EP0041975B1 - Verbesserte spritzpistole zum warmspritzen von farben - Google Patents

Verbesserte spritzpistole zum warmspritzen von farben Download PDF

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Publication number
EP0041975B1
EP0041975B1 EP81900009A EP81900009A EP0041975B1 EP 0041975 B1 EP0041975 B1 EP 0041975B1 EP 81900009 A EP81900009 A EP 81900009A EP 81900009 A EP81900009 A EP 81900009A EP 0041975 B1 EP0041975 B1 EP 0041975B1
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EP
European Patent Office
Prior art keywords
housing
air
gun
paint
block
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
Application number
EP81900009A
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English (en)
French (fr)
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EP0041975A1 (de
Inventor
Jean Amiaut
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Individual
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Individual
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
Priority claimed from FR7930910A external-priority patent/FR2473359A1/fr
Priority claimed from FR8023293A external-priority patent/FR2493187A2/fr
Application filed by Individual filed Critical Individual
Priority to AT81900009T priority Critical patent/ATE12190T1/de
Publication of EP0041975A1 publication Critical patent/EP0041975A1/de
Application granted granted Critical
Publication of EP0041975B1 publication Critical patent/EP0041975B1/de
Expired 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
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/12—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages
    • B05B7/1209—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages the controlling means for each liquid or other fluent material being manual and interdependent
    • 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
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/08—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point
    • B05B7/0807—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets
    • B05B7/0815—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets with at least one gas jet intersecting a jet constituted by a liquid or a mixture containing a liquid for controlling the shape of the latter
    • 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
    • B05B7/16—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 incorporating means for heating or cooling the material to be sprayed
    • B05B7/1606—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 incorporating means for heating or cooling the material to be sprayed the spraying of the material involving the use of an atomising fluid, e.g. air
    • B05B7/1613—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 incorporating means for heating or cooling the material to be sprayed the spraying of the material involving the use of an atomising fluid, e.g. air comprising means for heating the atomising fluid before mixing with the material to be sprayed
    • B05B7/1646—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 incorporating means for heating or cooling the material to be sprayed the spraying of the material involving the use of an atomising fluid, e.g. air comprising means for heating the atomising fluid before mixing with the material to be sprayed the material to be sprayed and the atomising fluid being heated by the same source of heat, without transfer of heat between atomising fluid and material to be sprayed

