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

EP2054161B1 - Automatic spray gun - Google Patents

Automatic spray gun Download PDF

Info

Publication number
EP2054161B1
EP2054161B1 EP07803821A EP07803821A EP2054161B1 EP 2054161 B1 EP2054161 B1 EP 2054161B1 EP 07803821 A EP07803821 A EP 07803821A EP 07803821 A EP07803821 A EP 07803821A EP 2054161 B1 EP2054161 B1 EP 2054161B1
Authority
EP
European Patent Office
Prior art keywords
product
needle
elastic sealing
sprayed
sealing means
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.)
Active
Application number
EP07803821A
Other languages
German (de)
French (fr)
Other versions
EP2054161A1 (en
Inventor
Patrick Ballu
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.)
Exel Industries SA
Original Assignee
Exel Industries 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 Exel Industries SA filed Critical Exel Industries SA
Publication of EP2054161A1 publication Critical patent/EP2054161A1/en
Application granted granted Critical
Publication of EP2054161B1 publication Critical patent/EP2054161B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • B05B7/1254—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages the controlling means being fluid actuated
    • B05B7/1263—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages the controlling means being fluid actuated pneumatically actuated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B05B1/3033—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head
    • B05B1/304—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve
    • B05B1/3046—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve the valve element, e.g. a needle, co-operating with a valve seat located downstream of the valve element and its actuating means, generally in the proximity of the outlet orifice
    • B05B1/306—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve the valve element, e.g. a needle, co-operating with a valve seat located downstream of the valve element and its actuating means, generally in the proximity of the outlet orifice the actuating means being a fluid
    • 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
    • B05B7/1254—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages the controlling means being fluid actuated
    • B05B7/1263—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages the controlling means being fluid actuated pneumatically actuated
    • B05B7/1272—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages the controlling means being fluid actuated pneumatically actuated actuated by gas involved in spraying, i.e. exiting the nozzle, e.g. as a spraying or jet shaping gas

