <B>ä</B> in the liquid state in the electrostatic head, towards the spraying part.
Pour que cette peinture progresse r6guli#rement et soit ainsi r6guli#rement pulv6ris6c et projet6e, ü faut lui assurer une arriv6e progressive vers Far8te de pulv6risation sans variation brusque de direction et sans rfflexions sur les parois de la tete. In order for this paint to progress regularly and thus be regularly sprayed and projected, it must be ensured that it gradually arrives at the spraying point without any sudden variation in direction and without reflections on the walls of the head.
De telles variations brusques de direction ne peuvent qu'ajouter des rAistances inutiles et varia bles, pr6judiciables <B>ä</B> l'#coulement r6gulier de la peinture. Such abrupt changes in direction can only add unnecessary and variable resistance, detrimental <B>ä</B> to the regular flow of the paint.
Quant aux r6flexions sur les parois de la t8te, il faut les 6viter soigneusement, car elles risquent de cr6er des remous dans la cireulation de la pein- ture <B>;</B> ces remous peuvent 8tre tr#s g8nants, notam- ment dans le cas oü lon est amen6 <B>ä</B> utiliser des peintures tr#s denses, telles que le minium, les pein- tures <B>ä</B> l'huile ou <B>ä</B> oxyde de zinc, etc. Or, des re- mous se produisant avec de telles peintures risquent de cr6er des zones sans eirculation, oü ils se produira une s6dimentation de la peinture qui g8nera et pourra m8me obtarer l'arriv6e de la peinture vers Farete de pulv6risation. As for reflections on the walls of the head, they must be carefully avoided, because they risk creating swirls in the waxing of the paint <B>;</B> these swirls can be very disturbing, in particular especially if it is necessary to <B>ä</B> use very dense paints, such as minium, paints <B>ä</B> oil or <B>ä< /B> zinc oxide, etc. However, swirls occurring with such paints run the risk of creating zones without circulation, where sedimentation of the paint will occur which will interfere with and even be able to block the arrival of the paint towards the spraying point.
La pr6sente invention a pour but d'assurer une arriv6e de peintare r6gali#re et progressive vers Far8te de puMrisation. The aim of the present invention is to ensure an even and progressive arrival of paint towards the purifying paste.
Le dessin annex6 repr6sente, <B>ä</B> titre d'exemple, une forme d'ex6eution et deux variantes de la t8te faisant Fobjet de Finvention. The appended drawing represents, <B>ä</B> by way of example, one embodiment and two variants of the head forming the subject of the invention.
La fig. <B>1</B> repr6sente une vue de face deRTI ID="0001.0272" WI="7" HE="4" LX="1855" LY="1528"> cette forme d'ex6cution. fig. <B>1</B> represents a front view of RTI ID="0001.0272" WI="7" HE="4" LX="1855" LY="1528"> this form of execution.
La fig. 2 en est une coupe longitadinale suivant XOY de la fig. <B>1.</B> fig. 2 is a longitudinal section along XOY of FIG. <B>1.</B>
Les fig. <B>3</B> et 4 sont des coupes analogues <B>ä</B> celle de la fig. 2 et concemant des variantes. Figs. <B>3</B> and 4 are sections similar <B>ä</B> to that of fig. 2 and concerning variants.