Definitions

  • the present invention relates generally to paint spray guns and it relates more particularly to a spray gun for applying hot paints. It is known that the application by spraying of hot paints has very many and very important advantages compared to the conventional application by spraying of cold paints.
  • Different types of devices which can be adapted to spray guns for applying hot paints, which include heating means, usually electrical resistors, suitable for heating the paint and the air for spraying it.
  • This device is not entirely satisfactory due to the fact that it tends to heat all of the paint contained in the pot. As a result, the paint takes a long time to heat up and its temperature is not uniform.
  • the gun described in FR-A-1 324 780 includes a projection device under which is placed a heating chamber with electrical resistances integrated into the gun and provided with perforated walls for distributing the hot air in movement in an area enveloping the circuit followed. by painting.
  • the apparatus described in US-A-2 976 392 is also a gun for applying hot paints.
  • the object of the invention is to remedy these drawbacks by producing a spray gun for spraying hot paints, comprising an incorporated heating device, made of a material which is poor in heat conductivity and the air nozzle of which can be adjusted angularly without tool and in which the volume of heated paint is reduced to the minimum amount required.
  • the invention also aims to provide a gun for hot spraying of modern paints, which is explosion-proof and thus has all the safety guarantees.
  • the subject of the invention is for this purpose a gun for the application of hot paints, of the type comprising an assembly comprising a cylindrical heating block having a vertical axis and electrical resistances mounted on the body of the gun, a first envelope delimiting with the block a sinuous path for heating the air, and a second envelope delimiting a path for painting, said block, the first envelope and the second envelope being arranged coaxially with respect to each other on said vertical axis in said assembly, means for automatically controlling the temperature of the atomizing air, characterized in that said second envelope having the shape of a bell is pivotally mounted on the top of the first envelope and around it and delimits with means provided on an external surface of the first envelope, a first and second annular paths for the paint communicating with one another and superimposed around said first envelope and communicating with a chamber delimited between end walls of the first and second envelopes, said body being made of insulating material, the second envelope comprising a lateral boss having a passage which communicates with said first and second paths for the paint, this boss being
  • said first winding path for air and said second winding path for painting each comprising an outlet part extending through said heating block.
  • said outlet parts are adjacent.
  • said outlet parts are concentric.
  • the first envelope carries on its external surface projecting means which delimits try with said second envelope the sinuous path for painting, from a point located near the base of said block to a chamber formed at its opposite end, said chamber being connected to the nozzle of the gun by an outlet conduit extending through said parallel heating block and adjacent to the outlet duct of the first winding path for painting.
  • said air outlet duct surrounds the outlet duct of the second winding path for painting.
  • FIG. 1 part of the gun according to the invention, in section on a vertical plane containing the shutter of the paint ejection nozzle.
  • the gun comprises a body 1 having a handle 2 having at its upper part a planar support surface on which is disposed an air and paint heating assembly designated as a whole by the reference 3.
  • the assembly 3 comprises a heating block 4 which according to the example shown is of cylindrical shape, a first envelope 5 having as a whole the shape of a bell and a second envelope 6 also in the shape of a bell, arranged over the casing 5, block 4, casing 5 and casing 6 each comprising a central hole through which extends a stud 7 secured to the body 1 and on the end of which is screwed a nut 8 with a ear which maintains the heating assembly fixed to the body 1 of the gun.
  • a heating block 4 which according to the example shown is of cylindrical shape, a first envelope 5 having as a whole the shape of a bell and a second envelope 6 also in the shape of a bell, arranged over the casing 5, block 4, casing 5 and casing 6 each comprising a central hole through which extends a stud 7 secured to the body 1 and on the end of which is screwed a nut 8 with a ear which maintains the heating assembly fixed to the body 1 of the gun.
  • a trigger 9 is articulated at its upper end in a slot 10 (FIGS. 2 and 5) formed axially in the heating block 4 and actuates the needle shutter 11 in a known manner.
  • An air inlet duct 12 formed in the handle of the gun conducts compressed air into a chamber 13 from which it escapes through a duct 14 formed in the body of the gun through an opening provided in an insulating plate sealing 15, interposed between the heating block 4 and the body 1 of the gun, in a duct 16 divided into two branches 16a, 16b joining in a chamber 17.
  • a device 18 for control and regulation temperature which will be described in more detail below.
  • the chamber 17 comprises several fins 19 formed by machining in the material of the block 4, the end opposite to the conduit 16b delimits a vertical chamber 20 whose lower end communicates with several parallel conduits 21 delimited by a series of fins 22 transverse machined in the block 4 and opening into a horizontal passage 23 which opens in a chamber 24 (Fig. 3) in which extend the fins 25, formed by machining the block 4, the opposite end of which delimits a vertical duct 26, the upper end of which opens into a transverse groove 27 machined in the upper surface of the block 4 to connect the upper end of the duct 26 to the upper end of a chimney 28 extending from top to bottom through block 4 and opening into the lower surface thereof (Fig. 4).
  • the branches 16a, 16b of the conduit 14, the chamber 17, the vertical conduit 20, the conduits 21, the passage 23, the chamber 24, the vertical conduit 26, the groove 27 and the chimney 28 together delimit a first sinuous path which traverses the air intended to spray the paint jets.
  • the lower end of the chimney 28 coincides with a hole provided in the sealing plate 15, which communicates with a passage 29 (Fig. 6) formed in the end of the body 1 of the gun and bringing the air into the spray head T which will be described later.
  • the heating block 4 is disposed inside the first enclosure 5 constituted by a metal element having as a whole the shape of a bowl which according to this example is cylindrical forming a bell covering the block 4 whose upper surface is in contact with the bottom surface of the element 5.
  • the peripheral edge of the casing 5 is slightly flared towards the outside for a purpose which will be described below.
