US3782632A - Powder spray gun for spraying different color powders from a powder channel of a spray gun - Google Patents

Powder spray gun for spraying different color powders from a powder channel of a spray gun Download PDF

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Publication number
US3782632A
US3782632A US00277082A US3782632DA US3782632A US 3782632 A US3782632 A US 3782632A US 00277082 A US00277082 A US 00277082A US 3782632D A US3782632D A US 3782632DA US 3782632 A US3782632 A US 3782632A
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US
United States
Prior art keywords
powder
connection
channel
spray gun
connection element
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
US00277082A
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English (en)
Inventor
F Braun
P Ribnitz
W Huber
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.)
Gema AG Apparatebau
Gema Switzerland GmbH
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Gema AG
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Filing date
Publication date
Priority claimed from CH1134571A external-priority patent/CH531900A/de
Application filed by Gema AG filed Critical Gema AG
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Publication of US3782632A publication Critical patent/US3782632A/en
Assigned to RANSBURG-GEMA AG, A SWISS CORP. reassignment RANSBURG-GEMA AG, A SWISS CORP. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: GEMA AG APPARATEBAU, A SWISS CORP.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/14—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas designed for spraying particulate materials
    • B05B7/1404—Arrangements for supplying 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
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/14—Arrangements for controlling delivery; Arrangements for controlling the spray area for supplying a selected one of a plurality of liquids or other fluent materials or several in selected proportions to a spray apparatus, e.g. to a single spray outlet
    • B05B12/1409—Arrangements for controlling delivery; Arrangements for controlling the spray area for supplying a selected one of a plurality of liquids or other fluent materials or several in selected proportions to a spray apparatus, e.g. to a single spray outlet the selection means being part of the discharge apparatus, e.g. part of the spray gun