Definitions

  • the invention relates to an automatic spray gun for spraying a product such as an abrasive paint, a lacquer, an enamel, water-soluble or dissolved in a solvent.
  • the invention is particularly useful for high pressure and high frequency spraying of ultraviolet radiation curable paints.
  • This type of automatic pistol comprises a pressurized propellant gas chamber supplied with pressurized propellant gas, generally compressed air, and a product chamber fed with pressurized sprays.
  • a spray nozzle of the pressurized spray product is connected to the product chamber.
  • the product is fed to the front of the gun and exits through a calibrated orifice of the nozzle.
  • a slide through the gas chambers and product and provided at its front end with a needle able to close said nozzle.
  • the opening of the needle is triggered by the action of the propellant, usually compressed air.
  • actuating means generally a pneumatic cylinder, adapted to move in translation to close off or disengage said nozzle.
  • the pneumatic cylinder comprises a piston biased in the closed position by a spring and moved into the open position by the propellant.
  • the propellant gas which is used for spraying, aids in the atomization of the product through the central orifice of the nozzle and forms a concentric jet of orientation formed by peripheral vents.
  • an offset is provided to open the spray air before ejection of the product and to ensure the closure of the nozzle before closing the spray air.
  • the surface of the slider is in contact with the product to be sprayed, which is often abrasive and / or corrosive, as is the case, for example, with enamel.
  • the sealing means may be static or deformable: the static means may be o-rings, scraper seals or similar chevron stops, while the deformable means may comprise a bellows, a membrane or other flexible surface mounted between a fixed part and a moving part of the gun.
  • the document FR 2 863 512 in accordance with the preamble of claim 1, thus describes an automatic spray gun having a flexible bellows on the side of the chamber of product to be sprayed.
  • This flexible bellows is attached to the gun body at its rear end and has a movable front end forming a seal around the needle.
  • the needle comprises a shoulder cooperating with the seal formed by the front end of the bellows.
  • the gun of the document FR 2 863 512 however, has a bellows with turns whose surface is difficult to rinse and clean, especially in the recesses and recesses between the turns.
  • EP 1063018 an automatic membrane gun in which the needle is secured to the membrane and passes therethrough, so as to be connected to a pulsation control member.
  • a first object of the invention is to improve the known state of the art, by providing a new automatic spray gun for the spraying of a product such as an abrasive paint, a lacquer, an enamel, water-soluble or dissolved in a solvent. , easy to rinse and clean.
  • a second object of the invention is to provide a new automatic spray gun for spraying a product such as an abrasive paint, a lacquer, an enamel, water-soluble or dissolved in a solvent, wherein the sealed oscillating means have a low surface in contact with the product to be sprayed.
  • a third object of the invention is to provide a new automatic spray gun for spraying a product such as an abrasive paint, a lacquer, an enamel, water-soluble or dissolved in a solvent, wherein a protective coating of the oscillating means waterproof is no longer essential.
  • the invention relates to an automatic spray gun for spraying a product such as an abrasive paint, a lacquer, an enamel, water-soluble or dissolved in a solvent, comprising a body with a front part defining a chamber of product to be sprayed and a rear part for controlling and admitting propellant, a spray head and a product ejection nozzle controlled by a displaceable needle, and means for controlling the displacement of the needle, an elastic sealing means surrounding the needle between the product to be sprayed and the propellant, being mounted clamped between the front and rear parts of the body, characterized in that the elastic sealing means has an elongated tubular conformation whose inner surface is adjusted to the diameters of the needle and a control slide mounted on the needle for the displacement thereof, to contain the pressure of the product to pulptimiser.
  • a product such as an abrasive paint, a lacquer, an enamel, water-soluble or dissolved in a solvent
  • a body with a front part defining a chamber of
  • an automatic pistol comprises a front portion and a rear portion 1b, at least one of which, 1a or 1b, is made of light metal.
  • the front portion 1a contains a cylindrical sleeve 2 made of abrasion-resistant material, for example stainless steel, which screw-threadedly receives a spray head 3.
  • a cylindrical sleeve 2 made of abrasion-resistant material, for example stainless steel, which screw-threadedly receives a spray head 3.
  • the spray head 3 has a central orifice 3a and a plurality of peripheral orifices 3b or 3c. Through the product outlet orifice 3a and the thrust-gas outlet orifices 3b or 3c, spraying of the product is obtained by spraying the product fed into the gun under constant pressure, in combination with a spraying air supply which in addition to spraying, it makes it possible to adjust the shape and / or the dimensions of the jet of sprayed product.
  • the spray gun according to the invention comprises means for supplying spray air opening near the spray nozzle 4 to improve the spray and to form the jet of the product.
  • the atomizing air is supplied independently of the product outlet by means of a mechanical shift which feeds the atomizing air into an annular chamber formed in the spray head and which communicates with the first set of orifices 3b. or air nozzles opening close to the outlet 3a of the nozzle 4 and with a second set of orifices 3c located in a ring placed at the front end of the gun body.
  • This arrangement allows the orifices of this second set of orifices 3c to direct the spray air jets at a much greater angle to the jet of the product exiting the nozzle 4.
  • the nozzle 4 is shaped as a ball valve 5 constituting an interchangeable module by screwing into the cylindrical jacket 2.
  • the product to be sprayed is fed under constant pressure through a pipe into a feed chamber 7 of product arranged in the front part of the gun and having a substantially cylindrical ring shape and opening directly into a central channel 8 of the spray head 3 which connects the product supply chamber 7 to a spray nozzle 4.
  • the automatic gun uses a needle 9 which closes the outlet of the product through the nozzle 4.
  • the withdrawal of the needle 9 to clear this outlet is controlled by pneumatic control means acting on the piston 10 of a cylinder 11 moving the needle 9 rearwardly.
  • pneumatic control means acting on the piston 10 of a cylinder 11 moving the needle 9 rearwardly.
  • a return spring 12 acts on the piston 10 in the opposite direction to move the needle 9 forward to close the outlet of the product.
  • the spray gun is also provided with means for supplying spray air opening near the spray nozzle 4.
  • These spray air supply means comprise a compressed air pipe connected to an air duct opening into a generally circular air inlet chamber 17 arranged around a valve 16 in the rear part 1b of the body. of the pistol.
  • This air inlet chamber 17 is, via successive annular passages 18 in communication and which extend in the rear parts 1b and before the body, connected to an outer circular chamber 19 arranged in the head 3 spray.
  • This outer chamber 19 is in communication with the atmosphere through the orifices 3b or 3c opening to the front face of the spray head 4.
  • the control piston 10 of the needle 9 is surrounded by a piston 10a coaxial with the piston 10 and prestressed in the closed position by a spring 12a.
  • the forward end of the piston 10a tapers to form a valve valve 16 applied to a seat, formed in or integral with the rear portion 1b, by the pressure of the spring 12a.
  • a predetermined set of displacements is provided between the piston 10 and the piston 10a, so that the movement of the piston 10 is controlled in both directions with a shift by a movement of the piston 10a, at the opening as at the closing.
  • connection between the needle 9 and the piston 10 is provided by a connecting slider 14 passing through the front and rear portions 1b of the gun body.
  • the slider 14 is shaped as a rod screwed at its front end to the needle 9 and secured at its rear end to the piston 10 and to a support plate of the spring 12.
  • the slider 14 is mounted on the needle 9 so as to trap a conformation before 13a of a resilient sealing member 13 against a shoulder 9a of the needle 9 and to prestress in compression the sealing member 13.
  • the rear end 13b of the elastic sealing member 13 is clamped between the front portion or the liner 2 of stainless steel and the rear portion 1b of the gun body to provide a recess and a static seal.
  • the elongation and shortening of the member 13 can be performed at high operating frequencies, close to 2 Hz, while ensuring a lifetime of 10 million cycles at high pressures of the order of 120 bar.
  • the elastic sealing member 13 has an elongated tubular conformation, whose inner surface is adjusted to the diameters of the needle and the slide, to contain the pressure exerted by the product to be sprayed on the outer surface of the member 13.
  • the elongate sealing member 13 is constituted in the form of a tubular sleeve with two ends 13a, 13b bulged.
  • the front end 13a is bulged radially internally, while the rear end 13b is bulged radially outwardly.
  • the stroke of the needle 9 is low, of the order of two millimeters.
  • the variation of the radial dimensions is even smaller of the order of one tenth of a millimeter, which allows the use at high operating frequencies, of the order of 2 Hz.
  • the continuously concave shape of the outer surface of the sealing member 13 facilitates the rinsing and cleaning of this outer surface and eliminates the rinsing and cleaning difficulties encountered with the bellows and membranes of the prior art.
  • the substantially cylindrical shape of the outer surface of the sleeve 13 also reduces the area in contact with the product to be sprayed, compared with the bellows and membranes of the prior art.
  • the material used for the manufacture of the sleeve 13 may be a polyurethane, in the case of a specification of resistance to water-soluble products.
  • Polyurethanes are economical and easy to form, preferably by molding, or possibly by machining.
  • the sleeve 13 may be made of perfluoroelastomer material with high chemical inertness.
  • a perfluoroelastomer used is a perfluoroelastomer specially formulated for high pressure medium and explosive decompression conditions, which is satisfactory.
  • the material used for the sleeve 13 may be modified without departing from the scope of the present invention and may optionally be composed of a metallic or non-metallic material.

Landscapes

  • Nozzles (AREA)
  • Sorption Type Refrigeration Machines (AREA)
  • Particle Formation And Scattering Control In Inkjet Printers (AREA)

Abstract

An automatic spray gun includes a nozzle (4) for ejecting the product that is to be sprayed, controlled by a needle valve (9), and means (14, 10) for controlling the movement of the needle (9). A tabular elastic sealing means (13) surrounds the needle valve (9) and is mounted trapped between the front (1a) and rear (1b) parts of the body. The interior surface of the tabular means (13) is tailored to the diameters of the needle valve (9) and of a control slide (14) mounted on the needle valve in order to move the needle thereof.

Description

L'invention est relative à un pistolet automatique pour la pulvérisation d'un produit tel qu'une peinture abrasive, une laque, un émail, hydrosoluble ou dissous dans un solvant.The invention relates to an automatic spray gun for spraying a product such as an abrasive paint, a lacquer, an enamel, water-soluble or dissolved in a solvent.

L'invention est particulièrement utile pour la pulvérisation à haute pression et à fréquence élevée de peintures réticulables au rayonnement ultraviolet.The invention is particularly useful for high pressure and high frequency spraying of ultraviolet radiation curable paints.

Ce genre de pistolet automatique comporte une chambre à gaz propulseur sous pression alimentée en gaz propulseur sous pression, généralement de l'air comprimé, et une chambre de produit alimentée en produit à pulvériser sous pression.This type of automatic pistol comprises a pressurized propellant gas chamber supplied with pressurized propellant gas, generally compressed air, and a product chamber fed with pressurized sprays.