  • the casing 5 comprises a first peripheral bead 34 in radial projection towards the outside, at half its height and extending over almost the entire periphery with the exception of a part 35 cut down by grinding, and a second bead peripheral 36 projecting radially outwards at the end of the casing 5 opposite its peripheral edge 38.
  • the bead 36 also extends roughly over the entire periphery of the envelope 5 with the exception of a part 37 cut down by grinding, diametrically opposite to the part 35.
  • the first envelope 5 is covered by the second envelope 6 constituted by an element which is advantageously made of plastic material molded in the shape of a bowl whose internal diameter is equal to the external diameter (measured at the top of the beads 34 and 36 of the peripheral edge 38) of the first envelope 5.
  • the second envelope 6 includes a lateral boss 39 molded in the vicinity of its edge and comprising a passage 40 whose ends are threaded so as to be able to receive a plug 41 adapted to close either of the ends of the passage 40.
  • the edge of the second envelope 6 covers the flared edge 38 of the first envelope 5 with which it coincides, an anti-friction O-ring seal 42 being provided for sealing the junction between the two envelopes.
  • the passage 40 of the boss 39 can be connected to a paint supply bucket and it is understood that the latter can travel the path defined above in contact with the entire external surface of the first casing 5 heated directly by contact with the heating block 4.
  • the outlet conduit 46 is tightly connected to a chamber 47 formed in the body 1 of the gun in the vicinity of its head T as will be described.
  • the chamber 47 is crossed coaxially by the needle 11 actuated by the trigger 9.
  • a nozzle 48 having a conical end 49 is fixed in known manner coaxially in the chamber 47, the opening of the end 49 being closed by the end of the needle 11.
  • the end of the nozzle 48 is concentric with an opening 50 delimited by a socket 51 screwed into a second socket 52 itself fixed in the end 1 of the body.
  • the air supply passage 29 communicating with the chimney 28 opens into an annular chamber 53 delimited by the end of the body 1 and the second bushing 52 with the nozzle 48.
  • This chamber 53 communicating via radial holes 54 with two passages 55 provided in the two branches 56 of the head T in a conventional manner.
  • the head T which is advantageously made of injection molded plastic material is rotatably mounted between the end of the second nozzle 52 and that of the body 1 of the gun in a manner known per se with the interposition of a gasket.
  • O-ring seal 57 made of anti-friction material between the body 1 and the head T.
  • the duct 55 of each branch 56 has a first air outlet orifice 58 oriented obliquely so as to each direct a first air jet meeting on the extension of the axis of the needle 11, this orifice 58 being located in an intermediate part of each branch 56 between the external end of the latter and the nozzle 52, and a second air outlet orifice 59 provided in the vicinity of the end of each branch and angularly orientable.
  • the orifices 59 are each formed in a cylindrical body 60, embedded in a housing of complementary shape provided for molding at the end of each branch 56, and comprising at one end a radial groove 61, each cylindrical body 60 being rotatably mounted in its housing and can be oriented by means of its projection 61.
  • the assembly of the heating block 4 and the two casings 5, 6 is held on the body of the gun by means of the nut 8, the first casing 5 comprising in its bottom a tapped central hole which can be screwed onto a first part threaded on the stud 7 while the nut 8 is screwed onto the end of the latter so as to seal with the bottom of the second casing 6.
  • the nut 8 is loosened, it is possible to rotate the second envelope 6 around the axis formed by the stud 7 so as to bring the boss 39 in a diametrically opposite position in which it is possible to connect the lower end of the passage 40 to a bucket fixed directly on it.
  • the device In the position shown in FIG. 1 with the lower end of the passage 40 closed by the plug 41, the device is arranged to be fed by gravity by means of a bucket fixed directly on the upper end of the passage 40.
  • the rear end of the needle 11, which is spring loaded in the closed position of the nozzle 48 by means of a spring disposed in the chamber 13, in known manner, comprises a shutter 62 intended to cooperate with a seat 63 to 1 end of the chamber 13 for controlling the passage of air in the duct 14.
  • a groove (not shown) in the shutter 62 in order to allow passage an air stream when the heating resistors are energized and the gun is not actuated. Thanks to this low air flow, the heating block 4 is continuously traversed by a cooling current.
  • FIG. 7 the temperature regulation device 18 shown diagrammatically in FIG. 1.
  • This device can conventionally include a sensor disposed in the branch 16a which in operation receives part of the supply air stream, the other part of which flows in the branch 16b. This sensor is thus cooled by the air intake and cuts the power supply to the resistors and restores it as soon as the temperature has dropped below a predetermined value, this arrangement being conventional.
  • the gun according to the invention comprises a temperature regulating device arranged in the branch 16a which comprises, as shown in FIG. 7, a fixed contact 64 a movable contact 65 carried by a curved metal bimetallic strip 66 mounted fixed by its opposite end.
  • the fixed contact 64 and the bimetallic strip 66 are connected to the conductors 32 and to the resistors 30 via a power source, not shown.
  • the bimetallic strip 66 is disposed in the branch 16a of the conduit 14 and is exposed to contact with part of the air supplying the gun, the remaining part being deflected in the branch 16b.
  • the bimetallic strip 66 is such that, when cold, the contacts 64 and 65 are closed, thus supplying the resistors 30. These heat the block 4 and the heat is communicated to the bimetallic strip 66 which moves aside to open the contacts and interrupt the resistor supply. The supply air continuing to strike the bimetallic strip 66, cools it sufficiently to close the contacts and this cycle is repeated.
  • a multi-way valve designated as a whole by the reference 67 which is adapted to allow to send into the branches 16a and 16b different amounts of different air, for example 20% of the food in branch 16a and 80% in branch 16b or 60% in branch 16a and 40% in branch 16b, etc. It is thus possible to modify the time necessary to cool the bimetallic strip 66 and act on the time during which the heating resistors are supplied.
  • an appropriate control device can also be inserted in the circuits of the resistors 30, thus allowing even finer adjustment of the temperature of the gun.
  • the spray gun can be used with current paints with a high dilution rate whose fog is explosive without any risk of deflagration.
  • the gun described above is compact, easy to handle and can be used either with a gravity feed bucket or with suction in a bucket carried below the device which makes it extremely handy.
  • the gun head is manually adjustable without the aid of any tool and that the gun body made of poor heat conductive plastic makes it possible to use a relatively high heating temperature for painting without any drawbacks. for the operator.