Definitions

  • connection mechanism comprises a connection element carrying the connections, this connection element containing for each connection a continuous substantially straight connection channel.
  • the connection element and the pistol body member containing the powder dispensing channel can be adjusted relative to one another in such a manner that the connection channels of the connection element can be connected by means of their outlet openings with the inlet opening of the powder dispensing channel in a certain sequence and with a given distribution of the infeed conduits for the powder-conveying air-mixture and, the flushing air at the connections of the connection element the spray gun powder dispensing channel is flushed with flushing air during each color change.
  • the present invention relates to a new and improved powder spray gun or pistol for spraying or coating different color powders from a spray gun-powder dispensing channel and incorporating a connection mechanism possessing a number of connections, at which connection mechanism there can be connected infeed conduits for different powder-conveying air-mixtures and flushing air and through the agency of which there can be delivered to the spray gun-powder dispensing channel a selected powder-conveying air-mixture for spraying or coating purposes and flushing air for cleaning of such spray gun.
  • an infeed mechanism for the purpose of opening a needle valve of the spray gun for the discharge of the color or dye when the atomization air was shut-off.
  • Such infeed mechanisms are unsuitable for powder spray guns since the color powder tends to deposit at certain locations of the channel and the deposited powder can again loosen at some time during spraying of the new color powder, so that after the color change operation there is no longer ensured for spraying of a clean true color.
  • Another and more specific object of the present invention relates to a new and improved construction of powder spray gun having a color change or switching mechanism by means of which as a practical matter there does not occur any color defects or flaws during switch-over from one color to another.
  • Yet a further significant object of the present invention relates to an improved spray gun for spraying dif' ferent color powders incorporating means for effectively switching the spray gun for operation from one powder color to another powder color without any deleterious interblending of the different powder colors.
  • connection mechanism embodies a connection element carrying the connections, this connection element is provided with a continuous linear or straight channel for each connection.
  • the connection element and a pistol body member containing a powder dispensing channel can be adjusted relative to one another in such a manner that the channels of the connection element can be connected by means of their outlet openings with the inlet opening of the powder dispensing channel in a certain sequence and for a corresponding distribution of the infeed conduits for the powder-conveying airmixture and the flushing air at the connections of the connection element the spray gun-powder dispensing channel is flushed with flushing air during each color change.
  • connection element and the pistol body member can possess oppositely situated or confronting surfaces into which open the connection channels and the powder dispensing channel.
  • connection element and the pistol body member can be moved relative to one another along this line for adjusting the outlet openings of the connection channel with respect to the inlet opening of the powder dispensing channel and with an appropriate shape of the pistol body member and whenever an outlet opening is adjusted to the inlet: opening the surface of the pistol body member covers all of the remaining outlet openings.
  • connection channels renders possible a distribution of the infeed conduits feeding the powder-conveying airmixture and the flushing air with respect to the connections of the connection element in such a manner that between each two infeed conduits conveying the pow der there is arranged an infeed conduit conveying flushing air.
  • the powder dispensing channel of the pistol body member is automatically connected for flushing purposes with an infeed conduit for flushing air.
  • connection element and the pistol body member can be planar or flat and the outlet openings of the connection channels can be uniformly distributatively arranged along a circle or an are, so that the connection element can be designed as a circular disk or sector-shaped plate and rotatably mounted at an axis of rotation of the pistol body member.
  • connection element is advantageously designed as a flat or planar slide wherein the outlet openings of the connection channels are located along a straight line.
  • the pistol body member can also be designed in the form of a rod having an axial powder channel, wherein the end of the powder channel is outwardly curved, and wherein the inlet opening is located at a cylindrical jacket surface of the pistol body member at which there is rotatably mounted a connection element in the form of a hollow cylinder.
  • the outlet openings of the connection channels are then located at a periphery or a portion thereof in a uniformly distributed manner at the inner jacket surface of the connection element.
