EP0441538A2 - Appareil de distribution - Google Patents

Appareil de distribution Download PDF

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Publication number
EP0441538A2
EP0441538A2 EP91300786A EP91300786A EP0441538A2 EP 0441538 A2 EP0441538 A2 EP 0441538A2 EP 91300786 A EP91300786 A EP 91300786A EP 91300786 A EP91300786 A EP 91300786A EP 0441538 A2 EP0441538 A2 EP 0441538A2
Authority
EP
European Patent Office
Prior art keywords
container
components
dispensing apparatus
outlet chamber
container means
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP91300786A
Other languages
German (de)
English (en)
Other versions
EP0441538A3 (en
Inventor
Thomas Campbell Wallace
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.)
Rawlplug Co Ltd
Original Assignee
Rawlplug Co Ltd
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
Priority claimed from GB909002438A external-priority patent/GB9002438D0/en
Priority claimed from GB909026192A external-priority patent/GB9026192D0/en
Application filed by Rawlplug Co Ltd filed Critical Rawlplug Co Ltd
Publication of EP0441538A2 publication Critical patent/EP0441538A2/fr
Publication of EP0441538A3 publication Critical patent/EP0441538A3/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/32—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging two or more different materials which must be maintained separate prior to use in admixture
    • B65D81/3233—Flexible containers disposed within rigid containers
    • 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
    • B65D83/0005—Containers or packages provided with a piston or with a movable bottom or partition having approximately the same section as the container