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Claims (7)

1. Pistole zur Warmaufbringung von Farben, welche einen Aufbau, der einen zylindrischen Heizblock (4) mit vertikaler Achse und auf dem Körper der Pistole angebrachten elektrischen Widerständen (30), einen mit dem Block eine gewundene Bahn (16a, 16b, 17, 20, 23-28) zur Erwärmung der Luft bestimmenden ersten Mantel (5) und einen eine Bahn für die Farbe bestimmenden zweiten Mantel (6) umfasst, wobei der Block, der erste Mantel und der zweite Mantel koaxial zueinander auf der vertikalen Achse in dem Aufbau angeordnet sind, Mittel (18, 64, 65) zur automatischen Steuerung der Temperatur der Zerstäuberluft aufweist, dadurch gekennzeichnet, dass der zweite Mantel (6), welcher die Form einer Glocke hat, auf und um den ersten Mantel (5) drehbar angebracht ist und mit auf einer Aussenfläche des ersten Mantels vorgesehenen Mitteln (34, 35, 37) eine erste und eine zweite ringförmige Bahn für die Farbe bestimmt, die miteinander in Verbindung stehen und um den ersten Mantel (5) übereinander liegen und mit einer zwischen den Endwänden des ersten und des zweiten Mantels begrenzten Kammer (45) in Verbindung stehen, wobei der Körper aus isolierendem Werkstoff ist, der zweite Mantel (6) einen seitlichen Buckel (39), welcher einen mit der ersten und der zweiten Bahn für die Farbe in Verbindung stehenden Durchgang (40) aufweist, wobei der Buckel ausgewählt mit einer durch die Schwerkraft verteilten und über dem Körper angeordneten Farbquelle oder einer durch Ansaugen verteilten und unter dem Körper sitzenden Farbquelle verbindbar ist, und Mittel (8) zur Einstellung der Position des zweiten Mantels um die vertikale Achse bezüglich des ersten Mantels und zur Feststellung des zweiten Mantels in der eingestellten Position bezüglich des ersten Mantels aufweist, so dass die Farbquelle in einer bequemen geeigneten Stellung bezüglich des Körpers angeordnet werden kann, wobei die vertikale Achse so bezüglich des Griffes der Pistole angeordnet ist, dass der Durchgang (40) des Buckels (39) in unmittelbare Nachbarschaft zu einer zweiten vertikalen Achse senkrecht zum Griff der Pistole angeordnet werden kann.
2. Pistole nach Anspruch 1, dadurch gekennzeichnet, dass die auf der Aussenfläche des ersten Mantels (5) vorgesehenen Mittel durch Verdickungen (34,35,37) gebildet sind, die über diese Fläche vorspringen und mit dem zweiten Mantel (6) die Bahn der Farbe von einem Punkt in der Nähe der Basis des Blocks (4) bis zu der an einem der Basis gegenüberliegenden Ende des Blocks vorgesehen Kammer bestimmen, wobei die Kammer (45) mit dem Zerstäuberkopf mittels einer Ausgangsleitung (46), welche sich durch den Heizblock (4) erstreckt und vom Ausgangsdurchlass (28) der ersten gewundenen Bahn für die Luft umgeben ist, und Leitungen, welche die Ausgangsleitung mit dem Zerstäuberkopf (T) verbinden, verbunden ist.
3. Pistole nach Anspruch 1, dadurch gekennzeichnet, dass der zweite Mantel (6) auf dem ersten Mantel (5) mittels einer Stiftschraube (7) und eines Verriegelungselements (8) befestigt ist, welches die Mäntel auf dem Block (4) und den Aufbau auf dem oberen Teil des Körpers befestigt.
4. Pistole nach Anspruch 3, dadurch gekennzeichnet, dass der zweite Mantel drehbar auf der Stiftschraube (7) angebracht ist und einen Umfangsrand aufweist, welcher dichtend mit einem Umfangsrand des ersten Mantels (5) in Berührung ist, wenn das Befestigungselement (8) verriegelt ist.
5. Pistole nach Anspruch 1, dadurch gekennzeichnet, dass sie Mittel, welche eine mit der gewundenen Bahn zur Erwärmung der Luft in Verbindung stehende Lufteintrittsleitung bestimmen, und ein Ventil (67) zur Steuerung der Luftzufuhr der Lufteintrittsleitung aufweist, wobei die Mittel zur Einstellung der Temperatur einen im Speisekreis für die Widerstände (30) angeordneten elektrischen Schalter (64, 65) aufweisen, wobei dieser Schalter in einem Teil der Eintrittsleitung angeordnet ist und das Ventil einen dauernd offenen kleinen Abzweigungsdurchgang (66b) zur Verteilung der Luft auf den den Schalter enthaltenen Teil der Eintrittsleitung, auch wenn sich das Ventil in Schliessstellung befindet, aufweist.
6. Pistole nach Anspruch 5, dadurch gekennzeichnet, dass das Ventil ein Differenzventil (67) ist, mit welchem ausgewählt ein einstellbarer Teil der durch die Eintrittsleitung strömenden zugeführten Luft direkt auf die Mittel (66) zur Einstellung der Temperatur und der Rest der zugeführten Luft in eine zweite Leitung (16b), welche um die Mittel zur Einstellung der Temperatur herumgeführt ist, gerichtet werden kann.
7. Pistole nach Anspruch 1, bei welcher der Zerstäuberkopf (T) in an sich bekannter Weise im Bereich des Endes eines jeden seiner seitlichen Zweige (55), die sich auf jeder Seite eines vom Kopf ausgestossenen Farbstrahles erstrecken, eine Luftdrüse (60) mit drehbar angebrachter Mündung (59) aufweist, dadurch gekennzeichnet, dass der Kopf (T) drehbar angebracht ist und dass jeder der Zweige ferner eine feststehende zweite Luftdüse (58) aufweist, welche im Bereich seiner Länge angeordnet und so gerichtet ist, dass sie einen Luftstrahl abgibt, der auf den Farbstrahl unter einem festen Winkel trifft.
EP81900009A 1979-12-18 1980-12-18 Verbesserte spritzpistole zum warmspritzen von farben Expired EP0041975B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81900009T ATE12190T1 (de) 1979-12-18 1980-12-18 Verbesserte spritzpistole zum warmspritzen von farben.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR7930910 1979-12-18
FR7930910A FR2473359A1 (en) 1979-12-18 1979-12-18 Spray gun for hot paint - has electric element embedded in metal block to heat air and paint before they reach spraying head
FR8023293A FR2493187A2 (fr) 1980-10-31 1980-10-31 Perfectionnements concernant le reglage pneumatique du pistolet chauffant
FR8023293 1980-10-31

