EP2160252B1 - Évent autorégulateur pour cuve d'alimentation en peinture - Google Patents

Évent autorégulateur pour cuve d'alimentation en peinture Download PDF

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Publication number
EP2160252B1
EP2160252B1 EP08760690A EP08760690A EP2160252B1 EP 2160252 B1 EP2160252 B1 EP 2160252B1 EP 08760690 A EP08760690 A EP 08760690A EP 08760690 A EP08760690 A EP 08760690A EP 2160252 B1 EP2160252 B1 EP 2160252B1
Authority
EP
European Patent Office
Prior art keywords
vessel
valve
closure lid
air inlet
openings
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
EP08760690A
Other languages
German (de)
English (en)
Other versions
EP2160252A1 (fr
Inventor
Peter Van Zele
Alain Wambeke
Eric Van Zele
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.)
Carr-Cup
Original Assignee
Omniform 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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=38459585&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2160252(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Omniform SA filed Critical Omniform SA
Priority to EP08760690A priority Critical patent/EP2160252B1/fr
Publication of EP2160252A1 publication Critical patent/EP2160252A1/fr
Application granted granted Critical
Publication of EP2160252B1 publication Critical patent/EP2160252B1/fr
Active legal-status Critical Current
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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
    • B05B7/24—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 with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
    • B05B7/2402—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device
    • B05B7/2405—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device using an atomising fluid as carrying fluid for feeding, e.g. by suction or pressure, a carried liquid from the container to the nozzle
    • B05B7/2408—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device using an atomising fluid as carrying fluid for feeding, e.g. by suction or pressure, a carried liquid from the container to the nozzle characterised by the container or its attachment means to the spray apparatus
    • 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
    • B05B7/24—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 with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
    • B05B7/2402—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device
    • B05B7/2478—Gun with a container which, in normal use, is located above the gun

