Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
  • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
  • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
  • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
  • B05B9/08—Apparatus to be carried on or by a person, e.g. of knapsack type
  • B05B9/0894—Gun with a container which, in normal use, is located above the gun
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
  • B65D83/00—Containers or packages with special means for dispensing contents
  • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
  • B65D83/16—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant characterised by the actuating means
  • B65D83/20—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant characterised by the actuating means operated by manual action, e.g. button-type actuator or actuator caps
  • B65D83/207—Actuators comprising a manually operated valve and being attachable to the aerosol container, e.g. downstream a valve fitted to the container; Actuators associated to container valves with valve seats located outside the aerosol container
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
  • B65D83/00—Containers or packages with special means for dispensing contents
  • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
  • B65D83/68—Dispensing two or more contents, e.g. sequential dispensing or simultaneous dispensing of two or more products without mixing them
  • B65D83/682—Dispensing two or more contents, e.g. sequential dispensing or simultaneous dispensing of two or more products without mixing them the products being first separated, but finally mixed, e.g. in a dispensing head
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
  • B65D83/00—Containers or packages with special means for dispensing contents
  • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
  • B65D83/75—Aerosol containers not provided for in groups B65D83/16 - B65D83/74
  • B65D83/756—Aerosol containers not provided for in groups B65D83/16 - B65D83/74 comprising connectors, e.g. for tyre valves, or actuators connected to the aerosol container by a flexible tube
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
  • B65D83/00—Containers or packages with special means for dispensing contents
  • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
  • B65D83/44—Valves specially adapted therefor; Regulating devices
  • B65D83/48—Lift valves, e.g. operated by push action