Une buse de pulvérisation du produit à pulvériser sous pression est reliée à la chambre de produit. Le produit est alimenté à l'avant du pistolet et sort par un orifice calibré de la buse.A spray nozzle of the pressurized spray product is connected to the product chamber. The product is fed to the front of the gun and exits through a calibrated orifice of the nozzle.

De plus, à l'intérieur du pistolet est prévu un coulisseau traversant les chambres de gaz et de produit et pourvu à son extrémité avant d'un pointeau apte à obturer ladite buse.In addition, inside the gun is provided a slide through the gas chambers and product and provided at its front end with a needle able to close said nozzle.

L'ouverture du pointeau est déclenchée par l'action du gaz propulseur, généralement de l'air comprimé.The opening of the needle is triggered by the action of the propellant, usually compressed air.

A son extrémité arrière, le coulisseau est rendu solidaire de moyens d'actionnement, généralement un vérin pneumatique, aptes à le déplacer en translation pour obturer ou dégager ladite buse. Le vérin pneumatique comporte un piston rappelé en position de fermeture par un ressort et déplacé en position d'ouverture par le gaz propulseur.At its rear end, the slider is secured to actuating means, generally a pneumatic cylinder, adapted to move in translation to close off or disengage said nozzle. The pneumatic cylinder comprises a piston biased in the closed position by a spring and moved into the open position by the propellant.

Pour éviter que, le long du coulisseau, du gaz propulseur passe de la chambre de gaz à la chambre de produit et, inversement, que du produit à pulvériser passe de la chambre de produit à la chambre de gaz, on prévoit des moyens oscillants étanches traversés par ledit coulisseau.In order to prevent propellant passing along the slide from the gas chamber to the product chamber and, conversely, that the product to be sprayed passes from the product chamber to the gas chamber, tight oscillating means are provided. traversed by said slider.

Pendant la pulvérisation du produit, le gaz propulseur, dédié à la pulvérisation, aide à l'atomisation du produit par l'orifice central de la buse et forme un jet concentrique d'orientation formé par des évents périphériques.During the spraying of the product, the propellant gas, which is used for spraying, aids in the atomization of the product through the central orifice of the nozzle and forms a concentric jet of orientation formed by peripheral vents.

Dans un tel pistolet automatique connu, ledit coulisseau coulisse à chaque fois qu'il est nécessaire d'ouvrir et de fermer la buse.In such a known automatic gun, said slide slides whenever it is necessary to open and close the nozzle.

De manière connue, un décalage est prévu pour ouvrir l'air de pulvérisation avant l'éjection du produit et pour assurer l'obturation de la buse avant la fermeture de l'air de pulvérisation.In known manner, an offset is provided to open the spray air before ejection of the product and to ensure the closure of the nozzle before closing the spray air.

Du côté de la buse, la surface du coulisseau est au contact du produit à pulvériser, qui est souvent abrasif et/ou corrosif, comme cela est par exemple le cas pour l'émail.On the side of the nozzle, the surface of the slider is in contact with the product to be sprayed, which is often abrasive and / or corrosive, as is the case, for example, with enamel.

Les moyens d'étanchéité peuvent être statiques ou déformables : les moyens statiques peuvent être des joints toriques, des joints racleurs ou arrêts analogues à chevrons, tandis que les moyens déformables peuvent comporter un soufflet, une membrane ou autre surface flexible montée entre une partie fixe et une partie mobile du pistolet.The sealing means may be static or deformable: the static means may be o-rings, scraper seals or similar chevron stops, while the deformable means may comprise a bellows, a membrane or other flexible surface mounted between a fixed part and a moving part of the gun.

Le document FR 2 863 512 , en accord avec le preambule de la revendication 1, décrit ainsi un pistolet automatique de pulvérisation comportant un soufflet souple du côté de la chambre de produit à pulvériser. Ce soufflet souple est fixé au corps du pistolet à son extrémité arrière et comporte une extrémité avant mobile formant un joint autour de l'aiguille.The document FR 2 863 512 , in accordance with the preamble of claim 1, thus describes an automatic spray gun having a flexible bellows on the side of the chamber of product to be sprayed. This flexible bellows is attached to the gun body at its rear end and has a movable front end forming a seal around the needle.

L'aiguille comporte un épaulement coopérant avec le joint formé par l'extrémité avant du soufflet.The needle comprises a shoulder cooperating with the seal formed by the front end of the bellows.

Le pistolet du document FR 2 863 512 comporte cependant un soufflet à spires dont la surface est difficile à rincer et à nettoyer, en particulier dans les creux et recoins compris entre les spires.The gun of the document FR 2 863 512 however, has a bellows with turns whose surface is difficult to rinse and clean, especially in the recesses and recesses between the turns.

On connaît également du document EP 1063018 un pistolet automatique à membrane dans lequel le pointeau est solidaire de la membrane et traverse celle-ci, de manière à être relié à un organe de commande de pulsation.Document is also known EP 1063018 an automatic membrane gun in which the needle is secured to the membrane and passes therethrough, so as to be connected to a pulsation control member.

Cependant, en raison de la surface importante de la membrane en contact avec le produit, il est nécessaire de la protéger par un revêtement, par exemple par une couche de polytétrafluoréthylène.However, because of the large surface area of the membrane in contact with the product, it is necessary to protect it by a coating, for example by a layer of polytetrafluoroethylene.

Un premier but de l'invention est de perfectionner l'état de la technique connu, en fournissant un nouveau pistolet automatique pour la pulvérisation d'un produit tel qu'une peinture abrasive, une laque, un émail, hydrosoluble ou dissous dans un solvant, facile à rincer et à nettoyer.A first object of the invention is to improve the known state of the art, by providing a new automatic spray gun for the spraying of a product such as an abrasive paint, a lacquer, an enamel, water-soluble or dissolved in a solvent. , easy to rinse and clean.

Un deuxième but de l'invention est de fournir un nouveau pistolet automatique pour la pulvérisation d'un produit tel qu'une peinture abrasive, une laque, un émail, hydrosoluble ou dissous dans un solvant, dans lequel les moyens oscillants étanches présentent une faible surface au contact du produit à pulvériser.A second object of the invention is to provide a new automatic spray gun for spraying a product such as an abrasive paint, a lacquer, an enamel, water-soluble or dissolved in a solvent, wherein the sealed oscillating means have a low surface in contact with the product to be sprayed.