Definitions

  • the present invention relates to a vessel, in particular for containing paint, comprising a reservoir and a closure lid which reservoir is provided for being closed by said closure lid, which closure lid is applicable on top of a liquid application tool, said vessel having an air inlet comprising a plurality of openings, said closure lid comprises a conically shaped part.
  • Such a vessel is known from the International Patent application WO 03/006170 .
  • the latter application relates to a vessel being mounted on top of a liquid application tool.
  • gravity helps feeding the liquid into the application tool.
  • the vessel also comprises a conically shaped part, which allows to easily apply a filter between the reservoir and the application tool, which keeps the latter from clogging up.
  • the conically shaped part further allows feeding the liquid into the liquid application tool even if the latter is used in a non-horizontal position. Openings are provided on the reservoir to provide vacuum relief for the liquid application tool. This implies that the reservoir is not liquid-tight any more.
  • the above mentioned patents therefore describe the use of a flexible liner within the cavity of the reservoir, which liner holds the liquid. The advantage is that the reservoir can be used multiple times.
  • a drawback of the known vessel is that it requires an extra element, namely the liner. It also requires at least one extra step using such a vessel, namely placing the flexible liner into the reservoir.
  • a vessel according to the present invention is characterised in that said air inlet is provided with a closure valve made of flexible elastomer material, said valve being resiliently mounted on said air inlet in such a manner as to cover said plurality of openings, of which each opening having a surface area of at the most 15 mm 2 , and as to open upon a predetermined pressure difference between a first pressure inside said vessel and a second pressure outside said vessel, said closure lid (3) being provided with a protrusion applied on said conically shaped part and forming a flat contact face for said valve.
  • the vessel is capable of holding a liquid because a valve is used to cover the openings.
  • the vessel is capable of holding a liquid, there is no need any more for a flexible liner, and the liquid can be applied directly into the reservoir. Because there is no flexible liner, in using the vessel, there is no need to apply such a liner, which makes the use of the vessel easier. No openings are to be provided in the reservoir so as to keep the latter intact and consequently suitable for using multiple times.
  • the valve is not applied on the reservoir which forms the top part of the vessel in a mounted position, but the valve is applied on the closure lid. No particular measures are to be applied on the reservoir for vacuum relief, which makes any cup which fits to the closure lid suitable for being used as reservoir.
  • the valve is applied on the closure lid, which forms the lower part of the vessel in a mounted position, when air enters the vessel through the valve, the air enters below the liquid surface. This results in bubbles rising to the liquid surface, thereby creating turbulences inside the liquid. These turbulences induce a mixing effect to the liquid, which is especially advantageous in multi component liquids.
  • a first preferred embodiment of a vessel according to the present invention is characterised in that said openings are applied along a circumference of a circle and wherein said valve has a circularly shaped member covering said openings.
  • the circular distribution of the openings stimulates a well distributed air flow.
  • a second preferred embodiment of a vessel according to the present invention is characterised in that a further opening is applied in the centre of said circle, said valve having a stem extending from said member and penetrating into said further opening. In such a manner the stem is surrounded by the air flow openings.
  • the invention also relates to a closure lid for a vessel according to the present invention.
  • the closure lid having a central opening, being applicable on top of a liquid application tool and comprising a conically shaped part.
  • the closure lid according to the invention is characterised by the closure lid having an air inlet comprising a plurality of openings wherein the air inlet is provided with a closure valve made of flexible elastomer material, said valve being resiliently mounted on said air inlet in such a manner as to cover said plurality of openings, of which each opening has a surface area of 15 mm 2 at the most and as to open upon a predetermined pressure difference between a first pressure inside a vessel closed by the lid and a second pressure outside a vessel closed by the lid, said closure lid being provided with a protrusion applied on said conically shaped part, the protrusion forming a flat contact face for said valve.
  • the vessel 1 illustrated in figure 1 is mounted on a spray gun 4 provided with a handle 5 for controlling the spray volume.
  • a spray gun is used as a liquid application tool. It will however be clear that other application tools than a spray gun can be used.
  • the vessel is provided for storing and conveying paint to the spray gun. It will however be clear that the present invention is not limited to vessels for storing paint and that the vessels may contain any other liquid or viscous material to be supplied to the application tool.
  • the vessel also comprises a reservoir 2, which is closed by means of a closure lid 3. The closure lid is preferably clicked on a rim of the reservoir with a pressure fit interlocking design.
  • the vessel can also comprise a mixing cup which is removably mounted thereto.