Definitions

• the present invention relates to an assembly as described in the preamble of the first claim.
• Such an assembly is for example used for coupling a container, wherein a compound is stored, to a device, for example a gun, for applying said compound.
• a gun for applying said compound.
• Such guns are amongst others used for applying compositions, that can be composed of one or more components, for example a silicone paste, polyurethane foam or a two component glue.
• the known assembly comprises a container and a first coupling piece, which is provided for attachment to the container.
• the first coupling piece is mostly made of a plastics material.
• the known assembly also comprises a second coupling piece, which is provided for attachment to the gun.
• the second coupling piece is mostly made of metal, for example aluminium or bronze.
• the first and the second coupling piece are rotatably connectable, by means of a screw thread.
• the known coupling is effected by inserting the first coupling piece into the second coupling piece, and tightening the screw thread until the stop position is reached. This is mostly performed manually.
• the known assembly however has the disadvantage that it is rather difficult to unscrew the screw thread. It has namely been found that the screw thread contains compound present in the container. When it is the intention of re-using the container, or the gun, and thus one or both of the coupling pieces, the coupling pieces, and the screw thread included, have to be cleaned beforehand. Depending on the nature of the compound, this can be difficult, sometimes impossible. Further investigation has revealed that the compound does not enter the screw thread during use of the device, but rather during the tightening of the screw thread, and thus during the effectuation of the coupling.
• the first coupling piece is rotated stepwise, a number of times with respect to the second coupling piece, until the stop position is attained.
• the valve is opined by the second coupling piece. Because the valve is in contact with the second coupling piece almost from the beginning of the tightening of the coupling, the valve undergoes, from the beginning, every movement of the first and second coupling piece with respect to each other. Thereby, the valve is opined almost from the beginning of the tightening of the screw thread. Because the valve is already opined during the effectuation of the coupling, the valve leaks and the compound can leave the container before the coupling is achieved.
• the coupling can be effectuated in one continuous movement, whereby simultaneously the valve is opined in one continuous movement. Because the action time that is exerted to the valve is short, the risk to a leaking of the valve during the effectuation of the coupling is very small. Such a continuous one turn movement, consequently allows to minimise the leaking of the valve, during the effectuation of the coupling, A priori, it may seem that the screw thread and the protrusion and guide in the assembly of the present invention, are equivalent.
• the assembly according to this invention does indeed present a solution to the above described problem of the leaking of the valve, whereas the screw thread does not solve this problem.
• the first and second coupling piece are preferably provided with means for bolting said coupling. This is namely of importance for preventing a loosening of the coupling in case the container contains a pressurised compound. In the known assembly, this is achieved in that the screw threads engage each other over a plurality of windings.
• the means for bolting the coupling are preferably unboltable, so that the coupling can be re-used several times, i.e. opined and closed several times.
• the means for bolting the coupling preferably comprise a snap lock.
• a snap lock is bolted automatically when the coupling is effectuated.
• the protrusion and guide according to the invention preferably comprise at least one pin-and-groove connection.
• the coupling can be effectuated in one short movement. Thereby a large tolerance can be provided, so as to facilitate the insertion of the pin in the groove, without thereby opening the valve and involving a risk to leaking of the valve.
• the valve is namely only opined upon the movement of the pin in the groove, when the coupling piece that is provided for attachment to the device, acts upon the valve.
• the pin-and-groove connection preferably comprises two diametrically opposed pins, and two diametrically opposed grooves, which grooves are provided to co-operate with said pins, so as to prevent that the coupling pieces, upon effectuation of the coupling, can be canted with respect to each other.
• the coupling piece provided for attachment to the container preferably comprises means for attaching said coupling piece to the flange of the container head.
• the container mostly comprises a substantially cylindrical container body, which is at its lower portion, closed off with a bottom and at its upper portion with a container head.
• the container head is attached to the container body by means of a substantially circular flange.
• the container head comprises in its centre an opening with a substantially circular valve flange, for attaching the valve.
• the coupling piece is attached to the valve flange.
• the known container however has the disadvantage that the it is very difficult, sometimes impossible, to unscrew the coupling.
• the coupling piece can be moved with respect to the container, in peripheral direction of the valve flange. This can for example occur when the screw thread is fastened rather thoroughly, or when the screw thread contains some of the compound from the container.
• Such a movement of the coupling piece can also take place, when some force is exerted to the coupling piece, upon tightening of the screw thread.
• the presence of an increased contact surface involves that an increased frictional resistance has to be overcome in order to permit the coupling piece to be moved with respect to the container. This allows to obtain an improved attachment of the coupling piece to the container, and to prevent that the coupling piece is moveable with respect to the container.
• the coupling piece preferably also comprises means for attaching the coupling piece to the valve flange.
• the first and second coupling piece are preferably made of a plastics material, whether or not provided with fibrous reinforcing material.
• the coupling pieces are preferably made of nylon-6 or polypropylene. Thereby, use can be made of the intrinsic resilience of the plastics material for the bolting and unbolting of the snap lock.
• Figure 1 shows a device for applying a two-component composition.
• Figure 2 shows a cross section of a first preferred embodiment of the assembly of the present invention, with the coupling in respectively the uncoupled (figure 2a) and the coupled state (figure 2b).
• FIG 3a and 3b respectively a top view and a side elevation view of the second coupling piece, and in figure 3c and 3d, respectively a top view and a side elevation view of the effectuated coupling are shown.
• Figure 4a shows a second preferred embodiment of the coupling according to the invention;
• figure 4b shows a cross section of the second preferred embodiment in cross section.
• the device shown in figure 1 comprises a gun 4 for applying a two-component composition.
• a first container 3 contains a first component under pressure.
• a second container 5 contains a second component under pressure.
• the first container 3 is provided with a first coupling piece 1 , which fits into the second coupling piece 2.
• the second coupling piece 2 is provided for being connected to the gun 4.
• the first coupling piece 1 and second coupling piece 2 are rotationally connectable.
• the coupling pieces 1 and 2 are preferably made of a plastics material, for example nylon 6 or polypropylene.
• the container 3 preferably has a substantially cylindrical body 10, and is provided with a container head 7.
• the container head 7 is connected to the container body 10, by means of a flange 6.
• the container head 7 contains a central hole with a valve flange 8, for receiving a valve 9.