Definitions

  • This invention relates to dispensing apparatus and to a method of using it.
  • Expanding bolts are a traditional way of effecting this in situations where the structure has little or no resilience and is therefore incapable of providing resistance to withdrawal of a simple screw or bolt. Expanding bolts, however, are relatively expensive and require a hole of the correct diameter to be drilled into the structure.
  • curable resins used are generally in two component parts each of which is reactive with the other to provide the resin on mixing. In one system these components have been provided in separate rigid chambers of a delivery apparatus, each chamber being cylindrical and having its own piston which is actuable to drive the reactive component from the chamber into a common outlet in which the components are mixed and thence delivered through a nozzle.
  • each chamber is provided with an individual piston which drives the respective reactant into a common mixing outlet.
  • dispensing apparatus comprising a first component and a second component in flexible container means, a common outlet chamber disposed so as to receive the first and second components from the container means, and means for mixing the first and second components in the common outlet chamber to form a reactive mixture.
  • the first and second components are expelled from the container means into the common outlet chamber by a compression force applied to the container means by compression means which could comprise a psiton.
  • the reactive mixture may be a curable mix which may form a rigid final product.
  • the components may for example be monomers which react to produce a thermosetting polymer resin.
  • the first and second components when mixed, could form a deformable sealant material, such as an elastomeric polymer.
  • the final mixed product is a thermosetting resin
  • it is a polyester resin and one component may be the resin and the other component a catalyst to cure the resin.
  • the ratio of resin to catalyst is 7:1.
  • the first and second components have substantially similar flow properties to ensure that the components are dispensed from the apparatus in the desired proportions.
  • the components may be held in close contact within the container means, in which case it is desirable that they should be reactive to a substantial extent only when subjected to some externally-applied treatment such as heat or intimate mixing, so as to provide a reasonable shelf life and handling capability for the apparatus.
  • the components may be physically separated within the container means, for example by a wall or membrane, so that they come into contact only on entering the common outlet chamber; the components may be spontaneously reactive.
  • the container means may be a single container, a separate container for each component, or a combination of both these.
  • the container means comprises an outer container which contains the first component and an inner container located within the outer container and in the first component and which contains the second component.
  • one component is a resin and the other is a catalyst and they are mixed in the ratio 7:1
  • the first component is the resin and the second component is the catalyst, so that the resin is located between the outer and inner containers and the catalyst is located in the second container.
  • a portion of the surface of the outer and inner containers coincide, and where the containers are cylinders the portion is a line which extends along the length of both cylinders.
  • the line is the seam of the containers.
  • the container could be polyethylene. However, preferably the container is a polyester-nylon laminate comprising a layer of nylon sandwiched between two layers of polyester. This would reduce solvent evaporation from the components and increase the shelf life of the container and components.
  • the flexible container could be formed from a foil plastic laminate and this would reduce expansion of the flexible container under pressure.
  • the container means may be disposed within a housing such for example as a cylinder, and a piston may be provided in the housing to compress the container means to drive the components into the common outlet.
  • a delivery gun may be provided to actuate the piston.
  • the container means could be compressed manually by an operator, compressed by a roller device, compressed by rolling the container means on to itself or compressed by a power-assisted pressure applicator.
  • the external dimensions of the flexible container are such that when the piston compresses the flexible container, the pressure exerted on the flexible container is not substantially coupled to the walls of the cylinder.
  • the cylinder is a standard plastic cylinder from which, conventionally, mastic silicon sealant is dispensed.
  • the use of the standard plastic cylinder as the housing enables the components to be dispensed using a standard, "off the shelf” mastic gun and obviates the need for a special delivery gun.
  • the common outlet chamber is removable to enable the outlet chamber to be replaced.
  • the outlet chamber is coupled on to the housing.
  • the outlet chamber comprises a nozzle which dispenses the first and second components from the apparatus and typically the mixing means is located within the nozzle.
  • the outlet chamber may include cutting means so that when the flexible container means is sealed, the cutting means may be used to open the container means so the first and second components may pass into the outlet chamber.
  • the cutting means could comprise a blade mounted on the outlet chamber which cuts the container means when the outlet chamber and container means are moved relative to each other, or a number of sharp points mounted on the outlet chamber which may pierce the container means.
  • the container means is opened so that the portion of the container means which is cut remains attached to the rest of the container means.
  • the invention is also a method of using dispensing apparatus comprising ejecting from flexible container means first and second reactive components into a common outlet, mixing the components together in the outlet and delivering the resulting mix from the outlet.
  • the method could be used for dispensing, for example a curable mix, into a pre-drilled hole in rigid material.
  • the container illustrated is a length of plastics membrane formed by extrusion into first and second channels one within the other.
  • the channel walls of 2, 4 are interconnected at 6.
  • the first and second channels are filled with monomers 8, 10 which when mixed react to form a curable resin which spontaneously sets rigid.
  • the channels are crimped together for closure at both ends.
  • the monomers 8, 10 are a polyester resin and catalyst, respectively in the ratio of 7 parts resin to 1 part catalyst.
  • Figs 2 and 4 the container is formed by a single-walled extruded membrane 12, again crimped at both ends, and filled with first and second monomers 14, 16.
  • the monomers 14, 16 are in contact along their interface 18, but do not react until intimately mixed together.
  • the apparatus of this embodiment of the invention has a flexible container 20 similar to that of Figs 1 and 3 disposed within a cylindrical tube 22.
  • a plastics plug 24 is provided within the tube 22 at one end and is slidable along the interior of the tube.
  • the other end of the tube 22 is closed by a plastics cap 26 which fits over the tube end and has an externally-threaded spout 28.
  • a tapered nozzle 30 is internally threaded and fits onto the spout 28.
  • the tube 22 is a standard tube which is normally used for single component silicon sealant and which fits a standard mastic delivery gun.
  • the tube 22 has an inside diameter of approximately 46mm.
  • the flexible container 20 has an outside diameter of approximately 40mm so that there is a gap between the flexible container 20 and the tube 22.
  • the nozzle 30 has an insert 32 within its bore at an end portion adjacent the cap 26, the insert 32 being in the form of a central spindle from which extend radial projections for interrupting flow of material along the nozzle 30 and producing a turbulent and mixing effect on the material.
  • the container 20 When the apparatus is to be used, the container 20 is ruptured across one end with, for example, a knife or other cutter, and placed into the tube 22 with the ruptured end adjacent the cap 26. The plug 24 is then inserted into the other end of the tube 22 to retain the container 20.
  • the apparatus is then fitted into a standard delivery gun 34 such as those in common use for delivering sealant and other materials in the building and do-it-yourself markets.
  • the gun 34 has a lever-operated piston 36 which engages the slidable plug 24 and on actuation drives the plug 24 along the tube 22, compressing the container 20. This forces the reactive components from their respective channels in the container 20 through the ruptured end of the container and thence through the spout 28 into the nozzle 30.
  • the reactive components are originally held in the channels of the container 20 in the correct proportions for full reaction between them, and the cross-sections of the channels are selected accordingly.
  • the components reach the radial projections of the insert 32 and move past them they are mixed thoroughly in the correct proportions until they form a curable resin.
  • the container 20 will be of sufficient capacity for use in filling a number of holes, and it will be appreciated that the resin will cure in the nozzle 30 if this capacity is not fully utilised in less time than it takes for the resin to cure after mixing.
  • the nozzle 30 can be unscrewed from the spout 28 and replaced by a fresh nozzle 30; the cap 26 may also be replaced if necessary, and both components can be of inexpensive material and construction.
  • the container 20 When the container 20 is exhausted it can be disposed of, and the only waste material is the membrane of which it is made, the nozzle 30, cap 26 and plug 24.
  • the more substantial tube 22 can be re-used as it is substantially uncontaminated by resin, being protected by the container 20 and cap 26.
  • the apparatus and method of these embodiments of the invention provide a simple and inexpensive means of delivering curable resin to a fixing system and allow a substantial proportion of the apparatus to be re-used. They also allow the use of a conventional inexpensive delivery gun instead of requiring a custom-built item.
  • the tube 22 may be formed by an extrusion process instead of by a moulding process. Normally this is not possible as extruded tubes do not have a fine surface finish and so the plug 24 will not seal properly with the inside wall.
  • extruded tubes are cheaper and do not require a slight taper to enable them to be removed from the mould. Hence, the tube 22 can be extruded with a thicker wall using cheaper tooling than for conventional systems.
  • puncturing means may be provided within the tube or cap so that the container can be inserted intact into the tube prior to use and is ruptured automatically on application of force at the commencement of the mixing and delivery operation.
  • an alternative delivery system to the gun may be used, such as manual compression of the container or rolling the container up on itself to provide the compression force.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Coating Apparatus (AREA)
EP19910300786 1990-02-03 1991-01-31 Dispensing apparatus Withdrawn EP0441538A3 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB9002438 1990-02-03
GB909002438A GB9002438D0 (en) 1990-02-03 1990-02-03 Apparatus and method of providing a curable mix
GB9026192 1990-12-01
GB909026192A GB9026192D0 (en) 1990-12-01 1990-12-01 Apparatus and method of providing a curable mix

