GB2226855A - Sealant applicator - Google Patents

Sealant applicator Download PDF

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Publication number
GB2226855A
GB2226855A GB8927498A GB8927498A GB2226855A GB 2226855 A GB2226855 A GB 2226855A GB 8927498 A GB8927498 A GB 8927498A GB 8927498 A GB8927498 A GB 8927498A GB 2226855 A GB2226855 A GB 2226855A
Authority
GB
United Kingdom
Prior art keywords
cylinder
sealant
sachet
cutting
outlet conduit
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.)
Granted
Application number
GB8927498A
Other versions
GB2226855B (en
GB8927498D0 (en
Inventor
Gordon Arthur Hewlett
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.)
VICK STEVE Ltd
Original Assignee
VICK STEVE 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
Application filed by VICK STEVE Ltd filed Critical VICK STEVE Ltd
Publication of GB8927498D0 publication Critical patent/GB8927498D0/en
Publication of GB2226855A publication Critical patent/GB2226855A/en
Application granted granted Critical
Publication of GB2226855B publication Critical patent/GB2226855B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00583—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes the container for the material to be dispensed being deformable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00553—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with means allowing the stock of material to consist of at least two different components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/00586—Means, generally located near the nozzle, for piercing or perforating the front part of a cartridge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/01—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with manually mechanically or electrically actuated piston or the like
    • 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
    • B65D83/0055—Containers or packages provided with a flexible bag or a deformable membrane or diaphragm for expelling the contents
    • B65D83/0072—Containers or packages provided with a flexible bag or a deformable membrane or diaphragm for expelling the contents the contents of a flexible bag being expelled by a piston or a movable bottom or partition provided in the container or the package