  • the inlet opening of the powder channel is surrounded by a sealing ring which protrudes past the surface of the pistol body member in order to only always seal-off the connection channel which has been momentarily set at the outlet opening and to further maintain a small gap between the surfaces of the connection element and the pistol body member through which leakage air can escape from the flushing air-infeed conduits for continuous flushing purposes.
  • a sealing ring which protrudes past the surface of the pistol body member in order to only always seal-off the connection channel which has been momentarily set at the outlet opening and to further maintain a small gap between the surfaces of the connection element and the pistol body member through which leakage air can escape from the flushing air-infeed conduits for continuous flushing purposes.
  • connection element constructed for instance in the form of a truncated cone thus contains a central connection channel which can be connected at a flushing air-infeed conduit and a number of connection channels arranged about such connection channel which can be connected with the powder infeed conduits.
  • connection element is secured through the agency of a Cardan suspension or mounting to the pistol body member in such a manner that it can be pivoted out ofa starting position in which the central connection channel is located at the inner opening of the powder dispensing channel at the pistol body selectively into positions in which a respective outer connection channel can be connected with the powder dispensing channel.
  • suitable adjustment means such as pneumatic cylinder means or lifting magnets wherein upon switching-in one of them it is possible to pivot the connection element from the starting position into an appropriate working position and upon switching-off the adjustment means such connection element can be again placed back into its starting position in which flushing of the spray gun occurs.
  • connection element is advantageously mounted by means of a Caradan joint at a casing or lining of the pistol body member. This casing renders possible dispensing with a cover for the connection channels conveying the individual powders, since any possibly present powder can be sucked-out of the inner compartment.
  • FIG. 1 is a schematic illustration of a spray installation containing a powder spray gun or pistol
  • FIG. 2 is a longitudinal sectional view through an embodiment of powder spray gun for spraying different color powders and provided with a connection mechanism for switching colors;
  • FIG. 3 is a fragmentary sectional view of the spray gun depicted in FIG. 2, taken substantially along the line IIIIII thereof;
  • FIG. 4 is a schematic illustration of the connection element and gun illustrated in FIG. 2;
  • FIG. 5 is a schematic illustration of a sector-shaped connection element
  • FIG. 6 is a schematic illustration of a connection element which can be displaced relative to the spray gun
  • FIG. 7 is a longitudinal sectional view of a further embodiment of spray gun and the therewith connected connection mechanism
  • FIG. 8 is a longitudinal sectional view of still a further embodiment of spray gun and therewith connected connection mechanism
  • FIG. 9 is an end view of the arrangement depicted in FIG. 8;
  • FIG. 10 is a longitudinal sectional view of a powder spray gun with color switching mechanism of a further exemplary embodiment.
  • FIG. 11 is an end view of the connection element as viewed along the line XIXI of FIG. 10.
  • FIG. 1 serving for the powder coating of articles or the like, such will be seen to incorporate, for instance, six powder containers 1 containing six different color powders.
  • a respective associated injector 2 Conveying air is delivered to each injector 2 by means of a'respective associated conveying line or conduit 4 provided with a respective suitable shut-off valve 3.
  • An infeed conduit and line 5 leads from each injector 2 to a common connection mechanism 7. Additionally, there is also connected with this connection mechanism 7 a flushing air conduit or line 6.
  • a gun or pistol 8 of conventional design is directly mounted in operable association at the connection mechanism 7.
  • Connection mechanism 7 can be adjusted into different positions, so that when assuming a first given position one of the powder infeed conduits 5 is placed in flow communication with the spray gun 8 and there is carried out a coating operation by means of the relevant color powder received from one of the associated containers 1. All of the other powder infeed conduits 5 and also the flushing air conduit 6 are sealed in this first position with respect to the spray gun 8, that is to say, do not flow communicate with the spray gun 8 in this first position of the connecting mechanism 7.
  • the connecting mechanism 7 is first of all adjusted so as to assume a position such that the flushing air-infeed conduit 6 is now connected with the spray gun 8. Consequently, spray gun 8 is flushed by clean air through the agency of the connection mechanism 7. Thereafter, this connection mechanism 7 can be adjusted into a position where coating with a different color can occur.
  • connection element 12 With the embodiment of spray gun 8 and connection mechanism 7 as depicted in the embodiment of FIGS. 2 and 3 there is provided a cover plate 10 at the stationary gun body member 9, of which only a portion has been shown.
  • a bearing pin or journal 11 is fixedly seated at cover plate 10, and a substantially diskshaped connection element or portion 12 is rotatably mounted at such bearing pin 11.
