EP1688186A2 - Dispenser voor schuimende kunststoffen - Google Patents

Dispenser voor schuimende kunststoffen Download PDF

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Publication number
EP1688186A2
EP1688186A2 EP20060100131 EP06100131A EP1688186A2 EP 1688186 A2 EP1688186 A2 EP 1688186A2 EP 20060100131 EP20060100131 EP 20060100131 EP 06100131 A EP06100131 A EP 06100131A EP 1688186 A2 EP1688186 A2 EP 1688186A2
Authority
EP
Grant status
Application
Patent type
Prior art keywords
position
ball valve
dispenser
foam
channel
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.)
Withdrawn
Application number
EP20060100131
Other languages
German (de)
French (fr)
Other versions
EP1688186A3 (en )
Inventor
Bernard Theodorus Smit
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.)
PROBOUW TRADING BV
Original Assignee
PROBOUW TRADING B V
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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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D83/00Containers or packages with special means for dispensing contents
    • B65D83/14Containers 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
    • B65D83/16Containers 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
    • B65D83/20Containers 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
    • B65D83/201Lever-operated actuators
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D83/00Containers or packages with special means for dispensing contents
    • B65D83/14Containers 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
    • B65D83/16Containers 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
    • B65D83/20Containers 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
    • B65D83/207Actuators 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D83/00Containers or packages with special means for dispensing contents
    • B65D83/14Containers 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
    • B65D83/28Nozzles, nozzle fittings or accessories specially adapted therefor
    • B65D83/30Nozzles, nozzle fittings or accessories specially adapted therefor for guiding the flow of spray, e.g. funnels, hoods
    • B65D83/303Nozzles, nozzle fittings or accessories specially adapted therefor for guiding the flow of spray, e.g. funnels, hoods using extension tubes located in or at the outlet duct of the nozzle assembly
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D83/00Containers or packages with special means for dispensing contents
    • B65D83/14Containers 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
    • B65D83/28Nozzles, nozzle fittings or accessories specially adapted therefor
    • B65D83/30Nozzles, nozzle fittings or accessories specially adapted therefor for guiding the flow of spray, e.g. funnels, hoods
    • B65D83/306Actuators formed as a rigid elongate spout

Abstract

Dispenser for foaming plastics, such as polyurethane foam, with a foam channel (1) that is provided at one end with an adapter (2) for connecting a pressurised container (3) containing the foaming plastic and has an outlet opening (4) at the other end, as well as a metering mechanism (5) for regulating the quantity of foam that passes through the channel, wherein the foam channel (1) extending from the adapter (2) to the outlet opening (4) is made straight and wherein the metering mechanism (5) has a valve, especially a ball valve, in the straight foam channel (1), which valve can move between a first fully closed position and a second fully open position.