  • the mixing cup is used for preparing a mixture, in particular paint, prior to pouring it into the vessel, which is subsequently mounted onto the application tool.
  • the removably mounted mixing cup enables to incorporate the mixing cup as part of the vessel, thereby avoiding the need to transfer the liquid to another vessel prior to the application thereof. This extends the utility of a mixing cup, reduces waste, and reduces the cost and the number of steps in the liquid (paint) preparation process.
  • the closure lid further comprises an air inlet 9.
  • the air inlet crosses the closure lid surface 11 and comprises a plurality of openings 10.
  • the air inlet is applied approximately half way between the closure rim 6 and the central opening 7.
  • the openings are applied along'a circumference of a circle.
  • the air inlet is preferably applied on a seat 12.
  • the seat 12 forms a triangularly shaped protrusion (as seen in the sectioned view of figure 4 ) inside the vessel and with respect to the cover lid surface 11. By this protrusion, a flat surface is created on which the air inlet can be provided.
  • the air inlet location may be adjusted for various reasons, such as to incorporate the aforementioned filtering screen.
  • the air inlet is applied on the closure lid.
  • the air inlet could also be applied on the reservoir 2, preferably in the upper part thereof.
  • the openings 10 are applied in the flat surface part of the seat which extend substantially parallel with respect to line 13. In such a manner, the air penetrates perpendicularly through the openings 10 and turbulences are avoided which would be generated in case that the openings would be applied in the conical surface.
  • the air inlet 9 is as if to say applied in a cavity, applied on the closure lid's surface 11.
  • FIG 5 which shows a detailed view of the openings
  • the dimension of the diameter d1 is determined in function of the liquid to be applied and the amount of air flow needed into the interior of the vessel.
  • the diameter of each opening can vary between 0.2 mm to 4 mm.
  • At the most each of the plurality of openings have a surface of 15 mm 2 .
  • diameter d2 may also vary according to the liquid to be applied and air flow needed into the vessel interior.
  • the air inlet is further provided with a closure valve 14 made of a flexible elastomer material such as silicone rubber, fluorosilicone, fluoroelastomers or perfluoroelastomers.
  • a closure valve 14 made of a flexible elastomer material such as silicone rubber, fluorosilicone, fluoroelastomers or perfluoroelastomers.
  • the choice of the elastomer material of which the valve is made is in function of the liquid that will be present in the vessel. Indeed, care has to be taken that the latter material is chemically resistant to this liquid.
  • the valve assembly may also be mounted in the reservoir if the air inlet is applied there.
  • the air inlet is preferably provided with a further opening 17 as illustrated in figures 5 and 6 .
  • This further opening 17 is applied in a centre of the circle C within which the openings 10 are applied.
  • the valve comprises preferably a stem 15 on which a circularly shaped member 16 is mounted as illustrated in figure 6 .
  • the circularly shaped member is dimensioned in such a manner that it covers the plurality of openings.
  • Such a type of valve is also called an umbrella valve.
  • the circularly shaped member 16 extends on the inner side of the closure lid, whereas the stem 15 penetrates through the further opening 17 in order to reach the outer side of the closure lid 3.
  • the stem 15 is somewhat compressed inside the further opening 17 so that it bulges out at the outer side, thereby firmly fixing the valve to the air inlet.
  • the valve thus covers the openings and opens upon a pressure difference between a first pressure P1 inside the vessel and a second pressure P2 outside the vessel.
  • the gun When the user activates the handle 5 of the spray gun, the gun will open thereby causing a pressure drop inside the vessel. As the pressure P1, inside the vessel is then lower than the pressure P2 outside the vessel, a pressure difference will be established over the air inlet, causing the valve to open and thus allowing air from the outside to flow via the plurality of openings 10 inside the vessel. As soon as the handle is released, the pressure difference becomes negligible, thereby causing the valve to close. The valve is thus self regulating and as the valve closes after release of the handle, the vessel is closed and there is no need to change the closure lid, even if the liquid remains stored in the vessel.
  • the closure lid and the reservoir are preferably made of plastic disposable material so as to provide a low cost product. Moreover, there is also no need to clean the reservoir. It has to be noted that a silicone valve may swell upon exposure to certain solvents which may be present in the liquid. However this will not affect the operation of the valve as the member 16 does not cross the boundaries of the seat.
  • the valve can be designed in such a manner that it opens at predetermined pressure differential between the interior and exterior of the vessel.
  • the valve design can be optimized to open at as low as 5 millibar of pressure or as high as 10 KPa, depending on needs of the application.
  • the valve has also a self sealing feature, as even without pressure difference the stem holds the valve closed due to the pre-tension in the stem.
  • the self regulating properties of the valve cause the air volume passing through the plurality of openings to be directly dependent on the amount of liquid sprayed.
  • the size of the valve and seat openings can be increased or multiple valve mountings could be used.