• the first coupling piece 1 is on the one hand, connected through a first recess 17 in its circumferential rim 16, to the flange 6 of the container head 7, and on the other hand, through a second recess 18 to the valve flange 8.
• the circumferential rim 16 preferably comprises a protrusion 15, preferably a snap rim, which is provided to co-operate with the flange 6, for strengthening the attachment of the first coupling piece 1 to the container 3.
• the valve 9 is fixed to the first coupling piece 1 by means of an at least partially compressible valve sealing ring 30.
• the valve 9 can be opined in the direction of the internal volume of the container 3.
• the component present in the container 3, can leave the container 3 through a passageway 32 in the valve 9, and further through the second coupling piece 2 towards the gun 4.
• the external surface of the first coupling piece 1 preferably comprises a protrusion 11.
• the second coupling piece 2 preferably comprises a guide 21 , which is provided for co-operating with the protrusion 11.
• the protrusion 11 is provided to be movable within said guide 21 , between a start position 28 and a stop position 29.
• the protrusion 11 and guide 21 are preferably formed by a pin 11 and groove 21 , respectively.
• the embodiment shown in figure 2 comprises two diametrically opposed pins 11 and grooves 21. Because the pins 11 and grooves 21 are applied diametrically with respect to each other on the respective coupling pieces 1 , 2, the process for producing such coupling pieces 1 , 2 can be simplified.
• a mould comprising two mirror symmetrical mould halves. For the opening and closing of the mould, the mould halves are movable from and to each other along a substantially straight line, whereby the use of rotating mould halves can be avoided.
• the groove 21 has such a length that the pin 1 1 can be moved from the start position 28 to the stop position 29, within maximally one turn.
• the length of the groove 21 can for example be equal to the circumference of the second coupling piece 2, or smaller.
• Protrusion 11 and guide 21 can be provided with complementary, co-operating surfaces, so as to obtain an improved grip.
• Guide 21 can be provided with a recess, extending in the direction of the lower rim 24 of the second coupling piece 2, so as to facilitate the insertion of the protrusion 11 , without thereby opening the valve 9.
• the protrusion 11 can have various shapes. It can for example be square, rectangular or any other shape.
• the guide 21 can be open towards the outer surface of the second coupling piece 2, or a groove-like recess in the internal surface of the wall of the second coupling piece 2, or comprise a set of rails applied to the internal surface of the second coupling piece 2, in which the protrusion 11 can be engaged.
• the first and second coupling piece 1 , 2 are preferably provided with a snap lock 12, 13, 14, 22, for bolting the coupling in an unboltable way.
• a snap lock has the advantages of bolting automatically, form itself.
• the circumferential rim 20 of the second coupling piece 2 comprises at least one recess 22.
• the recess 22 is provided to co-operate with a lip 12, applied to the circumferential rim 16 of the first coupling piece 1.
• the lip 12 is connected with the circumferential rim 16 through a connecting piece 13.
• the lip 12 comprises at the top, a jaw 14, which is provided to co-operate with the recess 22 in the circumferential rim 20 of the second coupling piece 2. If so desired, the jaw 14 and the recess 22 can be provided with co-operating, complementary profiles.
• the jaw 14 is preferably movable from and towards the coupling piece so as to obtain an unboltable bolt, as is shown in figure 2b.
• the second coupling piece 2 comprises an extremity 27 for coupling the second coupling piece 2 to the gun 4.
• the second coupling piece 2 preferably comprises a one way valve 23 so as to avoid that the compound flows back from the gun 4 to the container 3.
• the second coupling piece 2 further comprises a lower rim 24, which fits to the outer surface of the first coupling piece 1 when the coupling is effectuated.
• the internal rim 25 of the second coupling piece 2 is provided for engaging leak free against valve 9, after effectuation of the coupling.
• a shaft 26 is provided wherein a part of the valve 9 fits, and through which the component coming from the container 3 can flow to the gun 4, through the one way valve 23.
• the first coupling piece 1 Upon effectuation of the coupling, the first coupling piece 1 is inserted into the second coupling piece 2. Thereby, the protrusion 1 1 is inserted in a start position 28 in the corresponding guide 21 , as is shown in figure 3d. Thereafter, the first coupling piece 1 is rotated with respect to the second coupling piece 2, over maximally one turn, in one continuous movement. Thereby, the pin 1 1 is moved from its start position 28, towards a stop position 29, in the direction of the arrow in figure 3d. Simultaneously, the valve 9 is moved in the direction of the internal volume of the container 3, in one continuous movement (figure 2b), and the valve seal ring 30 is partially compressed.
• valve 9 By the movement of the valve 9 in the direction of the internal volume of the container 3, the valve 9 is opined, en the compound can flow from the container 3, through the passageway 32 in the valve 9, towards the second coupling piece 2, in the direction of the arrows. Thereby, the one way valve 23 in the second coupling piece 2 is opined, where after the compound further flows in the direction of the gun 4, as is indicated by the arrows.
• the first coupling piece 1 comprises a protrusion, preferably a pin 11 which co-operates with a guide, preferably a guide 21 applied to the second coupling piece 2.
• the pin 11 is moveable within said guide 21 , in the direction of the arrow in figure 4a, between a start position 28 for inserting the pin 11 in the guide 21 , and a stop position 29 which corresponds with a coupled state of the coupling.
• an amount of play is provided in the start position 28, by means of a recess, which extends from the start position 28 in the guide 21 , towards the lower rim 34 of the second coupling piece 2.
• the second coupling piece comprises on its outer surface, at the position of the stop position 29 of the guide 21 , a lip 35.
• the lip 35 cooperates with the pin 11 , for allowing the coupling to be bolted.
• the lip 35 is, on its side which faces the pin 11 , provided with a jaw 36, for keeping the pin 11 in its stop position 29.
• the pin 11 and jaw 36 can comprise complementary, co-operating surfaces.
• the lip 35 is attached to the second coupling piece 2, by means of a connecting piece 37.
• the lip 35 is preferably moveable from and towards the pin 11 , and from and towards the second coupling piece 2.
• Such a coupling can be effectuated by inserting the first coupling piece 1 into the second coupling piece 2, and inserting the pin 11 in its start position 28 in the guide 21. Thereafter, the pin 11 is moved from its start position 28, in the direction of the stop position 29, by turning the first coupling piece 1 over maximum one turn with respect to the second coupling piece 2. When it has reached the neighbourhood of the stop position 29, the pin 11 comes into contact with the jaw 36 of the lip 35. Thereby, the lower part of lip 35 is moved by the pin 11 , in a direction that points away from the second coupling piece 2, as is indicated by the dotted line in figure 4a. When the pin 11 reaches its stop position 29, the lip 35 is moved back towards the second coupling piece 2. The coupling is than bolted, because the complementary surfaces of the pin 11 and the jaw 36, maintain the pin 11 in its stop position 29.
• the jaw 36 is moved in a direction that points away from the second coupling piece 2, by moving the upper part of the lip 35 in the direction of the second coupling piece 2. Because the pin 11 is no longer maintained in its stop position 29, by the jaw 35, the pin 11 can be moved from its stop position 29 towards its start position 28, and the coupling pieces 1 , 2 can be moved in a direction against the direction of the arrow, and be uncoupled.
• first coupling piece 20 circumferential rim

