WO2004060574A1 - Reservoir de pistolet de pulverisation possedant une ouverture surdimensionnee a remplissage rapide - Google Patents

Reservoir de pistolet de pulverisation possedant une ouverture surdimensionnee a remplissage rapide Download PDF

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Publication number
WO2004060574A1
WO2004060574A1 PCT/US2003/033855 US0333855W WO2004060574A1 WO 2004060574 A1 WO2004060574 A1 WO 2004060574A1 US 0333855 W US0333855 W US 0333855W WO 2004060574 A1 WO2004060574 A1 WO 2004060574A1
Authority
WO
WIPO (PCT)
Prior art keywords
reservoir
assembly
cap member
opening
spout
Prior art date
Application number
PCT/US2003/033855
Other languages
English (en)
Inventor
Stephen C. P. Joseph
Daniel E. Siltberg
Original Assignee
3M Innovative Properties Company
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9949851&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2004060574(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by 3M Innovative Properties Company filed Critical 3M Innovative Properties Company
Priority to JP2004564817A priority Critical patent/JP4532287B2/ja
Priority to CA2506453A priority patent/CA2506453C/fr
Priority to US10/534,093 priority patent/US7845582B2/en
Priority to EP03777885A priority patent/EP1572373B1/fr
Priority to AU2003286675A priority patent/AU2003286675A1/en
Priority to DE60307137T priority patent/DE60307137T2/de
Publication of WO2004060574A1 publication Critical patent/WO2004060574A1/fr
Priority to HK06108082.6A priority patent/HK1087661A1/xx

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • 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
    • 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