La t8te <B>1,</B> repr6sent6e aux fig. <B>1</B> et 2,<B>de</B> forme cylindrique, comporte une pi#ce, centrale, ou moyeu 2, pr6sentant en son centre un logement 2, destin6 <B>ä</B> la fixation, par tout moyen connu, de la t8te <B>1</B> sur Forgane (non repr6sent6) qui lui imprime son mou- vement de rotation autour de son axe. Un ajutage 14 muni d'un 6jeeteur <B>16</B> est destin6 <B>ä</B> diriger le produit <B>ä</B> puMriser, par exemple de la peinture, dans la t8te <B>1.</B> The head <B>1,</B> represented in figs. <B>1</B> and 2, <B>of</B> cylindrical shape, comprises a central piece or hub 2, having in its center a housing 2, intended <B>ä</B > fixing, by any known means, of the head <B>1</B> on the organ (not shown) which imparts to it its rotational movement about its axis. A nozzle 14 fitted with a nozzle <B>16</B> is intended to direct the product <B>ä</B> to be sprayed, for example paint, into the head <B >1.</B>
La surface ext6rieure du moyeu comporte plu- sieurs surfaces successives, AB, BC, sWasant pro- gressivement par rapport <B>ä</B> la direction d'arrivge de la peinture qui est sensiblement para116le <B>ä</B> Paxe de rotation de la t8te <B>1,</B> pour aboutir <B>ä</B> de larges ouver- tures <B>3,</B> 4,<B>5, 6</B> par oü ladite peinture s'6chappe vers Far8te de pulv6risation <B>8.</B> The outer surface of the hub comprises several successive surfaces, AB, BC, progressively sWasant with respect to <B>ä</B> the direction of arrival of the paint which is substantially parallel <B>ä</B> Paxis of rotation of the head <B>1,</B> to reach <B>ä</B> wide openings <B>3,</B> 4,<B>5, 6</B > where said paint escapes to spray nozzle <B>8.</B>
<B>A</B> la fig. 2, on da repr6sent6 que deux telles sur- faces, AB, BC, <B>ä</B> l'ext6rieur du moyeu, et<B>ä</B> la fig. <B>1,</B> on n!a repr6sent6 que quatre telles ouvertures, <B>3,</B> 4, <B>5, 6,</B> mais il est bien 6vident que ces chiffres Wont aucun caract#re limitatif. De prif6rence-, ces ouvertures <B>3,</B> 4,<B>5, 6</B> sont in- curv & s en arc de cercle, autour de Faxe<B>0</B> de rota- tion de la tfte. Daus ce meine but, ces ouvertures pr6sentent une largeur radiale relativement faible en amont, et vont en sWasant vers Faval, dans le sens de la circulation de la peinture. De cette fagon, on facilite cette circulation vers Par & e de puMrisation, par Feffet de la force centrifuge. <B>A</B> fig. 2, it has been shown that two such surfaces, AB, BC, <B>ä</B> the outside of the hub, and<B>ä</B> FIG. <B>1,</B> only four such openings have been represented, <B>3,</B> 4, <B>5, 6,</B> but it is obvious that these numbers will not no limiting character. Preferably, these openings <B>3,</B> 4,<B>5, 6</B> are curved in an arc of a circle, around Faxe<B>0</B> of head rotation. For this same purpose, these openings have a relatively small radial width upstream, and go sWasant towards Faval, in the direction of the circulation of the paint. In this way, it facilitates this circulation towards the end of the puMrisation, by the effect of the centrifugal force.
Uentr & amont de ces ouvertures se raccorde au passage <B>7</B> oü circule la peinture qui, gräce <B>ä</B> la con- formation de la surface ext#rieure du moyeu 2, offre une r#sistance minimum <B>ä</B> Ncoulement de la pein- ture et lui assure en outre une arriv6e reguliere <B>:</B> en aucun point de cette circulation, il ne peut se cr & r des remous dus <B>ä</B> des r6flexions de la peinture et Fon bite ainsi les inconv6nients mentionn6s plus haut. The entrance & upstream of these openings is connected to the passage <B>7</B> where the paint circulates which, thanks <B>ä</B> to the conformation of the external surface of the hub 2, offers a r #minimum resistance <B>ä</B> Nflow of the paint and also ensures it a regular arrival <B>:</B> at no point of this circulation, there can be no eddies due to <B>ä</B> reflections of the paint and its impact as well as the disadvantages mentioned above.