  • This closure element 12 possesses eight connections 13 constructed in the form of studs 13a for the connection of a like number of conduit hoses, such as the schematically illustrated conduit hose 50 of FIG. 2.
  • Each connection 13 is provided with a continuous connection channel 18.
  • the outlet or discharge openings 19 of these channels 18 are all located at an end surface or face of the connection element 12.
  • a respective powder infeed conduit Ae and a flushing air-infeed conduit Sp are alternately connected with the connections 13.
  • the powder infeed conduits Ae and the flushing air-infeed conduits Sp are alternately brought into flow communication with the spray gun-powder dispensing channel 14.
  • connection ring'l5 about the inlet opening 17 of the powder dispensing channel 14, and by means of which sealing ring 15 there is obtained good sealing of the momentarily set connection channel 18.
  • the outlet openings 19 of the remaining connection channels 18 are covered by the closure plate 10, whereby however no sealing ring is provided between such cover plate 10 and the connection element 12, so that there is prevented escape of color powder from the corresponding connection channels, whereas leakage air departing from the flushing air-infeed conduits Ae continuously flushes the gap between the components 10 and 12 and thus also brings about a certain rearward displacement of the color powder out of the associated connection channels.
  • connection element 12 depicted in FIGS. 2 and 4 is of the same size as the connection element 12, so that the space requirements for this arrangement are small.
  • the flexible hoses 50 (only one of which has been shown in FIG. 2) connected with the connection element 12 permit rotation of such element.
  • FIG. 5 illustrates a substantially sector-shaped connection element 12 which is rotatably mounted about a bearing pin 11 and wherein the connections 13 and structed in the form of a slide, wherein the outlet openings 19 of the connection channels 18 are located in a linear row, and at the connections there are alternately connected powder infeed conduits Ae and flushing air delivery conduits Sp.
  • the mode of operation in this case is the. same as the previously described embodiments, wherein only, however, the connection element 12 must be linearly displaced instead of rotated.
  • the cover plate 10 at the pistol body member must be twice as long as the connection element 12, so that during its displacement all connections are covered. With this embodiment the hoses are not rotated and there is possible a so-called sandwich construction for a coating installation having a number of powder spray guns, wherein the guns are grouped together into an assembly or unit.
  • connection element 12 is arranged so as to be stationary and possesses connections 13 at which there can be alternately connected powder infeed conduits Ae and flushing air-delivery conduis Sp.
  • the spray gun body member 9 is arranged in such a way that it resiliently presses against the stationary connection element 12 and thus brings about by means of blind plugs or stoppers 21 a good sealing of all of the connection channels 18.
  • the gun body member 9 is detachable from the connection element 12 and can be rotated in its lifted-off position and the powder dispensing channel 14 extends arcuately from the outside towards the center from the region of the inlet opening 17 and such inlet opening during rotation of the gun body member 9 is alternately brought into connection or flow communication with the different connection channels 18.
  • a hollow, cylindrical stationary connection element 12 possesses connections 13 designed in the form of inclined connection studs, and at which connections 13 there can be alternately connected powder infeed conduits Ae and flushing air-delivery conduits Sp.
  • the cylindrical spray gun body member 9 is rotatably mounted at the connection element 12.
  • the gun body member 9 possesses an arcuate channel portion 22 extending from the periphery up to the center and is provided at its periphery at the region of the connection element 12 with two sealing rings 23. By rotating the gun body member 9 the powder dispensing channel 14 can alternately be placed into flow communication with one of the powder delivery conduits in order to be able to work with a desired color.
  • the channel inlet opening 17 always moves past an intermediately situated flushing air conduit and therefore is cleaned.
  • the sealing rings 23 there is formed an air cushion between the gun body member 9 and the connection element 12, preventing any rubbing or grinding of powder and thus binding of the gun body member 9. This arrangement requires very little space, the hoses are not rotated, and finally a sandwich construction is possible.
  • the gun body member 9 is provided at the region of the inlet opening 17 of the powder dispensing channel 14 with a mouthpiece 24 and is mounted at a casing or lining 25.
  • this casing 25 there is mounted through the agency of a Cardan connection or joint 26 a connection element 12A in such a manner that it can pivot to all sides about its center.
  • the connection element HA is provided with a central connection channel 18A at which there can be connected a stud-like connection 13 for a flushing air-delivery conduit.