Definitions

  • This invention concerns improvements in or relating to liquid supply assemblies for use with spraying apparatus such as a spray gun. More especially, the invention relates to liquid supply assemblies in which a reservoir containing the liquid to be sprayed is mounted on the spray gun.
  • Spray guns are widely used to apply a liquid to a substrate in a variety of industries.
  • the liquid is contained in a reservoir attached to the gun from where it is fed to a spray nozzle.
  • the liquid On emerging from the spray nozzle, the liquid is atomised and forms a spray with compressed air supplied to the nozzle.
  • the liquid may be gravity fed or suction fed or, more recently, pressure fed by an air bleed from the compressed air line to the reservoir or even from the spray gun itself.
  • a common application of spray guns is in vehicle body repair shops when re- spraying a vehicle that has been repaired following an accident.
  • a typical paint finish may require application of a primer, base coat, top coat and a clear lacquer.
  • the reservoir is a rigid pot detachably mounted on the spray gun by engagement of complementary screw threads on the spray gun and pot.
  • the spray gun and pot have to be thoroughly cleaned when changing the liquid to be sprayed to avoid cross-contamination which may adversely affect the finish. This is especially important when spraying part of a vehicle to match exactly the colour of the existing colour of the adjacent bodywork. Cleaning the spray gun and pot is time consuming and often requires the use of solvents which are costly and may present a health hazard to the operator.
  • a reservoir in which the liquid is contained in a disposable lid/liner assembly.
  • the liner is in the form of an open- topped container that is a close fit inside an outer rigid pot, and the lid is secured over the open end of the liner by a collar screwed onto the pot.
  • the reservoir is releasably connected to the spray gun by means of a spout integral with the lid and through which liquid is withdrawn from the reservoir in use.
  • the reservoir can be detached from the spray gun, the collar released and the lid/liner assembly removed from the outer pot and thrown away.
  • the outer pot and collar can then be re-used with a new, clean liner and lid for supplying a different liquid to the spray gun.
  • the amount of cleaning required is considerably reduced and the spray gun can be readily adapted to apply different liquids in a simple manner.
  • a larger volume of liquid than the reservoir can hold may be required.
  • the reservoir can be detached from the gun, the collar released and the lid removed to allow liquid to be added to the liner. The reservoir is then re-assembled and re-attached to the spray gun.
  • Dis-assembly and re-assembly of the reservoir is time consuming and can result in spillage of liquid especially when the lid is removed from the liner. Also, removing the lid to add more liquid to the liner increases the risk of contamination from other sources, e.g. dust or dirt.
  • the alternative of adding liquid to the reservoir through the spout in the lid so as to avoid dis-assembly is slow due to the spout being of small size compatible with the connection to the spray gun so that liquid cannot be freely poured into the reservoir through the spout.
  • the spout may contain a filter or a filter may be positioned in the lid across the inner end of the spout to remove any unwanted solid particles contained in the liquid withdrawn from the reservoir in use. Access to the filter requires dis-assembly of the reservoir and the presence of such filter further slows the addition of liquid to the reservoir through the spout.
  • the particles may be picked up with liquid withdrawn from the reservoir and pass to the spray gun. This may lead to a blockage within the spray gun.
  • the particles may be applied with the liquid to the surface being sprayed with the result that the surface may have to be re-sprayed.
  • the present invention is intended to improve further our existing system and provide additional benefits and advantages for the user.
  • At least one embodiment of the present invention provides a liquid supply assembly for use with a spray gun that allows liquid to be added in a simple manner.
  • At least one embodiment of the present invention provides a liquid supply assembly for use with a spray gun that can be supplied empty or pre-filled with liquid.
  • At least one embodiment of the present invention provides a liquid supply assembly for use with a spray gun that can be thrown away after use to reduce the amount of cleaning required.
  • the present invention provides a liquid supply assembly for use with spraying apparatus such as a spray gun comprising a reservoir for a liquid to be sprayed, the reservoir having a first end, a second end spaced from the first end, an end wall at the first end, a side wall extending from the end wall to the second end, an opening in the end wall inwardly of the side wall, and a cap member releasably secured to the reservoir around the opening, the cap member having a spout providing a fluid outlet communicating with the reservoir through the opening, wherein the spout is connectable to a spray gun for connecting the reservoir to a fluid inlet of the spray gun, and the reservoir can be detached from the cap member for adding fluid to the reservoir through the opening.
  • spraying apparatus such as a spray gun
  • the reservoir having a first end, a second end spaced from the first end, an end wall at the first end, a side wall extending from the end wall to the second end, an opening in the end wall inwardly of the side wall, and
  • liquid refers to all forms of flowable materials that can be applied to a surface using a spray gun (whether or not they are intended to colour the surface) including (without limitation) paints, primers, base coats, lacquers, varnishes and similar paint-like materials as well as other materials such as adhesives, sealers, fillers, putties, powder coatings, blasting powders, abrasive slurries, mould release agents and foundry dressings which may be applied in atomised or non-atomised form depending on the properties and/or the intended application of the material and the term “liquid” is to be construed accordingly.
  • the fluid outlet of the reservoir is provided by the spout of the separate cap member releasably secured to the reservoir.
  • the opening in the reservoir can be oversize relative to the fluid outlet and the reservoir can be detached from the cap member to add liquid to the reservoir through the opening without dis-assembly of the reservoir.
  • liquid can be added to the reservoir in a simple manner so that the risk of spillage and/or contamination of the liquid may be reduced.
  • the capacity of the reservoir is less than the volume of liquid required for a particular application. For example, when spraying a large area, the user can detach the reservoir from the cap member to top-up the reservoir with additional liquid and re-attach the reservoir to the cap member.
  • the reservoir may be collapsible as liquid is withdrawn.
  • the side wall may be flexible in comparison to the end wall so as to be capable of deforming to collapse the reservoir in an axial direction from the second end towards the first end.
  • the end wall is comparatively rigid relative to the side wall to provide stability and allow the reservoir to be gripped by the user without collapsing when attaching the reservoir to and detaching the reservoir from the cap member.
  • the reservoir is provided with a comparatively rigid base at the second end such that the reservoir can be inverted and stood on the base for adding liquid through the opening in the end wall.
  • the reservoir may be formed in one piece.
  • the reservoir may be a moulding such as a blow moulding.
  • the base and side wall may be formed in one piece with the end wall being formed as a separate piece that is secured to the side wall.
  • the base and side wall may form an open topped container and the end wall may form a lid for the container.