Description

  • The invention relates to a dispenser for foaming plastics, such as polyurethane foam, with a foam channel that is provided at one end with an adapter for connecting a pressurised container containing the foaming plastic and has an outlet opening at the other end, as well as a metering mechanism for regulating the quantity of foam that passes through the channel.
  • Such a dispenser is disclosed, for example, in EP 0 255 060 in which a spray gun is described with a channel that is provided at one end with a connection for a pressurised container and has an outlet opening at the other end, as well as a control valve operated by means of a handle and a ball valve fitted in the channel close to said connection. This ball valve is used to replace the non-return valve known in the state of the art and has the advantage of providing an improved sealing effect, as a result of which hardening of the foam located in the channel between the control valve and this ball valve is prevented. A further advantage claimed is that the pressurised container can now be emptied to normal ambient pressure because the pressure from the pressurised container does not have to counteract the spring force of a non-return valve.
  • One disadvantage of said known dispenser is that it is relatively expensive because two valves are used, i.e. the control valve for metering and the ball valve for sealing the channel on the container side; in addition, the various components must be assembled with a housing. A further disadvantage of the embodiment shown is that this has a channel with a V-shaped bend, which makes it harder to clean hardened foam out of this channel.
  • The aim of the present invention to provide a dispenser for foaming plastics which is easy to clean, is reliable in operation and is, moreover, relatively economical to manufacture.
  • This aim is achieved in that the foam channel extending from the adapter to the outlet opening is made straight and in that the metering mechanism has a valve, especially a ball valve, in the straight foam channel, which valve can move between a first fully closed position and a second fully open position.
  • The term "ball valve" must be understood in a wide sense in this context, covering valves with a rotating body provided with a bore, whereby the valve is closed when the bore is oriented transversely relative to the channel and open when the bore connects sections of the channel located at each end of the bore. The rotating body can therefore just as easily be a cylindrical body as a spherical body.
  • The advantage of such an embodiment is that the ball valve has practically no influence on the foam channel passage in the fully open position which, in combination with the foam channel extending in a straight line from the adapter to the outlet opening, results in a dispenser which is very easy to clean. If foam has hardened in the channel, this can easily be removed by clearing the channel with a stick or rod. Such a stick or rod is preferably made of a material that will not damage the dispenser, such as a plastic.
  • In addition, a ball valve provides a very reliable seal and it can also be operated in the event that foam has hardened in the ball valve, because no material is displaced when the valve is operated.
  • Furthermore, it is very easy to construct the dispenser in that only one valve has to be provided and, because no separate housing with a handle has to be provided, the pressurised container can be held in the hand and manipulated together with the dispenser mounted on it.
  • A different type of valve other than a ball valve, for example a sliding valve, is also conceivable.
  • The metering mechanism preferably additionally has an operating handle for moving the ball valve between a fully closed position for halting the material flow and an at least partially open position for delivering foam.
  • The operating handle is preferably fixed to the ball of the ball valve and the dispenser is designed such that the operating handle can be pivoted between a first position corresponding to the closed position of the ball valve for halting the material flow and a second position corresponding to the fully open position of the ball valve to enable the foam channel to be cleaned.
  • Furthermore, the operating handle is preferably designed such that, with the dispenser mounted on the pressurised container, said handle can be pivoted from the first position to an intermediate position between the first position and the second position, which intermediate position is defined by the operating handle coming to a stop against the pressurised container, and that, with the dispenser detached from the pressurised container, said handle can be pivoted from the first position to the second position. It is possible in this way to prevent the ball valve from being accidentally fully opened with the dispenser mounted on the pressurised container, as this would result in excessively fast dispensing of foam, while the ball valve can still be fully opened for cleaning the foam channel with the dispenser detached from the pressurised container.
  • Furthermore, a spring element is preferably provided for pretensioning the metering mechanism in the state where the ball valve is in the closed position, so that a force must be exerted against this pretension to operate the metering mechanism for dispensing foam and that, in the absence of this operating force, the metering mechanism automatically returns to the state where the ball valve is in the closed position.
  • Furthermore, a releasable locking element is preferably provided for locking the metering mechanism in the state where the ball valve is in the closed position, so that it is possible to prevent accidental operation of the metering mechanism.
  • Furthermore, the outlet opening is preferably provided with connecting means for a hose, for example flexible or rigid, such as a disposable plastic tube, for directing the foam to the desired location. Such a plastic tube can, for example, be provided with a bend and can be of any desired length, so that even locations which are difficult to access can be reached.
  • Preferably, the section of the foam channel located between the adapter and the ball valve is made as short as possible to minimise the amount of foam exposed to the atmosphere when the adapter is detached from an empty pressurised container.
  • The invention will now be explained in more detail on the basis of an embodiment, with reference to the drawings, in which:
    • Figure 1 is a front view in section of a dispenser according to the invention, and
    • Figure 2 is a side view of the dispenser according to the invention, in which three positions of an operating handle are shown.
  • Figure 1 shows a section through the dispenser according to the invention. This comprises a foam channel 1 that is provided at one end with an adapter 2 for connecting a pressurised container 3 containing the foaming plastic and has an outlet opening 4 at the other end, as well as a metering mechanism 5 for regulating the quantity of foam that passes through the channel. The foam channel 1 extends from the adapter 2 to the outlet opening 4 and is made straight. A ball valve 6 which can move between a first fully closed position and a second fully open position is provided in the foam channel 1.
  • The metering mechanism has an operating handle 7 which is fixed to the ball 8 of the ball valve 6 and the dispenser is designed such that the handle can be pivoted between a first position p1 corresponding to the closed position of the ball valve and a second position p2 corresponding to the fully open position of the ball valve, see Figure 2. When the ball valve is in the fully open position, it is possible to clear the foam channel with a stick or rod or the like, so that contamination such as hardened foam can be removed mechanically. To this end, the handle has a widened section 9, so that, when the dispenser has been detached from the pressurised container, it can pass by the adapter 2 and can be moved into the second position p2. When the handle is in the second position p2, it is possible to connect a pressurised container or reservoir to the adapter, for example a container with a cleaning fluid such as acetone, to clean the foam channel.
  • In addition, the operating handle is designed such that, with the dispenser mounted on the pressurised container, said handle can be pivoted from the first position p 1 to an intermediate position p3 between the first position p1 and the second position p2, which intermediate position p3 is defined by the operating handle 7 coming to a stop against the pressurised container 3.
  • An extension spring 10 acts on the operating handle 7 and pretensions it in the position where the ball valve is closed, the spring 10 tensioning the operating handle 7 against stop 11.
  • A safety catch 12 is attached to the operating handle 7 such that it can hinge and can be moved between a folded position whereby the movement of the operating handle is not impeded and an extended position whereby the safety catch 12 is braced against a pressurised container 3 mounted on the adapter 2, thereby barring movement of the operating handle and locking the metering mechanism in the position in which the ball valve is closed.
  • The outlet opening 4 of the foam channel is provided with connecting means for a hose 13 in the form of a hose post 14 which is screwed into the ball valve housing. The hose post 14 is provided with corrugations for gripping a hose 13 slid over the hose post. The hose 13 shown is somewhat rigid and is provided with a bend, which enhances the usefulness of the dispenser for dispensing foam in locations with difficult access. If the hose becomes blocked with, for example, hardened foam, it can be thrown away.
  • The section 15 of the foam channel located between the adapter and the ball valve is made as short as possible by screwing the adapter directly into the housing of the ball valve 6.