Une telle tke, qui peut 8tre r6alis6e en m6tal ou en mati#re semi-conductrice, a donn6 d'excellents r6sultats aux essais. Dans un exemple particulier de r6alisation, la t & e semi-conductrice 6tait constitu6e par une mati#re comportant <B>100</B> parties en poids <B>d' </B> Araldite B<B> </B> et<B>3</B> parties <B>de</B> noir de fum6e. Such a head, which can be made of metal or of semi-conducting material, has given excellent test results. In a particular embodiment, the semiconductor head was made of a material comprising <B>100</B> parts by weight <B>of </B> Araldite B<B> </B > and<B>3</B> parts <B>of</B> lampblack.
Selon la variante de r6alisation repr6sent6e <B>ä</B> la fig. <B>3,</B> on voit que la t8te comporte une pike ext & rieure sensiblement cylindrique creuse <B>11,</B> fix6e au moyeu 12, dont la surface ext6rieure comporte 6ga- lement plusieurs surfaces successives AB, BC, sWa- sant progressivement par rapport <B>ä</B> la direction d7ar- rMe de la peinture. On a repr6sent6 sch6matique- ment en<B>13</B> Faxe d'entralinement en rotation de la t & e. According to the alternative embodiment represented <B>ä</B> in FIG. <B>3,</B> it can be seen that the head comprises a substantially hollow cylindrical outer pike <B>11,</B> fixed to the hub 12, the outer surface of which also comprises several successive surfaces AB, BC, gradually sWa- sing with respect to <B>ä</B> the d7ar- rMe direction of the painting. We have represented schematically in <B>13</B> the entrainment in rotation of the head.
Dans l'exemple repr6sent6, la peinture arrive par un ajutage 14, dirig# de fa#on telle que le jet de peinture qui en sort fasse un angle tres obtus avec Pune des surfaces ext6rieures du moyeu 12. Dans ces conditions, le liquide arrive t & s obliquement sur ces parois, ce qui emp8che toute rfflexion du jet de peinture sur une paroi quelconque de la t8te. In the example shown, the paint arrives through a nozzle 14, directed in such a way that the jet of paint which leaves it forms a very obtuse angle with one of the external surfaces of the hub 12. Under these conditions, the liquid arrives t & s obliquely on these walls, which prevents any reflection of the paint jet on any wall of the head.
Le liquide progresse ainsi r6guli#rement vers les ouvertures <B>15</B> m6nag6es entre le moyeu et la pi#ce ext6rieure <B>11</B> de la tete, et ensuite vers l'ar8te de pul- v6risation <B>18.</B> The liquid thus progresses regularly towards the openings <B>15</B> made between the hub and the outer part <B>11</B> of the head, and then towards the spraying edge. <B>18.</B>
Dans le cas d'arriv#e de la peinture par un aju- tage tel que 14, et pour 6viter un retour en arri#re de cette peinture le long de Fajutage 14, on munit avantageusement cet ajutage d'un 6jecteur <B>16</B> qui coop#re <B>ä</B> diriger le jet de hquide tr#s obliquement sur la surface ext6rieure 6vas#e du moyeu 12 et qui permet en outre d'6viter le mouillage de la conduite d'amen#e de la peinture et, par cons6quent, le retour en arri#re de cette peinture. In the case of arrival of the paint through a nozzle such as 14, and to avoid a return of this paint back along the nozzle 14, this nozzle is advantageously provided with an ejector <B> 16</B> which cooperates <B>ä</B> to direct the jet of liquid very obliquely onto the outer surface 6vas#e of the hub 12 and which also makes it possible to avoid wetting of the pipe. brought in paint and, consequently, the return of this paint.
<B>A</B> la fig. <B>3,</B> Fajutage d'arriv6e 14 a 6t6 repr6sent6 sensiblement paraMle <B>ä</B> Paxe longitudinal de la tke, mais il est 6vident qu'il pourrait 8tre kg#rement in- elin6 par rapport <B>ä</B> cet axe <B>;</B> la condition importante <B>ä</B> remplir est que la peinture arrive tr#s obliquement sur la paroi ext & ieure du moyeu 12, sans subir de variation brusque de direction et sans r6flexion sur une paroi quelconque de la t8te. <B>A</B> fig. <B>3,</B> The inlet nozzle 14 has been shown substantially parallel <B>ä</B> to the longitudinal axis of the head, but it is obvious that it could be slightly <B>ä</B> this axis <B>;</B> the important condition <B>ä</B> to fulfill is that the paint arrives very obliquely on the outer wall of the hub 12, without undergo a sudden change in direction and without reflection on any wall of the head.