  • the lid may be permanently secured to the container.
  • the lid may be welded or adhesively bonded to the container.
  • the lid may be releasably secured to the container.
  • the lid may be clamped to the container.
  • the cap member may be a screw-fit on the reservoir.
  • the cap member may be releasably secured to the reservoir by any other suitable means, for example a snap-fit.
  • the cap member comprises a base defining a socket with an internal screw thread to receive an externally threaded spigot bounding the opening in the reservoir and the spout extends from the base of the socket away from the reservoir.
  • the spout is of reduced size relative to the opening in the end wall of the reservoir for connection to the spray gun inlet.
  • the spout may have a diameter less than half the diameter of opening in the end wall of the reservoir, more preferably less than a third the diameter of the opening and more preferably less than a quarter the diameter of the opening.
  • the opening has a diameter of 50-60 mm, preferably 53 mm (about 2") and the spout has a diameter of 10-15 mm (about V.”).
  • the opening is located centrally in the end wall.
  • the size of the opening can be maximised for rapid filling of the reservoir.
  • the spout in the cap member is coaxial with the opening so that, when connected to the spray gun, the reservoir is aligned with the central longitudinal axis of the spray gun. As a result, balance, handling of the spray gun is not adversely affected by the weight of the reservoir and the liquid therein.
  • the cap member is adapted for releasable connection to the spraying apparatus.
  • the cap member and spraying apparatus may be provided with co-operating bayonet type formations.
  • the cap member can be connected to and released from the spraying apparatus with or without the reservoir being attached by a simple action requiring minimum effort or manual dexterity by the user.
  • the spray gun is provided with a socket to receive the spout and the bayonet type formations are engageable to retain the spout in the socket.
  • the socket may be an integral part of the spray gun or it may be a separate part secured to the spray gun.
  • the socket may be formed by an inlet adaptor secured to the spray gun.
  • the bayonet type formations are engageable within the socket.
  • the spout may be provided with opposed bayonet lugs at the free end that are received in bayonet grooves in the socket.
  • the bayonet type formations are engageable externally of the socket.
  • the socket may have an external flange co-operable with a pair of hook members extending from the base of the cap member on opposite sides of the spout.
  • the cap member may include a filter for removing any unwanted solid particles contained in the liquid withdrawn from the reservoir.
  • the filter may be located in the spout.
  • the filter may be seated at the base of the socket to extend across the opening to the spout. In this way, liquid can be added to the reservoir through the opening without filtering to remove any solid particles. Furthermore, if the filter becomes blocked in use, the cap member can be replaced.
  • liquid added to the reservoir may be filtered to remove any solid particulates so that filtering of the liquid withdrawn from the reservoir in use is not required.
  • the filter in the cap may be omitted.
  • the reservoir may be supplied empty for the user to fill with liquid and attach the cap member to connect the reservoir to the spray gun. Where the reservoir is collapsible, it may be collapsed to a compact form for storage and transportation.
  • the reservoir may be supplied pre-filled with liquid and the opening sealed until it is desired to use the liquid.
  • the opening may be sealed using a removable closure or a rupturable membrane that is broken when the cap member is attached to the reservoir.
  • the cap member may be adapted to seal the opening until it is desired to use the liquid.
  • the cap member may be provided with a removable seal at the base of the socket to close the spout.
  • a rupturable membrane may be provided across the end of the spout that is broken when the spout is attached to the spray gun.
  • Pre-filling may be employed for liquids that can be packaged and stored until required without degrading.
  • pre-filling may be especially useful for liquids that can be supplied ready to use (i.e. without requiring modification to match the colour to an existing colour).
  • base coats in standard colours of a specified shade and/or primers or lacquers that can be supplied in a non-activated form and activated (if necessary) by suitable means such as by exposure to a source of light (ultraviolet) or electrical energy when required.
  • the reservoir can be re-filled in use by detaching the reservoir from the cap member, adding liquid through the opening and re- attaching the reservoir to the cap member.
  • the present invention provides a liquid supply assembly for use with spraying apparatus such as a spray gun comprising a reservoir for a liquid to be sprayed, the reservoir having a first end, a second end spaced from the first end, an end wall at the first end, a side wall extending from the end wall to the second end, an opening in the end wall inwardly of the side wall, and a cap member having a base and a spout, the cap member being releasably secured to the reservoir by engagement of complementary screw threads on the base and on the end wall around the opening, and the spout extending from the base away from the reservoir, the spout providing a fluid outlet of reduced cross-section relative to the opening and being connectable to a fluid inlet on the spray gun for connecting the reservoir to the spray gun, and wherein the reservoir can be detached from the cap member for adding fluid to the reservoir through the opening.
  • the reservoir is collapsible as liquid is withdrawn in use.
  • the end wall may be comparatively rigid compared to the side wall. In this way, the end wall provides stability and allows the reservoir to be gripped without collapsing when attaching the reservoir to and detaching the reservoir from the cap member, and the side wall is collapsible in an axial direction towards the end wall as liquid is withdrawn from the reservoir in use.
  • the cap member has a socket provided with an internal screw thread engageable with an external screw thread on a spigot extending around the opening in the end wall.
  • the marginal edge of the opening has an internal screw thread engageable with an external screw thread on the cap member.
  • Figure 1 is a perspective view of a prior art spray gun
  • Figure 2 is an exploded isometric view of the component parts of the paint reservoir shown in Figure 1 ;
  • Figure 3 is a perspective view of the assembled paint reservoir shown in Figure 2;
  • Figure 4 is a longitudinal section through the paint reservoir shown in
  • Figure 7 is a longitudinal section through the adapter shown in Figure 6;
  • Figure 8 is an exploded isometric view similar to Figure 2 showing the component parts of a paint reservoir according to a first embodiment of the invention
  • Figure 9 is a perspective view similar to Figure 3 showing the assembled paint reservoir of Figure 8;
  • Figure 10 is a longitudinal section through the paint reservoir of Figure 9;
  • Figure 11 is a perspective view of a cap member for use with the reservoir of Figures 8 to 10;
  • Figure 12 is a longitudinal section showing the cap member of Figure 11 attached to the reservoir of Figures 8 to 10;
  • Figure 13 is a perspective view of a reservoir and cap member according to a second embodiment of the present invention.
  • Figure 14 is a perspective view of alternative cap member for use with the reservoir of Figures 8 to 10 or Figure 13;
  • Figure 15 is a plan view of an alternative adaptor for use with the cap member of Figure 14 to connect the reservoir to the spray gun