Claims (10)

  1. Dispenser (16) for foaming plastics, such as polyurethane foam, with a foam channel (1) that is provided at one end with an adapter (2) for connecting a pressurised container (3) containing the foaming plastic and has an outlet opening (4) at the other end, as well as a metering mechanism (5) for regulating the quantity of foam that passes through the channel, characterised in that the foam channel (1) extending from the adapter (2) to the outlet opening (4) is made straight and in that the metering mechanism (5) has a valve (6), especially a ball valve, in the straight foam channel (1), which valve can move between a first fully closed position and a second fully open position.
  2. Dispenser according to Claim 1, wherein the metering mechanism (5) additionally has an operating handle (7) for moving the ball valve (6) between a fully closed position and an at least partially open position.
  3. Dispenser according to Claim 2, wherein the operating handle (7) is fixed to the ball (8) of the ball valve (6) and the dispenser (16) is designed such that the operating handle can be pivoted between a first position corresponding to the closed position of the ball valve and a second position corresponding to the fully open position of the ball valve.
  4. Dispenser according to Claim 3, wherein the operating handle (7) is designed such that:
    • with the dispenser (16) mounted on the pressurised container (3), said handle can be pivoted from the first position to an intermediate position between the first position and the second position, which intermediate position is defined by the operating handle (7) coming to a stop against the pressurised container (3), and
    • with the dispenser (16) detached from the pressurised container (3), said handle can be pivoted from the first position to the second position.
  5. Dispenser according to one of the preceding claims, wherein a spring element is provided for pretensioning the metering mechanism in the state where the ball valve (6) is in the closed position.
  6. Dispenser according to Claim 5, wherein a spring (10) acts on the operating handle (7) for pretensioning it in the position where the ball valve (6) is in the closed position.
  7. Dispenser according to one of the preceding claims, wherein a releasable locking element is provided for locking the metering mechanism in the state where the ball valve (6) is in the closed position.
  8. Dispenser according to Claim 7, wherein a locking element (12) acts on the operating handle (7) for locking it in the position where the ball valve (6) is closed.
  9. Dispenser according to one of the preceding claims, wherein the outlet opening (4) is provided with connecting means (14) for a hose (13).
  10. Dispenser according to one of the preceding claims, wherein the section of the foam channel located between the adapter (2) and the ball valve (6) is made as short as possible.
EP20060100131 2005-01-07 2006-01-06 Dispenser voor schuimende kunststoffen Withdrawn EP1688186A3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL1027978A NL1027978C2 (en) 2005-01-07 2005-01-07 Dispenser for foaming plastics.