Publications (2)

Publication Number Publication Date
EP0041975A1 EP0041975A1 (de) 1981-12-23
EP0041975B1 true EP0041975B1 (de) 1985-03-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP81900009A Expired EP0041975B1 (de) 1979-12-18 1980-12-18 Verbesserte spritzpistole zum warmspritzen von farben

Country Status (4)

Country Link
US (1) US4394967A (de)
EP (1) EP0041975B1 (de)
DE (1) DE3070365D1 (de)
WO (1) WO1981001670A1 (de)

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US8784390B2 (en) 2009-12-04 2014-07-22 Sunless, Inc. Skin treatment spray nozzle system for automatic spray gantry
US8790319B2 (en) 2011-07-15 2014-07-29 Sunless, Inc. Method and system for applying a heated skin treatment spray
EP2708288A3 (de) 2012-09-17 2015-05-06 Sunless, Inc. Präzisonspumpsystem für Spritzbehandlungszyklen
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FR1324780A (fr) * 1962-06-12 1963-04-19 Pistolet chauffant par application aérothermique
FR2276103A1 (fr) * 1974-06-26 1976-01-23 Amiaut Jean Dispositif de rechauffage de peinture pour l'application au pistolet
FR2450124A1 (fr) * 1979-03-01 1980-09-26 Amiaut Jean Pistolet chauffant

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3644184A1 (de) * 1986-12-23 1988-07-07 Frech Oskar Gmbh & Co Spruehkopf, insbesondere zum auftragen und verteilen von spruehmittel auf druckgiess- und gesenkschmiedeformen

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US4394967A (en) 1983-07-26
WO1981001670A1 (fr) 1981-06-25
EP0041975A1 (de) 1981-12-23
DE3070365D1 (en) 1985-04-25

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