  • Figure 16 is a longitudinal section similar to Figure 12 showing an alternative connection between the cap member and reservoir; and Figure 17 is a longitudinal section similar to Figure 12 showing a further alternative connection between the cap member and reservoir.
  • Figure 1 of the drawings illustrates a prior art paint spray gun 1 of the gravity- feed type disclosed in our co-pending patent application published under No: WO 98/32539 the contents of which are incorporated herein by reference.
  • the gun 1 comprises a body 2, a handle 3 which extends downwards from the rear end of the body, and a spray nozzle 4 at the front end of the body.
  • the gun 1 is manually-operated by a trigger 5 which is pivotally-mounted on the sides of the gun.
  • the gun 1 is connected via a connector 7 at the lower end of the handle 3 to a source of compressed air (not shown) so that, when the user pulls on the trigger 5, compressed air is delivered through the gun to the nozzle 4.
  • a source of compressed air not shown
  • paint delivered under gravity from the pot 6 to the nozzle 4 is atomised on leaving the nozzle 4 and forms a spray with the compressed air emerging from the nozzle 4.
  • the paint pot 6 includes an outer container 8, a disposable liner 9, a disposable lid 10 and a collar 11.
  • the liner 9 corresponds in shape to (and is a close fit in) the interior of the container 8 and has a narrow rim 12 at the open end which sits on the top edge of the container 8.
  • the lid 10 has a dependent skirt 13 at the peripheral edge which is a push-fit in the open end of the liner 9 and a central aperture 14 from which extends a spout 15 forming a fluid outlet.
  • the spout 15 is provided at its free end with outward extensions 16 forming one part of a bayonet connection.
  • the aperture 14 is covered at the inner end of the spout 15 by a filter mesh 17 which may be a push fit in the skirt 13 or may be an integral part of the lid 10. Alternatively, the filter may be a push fit in the spout 15.
  • the lid 10 is held firmly in place on the container 8 by the annular collar 11 which screws onto the container 8 on top of the lid 10.
  • the liner 9 and lid 10 form a reservoir for containing the paint or other liquid to be delivered to the nozzle 4 via the spout 15.
  • the paint pot 6 is attached to the spray gun 1 through use of an adapter 18 shown separated from the paint pot 6 in Figures 6 and 7.
  • the adapter 18 is a tubular component which is formed internally at one end with a socket 19 having the other part of the bayonet connection for attachment to the spout 15 of the lid 10.
  • the adapter 18 is shaped to match the standard attachment of the spray gun paint pot (typically a screw thread).
  • the container 8 of the paint pot 6 is formed from a plastic material, for example polyethylene or polypropylene, and may be translucent (as shown in Figure 2) or opaque, and of any suitable size.
  • a plastic material for example polyethylene or polypropylene
  • containers 8 having a capacity of 250, 500 or 800 ml could typically be used, although other sizes could be used if required.
  • the container 8 is of generally cylindrical shape closed at one end 8A.
  • the other end is open and side wall 8B is formed with an external screw thread 8C.
  • Base 8 A is flat so that the container 8 can stand unsupported on a flat surface and is formed with a central air hole 8D.
  • the side wall 8B tapers inwardly slightly from the open end to the base 8A.
  • the liner 9 is preferably transparent and is thermo-formed from a single piece of plastics material, preferably polyethylene or polypropylene. The shape of the liner 9 is dictated by and matches the internal shape of the container 8.
  • the liner 9, like the inside of the container 8, is of generally cylindrical shape closed at one end 9A and side wall 9B tapers inwardly slightly from the mouth towards the closed end 9A.
  • the base or closed end 9A is comparatively rigid but the side walls 9B are flexible and can be made to collapse. Nevertheless, the liner 9 is capable of standing, unsupported, on the base 9A with side walls 9B extended and upright as shown in Figures 2 to 4.
  • the adapter 18 is attached at the end 20 to the spray gun and is left in position. Then, with the paint pot 6 disassembled as shown in
  • the liner 9 is pushed inside the container 8. Paint is then put into the liner 9 and, if necessary, mixed with other tinters, hardeners and thinners (solvents). The lid 10 is then pushed into place and the collar 11 is screwed down tightly to hold the lid 10 in position.
  • the spray gun 1 is then inverted from its normal operating position illustrated in Figure 1 so that the end of the spout 15 can be attached to the adapter 18 after which the spray gun 1 can be returned to its normal operating position for use in the usual way.
  • the sides 9B of the liner 9 collapse as a result of the decreased pressure within the liner 9.
  • the user can choose to evacuate the air from within the liner 9 before operating the spray gun 1 although that is not essential. It does, however, increase the range of angles at which the spray gun 1 will function satisfactorily since there is no risk of air entering the spray gun 1 from the paint pot 6.
  • the trigger 5 of the spray gun 1 should be actuated while the spray gun 1 is still in the inverted position.
  • the spray gun 1 can be re- inverted from its operating position shown in Figure 1, the airline disconnected and the trigger 5 actuated briefly to allow paint within the spray gun 1 to drain back into the liner 9 in the pot 6.
  • the pot 6 is then removed from the spray gun 1 by detaching the spout 15 from the adapter 18 which remains on the spray gun 1.
  • the collar 11 is removed from the container 8, and the lid 10 is then pulled out, bringing with it the collapsed liner 9 as shown in Figure 5.
  • the lid 10 (including the filter 17) and liner 9 are discarded, leaving the container 8 and collar 11 clean and ready for re-use with a fresh liner 9 and lid 10. Only the spray gun 1 itself needs to be cleaned, resulting in a substantial reduction in the amount of solvent used.
  • each reservoir has a disposable liner and lid which is discarded after spraying and use of several reservoirs for the same liquid is wasteful of such disposable items and requires the user to have available a sufficient number of pots and collars for assembly of the reservoirs.
  • the paint pot 106 includes an outer container 108, a disposable liner 109, a disposable lid 110 and a collar 111 that are assembled in similar manner to the previous embodiment.
  • the lid 110 has a central opening 130 bounded by an external tubular spigot 131 and a separate cap member 132 is provided for connecting the pot 106 to a spray gun (not shown). By locating the opening 130 centrally, the size of the opening 130 can be maximised for a given available space.
  • the cap member 132 comprises a base 133 having a socket 134 with an internal screw thread 135 engageable with a complementary external screw thread 136 on the spigot 131 to secure releasably the cap member 132 to the lid 110 in a fluid- tight manner. It will be understood that additional sealing means may be provided to prevent leakage if required. For example the outer end of the spigot 131 may engage an O-ring (not shown) located within the cap member 132.
  • the cap member 132 also has a spout 115 extending from the base 133 and providing a fluid outlet for connection to a fluid inlet on the spray gun 101 via an inlet adaptor (not shown) releasably secured to the spray gun.
  • the cap member 132 is releasably secured to the inlet adaptor by engagement of bayonet formations 116 on the spout 115 with complementary bayonet formations (not shown) on the inlet adaptor.
  • the bayonet formations require less than one complete turn of the cap member 132 relative to the inlet adaptor to secure/release the reservoir whereas the screw threads on the cap member 132 and spigot 131 require more than one complete turn of the cap member 132 relative to the reservoir to connect/disconnect the reservoir. In this way, accidental or unintentional release of the reservoir from the cap member 132 is prevented when attaching/detaching the cap member 132 to/from the spray gun.