Publications (2)

Publication Number Publication Date
EP0441538A2 true EP0441538A2 (fr) 1991-08-14
EP0441538A3 EP0441538A3 (en) 1992-06-03

Family

ID=26296605

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910300786 Withdrawn EP0441538A3 (en) 1990-02-03 1991-01-31 Dispensing apparatus

Country Status (1)

Country Link
EP (1) EP0441538A3 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0605890A2 (fr) * 1993-01-04 1994-07-13 Package Research, Inc. Distributeur pour substances liquides
US5332122A (en) * 1991-11-12 1994-07-26 Thera Patent Gmbh & Co. Kg Gesellschaft Fur Industrielle Schutzrechte Container for flowable substances
DE4327755A1 (de) * 1993-08-18 1995-02-23 Upat Max Langensiepen Kg Kartusche für Zweikomponentenmassen sowie Verfahren und Vorrichtung zum Auspressen der Komponente
US5443181A (en) * 1992-09-19 1995-08-22 Hilti Aktiengesellschaft Cartridge and piston for dispensing mass
EP0787661A1 (fr) * 1995-07-19 1997-08-06 Exchem plc Appareil distributeur réutilisable
US5699935A (en) * 1996-01-18 1997-12-23 The Procter & Gamble Company Inverting bag co-dispenser
US5816446A (en) * 1995-02-23 1998-10-06 Ecolab Inc. Dispensing a viscous use solution by diluting a less viscous concentrate
WO2006111297A1 (fr) * 2005-04-16 2006-10-26 Fischerwerke Artur Fischer Gmbh & Co. Kg Cartouche a plusieurs constituants
US7775399B2 (en) * 2003-02-26 2010-08-17 Artex-Rawlplug Limited Dispensing apparatus
US8220668B2 (en) * 2005-09-03 2012-07-17 Artex-Rawplug Limited Cartridge dispenser
WO2015157006A1 (fr) * 2014-04-10 2015-10-15 Dow Global Technologies Llc Procédé et appareil améliorés de distribution de systèmes réactifs à deux parties