Un troisième but de l'invention est de fournir un nouveau pistolet automatique pour la pulvérisation d'un produit tel qu'une peinture abrasive, une laque, un émail, hydrosoluble ou dissous dans un solvant, dans lequel un revêtement de protection des moyens oscillants étanches n'est plus indispensable.A third object of the invention is to provide a new automatic spray gun for spraying a product such as an abrasive paint, a lacquer, an enamel, water-soluble or dissolved in a solvent, wherein a protective coating of the oscillating means waterproof is no longer essential.

L'invention a pour objet un pistolet automatique pour la pulvérisation d'un produit tel qu'une peinture abrasive, une laque, un émail, hydrosoluble ou dissous dans un solvant, comportant un corps avec une partie avant définissant une chambre de produit à pulvériser et une partie arrière de commande et d'admission de gaz propulseur, une tête de pulvérisation et une buse d'éjection de produit commandée par un pointeau déplaçable, ainsi que des moyens de commande de déplacement du pointeau, un moyen élastique d'étanchéité entourant le pointeau entre le produit à pulvériser et le gaz propulseur, en étant monté pincé entre les parties avant et arrière du corps, caractérisé par le fait que le moyen élastique d'étanchéité présente une conformation tubulaire allongée dont la surface intérieure est ajustée aux diamètres du pointeau et d'un coulisseau de commande monté sur le pointeau pour le déplacement de celui-ci, pour contenir la pression du produit à pulvériser.The invention relates to an automatic spray gun for spraying a product such as an abrasive paint, a lacquer, an enamel, water-soluble or dissolved in a solvent, comprising a body with a front part defining a chamber of product to be sprayed and a rear part for controlling and admitting propellant, a spray head and a product ejection nozzle controlled by a displaceable needle, and means for controlling the displacement of the needle, an elastic sealing means surrounding the needle between the product to be sprayed and the propellant, being mounted clamped between the front and rear parts of the body, characterized in that the elastic sealing means has an elongated tubular conformation whose inner surface is adjusted to the diameters of the needle and a control slide mounted on the needle for the displacement thereof, to contain the pressure of the product to pulp vériser.

Selon d'autres caractéristiques alternatives de l'invention :

  • le moyen élastique d'étanchéité est fixé à son extrémité avant de manière à emprisonner celle-ci contre un épaulement du pointeau et à précontraindre en compression le moyen élastique d'étanchéité.
  • le moyen élastique est monté pincé contre une partie par vissage d'une chemise cylindrique.
  • la chemise cylindrique de pincement du moyen élastique d'étanchéité définit la chambre de produit à pulvériser.
  • le moyen élastique d'étanchéité présente une conformation externe continûment concave au contact du produit à pulvériser.
  • la course du pointeau est faible, de l'ordre de plusieurs millimètres et la variation des dimensions radiales du moyen élastique d'étanchéité est faible, de l'ordre de plusieurs dixièmes de millimètre.
  • le moyen élastique d'étanchéité présente une conformation en manchon, avec une partie avant renflée radialement intérieurement et une partie arrière renflée radialement extérieurement.
  • le moyen élastique d'étanchéité est fabriqué en un matériau élastomère perfluoré.
  • des moyens de commande coopèrent avec un décalage mécanique correspondant à un jeu et assurant l'ouverture du gaz propulseur avant l'ouverture du produit à pulvériser et la fermeture du produit à pulvériser avant la fermeture du gaz propulseur.
According to other alternative features of the invention:
  • the elastic sealing means is fixed at its front end so as to trap it against a shoulder of the needle and to prestress in compression the elastic sealing means.
  • the elastic means is mounted clamped against a portion by screwing a cylindrical liner.
  • the cylindrical pinch sleeve of the elastic sealing means defines the product chamber to be sprayed.
  • the elastic sealing means has an external conformation continuously concave in contact with the product to be sprayed.
  • the stroke of the needle is small, of the order of several millimeters and the variation of the radial dimensions of the elastic sealing means is small, of the order of several tenths of a millimeter.
  • the elastic sealing means has a sleeve-shaped conformation, with a front part bulging radially internally and a rear part bulging radially outwardly.
  • the elastic sealing means is made of a perfluoroelastomer material.
  • control means cooperate with a mechanical shift corresponding to a game and ensuring the opening of the propellant gas before the opening of the product to be sprayed and the closure of the product to be sprayed before closing the propellant.

L'invention sera mieux comprise grâce à la description qui va suivre donnée à titre d'exemple non limitatif en référence aux dessins annexés dans lesquels :

  • la figure 1 représente schématiquement une vue en coupe longitudinale dans le sens de la ligne II-II de la figure 2 d'un pistolet automatique selon l'invention.
  • la figure 2 représente schématiquement une vue de dessus dans le sens de la flèche I de la figure 1 d'un pistolet automatique selon l'invention.
The invention will be better understood from the following description given by way of nonlimiting example with reference to the accompanying drawings in which:
  • the figure 1 schematically represents a view in longitudinal section in the direction of the line II-II of the figure 2 of an automatic pistol according to the invention.
  • the figure 2 schematically represents a view from above in the direction of the arrow I of the figure 1 of an automatic pistol according to the invention.

En référence à la figure 1, un pistolet automatique selon l'invention comporte une partie avant la et une partie arrière 1b, dont au moins l'une, 1a ou 1b, est réalisée en métal léger.With reference to the figure 1 , an automatic pistol according to the invention comprises a front portion and a rear portion 1b, at least one of which, 1a or 1b, is made of light metal.

La partie avant 1a contient une chemise 2 cylindrique en matériau résistant à l'abrasion, par exemple en acier inoxydable, qui reçoit par vissage une tête 3 de pulvérisation.The front portion 1a contains a cylindrical sleeve 2 made of abrasion-resistant material, for example stainless steel, which screw-threadedly receives a spray head 3.

La tête 3 de pulvérisation comporte un orifice central 3a et plusieurs orifices 3b ou 3c périphériques. Grâce à l'orifice 3a de sortie du produit et aux orifices 3b ou 3c de sortie de gaz propulseur, la pulvérisation du produit est obtenue par pulvérisation du produit alimenté dans le pistolet sous pression constante, en combinaison avec une alimentation en air de pulvérisation qui, outre la pulvérisation, permet de régler la forme et/ou les dimensions du jet de produit pulvérisé.The spray head 3 has a central orifice 3a and a plurality of peripheral orifices 3b or 3c. Through the product outlet orifice 3a and the thrust-gas outlet orifices 3b or 3c, spraying of the product is obtained by spraying the product fed into the gun under constant pressure, in combination with a spraying air supply which in addition to spraying, it makes it possible to adjust the shape and / or the dimensions of the jet of sprayed product.