  • the flushing air-delivery conduit is in flow communication via the connection channel 18A with the spray gunpowder dispensing channel 14.
  • connection channels 188 are formed at the connection element 12A about such central connection channel 18A, the respective center line of these connection channels 188, as apparent from the drawings, being located upon the surface of a truncated cone.
  • Each of these connection channels 188 extends through a stud-like connection 13 at which there can be connected a powder delivery conduit for the delivery of a color powderconveying air-mixture.
  • the connection element 12A is provided at the discharge side of the connection channels 18A, 188 with a segmented spherical-shaped sealing surface 27, the center of which is located at the point of rotation of the Cardan joint arrangement 26.
  • This sealing surface 27 is bounded by an upstanding edge 28 which at the outside of the outer connection channels 188 extends in arcuate-shaped fashion and in a wedge-like manner between such connection channels, as best seen by referring to FlG. 11. Owing to the cooperative action of the edge 28 with the mouthpiece 24 the deflection or pivotal movement of the connection element 12A is limited in such a manner that in each pivoted position one of the outer connections 18B is in flow communication with the spray gun-powder dispensing channel 14.
  • the deflection or pivoting of the connection element 12A occurs through the agency of pneumatic cylinders 36 which act upon a flange 29 of the connection element 12A and wherein a respective one of such pneumatic cylinders is associated with each outer connection channel 1188.
  • connection element 12A Upon actuating one of the cylinders 30 the connection element 12A is pivoted in such a manner that the associated outer connection channel 188 is connected in flow communication with the powder dispensing channel 14. After switching-off the cylinder 30 connection element 12A returns back into its starting position under the action of any suitable and therefore not particularly illustrated return or restoring force producing means, such as a spring for instance, in which the flushing operation occurs and from which, upon actuating an appropriate cylinder, such can be again moved into a different deflected position.
  • any suitable and therefore not particularly illustrated return or restoring force producing means such as a spring for instance, in which the flushing operation occurs and from which, upon actuating an appropriate cylinder, such can be again moved into a different deflected position.
  • connection element 12A there can be employed other actuating means, such as lifting magnets, for deflecting the connection element 12A.
  • actuating means such as lifting magnets
  • radially directed cylinders 30 for the deflection of the connection element 12A, as such has been illustrated in phantom lines in FIG. 10.
  • a powder spray gun arrangement for spraying different color powders comprising a spray gun including a spray gun body member having a powder dispensing channel for spraying different color powders, a connection mechanism having a number of connections, infeed conduits for different powder-conveying airmixtures and flushing air connectable with said connection mechanism and through the agency of which there can be delivered through the spray gunpowder dispensing channel for spraying purposes a given selected powder-conveying air-mixture and for cleaning of the spray gun flushing air, said connection mechanism comprising a connection element carrying said connections, said connection element being provided with a respective substantially continuous straight connection channel for each connection, each said connection channel having an outlet opening and said powder dispensing channel having an inlet opening, means for mounting said connection element and said spray gun body member having said powder channel so as to be displaceable relative to one another such that said connection channels of the connection element can be selectively connected by means of their outlet openings with the inlet opening of the powder channel in a certain sequence, and with a predetermined distribution of the feed conduits
  • a powder spray gun arrangement for spraying different color powders comprising a spray gun including a spray gun body member having a powder dispensing channel for spraying different color powders, a connection mechanism having a number of connections, infeed conduits for different powder-conveying airmixtures and flushing air connectable with said connection mechanism and through the agency of which there can be delivered through the spray gunpowder dispensing channel for spraying purposes a given selected powder-conveying air-mixture and for cleaning of the spray gun flushing air, said connection mechanism comprising a connection element carrying said connections, said connection element being provided with a respective substantially continuous straight connection channel for each connection, each said connection channel having an outlet opening and said powder dispensing channel having an inlet opening, means for mounting said connection element and said spray gun body member having said powder channel so as to be displaceable relative to one another such that said connection channels of the connection element can be selectively connected by means of their outlet openings with the inlet opening of the powder channel in a certain sequence, and with a predetermined distribution of the infeed conduits for