  • the internal diameter of the spout 115 is considerably smaller than the diameter of the central opening 130 in the lid 110 of the reservoir.
  • the spout 115 has an internal diameter of 10- 15mm (approximately V2") and the central opening 130 has an internal diameter of 53mm (approximately 2").
  • the spout 115 is coaxial with the central opening 130 so that, when connected to the spray gun, the reservoir is aligned with the central longitudinal axis of the spray gun. As a result, the weight of the reservoir and the liquid therein is evenly distributed so that balance, handling of the spray gun is not adversely affected.
  • the opening 130 is oversize relative to the required flow when the reservoir is connected to the spray gun and permits fast-filling of the reservoir with liquid added through the opening 130 when the pot 106 is disconnected from the cap member 132.
  • the pot 106 can be detached from the cap member 132 by unscrewing the connection between the spigot 131 and the cap member 132 to provide access to the opening 130. Liquid can then be added to the reservoir through the opening 130 and the pot 106 re-connected to the cap member 132 on the spray gun 101.
  • the central opening 130 may be used to add liquid to the reservoir either when topping up the reservoir in use or when first filling the reservoir prior to commencing spraying.
  • a filter may be provided in the cap member 132 to remove any contaminants such as solid particles in the liquid.
  • a filter may be positioned in the spout 115 or in the socket 134 so as to extend across the inner end of the spout 115 when the lid 110 is connected to the cap member 132. In this way, if the filter becomes blocked in use, the cap member 132 may be replaced.
  • a removable filter may be located in the central opening 130 when adding liquid to the reservoir.
  • the filter may be of any type and preferably has a large surface area so that the addition of liquid to the reservoir is not significantly reduced. In this way, provision of a filter in the cap member 132 may be dispensed with thereby reducing the risk of interruption or reduction in the flow of liquid to the spray gun due to blockage of the filter in use.
  • FIG. 13 there is shown a second embodiment of the present invention in which like reference numerals in the series 200 are used to indicate parts corresponding to the previous embodiments and the construction and operation of similar parts will be readily understood from the description already given and will not be further described in detail.
  • the liner 209 and lid 210 are permanently joined together.
  • the liner 209 and lid 210 may be formed integrally in one piece by blow moulding.
  • the liner 209 and lid 210 may be formed separately by moulding and connected together by welding, adhesive or other suitable means of forming a permanent join therebetween.
  • the reservoir formed by permanently joining the liner 209 and lid 210 may be used without the outer container and collar of the previous embodiments.
  • some form of external support for the liner 209 may be provided to protect the liner 209 and to improve stability when adding liquid to the reservoir and in use when the reservoir is connected to a spray gun (not shown).
  • the support (not shown) may comprise an outer container and collar as described previously.
  • the lid 210 may be formed with an external flange (not shown) or similar formation onto which a support sleeve or cage may be releasably secured to surround the liner 209.
  • the reservoir may be supplied empty for the user to fill through the central opening 230 in the lid 210 prior to connecting the reservoir to the spray gun.
  • the reservoir may be supplied pre-filled with liquid and the central opening 230 in the lid 210 sealed by a removable closure (not shown) such as a screw cap 238 or a rupturable membrane such as a foil strip.
  • a removable closure such as a screw cap 238 or a rupturable membrane such as a foil strip.
  • the rupturable membrane may be broken when the cap member 232 is attached to the reservoir.
  • Pre-filling may be advantageous for liquids that can be stored without degrading and/or which do not require accurate colour matching such as primer paints or clearcoat lacquers. It may also be possible to store temporarily any unused liquid on removal of the reservoir from the spray gun by re-sealing the opening 230 in the lid 210 with the screw cap 238 (where provided) or any other suitable closure.
  • the reservoir may be collapsed to remove any air prior to attaching the screw cap 238. In this way, the life of the stored liquid may be extended.
  • FIG. 14 and 15 there is shown an alternative cap member and inlet adaptor for use with the reservoir of the present invention.
  • like reference numerals in the series 300 are used to indicate parts corresponding to the previous embodiments and the construction and operation of similar parts will be readily understood from the description already given and will not be further described in detail.
  • the cap member 332 for connecting the reservoir (not shown) to the spray gun (not shown) is provided with releasable connector means separate from the spout 315.
  • the connector means comprises a pair of hook members 339, 340 arranged on opposite sides and spaced from the spout 315.
  • Each hook member 339, 340 is similar and has an enlarged head 341, 342 respectively with a chamfer face 341a, 342a terminating at an undercut rib 341b, 342b.
  • the inlet adaptor 318 on the spray gun has an external flange 343 at the outer end for co-operating with the hook members 338, 339 to secure releasably the reservoir to the spray gun with the spout 315 received in the socket 319.
  • the spout 315 has external annular ribs 344 that provide a fluid-tight seal within the socket 319. It will be understood, however, that any suitable sealing means may be provided such as one or more O-rings in the socket 319 and/ or on the spout 315.
  • the flange 343 comprises four arcuate recesses 345, 346, 347, 348 uniformly spaced in a circumferential direction around the outer periphery such that the recesses 345, 347 are opposite each other and the recesses 346, 348 are opposite each other.
  • the cap member 332 is then rotated relative to the inlet adaptor 318 to cause the hook members 338, 339 to ride over the cam lobes 345a, 347a or 346a, 348a and locate locking ribs 341b, 342b of the heads 341, 342 behind the flats 349, 351 or 350, 352. In this way, the cap member 332 is secured to the inlet adaptor 318 and axial separation of the cap member 332 from the inlet adaptor 318 is resisted. The cap member 332 can be detached from the inlet adaptor 318 by reversing the above operation.
  • the cap member 332 may be secured to a reservoir by engagement of the internal screw thread 335 of the socket in the base of the cap member 332 with the external screw thread 335 on the spigot 331 surrounding the central opening 330 in the lid 310 of the reservoir.
  • the lid 310 and liner 309 may be releasably secured together as shown in Figures 8 to 12 or permanently connected as shown in Figure 13.
  • the complementary formations comprise an external rib 560 on spigot 531 and an internal groove 561 in socket 534. It will be understood, however that any suitable formations may be employed.
  • the present invention provides liquid supply apparatus for use with a spray gun including a reservoir having an oversize, fast- fill central opening and a separate cap member connectable to the reservoir with a spout providing a fluid outlet for connection to the spray gun.
  • the reservoir can be detached from the cap member allowing liquid to be added to the reservoir through the central opening in a simple manner with reduced risk of spillage.
  • the size of the opening can be maximised.
  • the outlet of the cap member coaxial with the opening the reservoir is aligned with the central longitudinal axis of the spray gun so that balance, handling of the spray gun is not adversely affected.