Le pistolet de pulvérisation selon l'invention comporte des moyens d'alimentation en air de pulvérisation débouchant à proximité de la buse 4 de pulvérisation pour améliorer la pulvérisation et pour former le jet du produit.The spray gun according to the invention comprises means for supplying spray air opening near the spray nozzle 4 to improve the spray and to form the jet of the product.

L'air de pulvérisation est alimenté indépendamment de la sortie du produit à l'aide d'un décalage mécanique qui alimente l'air de pulvérisation dans une chambre annulaire formée dans la tête de pulvérisation et qui communique avec le premier jeu d'orifices 3b ou ajutages d'air débouchant tout près de la sortie 3a de la buse 4 et avec un deuxième jeu d'orifices 3c situé dans une couronne placée à l'extrémité avant du corps du pistolet. Cet agencement permet aux orifices de ce deuxième jeu d'orifices 3c de diriger les jets d'air de pulvérisation sous un angle beaucoup plus grand vers le jet du produit sortant de la buse 4.The atomizing air is supplied independently of the product outlet by means of a mechanical shift which feeds the atomizing air into an annular chamber formed in the spray head and which communicates with the first set of orifices 3b. or air nozzles opening close to the outlet 3a of the nozzle 4 and with a second set of orifices 3c located in a ring placed at the front end of the gun body. This arrangement allows the orifices of this second set of orifices 3c to direct the spray air jets at a much greater angle to the jet of the product exiting the nozzle 4.

La buse 4 est conformée en clapet à bille 5 constituant un module interchangeable par vissage dans la chemise 2 cylindrique.The nozzle 4 is shaped as a ball valve 5 constituting an interchangeable module by screwing into the cylindrical jacket 2.

Le produit à pulvériser est alimenté sous pression constante par un tuyau dans une chambre d'amenée 7 de produit aménagée dans la partie avant du pistolet et ayant une forme sensiblement en anneau cylindrique et débouchant directement dans un canal central 8 de la tête 3 de pulvérisation qui relie la chambre d'amenée 7 de produit à une buse 4 de pulvérisation.The product to be sprayed is fed under constant pressure through a pipe into a feed chamber 7 of product arranged in the front part of the gun and having a substantially cylindrical ring shape and opening directly into a central channel 8 of the spray head 3 which connects the product supply chamber 7 to a spray nozzle 4.

Pour régler l'amenée du produit vers la buse 4 et surtout pour couper cette amenée lorsque le pistolet n'est plus actionné, le pistolet automatique selon l'invention utilise un pointeau 9 qui obture la sortie du produit au travers de la buse 4.To regulate the supply of the product to the nozzle 4 and especially to cut this supply when the gun is no longer actuated, the automatic gun according to the invention uses a needle 9 which closes the outlet of the product through the nozzle 4.

Le retrait du pointeau 9 pour dégager cette sortie est commandé par des moyens de commande pneumatiques qui agissent sur le piston 10 d'un vérin 11 déplaçant le pointeau 9 vers l'arrière. Lorsque les moyens de commande pneumatiques ne sont plus actionnés, un ressort 12 de rappel agit sur le piston 10 dans le sens opposé pour déplacer le pointeau 9 vers l'avant afin de fermer la sortie du produit.The withdrawal of the needle 9 to clear this outlet is controlled by pneumatic control means acting on the piston 10 of a cylinder 11 moving the needle 9 rearwardly. When the pneumatic control means are no longer actuated, a return spring 12 acts on the piston 10 in the opposite direction to move the needle 9 forward to close the outlet of the product.

Lorsque le piston 10 est repoussé par une pulsation d'air de commande vers l'arrière, en comprimant le ressort 12 jusqu'à sa position reculée, l'extrémité du pointeau 9 libère la bille 5 et dégage l'accès à la buse 4 de pulvérisation pour le produit sous pression qui passe de la chambre d'entrée 7 de produit à la buse 4 par l'espacement annulaire défini entre la paroi interne du canal central 8 et la face externe du pointeau 9.When the piston 10 is pushed by a control air pulsation towards the rear, by compressing the spring 12 to its retracted position, the end of the needle 9 releases the ball 5 and releases the access to the nozzle 4 for spraying the product under pressure which passes from the product inlet chamber 7 to the nozzle 4 by the spacing ring defined between the inner wall of the central channel 8 and the outer face of the needle 9.

Afin d'améliorer la pulvérisation et de mieux former le jet de produit pulvérisé qui sort de la buse 4 de pulvérisation, le pistolet est également pourvu de moyens d'alimentation en air de pulvérisation débouchant à proximité de la buse 4 de pulvérisation. Ces moyens d'alimentation en air de pulvérisation comportent un tuyau d'air comprimé connecté à un conduit d'air débouchant dans une chambre d'entrée d'air globalement circulaire 17 aménagée autour d'une vanne 16 dans la partie arrière 1b du corps du pistolet. Cette chambre d'entrée d'air 17 est, par l'intermédiaire de passages annulaires 18 successifs en communication et qui s'étendent dans les parties arrière 1b et avant la du corps, reliée à une chambre circulaire externe 19 aménagée dans la tête 3 de pulvérisation. Cette chambre externe 19 est en communication avec l'atmosphère par les orifices 3b ou 3c débouchant à la face avant de la tête de pulvérisation 4.In order to improve the spraying and to better form the jet of sprayed product coming out of the spray nozzle 4, the spray gun is also provided with means for supplying spray air opening near the spray nozzle 4. These spray air supply means comprise a compressed air pipe connected to an air duct opening into a generally circular air inlet chamber 17 arranged around a valve 16 in the rear part 1b of the body. of the pistol. This air inlet chamber 17 is, via successive annular passages 18 in communication and which extend in the rear parts 1b and before the body, connected to an outer circular chamber 19 arranged in the head 3 spray. This outer chamber 19 is in communication with the atmosphere through the orifices 3b or 3c opening to the front face of the spray head 4.

Le piston 10 de commande du pointeau 9 est entouré par un piston 10a coaxial au piston 10 et précontraint en position fermée par un ressort 12a.The control piston 10 of the needle 9 is surrounded by a piston 10a coaxial with the piston 10 and prestressed in the closed position by a spring 12a.