Enfin, on a repr#sent# <B>ä</B> la fig. 4 une variante de r6alisation analogue <B>ä</B> celle de la fig. <B>3</B> et convenant en particulier aux t & es destin & s <B>ä</B> un d & it impor- tant de peinture. On voit ainsi que la pi#ce ext6rieure <B>17</B> de la tke, au lieu d' & re cylindrique comme la pi#ce <B>11</B> de la fig. <B>3,</B> est de forme g6n6rale 16g#re- ment tronconique <B>;</B> cette conformation, combin6e avee la surface ext & ieure du moyeu 12 ddulte pr6- cMemment, permet d'obtenir un film de liquide plus mince que dans les t8tes cylindriques et dWiter toute accumulation de peinture <B>ä</B> l'int6rieur de la t8te. Finally, we have represented#<B>ä</B> fig. 4 an alternative embodiment analogous <B>ä</B> to that of FIG. <B>3</B> and particularly suitable for t & es destin & s <B>ä</B> an important d & it of painting. It can thus be seen that the outer part <B>17</B> of the head, instead of being cylindrical like part <B>11</B> in fig. <B>3,</B> has a generally frustoconical shape <B>;</B> this conformation, combined with the external surface of the hub 12 previously deflated, makes it possible to obtain a thinner liquid film than in cylindrical heads and avoid any accumulation of paint <B>ä</B> inside the head.
Bien entendu, on peut 6galement pr6voir un 6jec- teur <B>16,</B> comme dans l'exemple ci-dessus. Of course, it is also possible to provide an ejector <B>16,</B> as in the example above.
Claims (2)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR790762A FR75411E (en) | 1959-03-31 | 1959-03-31 | Apparatus for electrostatic spraying and projection |
| FR793247A FR75634E (en) | 1959-04-27 | 1959-04-27 | Apparatus for electrostatic spraying and projection |
| FR808194A FR76467E (en) | 1959-03-31 | 1959-10-22 | Apparatus for electrostatic spraying and projection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH365979A true CH365979A (en) | 1962-11-30 |
Family
ID=27245250
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH310960A CH365979A (en) | 1959-03-31 | 1960-03-18 | Rotating spray head |
| CH333860A CH362945A (en) | 1959-03-31 | 1960-03-23 | Rotating electrostatic spray and projection head |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH333860A CH362945A (en) | 1959-03-31 | 1960-03-23 | Rotating electrostatic spray and projection head |
Country Status (6)
| Country | Link |
|---|---|
| US (2) | US3063642A (en) |
| BE (1) | BE588913A (en) |
| CH (2) | CH365979A (en) |
| FR (4) | FR1110350A (en) |
| GB (2) | GB917683A (en) |
| NL (2) | NL249797A (en) |
Families Citing this family (40)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3055592A (en) * | 1956-12-17 | 1962-09-25 | Ransburg Electro Coating Corp | Liquid atomizing apparatus |
| FR1110350A (en) * | 1959-03-31 | 1956-02-10 | Sames Mach Electrostat | Apparatus for electrostatic spraying and projection |
| NL270215A (en) * | 1960-11-02 | |||
| US3121533A (en) * | 1961-04-12 | 1964-02-18 | Jr John Sedlacsik | Electrostatic atomizing head |
| US3120736A (en) * | 1961-05-29 | 1964-02-11 | Cosmic Inc | Method and apparatus for colloidal propulsion |
| FR1300822A (en) * | 1961-06-23 | 1962-08-10 | Sames Mach Electrostat | Improvements to liquid spray heads for coating objects |