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  • Spray Control Apparatus (AREA)
US00277082A 1971-08-02 1972-08-01 Powder spray gun for spraying different color powders from a powder channel of a spray gun Expired - Lifetime US3782632A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1134571A CH531900A (de) 1971-08-02 1971-08-02 Pulverspritzpistole zum Verspritzen von verschiedenfarbigen Pulvern aus einem Pistolen-Pulverkanal
CH441772A CH539461A (de) 1971-08-02 1972-03-24 Pulverspritzpistole zum Verspritzen von verschiedenfarbigen Pulvern aus einem Pistolen-Pulverkanal

Publications (1)

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US3782632A true US3782632A (en) 1974-01-01

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US00277082A Expired - Lifetime US3782632A (en) 1971-08-02 1972-08-01 Powder spray gun for spraying different color powders from a powder channel of a spray gun

Country Status (8)

Country Link
US (1) US3782632A (de)
JP (1) JPS5547943B2 (de)
CA (1) CA964242A (de)
CH (1) CH539461A (de)
DE (1) DE2237507B2 (de)
FR (1) FR2149795A5 (de)
GB (1) GB1395548A (de)
IT (1) IT961775B (de)

Cited By (27)

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US3924810A (en) * 1974-11-04 1975-12-09 Ford Motor Co Sprayable material changer apparatus
US4248379A (en) * 1979-08-16 1981-02-03 Nordson Corporation Powder spray color change system
US4263091A (en) * 1980-01-25 1981-04-21 Phillips Petroleum Company Fluid flow control
US4552334A (en) * 1984-03-28 1985-11-12 Kawasaki Steel Corporation Flow change-over valve for the blowing of fluids into molten metal vessel
EP0450877A2 (de) * 1990-03-30 1991-10-09 Nordson Corporation Rotationszerstäuber mit integrierter Farbwechselvorrichtung und Fluiddruckregler
US5215261A (en) * 1991-06-24 1993-06-01 Sames S.A. Electrostatic sprayer installation for powder coating product
EP0858840A1 (de) * 1997-02-12 1998-08-19 Wagner International Ag Einrichtung und Verfahren zum elektrostatischen Pulverbeschichten von Werkstücken
EP1206974A1 (de) * 2000-11-07 2002-05-22 Asahi Sunac Corporation Farbspritzmaschine für die Anwendung mit Pulverfarben
US6651902B2 (en) * 2000-01-14 2003-11-25 Sames Technologies Device for spraying a coating product
EP1372870A1 (de) * 2001-04-02 2004-01-02 ABB Inc. Pulverlackfarbwechselvorrichtung
US6695220B2 (en) * 2001-01-11 2004-02-24 Herman Miller, Inc. Powder spray coating system
US6705545B1 (en) 1998-11-13 2004-03-16 Steelcase Development Corporation Quick color change powder paint system
WO2004050259A1 (en) * 2002-11-27 2004-06-17 Nordson Corporation Manifold mounting arrangement for supplying coating material to an application device
US20050035660A1 (en) * 2003-07-31 2005-02-17 John Santhoff Electromagnetic pulse generator
US20050069059A1 (en) * 2003-09-30 2005-03-31 Ivan Krivokapic Ultra-wideband correlating receiver
US20050263613A1 (en) * 2004-05-14 2005-12-01 Beck Hazel D Multiple reservoir apparatus and methods therefor
US20050279860A1 (en) * 2004-06-03 2005-12-22 Fulkerson Terrence M Color change for powder coating material application system
US20060219807A1 (en) * 2004-06-03 2006-10-05 Fulkerson Terrence M Color changer for powder coating system with remote activation
US20070095852A1 (en) * 2005-11-03 2007-05-03 Murphy Christopher M Multiple color powder paint application
US20080230630A1 (en) * 2007-03-08 2008-09-25 Illinois Tool Works Inc. Color matching system and method
US20120234933A1 (en) * 2011-03-18 2012-09-20 Faurecia Bloc Avant Paint spraying device and method for applying such a device
US20140308442A1 (en) * 2011-12-05 2014-10-16 Akzo Nobel Chemicals International B.V. Device for dosing an additive solution
CN105750115A (zh) * 2014-10-01 2016-07-13 宗经投资股份有限公司 旋转式切换喷头、使用其的多料喷出装置及喷涂方法
CN105964440A (zh) * 2016-07-14 2016-09-28 青岛金光鸿智能机械电子有限公司 快速换色喷涂装置及方法
CN107983558A (zh) * 2017-12-28 2018-05-04 临海市天马装璜材料厂 一种手提式色浆喷涂装置
US20180169683A1 (en) * 2015-06-26 2018-06-21 Gema Switzerland Gmbh Separating powder filter and powder delivery system comprising a separating powder filter
US20180185858A1 (en) * 2015-07-13 2018-07-05 Dürr Systems Ag Coating agent valve