L'extrémité avant du piston 10a va en se rétrécissant pour former une vanne 16 à soupape appliquée sur un siège, formé dans ou solidaire de la partie arrière 1b, par la pression du ressort 12a.The forward end of the piston 10a tapers to form a valve valve 16 applied to a seat, formed in or integral with the rear portion 1b, by the pressure of the spring 12a.

Un jeu prédéterminé j de déplacement est prévu entre le piston 10 et le piston 10a, de manière que le mouvement du piston 10 soit commandé dans les deux sens avec un décalage par un mouvement du piston 10a, à l'ouverture comme à la fermeture.A predetermined set of displacements is provided between the piston 10 and the piston 10a, so that the movement of the piston 10 is controlled in both directions with a shift by a movement of the piston 10a, at the opening as at the closing.

La liaison entre le pointeau 9 et le piston 10 est assurée par un coulisseau 14 de liaison traversant les parties avant la et arrière 1b du corps du pistolet.The connection between the needle 9 and the piston 10 is provided by a connecting slider 14 passing through the front and rear portions 1b of the gun body.

Le coulisseau 14 est conformé en tige vissée à son extrémité avant sur le pointeau 9 et solidarisée à son extrémité arrière au piston 10 et à un plateau d'appui du ressort 12.The slider 14 is shaped as a rod screwed at its front end to the needle 9 and secured at its rear end to the piston 10 and to a support plate of the spring 12.

Le coulisseau 14 est monté sur le pointeau 9 de manière à emprisonner une conformation avant 13a d'un organe élastique d'étanchéité 13 contre un épaulement 9a du pointeau 9 et à précontraindre en compression l'organe 13 d'étanchéité. L'extrémité arrière 13b de l'organe élastique 13 d'étanchéité est pincée entre la partie avant la ou sa chemise 2 en acier inoxydable et la partie arrière 1b du corps du pistolet, pour assurer un encastrement et une étanchéité statique.The slider 14 is mounted on the needle 9 so as to trap a conformation before 13a of a resilient sealing member 13 against a shoulder 9a of the needle 9 and to prestress in compression the sealing member 13. The rear end 13b of the elastic sealing member 13 is clamped between the front portion or the liner 2 of stainless steel and the rear portion 1b of the gun body to provide a recess and a static seal.

Du fait de l'élasticité de l'organe 13 d'étanchéité, l'allongement et le raccourcissement de l'organe 13 peuvent s'effectuer à des fréquences d'actionnement élevées, voisines de 2Hz, tout en assurant une durée de vie de 10 millions de cycles à des pressions élevées de l'ordre de 120 bar.Due to the elasticity of the sealing member 13, the elongation and shortening of the member 13 can be performed at high operating frequencies, close to 2 Hz, while ensuring a lifetime of 10 million cycles at high pressures of the order of 120 bar.

Avantageusement, l'organe 13 élastique d'étanchéité présente une conformation tubulaire allongée, dont la surface intérieure est ajustée aux diamètres du pointeau et du coulisseau, pour contenir la pression exercée par le produit à pulvériser sur la surface extérieure de l'organe 13.Advantageously, the elastic sealing member 13 has an elongated tubular conformation, whose inner surface is adjusted to the diameters of the needle and the slide, to contain the pressure exerted by the product to be sprayed on the outer surface of the member 13.

De préférence, l'organe 13 allongé d'étanchéité est constitué sous forme d'un manchon tubulaire à deux extrémités 13a, 13b renflées.Preferably, the elongate sealing member 13 is constituted in the form of a tubular sleeve with two ends 13a, 13b bulged.

L'extrémité avant 13a est renflée radialement intérieurement, tandis que l'extrémité arrière 13b, est renflée radialement extérieurement.The front end 13a is bulged radially internally, while the rear end 13b is bulged radially outwardly.

En raison du fait que l'action du pointeau 9 est de maintenir la bille 5 au contact de son siège ou d'autoriser son décollement, la course du pointeau 9 est faible, de l'ordre de deux millimètres.Due to the fact that the action of the needle 9 is to maintain the ball 5 in contact with its seat or to allow its detachment, the stroke of the needle 9 is low, of the order of two millimeters.

La variation des dimensions radiales est encore plus faible de l'ordre du dixième de millimètre, ce qui autorise l'emploi à des fréquences d'actionnement élevées, de l'ordre de 2Hz.The variation of the radial dimensions is even smaller of the order of one tenth of a millimeter, which allows the use at high operating frequencies, of the order of 2 Hz.

La forme continûment concave de la surface extérieure de l'organe 13 d'étanchéité facilite le rinçage et le nettoyage de cette surface extérieure et supprime les difficultés de rinçage et de nettoyage rencontrées avec les soufflets et membranes de l'art antérieur.The continuously concave shape of the outer surface of the sealing member 13 facilitates the rinsing and cleaning of this outer surface and eliminates the rinsing and cleaning difficulties encountered with the bellows and membranes of the prior art.

La forme sensiblement cylindrique de la surface extérieure du manchon 13 permet également de réduire, la surface au contact du produit à pulvériser, par comparaison avec les soufflets et membranes de l'art antérieur.The substantially cylindrical shape of the outer surface of the sleeve 13 also reduces the area in contact with the product to be sprayed, compared with the bellows and membranes of the prior art.

Le matériau utilisé pour la fabrication du manchon 13 peut être un polyuréthane, dans le cas d'une spécification de résistance aux produits hydrosolubles.The material used for the manufacture of the sleeve 13 may be a polyurethane, in the case of a specification of resistance to water-soluble products.

Les polyuréthanes sont économiques et faciles à mettre en forme de préférence par moulage, ou éventuellement par usinage.Polyurethanes are economical and easy to form, preferably by molding, or possibly by machining.

Dans le cas d'une résistance à tous types de produits à pulvériser, hydrosolubles ou dissous dans un solvant, le manchon 13 peut être fabriqué en matériau élastomère perfluoré à grande inertie chimique.In the case of resistance to all types of spray products, water-soluble or dissolved in a solvent, the sleeve 13 may be made of perfluoroelastomer material with high chemical inertness.

Un élastomère perfluoré utilisé est un perfluoroélastomère spécialement formulé pour milieu de haute pression et conditions de décompression explosive, qui donne satisfaction.A perfluoroelastomer used is a perfluoroelastomer specially formulated for high pressure medium and explosive decompression conditions, which is satisfactory.

L'invention n'est pas limitée au mode de réalisation décrit, mais couvre au contraire toute modification de forme et toute variante de réalisation dans le cadre de l'invention.The invention is not limited to the embodiment described, but on the contrary covers any change of shape and any variant embodiment within the scope of the invention.