Publications (2)

Publication Number Publication Date
EP1688186A2 true true EP1688186A2 (en) 2006-08-09
EP1688186A3 true EP1688186A3 (en) 2006-08-16

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ID=34974848

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20060100131 Withdrawn EP1688186A3 (en) 2005-01-07 2006-01-06 Dispenser voor schuimende kunststoffen

Country Status (2)

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EP (1) EP1688186A3 (en)
NL (1) NL1027978C2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009087239A1 (en) * 2008-01-10 2009-07-16 Altachem N.V. Ball valve basket with idiot proof safety
WO2011061531A1 (en) * 2009-11-17 2011-05-26 The University Of Salford Spray discharge assembly
WO2011061481A1 (en) * 2009-11-17 2011-05-26 The University Of Salford Aerosol spray device
EP2371738A1 (en) * 2010-03-29 2011-10-05 Soudal Improved disposable container
WO2017139128A1 (en) * 2016-02-09 2017-08-17 Dow Global Technologies Llc Single action dispensing device with sliding sleeve
WO2017139131A1 (en) * 2016-02-09 2017-08-17 Dow Global Technologies Llc Single action dispensing device with sliding sleeve having a plug

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2856011A1 (en) * 1978-12-23 1980-07-03 Fomo Schaumstoff Gmbh & Co Kg Spray bottle with discharge device - has adaptor clamped to valve plate accommodating hose with stop valve
EP0255060A2 (en) * 1986-07-28 1988-02-03 Firma COCON Kunststoffen bv Spray-gun for spraying foamable plastics, especially single-component polyurethane foam
US4928859A (en) * 1988-10-28 1990-05-29 Krahn Roy J Quick disconnect for aerosol spray can
US6840461B1 (en) * 2003-10-03 2005-01-11 Whitmire Micro-Gen Research Laboratories, Inc. Adapter clamp for aerosol can

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2856011A1 (en) * 1978-12-23 1980-07-03 Fomo Schaumstoff Gmbh & Co Kg Spray bottle with discharge device - has adaptor clamped to valve plate accommodating hose with stop valve
EP0255060A2 (en) * 1986-07-28 1988-02-03 Firma COCON Kunststoffen bv Spray-gun for spraying foamable plastics, especially single-component polyurethane foam
US4928859A (en) * 1988-10-28 1990-05-29 Krahn Roy J Quick disconnect for aerosol spray can
US6840461B1 (en) * 2003-10-03 2005-01-11 Whitmire Micro-Gen Research Laboratories, Inc. Adapter clamp for aerosol can

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009087239A1 (en) * 2008-01-10 2009-07-16 Altachem N.V. Ball valve basket with idiot proof safety
WO2011061531A1 (en) * 2009-11-17 2011-05-26 The University Of Salford Spray discharge assembly
WO2011061481A1 (en) * 2009-11-17 2011-05-26 The University Of Salford Aerosol spray device
CN102781791A (en) * 2009-11-17 2012-11-14 索尔福德大学 Spray discharge assembly
US8752737B2 (en) 2009-11-17 2014-06-17 The University Of Salford Aerosol spray device
CN102781791B (en) * 2009-11-17 2015-03-25 索尔福德阀门有限公司 Spray discharge assembly
US9296549B2 (en) 2009-11-17 2016-03-29 The Salford Valve Company Limited Spray discharge assembly
EP2371738A1 (en) * 2010-03-29 2011-10-05 Soudal Improved disposable container
BE1020139A3 (en) * 2010-03-29 2013-05-07 Soudal Improved disposable container.
WO2017139128A1 (en) * 2016-02-09 2017-08-17 Dow Global Technologies Llc Single action dispensing device with sliding sleeve
WO2017139131A1 (en) * 2016-02-09 2017-08-17 Dow Global Technologies Llc Single action dispensing device with sliding sleeve having a plug

Also Published As

Publication number Publication date Type
EP1688186A3 (en) 2006-08-16 application
NL1027978C2 (en) 2006-07-10 grant

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