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DE2849261C2 (de) * 1978-11-14 1983-05-05 Ransburg-Gema AG, 9015 St.Gallen Verfahren und Einrichtung zum Sprühbeschichten von Gegenständen mit Pulver
FR2488151A1 (fr) * 1980-08-06 1982-02-12 Hebert Jean Claude Diffuseur electrostatique multi-couleurs pour peinture en poudre
US4508271A (en) * 1982-05-03 1985-04-02 Gress Ronald A Airbrush assembly
US5086978A (en) * 1990-12-31 1992-02-11 Fertig Douglas B Multiple jar turret air brush
US5152431A (en) * 1991-06-21 1992-10-06 Sterling Drug, Inc. Pump apparatus for dispensing a selected one of a plurality of liquids
DE10120077B4 (de) * 2001-04-24 2006-07-27 Dürr Systems GmbH Beschichtungssystem für die automatisierte Beschichtungstechnik
EP2361691A1 (de) * 2010-02-19 2011-08-31 Ramseier Koatings Technologies AG Fluidweiche
JP6374810B2 (ja) * 2015-03-06 2018-08-15 アズビル株式会社 ダクト切替装置

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FR56982E (fr) * 1943-06-21 1952-10-10 Récipient pour la projection de produits liquides ou pulvérulents
US3240225A (en) * 1963-01-17 1966-03-15 Benjamin G Barrows Selecting and purging apparatus
US3377028A (en) * 1966-04-05 1968-04-09 L & A Products Inc Self-sealing connector for multiaperture nozzle
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Publication number Priority date Publication date Assignee Title
US380691A (en) * 1888-04-10 Edwin s
US458762A (en) * 1891-09-01 Variable nozzle
US557878A (en) * 1896-04-07 Carpet-cleaner
US773203A (en) * 1903-08-31 1904-10-25 Eugene H Fosdick Blowpipe.
FR770336A (fr) * 1933-06-08 1934-09-12 Doseur-mélangeur pour tous fluides, liquides ou gazeux et ses applications
FR56982E (fr) * 1943-06-21 1952-10-10 Récipient pour la projection de produits liquides ou pulvérulents
US3240225A (en) * 1963-01-17 1966-03-15 Benjamin G Barrows Selecting and purging apparatus
US3458137A (en) * 1964-08-17 1969-07-29 Hans Behr Apparatus for selective volatilization and application of different substances
US3377028A (en) * 1966-04-05 1968-04-09 L & A Products Inc Self-sealing connector for multiaperture nozzle

Cited By (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3924810A (en) * 1974-11-04 1975-12-09 Ford Motor Co Sprayable material changer apparatus
US4248379A (en) * 1979-08-16 1981-02-03 Nordson Corporation Powder spray color change system
US4263091A (en) * 1980-01-25 1981-04-21 Phillips Petroleum Company Fluid flow control
US4552334A (en) * 1984-03-28 1985-11-12 Kawasaki Steel Corporation Flow change-over valve for the blowing of fluids into molten metal vessel
EP0450877A2 (de) * 1990-03-30 1991-10-09 Nordson Corporation Rotationszerstäuber mit integrierter Farbwechselvorrichtung und Fluiddruckregler
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Also Published As

Publication number Publication date
JPS5547943B2 (de) 1980-12-03
FR2149795A5 (de) 1973-03-30
CA964242A (en) 1975-03-11
GB1395548A (en) 1975-05-29
DE2237507B2 (de) 1980-12-11
JPS4826555A (de) 1973-04-07
DE2237507A1 (de) 1973-02-15
IT961775B (it) 1973-12-10
CH539461A (de) 1973-07-31

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