Landscapes

  • Closures For Containers (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Claims (8)

  1. Cuve (1), en particulier pour contenir de la peinture, comprenant un réservoir (2) et un couvercle de fermeture (3) dont est pourvu le réservoir (2) pour être fermé par ledit couvercle de fermeture (3), lequel couvercle de fermeture (3) est applicable sur le dessus d'un outil d'application de liquide (4), ladite cuve (1) ayant une entrée d'air (9) comprenant une pluralité d'ouvertures (10), ledit couvercle de couverture (3) comprenant une partie de forme conique, caractérisée en ce que ladite entrée d'air est pourvue d'une soupape de fermeture (14) réalisée en matière élastomère flexible, ladite soupape étant montée de manière élastique sur ladite entrée d'air de façon à couvrir ladite pluralité d'ouvertures, chacune d'elles ayant une aire d'au maximum 15 mm2, et de façon à s'ouvrir en présence d'une différence de pression prédéterminée entre une première pression à l'intérieur de ladite cuve et une deuxième pression à l'extérieure de ladite cuve, ledit couvercle de fermeture (3) étant pourvu d'une protubérance (12) appliquée sur ladite partie de forme conique et formant une face de contact plate pour ladite soupape.
  2. Cuve telle que revendiquée dans la revendication 1, caractérisée en ce que lesdites ouvertures (10) sont appliquées le long d'une circonférence d'un cercle et dans laquelle ladite soupape a un élément (16) de forme circulaire couvrant lesdites ouvertures.
  3. Cuve telle que revendiquée dans la revendication 2, caractérisée en ce qu'une autre ouverture (17) est appliquée dans un centre dudit cercle, ladite soupape ayant une tige (15) s'étendant à partir dudit élément (16) et pénétrant dans ladite autre ouverture.
  4. Cuve telle que revendiquée dans l'une quelconque des revendications 1 à 3, caractérisée en ce que ladite entrée d'air est appliquée sur un siège (12) formé par une protubérance s'étendant à l'intérieur de ladite cuve.
  5. Cuve telle que revendiquée dans l'une quelconque des revendications 1 à 4, caractérisée en ce que ladite entrée d'air est appliquée sur ledit siège (12) situé approximativement à mi-parcours entre un bord (6) et un centre du couvercle.
  6. Cuve telle que revendiquée dans l'une quelconque des revendications 1 à 5, caractérisée en ce que ledit couvercle de fermeture (3) est prévu pour recevoir un tamis filtrant.
  7. Cuve telle que revendiquée dans l'une quelconque des revendications 1 à 6, caractérisée en ce que la cuve comprend une coupelle montée de manière amovible dans celle-ci.
  8. Couvercle de fermeture (3) pour une cuve (1) selon l'une quelconque des revendications 1 à 7, le couvercle de fermeture (3) ayant une ouverture centrale (7), étant applicable sur le dessus d'un outil d'application de liquide (4) et comprenant une partie de forme conique, caractérisé en ce que le couvercle de fermeture (3) a une entrée d'air (9) comprenant une pluralité d'ouvertures (10), dans lequel l'entrée d'air (9) est pourvue d'une soupape de fermeture (14) réalisée en matière élastomère flexible, ladite soupape (14) étant montée de manière élastique sur ladite entrée d'air (9) de façon à couvrir ladite pluralité d'ouvertures, chacune d'elles ayant une aire de 15 mm2 au maximum, et de façon à s'ouvrir en présence d'une différence de pression prédéterminée entre une première pression à l'intérieur de la cuve fermée par ledit couvercle (3) et une deuxième pression à l'extérieur de la cuve fermée par ledit couvercle (3), ledit couvercle de fermeture (3) étant pourvu d'une protubérance appliquée sur ladite partie de forme conique, la protubérance formant une face de contact plate pour ladite soupape (14).
EP08760690A 2007-06-07 2008-06-06 Évent autorégulateur pour cuve d'alimentation en peinture Active EP2160252B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08760690A EP2160252B1 (fr) 2007-06-07 2008-06-06 Évent autorégulateur pour cuve d'alimentation en peinture

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP07109834A EP2000218A1 (fr) 2007-06-07 2007-06-07 Event à régulation automatique pour un récipient d'alimentation de peinture
EP08760690A EP2160252B1 (fr) 2007-06-07 2008-06-06 Évent autorégulateur pour cuve d'alimentation en peinture
PCT/EP2008/057121 WO2008148887A1 (fr) 2007-06-07 2008-06-06 Évent autorégulateur pour cuve d'alimentation en peinture

Publications (2)

Publication Number Publication Date
EP2160252A1 EP2160252A1 (fr) 2010-03-10
EP2160252B1 true EP2160252B1 (fr) 2013-01-09

Family

ID=38459585

Family Applications (2)

Application Number Title Priority Date Filing Date
EP07109834A Withdrawn EP2000218A1 (fr) 2007-06-07 2007-06-07 Event à régulation automatique pour un récipient d'alimentation de peinture
EP08760690A Active EP2160252B1 (fr) 2007-06-07 2008-06-06 Évent autorégulateur pour cuve d'alimentation en peinture

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP07109834A Withdrawn EP2000218A1 (fr) 2007-06-07 2007-06-07 Event à régulation automatique pour un récipient d'alimentation de peinture

Country Status (5)

Country Link
US (1) US20100288772A1 (fr)
EP (2) EP2000218A1 (fr)
CA (1) CA2689229A1 (fr)
ES (1) ES2402594T3 (fr)
WO (1) WO2008148887A1 (fr)

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Also Published As

Publication number Publication date
ES2402594T3 (es) 2013-05-07
WO2008148887A1 (fr) 2008-12-11
EP2160252A1 (fr) 2010-03-10
CA2689229A1 (fr) 2008-12-11
EP2000218A1 (fr) 2008-12-10
US20100288772A1 (en) 2010-11-18

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