Ainsi, le matériau utilisé pour le manchon 13 peut être modifié sans sortir du cadre de la présente invention et peut éventuellement être composé à partir d'un matériau métallique ou non métallique.Thus, the material used for the sleeve 13 may be modified without departing from the scope of the present invention and may optionally be composed of a metallic or non-metallic material.

Claims (9)

  1. An automatic gun for spraying a product such as an abrasive paint, a lacquer, an enamel, hydrosoluble or dissolved in a solvent, including a body with a front part (1a) defining a chamber (7) of product to be sprayed and a rear part (1b) for controlling and admitting propulsion gas, a spray head (3) and a product discharge nozzle (4) controlled by a movable needle (9), as well as means (14, 10) for controlling the movement of the needle (9), an elastic sealing means (13) surrounding the needle (9) between the product to be sprayed and the propulsion gas, while being mounted gripped between the front (1a) and rear (1b) portions of the body, characterized in that the elastic sealing means (13) has an elongate tubular configuration whereof the inner surface is adjusted to the diameters of the needle (9) and a control slide (14) mounted on the needle (9) to move the latter, to contain the pressure of the product to be sprayed.
  2. The automatic gun according to claim 1, characterized in that the elastic sealing means (13) is fixed at its front end (13a) so as to capture the latter against a shoulder (9a) of the needle (9) and prestress the elastic sealing means (13) in compression.
  3. The automatic gun according to claim 1 or 2, characterized in that the elastic means (13) is mounted gripped against one of said parts (1a or 1b) by screwing a cylindrical jacket (2).
  4. The automatic gun according to claim 3, characterized in that the cylindrical jacket (2) for gripping the elastic sealing means (13) defines the chamber (7) of product to be sprayed.
  5. The automatic gun according to any one of the preceding claims, characterized in that the elastic sealing means (13) has a continuously concave outer configuration in contact with the product to be sprayed.
  6. The automatic gun according to any one of the preceding claims, characterized in that the travel of the needle (9) is small, in the vicinity of several millimeters and characterized in that the variation of the radial dimensions of the elastic sealing means (13) are small, in the vicinity of several tenths of a millimeter.
  7. The automatic gun according to any one of the preceding claims, characterized in that the elastic sealing means (13) is configured in a sleeve, with a front portion (1a) radially inwardly bulbous and a rear portion (1b) radially outwardly bulbous.
  8. The automatic gun according to any one of the preceding claims, characterized in that the elastic sealing means (13) is manufactured from a perfluorinated elastomer material.
  9. The automatic gun according to any one of the preceding claims, characterized in that the control means (10, 10a) cooperate with a mechanical offset corresponding to a play (j) and ensuring the opening of the propulsion gas before the opening of the product to be sprayed and the closure of the product to be sprayed before the closure of the propulsion gas.
EP07803821A 2006-07-03 2007-06-29 Automatic spray gun Active EP2054161B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0606007A FR2903027B1 (en) 2006-07-03 2006-07-03 AUTOMATIC SPRAY GUN
PCT/FR2007/001112 WO2008003850A1 (en) 2006-07-03 2007-06-29 Automatic spray gun

Publications (2)

Publication Number Publication Date
EP2054161A1 EP2054161A1 (en) 2009-05-06
EP2054161B1 true EP2054161B1 (en) 2012-02-01

Family

ID=37865863

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07803821A Active EP2054161B1 (en) 2006-07-03 2007-06-29 Automatic spray gun

Country Status (8)

Country Link
US (1) US8205807B2 (en)
EP (1) EP2054161B1 (en)
JP (1) JP5181256B2 (en)
CN (1) CN101489685B (en)
AT (1) ATE543574T1 (en)
ES (1) ES2380826T3 (en)
FR (1) FR2903027B1 (en)
WO (1) WO2008003850A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111347821A (en) * 2020-04-26 2020-06-30 雷文浩 Spray drawing gun for art

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI430844B (en) * 2007-06-14 2014-03-21 Graco Minnesota Inc Longitudinal bulging seal
JP2009220034A (en) * 2008-03-17 2009-10-01 Asahi Sunac Corp Coating gun
FR2971019B1 (en) 2011-01-27 2016-01-15 Exel Ind DEVICE AND SYSTEM FOR MONITORING AN ALTERNATING LINEAR DISPLACEMENT PNEUMATIC ACTUATING PUMP.
US8708246B2 (en) * 2011-10-28 2014-04-29 Nordson Corporation Positive displacement dispenser and method for dispensing discrete amounts of liquid
JP6531939B2 (en) * 2015-04-09 2019-06-19 アネスト岩田株式会社 Automatic spray gun
US10518284B2 (en) * 2015-08-04 2019-12-31 Intelligent Agricultural Solutions Llc Interactive liquid spraying system and method
CN107930899B (en) * 2017-12-19 2020-04-21 南通航运职业技术学院 Adjustable automatic fuel injection valve
CN110479514B (en) * 2019-09-09 2024-08-06 合肥中科力一科技有限公司 Guide rod type two-fluid spray head device for atomizer
CN113695101B (en) * 2021-09-28 2024-02-13 浙江海洋大学 Automatic active agent coating device for arc additive manufacturing

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5813576A (en) * 1994-11-17 1998-09-29 Yoshino Kogyosho Co., Ltd. Container with a pump that mixes liquid and air to discharge bubbles
GB2194822A (en) * 1986-09-05 1988-03-16 Grace W R & Co Dispensing gun seal
US5190219A (en) * 1991-10-03 1993-03-02 Copp Jr William H Automatic spray gun
JP3256632B2 (en) * 1994-06-27 2002-02-12 アネスト岩田株式会社 2-pack polyester automatic gun
FR2795347B1 (en) * 1999-06-23 2001-08-03 Exel Ind AUTOMATIC MEMBRANE GUN FOR SPRAYING A PRODUCT
US6264113B1 (en) * 1999-07-19 2001-07-24 Steelcase Inc. Fluid spraying system
DE10038408A1 (en) * 2000-08-07 2002-02-21 Nordson Corp Method and device for applying fluid to a substrate, in particular adhesive on hygiene articles
JP2002243062A (en) * 2000-12-13 2002-08-28 Abb Kk Opening and closing valve for coating
US20060097070A1 (en) * 2002-10-15 2006-05-11 Spraying Systems Co. External mix air assisted spray nozzle assembly
US6874708B2 (en) * 2003-02-13 2005-04-05 Illinois Tool Works Inc. Automatic air-assisted manifold mounted gun
CN2616303Y (en) * 2003-04-23 2004-05-19 周汝福 Automatic spray gun for leather
CN2626621Y (en) * 2003-06-28 2004-07-21 梁小恩 Water automatically returning control valve of powered sprayer
FR2863512B1 (en) * 2003-12-10 2006-01-21 Itw Surfaces & Finitions AUTOMATIC SPRAY GUN
FR2872717B1 (en) * 2004-07-12 2006-09-15 Itw Surfaces & Finitions Sa AUTOMATIC SPRAY GUN COMPRISING A SPRAY BODY MOUNTED ON A POWER SUPPLY
EP1824543B1 (en) * 2004-12-15 2013-01-23 3M Innovative Properties Company Elastomer seals for use in medicinal aerosol devices