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4676657A (en) * 1985-09-30 1987-06-30 Alexander Botrie Cartridge for the dispensing of two component systems from caulking guns
US4801008A (en) * 1987-03-02 1989-01-31 W. R. Grace & Co. Dispensing device having static mixer in nozzle
EP0340657A1 (fr) * 1988-05-06 1989-11-08 ARA-Werk Krämer GmbH + Co. Emballage cylindrique pour produits pâteux, en particulier emballage tubulaire flexible, procédé et dispositif de fabrication d'un tel emballage

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4676657A (en) * 1985-09-30 1987-06-30 Alexander Botrie Cartridge for the dispensing of two component systems from caulking guns
US4801008A (en) * 1987-03-02 1989-01-31 W. R. Grace & Co. Dispensing device having static mixer in nozzle
EP0340657A1 (fr) * 1988-05-06 1989-11-08 ARA-Werk Krämer GmbH + Co. Emballage cylindrique pour produits pâteux, en particulier emballage tubulaire flexible, procédé et dispositif de fabrication d'un tel emballage

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5419460A (en) * 1991-11-12 1995-05-30 Thera Patent Gmbh & Co. Kg Gesellschaft Fuer Industrielle Schutzrechte Container for flowable substances
US5332122A (en) * 1991-11-12 1994-07-26 Thera Patent Gmbh & Co. Kg Gesellschaft Fur Industrielle Schutzrechte Container for flowable substances
AU652675B2 (en) * 1991-11-12 1994-09-01 3M Espe Ag A container for flowable substances
US5443181A (en) * 1992-09-19 1995-08-22 Hilti Aktiengesellschaft Cartridge and piston for dispensing mass
EP0605890B1 (fr) * 1993-01-04 1999-11-24 Package Research, Inc. Distributeur pour substances liquides
EP0605890A2 (fr) * 1993-01-04 1994-07-13 Package Research, Inc. Distributeur pour substances liquides
DE4327755C2 (de) * 1993-08-18 1999-02-11 Upat Max Langensiepen Kg Kartusche für Zweikomponentenmassen
DE4327755A1 (de) * 1993-08-18 1995-02-23 Upat Max Langensiepen Kg Kartusche für Zweikomponentenmassen sowie Verfahren und Vorrichtung zum Auspressen der Komponente
US5816446A (en) * 1995-02-23 1998-10-06 Ecolab Inc. Dispensing a viscous use solution by diluting a less viscous concentrate
EP0787661A1 (fr) * 1995-07-19 1997-08-06 Exchem plc Appareil distributeur réutilisable
US5699935A (en) * 1996-01-18 1997-12-23 The Procter & Gamble Company Inverting bag co-dispenser
US7775399B2 (en) * 2003-02-26 2010-08-17 Artex-Rawlplug Limited Dispensing apparatus
US7793800B2 (en) 2005-04-16 2010-09-14 Fischerwerke Artur Fischer Gmbh & Co. Kg Multicomponent cartridge
WO2006111297A1 (fr) * 2005-04-16 2006-10-26 Fischerwerke Artur Fischer Gmbh & Co. Kg Cartouche a plusieurs constituants
US8220668B2 (en) * 2005-09-03 2012-07-17 Artex-Rawplug Limited Cartridge dispenser
WO2015157006A1 (fr) * 2014-04-10 2015-10-15 Dow Global Technologies Llc Procédé et appareil améliorés de distribution de systèmes réactifs à deux parties
CN106163931A (zh) * 2014-04-10 2016-11-23 陶氏环球技术有限责任公司 用于施配反应性二部分系统的改进的方法和设备
KR20160145629A (ko) * 2014-04-10 2016-12-20 다우 글로벌 테크놀로지스 엘엘씨 반응성 2-성분 시스템 분배용 개량 방법 및 장치
JP2017512726A (ja) * 2014-04-10 2017-05-25 ダウ グローバル テクノロジーズ エルエルシー 反応二液系を分配するための改善された方法及び装置
US9821512B2 (en) 2014-04-10 2017-11-21 Dow Global Technologies Llc Method and apparatus for dispensing reactive two-part systems
CN106163931B (zh) * 2014-04-10 2019-05-17 陶氏环球技术有限责任公司 用于施配反应性二部分系统的改进的方法和设备

Also Published As

Publication number Publication date
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