Landscapes

  • Nozzles (AREA)
  • Closures For Containers (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Catching Or Destruction (AREA)
  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)

Abstract

Réservoir de pistolet de pulvérisation possédant une ouverture centrale surdimensionnée (130) placée à une extrémité, ce qui permet d'effectuer un apport de liquide dans ce réservoir, de manière à le remplir rapidement, tout en limitant les risques de déversement accidentel. Une coiffe (132) s'accouple à ce réservoir et possède une goulotte de déversement (115) constituant une sortie de liquide de dimension limitée par rapport à l'ouverture (130), ce qui permet d'accoupler le réservoir au pistolet de pulvérisation. Le réservoir peut être désaccouplé de la coiffe (132) quand on désire y ajouter du liquide. De ce fait, il est possible de remplir de nouveau le réservoir pendant l'utilisation.
PCT/US2003/033855 2002-12-18 2003-10-27 Reservoir de pistolet de pulverisation possedant une ouverture surdimensionnee a remplissage rapide WO2004060574A1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP2004564817A JP4532287B2 (ja) 2002-12-18 2003-10-27 特大の高速充填開口を有するスプレーガン貯蔵器
CA2506453A CA2506453C (fr) 2002-12-18 2003-10-27 Reservoir de pistolet de pulverisation possedant une ouverture surdimensionnee a remplissage rapide
US10/534,093 US7845582B2 (en) 2002-12-18 2003-10-27 Spray gun reservoir with oversize, fast-fill opening
EP03777885A EP1572373B1 (fr) 2002-12-18 2003-10-27 Reservoir de pistolet de pulverisation possedant une ouverture surdimensionnee a remplissage rapide
AU2003286675A AU2003286675A1 (en) 2002-12-18 2003-10-27 Spray gun reservoir with oversize, fast-fill opening
DE60307137T DE60307137T2 (de) 2002-12-18 2003-10-27 Vorratsbecher für sprühpistolen mit grosser nachfüllöffnung
HK06108082.6A HK1087661A1 (en) 2002-12-18 2006-07-19 Spray gun reservoir with oversize, fast-fill opening