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111347821A (en) * 2020-04-26 2020-06-30 雷文浩 Spray drawing gun for art

Also Published As

Publication number Publication date
FR2903027A1 (en) 2008-01-04
US20090283610A1 (en) 2009-11-19
ES2380826T3 (en) 2012-05-18
ATE543574T1 (en) 2012-02-15
JP2009541048A (en) 2009-11-26
FR2903027B1 (en) 2008-11-14
EP2054161A1 (en) 2009-05-06
JP5181256B2 (en) 2013-04-10
WO2008003850A1 (en) 2008-01-10
CN101489685B (en) 2012-05-30
US8205807B2 (en) 2012-06-26
CN101489685A (en) 2009-07-22

Similar Documents

Publication Publication Date Title
EP2054161B1 (en) Automatic spray gun
EP1206972B1 (en) Cleanable dispensing head and dispenser equipped therewith
EP1020231B1 (en) Spray head for product like paint
EP1052023A1 (en) Dispensing head and container provided with such a device
FR2502513A1 (en) SPRAYING APPARATUS FOR SPRAYING LIQUIDS OR OTHER FLUID MATERIALS, IN PARTICULAR PAINTS
FR2687382A1 (en) DEVICE FOR ACTUATING A DISTRIBUTION MECHANISM SUCH AS A PUMP OR A VALVE.
EP1063018B1 (en) Automatic spray gun with a membrane
EP0747131A2 (en) Pumping device for removing liquid from a container and for spraying it
EP1867396B1 (en) Spray gun for painting using aerosol cartridges
EP2879811A1 (en) Device for cleaning a spray gun
FR2863512A1 (en) Spray gun for product e.g. paint, has bellow whose end directed towards product chamber includes joint to ensure tightness of needle that has scrap wall for joint, where needle is moved to and fro
EP3479906A1 (en) Spray nozzle with pre-atomisation narrowing, and spray head and spraying device comprising such a nozzle
FR2671986A1 (en) DEVICE FOR SPRAYING A LIQUID COMPRISING A PUSH-BUTTON WITH SPRAY JET FOR A REPETITION PUMP.
EP2258484A1 (en) Push-button for a pressurised liquid distribution system
CA1083098A (en) Compressed air assisted manual pump and associated holding tank
FR2713608A1 (en) Valve for dispensing in spraying form of a liquid, and pressurized container equipped with such a valve.
FR2814727A1 (en) Pressurized container comprising a valve, useful for dispensing a spray, gel, mousse, cosmetic or pharmaceutical product, has spring holding it in closed position until actuator is depressed
WO2007085539A1 (en) Adjustable pressure reducer with low pressure double bellows
EP1683580B1 (en) Coating and spraying gun for building material
FR2661380A1 (en) Washer device for a motor vehicle external rear-view mirror
EP0518301A2 (en) Sprayhead
CA2092063C (en) Liquid dispenser comprising a dispensing pump, and dispensing pump therefor
EP0882522B1 (en) Lance and apparatus for the production of a liquid jet of CO2 and its use for a surface cleaning installation
FR2550474A1 (en) COMPRESSED AIR BLOW GUN
EP1149633A1 (en) Spray apparatus

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

17P Request for examination filed

Effective date: 20090105

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK RS

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

DAX Request for extension of the european patent (deleted)
GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: AT

Ref legal event code: REF

Ref document number: 543574

Country of ref document: AT

Kind code of ref document: T

Effective date: 20120215

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602007020445

Country of ref document: DE

Effective date: 20120329

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: E. BLUM & CO. AG PATENT- UND MARKENANWAELTE VSP

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2380826

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20120518

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20120201

LTIE Lt: invalidation of european patent or patent extension

Effective date: 20120201

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120201

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120201

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120601

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

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

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120201

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120502

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120201

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120201

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120601

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 543574

Country of ref document: AT

Kind code of ref document: T

Effective date: 20120201

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

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120201

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

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120201

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120201

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120201

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120201

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120201

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120201

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

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120201

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

BERE Be: lapsed

Owner name: EXEL INDUSTRIES

Effective date: 20120630

26N No opposition filed

Effective date: 20121105

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

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120201

Ref country code: MC

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

Effective date: 20120630

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602007020445

Country of ref document: DE

Effective date: 20121105

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: 20120630

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

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120201

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120501

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

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120201

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

Ref country code: LU

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

Effective date: 20120629

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

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070629

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 602007020445

Country of ref document: DE

Representative=s name: LIPPERT STACHOW PATENTANWAELTE RECHTSANWAELTE , DE

Ref country code: DE

Ref legal event code: R082

Ref document number: 602007020445

Country of ref document: DE

Representative=s name: PATENTANWAELTE LIPPERT, STACHOW & PARTNER, DE

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 10

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 11

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 12

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

Ref country code: CZ

Payment date: 20200520

Year of fee payment: 14

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

Ref country code: CH

Payment date: 20210628

Year of fee payment: 15

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

Ref country code: CZ

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

Effective date: 20210629

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Ref country code: LI

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

Effective date: 20220630

Ref country code: CH

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

Effective date: 20220630

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

Ref country code: ES

Payment date: 20230706

Year of fee payment: 17

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

Ref country code: GB

Payment date: 20240626

Year of fee payment: 18

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

Ref country code: DE

Payment date: 20240613

Year of fee payment: 18

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

Ref country code: FR

Payment date: 20240624

Year of fee payment: 18

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

Ref country code: IT

Payment date: 20240606

Year of fee payment: 18

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

Ref country code: ES

Payment date: 20240705

Year of fee payment: 18