Landscapes

• Chemical & Material Sciences (AREA)
• Dispersion Chemistry (AREA)
• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Closures For Containers (AREA)
• Coating Apparatus (AREA)
• Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
• Nozzles (AREA)

Priority Applications (6)

Applications Claiming Priority (2)

Publications (1)

Family

ID=3890438

Family Applications (1)

Country Status (9)

Cited By (27)

Citations (5)

• 1997
  • 1997-08-28 DE DE69731772T patent/DE69731772T2/de not_active Expired - Lifetime
  • 1997-08-28 BE BE9700704A patent/BE1011341A6/nl active
  • 1997-08-28 EE EEP199900432A patent/EE04488B1/xx unknown
  • 1997-08-28 AU AU41068/97A patent/AU4106897A/en not_active Abandoned
  • 1997-08-28 PL PL97363123A patent/PL188358B1/pl unknown
  • 1997-08-28 PL PL97335973A patent/PL188344B1/pl unknown
  • 1997-08-28 WO PCT/BE1997/000096 patent/WO1998043894A1/en active IP Right Grant
  • 1997-08-28 CZ CZ19993410A patent/CZ295569B6/cs not_active IP Right Cessation
  • 1997-08-28 EP EP97938698A patent/EP0975533B1/de not_active Expired - Lifetime
  • 1997-08-28 ES ES97938698T patent/ES2234027T3/es not_active Expired - Lifetime

Patent Citations (5)

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