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0229401.5 2002-12-18
GBGB0229401.5A GB0229401D0 (en) 2002-12-18 2002-12-18 Spray gun reservoir with oversize fast-fill opening

Publications (1)

Publication Number Publication Date
WO2004060574A1 true WO2004060574A1 (fr) 2004-07-22

Family

ID=9949851

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2003/033855 WO2004060574A1 (fr) 2002-12-18 2003-10-27 Reservoir de pistolet de pulverisation possedant une ouverture surdimensionnee a remplissage rapide

Country Status (12)

Country Link
EP (2) EP1716931B1 (fr)
JP (1) JP4532287B2 (fr)
CN (1) CN100444969C (fr)
AT (2) ATE464950T1 (fr)
AU (1) AU2003286675A1 (fr)
CA (1) CA2506453C (fr)
DE (2) DE60332290D1 (fr)
ES (2) ES2344466T3 (fr)
GB (1) GB0229401D0 (fr)
HK (1) HK1087661A1 (fr)
RU (1) RU2383395C2 (fr)
WO (1) WO2004060574A1 (fr)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009543026A (ja) * 2006-05-22 2009-12-03 スリーエム イノベイティブ プロパティズ カンパニー 試料を調製するためのシステム及び方法
US7753289B2 (en) 2004-01-16 2010-07-13 Illinois Tool Works Inc. Antistatic paint cup
US7766250B2 (en) 2004-06-01 2010-08-03 Illinois Tool Works Inc. Antistatic paint cup
US20100327022A1 (en) * 2007-09-11 2010-12-30 Diversey, Inc. Dispenser system and method
US8033413B2 (en) 2006-06-20 2011-10-11 Saint-Gobain Abrastives, Inc. Liquid supply assembly
US8127963B2 (en) 2004-12-16 2012-03-06 Saint-Gobain Abrasives, Inc. Liquid container system for a spray gun
US8196770B2 (en) 2004-01-16 2012-06-12 Illinois Tool Works Inc. Fluid supply assembly
US8944351B2 (en) 2011-05-06 2015-02-03 Saint-Gobain Abrasives, Inc. Paint cup assembly with an outlet valve
WO2016149235A1 (fr) 2015-03-19 2016-09-22 3M Innovative Properties Company Procédés, dispositifs et kits de détection de micro-organismes dans un échantillon de fluide
US9586220B2 (en) 2011-06-30 2017-03-07 Saint-Gobain Abrasives, Inc. Paint cup assembly
EP2994240B1 (fr) * 2013-05-08 2019-02-13 Graco Minnesota Inc. Adaptateur de boîte métallique de peinture pour un dispositif de pulvérisation à main
US10857553B2 (en) 2013-12-05 2020-12-08 3M Innovative Properties Company Container for a spraying device
US10882064B2 (en) 2011-12-30 2021-01-05 Saint-Gobain Abrasives, Inc./Saint-Gobain Abrasifs Convertible paint cup assembly with air inlet valve
US11040360B2 (en) 2006-06-20 2021-06-22 Saint-Gobain Abrasives, Inc. Liquid supply assembly

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JP6444369B2 (ja) * 2013-03-15 2018-12-26 スリーエム イノベイティブ プロパティズ カンパニー 圧力補助液体供給アセンブリ
JP6534298B2 (ja) * 2015-05-29 2019-06-26 株式会社吉野工業所 噴霧装置
EA201650116A1 (ru) * 2016-09-15 2018-03-30 Общество с ограниченной ответственностью "Русские цилиндры" Узел и способ соединения емкости с объектом
CN108176645B (zh) * 2017-12-27 2021-04-23 重庆精高金属结构制造有限公司 一种自动化机械部件清洗装置

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US3674074A (en) * 1970-07-17 1972-07-04 Walter J Lavis Removable cover for spray gun
WO1998032539A1 (fr) * 1997-01-24 1998-07-30 Minnesota Mining And Manufacturing Company Appareil de pulverisation de liquides et recipients et garnitures jetables utilisables avec celui-ci
EP0987060A1 (fr) * 1998-09-18 2000-03-22 Michel Camilleri Godet cylindrique jetable pour la préparation ou le mélange de peintures utilisable comme godet de pistolet à peinture
FR2798868A1 (fr) * 1999-09-29 2001-03-30 Injelec Ensemble d'alimentation pour pistolet de projection d'un liquide et pistolet pourvu d'un tel ensemble
WO2002085533A1 (fr) * 2001-04-24 2002-10-31 3M Innovative Properties Company Reservoir muni d'un orifice de remplissage pour pistolets pulverisateurs tenus a la main

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US367404A (en) * 1887-08-02 William h
US2051518A (en) * 1935-10-28 1936-08-18 Sherwin Williams Co Spray gun adapter
US3182866A (en) * 1963-08-20 1965-05-11 Rowe Robert Spray gun transition piece