| US3144209A (en) * | 1961-10-20 | 1964-08-11 | Westinghouse Electric Corp | Rotatable spray apparatus |
| US3219013A (en) * | 1962-05-04 | 1965-11-23 | Gen Motors Corp | Precharging device for electrostatic painting apparatus |
| US3224680A (en) * | 1964-06-11 | 1965-12-21 | Ford Motor Co | Atomizing apparatus having a liquid accumulation cavity |
| GB1125796A (en) * | 1966-05-26 | 1968-08-28 | Aerocoat Sa | Improvements in or relating to methods and apparatus for applying powder coatings to articles |
| US3641971A (en) * | 1967-09-01 | 1972-02-15 | Arvid C Walberg | Apparatus for preventing arcing in an electrostatic coating system |
| SE386841B (en) * | 1973-04-19 | 1976-08-23 | Atlas Copco Ab | ELECTRIC STATUS SPRAYER |
| SE392575B (en) * | 1973-10-04 | 1977-04-04 | Atlas Copco Ab | ELECTRIC STATUS SPRAYER |
| DE2713328A1 (en) * | 1977-03-25 | 1978-10-05 | Gema Ag | DEVICE FOR ELECTROSTATICALLY APPLICATION OF COATING MATERIAL TO OBJECTS |
| DE3001209C2 (en) * | 1980-01-15 | 1985-07-25 | Behr, Hans, 7000 Stuttgart | Device for atomizing liquid paint, in particular paint atomizer |
| JPS5921668B2 (en) * | 1980-02-18 | 1984-05-21 | トヨタ自動車株式会社 | Rotary atomization electrostatic coating equipment |
| JPS56163779A (en) * | 1980-05-23 | 1981-12-16 | Toyota Motor Corp | Rotary atomization electrostatic painting device |
| JPS56115653A (en) * | 1980-02-19 | 1981-09-10 | Toyota Motor Corp | Rotary atomized electrostatic coating device |
| US4398672A (en) * | 1980-03-20 | 1983-08-16 | National Research Development Corporation | Electrostatic spraying |
| JPS56141867A (en) * | 1980-04-04 | 1981-11-05 | Toyota Motor Corp | Rotary atomizing electrostatic coating device |
| JPS6012578B2 (en) * | 1980-04-04 | 1985-04-02 | トヨタ自動車株式会社 | Rotation speed detection device for rotary atomization electrostatic coating equipment |
| JPS56141864A (en) * | 1980-04-04 | 1981-11-05 | Toyota Motor Corp | Rotary atomizing electrostatic coating device |
| JPS56163777A (en) * | 1980-05-23 | 1981-12-16 | Toyota Motor Corp | Rotary atomization electrostatic painting device |
| JPS56166961A (en) * | 1980-05-26 | 1981-12-22 | Toyota Motor Corp | Rotary electrostatic spray painting apparatus |
| JPS56141868A (en) * | 1980-04-04 | 1981-11-05 | Toyota Motor Corp | Rotary atomizing electrostatic coating device |
| JPS56163776A (en) * | 1980-05-21 | 1981-12-16 | Toyota Motor Corp | Rotary atomization electrostatic painting device |
| JPS56163775A (en) * | 1980-05-21 | 1981-12-16 | Toyota Motor Corp | Rotary atomization electrostatic painting device |
| JPS56163774A (en) * | 1980-05-21 | 1981-12-16 | Toyota Motor Corp | Rotary atomization electrostatic painting device |
| FR2483263A1 (en) * | 1980-05-27 | 1981-12-04 | Marchand Bernard | ROTATING ATOMIZING HEAD FOR APPLIANCE APPLIANCES, ELECTROSTATICALLY, OF LIQUID PRODUCTS, SUCH AS, IN PARTICULAR, PAINTS AND VARNISHES |
| US4489894A (en) * | 1981-02-27 | 1984-12-25 | National Research Development Corporation | Inductively charged spraying apparatus |
| JPS57144053A (en) * | 1981-03-04 | 1982-09-06 | Toyota Motor Corp | Rotary atomizing electrostatic coating device |