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3674074A (en) * 1970-07-17 1972-07-04 Walter J Lavis Removable cover for spray gun
WO1998032539A1 (fr) * 1997-01-24 1998-07-30 Minnesota Mining And Manufacturing Company Appareil de pulverisation de liquides et recipients et garnitures jetables utilisables avec celui-ci
EP0987060A1 (fr) * 1998-09-18 2000-03-22 Michel Camilleri Godet cylindrique jetable pour la préparation ou le mélange de peintures utilisable comme godet de pistolet à peinture
FR2798868A1 (fr) * 1999-09-29 2001-03-30 Injelec Ensemble d'alimentation pour pistolet de projection d'un liquide et pistolet pourvu d'un tel ensemble
WO2002085533A1 (fr) * 2001-04-24 2002-10-31 3M Innovative Properties Company Reservoir muni d'un orifice de remplissage pour pistolets pulverisateurs tenus a la main

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7753289B2 (en) 2004-01-16 2010-07-13 Illinois Tool Works Inc. Antistatic paint cup
US8196770B2 (en) 2004-01-16 2012-06-12 Illinois Tool Works Inc. Fluid supply assembly
US7766250B2 (en) 2004-06-01 2010-08-03 Illinois Tool Works Inc. Antistatic paint cup
US8127963B2 (en) 2004-12-16 2012-03-06 Saint-Gobain Abrasives, Inc. Liquid container system for a spray gun
US9162240B2 (en) 2004-12-16 2015-10-20 Saint-Gobain Abrasives, Inc./Saint-Gobain Abrasie Liquid container system for a spray gun
US8991239B2 (en) 2006-05-22 2015-03-31 3M Innovative Properties Company System and method for preparing samples
US8272255B2 (en) 2006-05-22 2012-09-25 3M Innovative Properties Company System and method for preparing samples
JP2009543026A (ja) * 2006-05-22 2009-12-03 スリーエム イノベイティブ プロパティズ カンパニー 試料を調製するためのシステム及び方法
US8033413B2 (en) 2006-06-20 2011-10-11 Saint-Gobain Abrastives, Inc. Liquid supply assembly
US11679399B2 (en) 2006-06-20 2023-06-20 Saint-Gobain Abrasives, Inc. Liquid supply assembly
US10035156B2 (en) 2006-06-20 2018-07-31 Saint-Gobain Abrasives, Inc. Liquid supply assembly
US11548018B1 (en) 2006-06-20 2023-01-10 Saint-Gobain Abrasives, Inc. Liquid supply assembly
US11040360B2 (en) 2006-06-20 2021-06-22 Saint-Gobain Abrasives, Inc. Liquid supply assembly
US20100327022A1 (en) * 2007-09-11 2010-12-30 Diversey, Inc. Dispenser system and method
US9335198B2 (en) 2011-05-06 2016-05-10 Saint-Gobain Abrasives, Inc. Method of using a paint cup assembly
US8998018B2 (en) 2011-05-06 2015-04-07 Saint-Gobain Abrasives, Inc. Paint cup assembly with an extended ring
US8944351B2 (en) 2011-05-06 2015-02-03 Saint-Gobain Abrasives, Inc. Paint cup assembly with an outlet valve
US9586220B2 (en) 2011-06-30 2017-03-07 Saint-Gobain Abrasives, Inc. Paint cup assembly
US10882064B2 (en) 2011-12-30 2021-01-05 Saint-Gobain Abrasives, Inc./Saint-Gobain Abrasifs Convertible paint cup assembly with air inlet valve
EP2994240B1 (fr) * 2013-05-08 2019-02-13 Graco Minnesota Inc. Adaptateur de boîte métallique de peinture pour un dispositif de pulvérisation à main
US10857553B2 (en) 2013-12-05 2020-12-08 3M Innovative Properties Company Container for a spraying device
US11541407B2 (en) 2013-12-05 2023-01-03 3M Innovative Properties Company Container for a spraying device
US11958069B2 (en) 2013-12-05 2024-04-16 3M Innovative Properties Company Container for a spraying device
WO2016149235A1 (fr) 2015-03-19 2016-09-22 3M Innovative Properties Company Procédés, dispositifs et kits de détection de micro-organismes dans un échantillon de fluide

Also Published As

Publication number Publication date
DE60332290D1 (de) 2010-06-02
EP1716931A2 (fr) 2006-11-02
ATE333949T1 (de) 2006-08-15
EP1572373A1 (fr) 2005-09-14
CA2506453A1 (fr) 2004-07-22
ES2344466T3 (es) 2010-08-27
RU2383395C2 (ru) 2010-03-10
GB0229401D0 (en) 2003-01-22
JP4532287B2 (ja) 2010-08-25
CN1726087A (zh) 2006-01-25
AU2003286675A1 (en) 2004-07-29
EP1716931B1 (fr) 2010-04-21
CN100444969C (zh) 2008-12-24
ATE464950T1 (de) 2010-05-15
EP1716931A3 (fr) 2008-03-05
ES2270131T3 (es) 2007-04-01
RU2005116980A (ru) 2006-01-20
EP1572373B1 (fr) 2006-07-26
DE60307137T2 (de) 2007-07-12
JP2006517462A (ja) 2006-07-27
DE60307137D1 (de) 2006-09-07
HK1087661A1 (en) 2006-10-20
CA2506453C (fr) 2013-01-29

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