| DE3478202D1 (en) * | 1983-01-06 | 1989-06-22 | Nat Res Dev | Electrostatic spray head |
| GB8305865D0 (en) * | 1983-03-03 | 1983-04-07 | British Res Agricult Eng | Electrostatic sprayers |
| US4684064A (en) * | 1985-08-19 | 1987-08-04 | Graco Inc. | Centrifugal atomizer |
| US4739935A (en) * | 1986-03-12 | 1988-04-26 | Nordson Corporation | Flexible voltage cable for electrostatic spray gun |
| EP0767005B1 (en) * | 1995-04-06 | 2002-12-18 | Abb K.K. | Rotary atomizing head type coating machine |
| JP3726329B2 (en) * | 1996-02-16 | 2005-12-14 | トヨタ自動車株式会社 | Bell head of rotary atomizing electrostatic coating machine and rotary atomizing electrostatic coating machine |
| US6003785A (en) * | 1997-05-27 | 1999-12-21 | Sames Electrostatic, Inc. | Composite material bell cup |
| US6076751A (en) * | 1998-12-15 | 2000-06-20 | Illinois Tool Works Inc. | Method of charging using nonincendive rotary atomizer |
| US8602326B2 (en) * | 2007-07-03 | 2013-12-10 | David M. Seitz | Spray device having a parabolic flow surface |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2352252A (en) * | 1941-10-31 | 1944-06-27 | Westinghouse Air Brake Co | Sanding control means |
| US2658009A (en) * | 1948-05-13 | 1953-11-03 | Ransburg Electro Coating Corp | Electrostatic coating method and apparatus |
| US2781279A (en) * | 1951-11-26 | 1957-02-12 | Ransburg Electro Coating Corp | Method and apparatus for spray coating of articles |
| US2926106A (en) * | 1956-07-16 | 1960-02-23 | Ransburg Electro Coating Corp | Apparatus and methods for electrostatic coating utilizing an inner electrode to substantially reduce the central void of the annular spray pattern |
| US2901177A (en) * | 1956-08-30 | 1959-08-25 | Edward O Norris | Spraying apparatus |
| FR1110350A (en) * | 1959-03-31 | 1956-02-10 | Sames Mach Electrostat | Apparatus for electrostatic spraying and projection |
-
1954
- 1954-07-24 FR FR1110350D patent/FR1110350A/en not_active Expired
-
1959
- 1959-03-31 FR FR790762A patent/FR75411E/en not_active Expired
- 1959-07-30 FR FR801525A patent/FR76165E/en not_active Expired
- 1959-10-22 FR FR808194A patent/FR76467E/en not_active Expired
-
1960
- 1960-03-18 CH CH310960A patent/CH365979A/en unknown
- 1960-03-21 US US16359A patent/US3063642A/en not_active Expired - Lifetime
- 1960-03-22 BE BE588913A patent/BE588913A/en unknown
- 1960-03-23 CH CH333860A patent/CH362945A/en unknown
- 1960-03-25 NL NL249797D patent/NL249797A/xx unknown
- 1960-03-31 GB GB11386/60A patent/GB917683A/en not_active Expired
- 1960-04-22 US US24159A patent/US3072341A/en not_active Expired - Lifetime
- 1960-04-26 GB GB14595/60A patent/GB932998A/en not_active Expired
- 1960-04-26 NL NL250890D patent/NL250890A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NL249797A (en) | 1964-04-10 |
| FR76467E (en) | 1961-10-20 |
| US3072341A (en) | 1963-01-08 |
| NL250890A (en) | 1964-02-25 |
| US3063642A (en) | 1962-11-13 |
| CH362945A (en) | 1962-06-30 |
| GB932998A (en) | 1963-07-31 |
| BE588913A (en) | 1960-07-18 |
| FR75411E (en) | 1961-06-09 |
| GB917683A (en) | 1963-02-06 |
| FR1110350A (en) | 1956-02-10 |
| FR76165E (en) | 1961-09-22 |
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