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Description

1 SEALANT APPLICATOR The present invention relates to sealant applicators
and particularly to those used for pumping expanding foam compositions into pipes.
Particularly for closing off flow passages within pipes, or for filling other large cavities, it is known to use a settable foam composition. This is generally produced by mixing a resin and a hardener which together form an expanding foam composition. Thus resin and hardener are supplied in separate containers and are mixed immediately prior to use. The mixing is generally carried out in an open tub and the reacting mixture --s then Doured into a cartridge for injection into the pipe. The components may contain hazardous chemicals. so -..nat the operator should be provided -.,;i-.h r)rotec-,-:-.-e clothing. Furthermore after injection --f the sealant, the cartridge, mix-ing tub and mixing spat,,,:--a all have to be discarded, which is not only wasteful but poses further toxic risks.
In addition, the acid residues left in the hardener container have to be neutra":-zed with water before the container is disposed of. The subject =atter of the present invention may overcome these problems-by providing methods and means for the safer handling and disposal of these materials.
It is known to provide a sachet having compartments for sealant and hardener, separated by a rupturable barrier. Thus predetermined quantities of sealant and 2 1 ' C' 2 hardener can be mixed together without hazard. However, the sachet has then to be opened and the contents are then applied in a conventional manner, with the usual drawbacks.
The present invention provides a sealant applicator device comprising a pis ton- and- cylinder assembly wherein the cylinder has an outlet conduit and a cutting means projecting into the cylinder interior whereby a sachet received in the cylinder is urgeable by the piston against the cutting element. -ing element may The curt e provided by a disposable 1 the nozz.e head.%?hich provides an end wall portion -- cylinder and the outlet condu-z. Alternatively the entire assembly may be disposable. The cutting means may comprise an annular array cutting elements disposed around the outlet conduit. The cutting means may ccmnrise a domed portion located wi--h-;n the cyl-nder w.-;z- its convex side facing away fro= the end wall through which the conduit extends. The do--ed portion has an opening which is aligned with the our-let conduJt; the cuttine elements being disposed around said opening.
The present invention also provides a method of dispensing a sealant which comprises the steps of:
a) placing a closed sachet of sealant iln the 27. cylinder interior of a sealant applicator generaIly as indicated above; b) urging the piston into the.cylinder so that the c. - 3 sachet is urged against the outlet conduit and is pierced by said cutting means; and C) allowing and/or causing said sealant to leave said cylinder via the outlet conduit.
In order that the present invention may be more clearly understood, some embodiments will now be described by way of example, with reference to the accompanying drawings wherein:
Fig. 1 is a schematic exploded view of the component parts of one embodiment of a sealant applicator; a schematic L-lan view of the dist)osable _w - 2:,:
Fig. ozzle of Fig. 54sposable tig embodiment; Fig. - shows a detail cfFig. 4 on a larger scale.
Figs. 1-3 show a seal ant applicator 10, which,:ompr-;ses a hollow cylindrical body 12, a disposable nozzle head 1-4, a disposable injection tube 16 and a piston component 18 slidable within the hollow cylindrical body 12. The body 12 is defIned by a cylinder wall 13. lt is open at one end to provide an inlet 20, and partly closed at the other end by an annular wall 24 whose central opening defines an outlet 22.
The disposable nozzle 1-4 comprises an annular plate 26 with a short coaxial tubular sleeve 28. so that an S the sealant applicator; S a schemat-' c side elevazion of the nozzle with compressed empty sachet; is a part-sect.onal view of a second cl 1 4 26. The diameter of the plate 26 is slightly less than the internal diameter of the body 12 and similarly the diameter of the cylindrical sleeve 28 is slightly less than that of the outlet 22. Thus the disposable nozzle head 14 may be inserted into the body 12 with the tube 28 projecting out of the outlet 22 and the annular plate 26 abutting against the annular wall 24 of the body 12.
A piercing knife 32 is located generally within the tubular sleeve 28.
The disposable injection tube 16 comprises a section of cylindrical tubing 36 whose end may be pushed on the tubular sleeve 28 of L-he nozzle 14.
The piStOn COMDonent 18 of the sealant applicator 10 comprises a head 40 dimensioned so that it may pass down:he cavity of the body 12, with its walls _In sealing engagement wit.n the internal circumferential wall of the body 12. The piston head 40 may be actuated bY means well known in the art.
The seallant applicator 1-0 of the present invention -0 is designed for use with her=etically sealed sachets 44 known in the art. The sachets are divided into two compartments A and B by a rupturable barrier 46 located within the sachet 44 and between the sections A and B. The separate components of a sealant i.e. the resin and the hardener, may be sealed individually and in predetermined amounts within the compartments A and B. The reaction between the resin and hardener to form the C 1: -1 expanding foam composition may be started by rupturing the frangible membrane 46 e.g. by applying pressure to one section of the sachet 44 thereby forcing the contents of that section into the other section of the sacet 44. The 1 resin and hardener may be mixed by quickly kneading the closed sachet. This blending causes the resin and hardener to react and start to expand.
The intact sachet 44. with its expanding contents, may L-hen be placed via the inlet 20 into the central cavity of the body 12. The piston head 40 is then inserted into the cavity of the body 1-2 and pushed down to exert pressure on the sachet 44, thereby moving the sachet down the cavit.y 13 to press the sachet 44 against -he head 26 of the nozzle 14. The sharp point 34 of the knife 32 protruding above the plane of the Diate 26 pierces the sachet 44. Eecause of the pressure exerted: a) by the pistcn head '0; and b) by the expanding sachet contents, the sealant is forced to pass along the outlet passage 30 of the nozzle 14, to be expelled out of the sealant applicator 10 via the disposable injection tube 16. Further movement of the piston head 40 down the cavity 13 squeezes all the sachet 44 contents out of the sealant applicator 10.
As shown in Fig. 3, after all the contents have been squeezed out of the sachet, the sachet forms a body 50 of concertinaed material locating against the nozzle head 26.
After use the piston head 40 may be retracted from cl 6 After use the piston head 40 may be retracted from the cavity of the hollow cylindrical body 12, the disposable injection tube 16 removed and discarded and the tubular body 12 inverted over a suitable waste container to discard the disposable nozzle 14 and empty sachet from the device.
Figures 4 and 5 show a second embodiment. This is in many respects similar to the first, and corresponding COMDonents bear the same reference numerals. Thus a piston 18 is displaceable in a cylinder 12 to drive a sachet 44 against cutting means 34 so that the sachet's -onten4s are expelled through a nozzle 28. However.he 28 is now externally secu. - 'or+ ed over a nozzle - ion nozzle 1 zO fast with the annular end wall 24 of the cylinder.
nside that end wall 24 there fis a domed array '_2 holding Lurality cf cutting elemenzs 45 p disposed arcund a central openinz 54. This allows very efficient evacuation of the sachet's contents. Thereafter the whole dispenser assembly is discarded. Generally, the sma11 amount of the 1 1 be a cured 1.0 sac.het's contents remaining therein wi- polyurethane:7oam which is quite inert and safe to dispose of.
-ii, C

Claims (7)

GB CLAIMS
1. A sealant applicator device comprising a pistonand-cylinder assembly wherein the cylinder has an outlet conduit characterised in that cutting means are provided projecting into the cylinder interior whereby a sachet received in the cylinder is urgeable by the piston against
2. wherein 10 cutting
3 wherein conduit nortion the cutting means.
An applicator device according to claim 1 the cutting means comprises an annular array of elements disposed around the outlet conduit.
An applicator device according to claim 2 the cylinder has an end wall through which said =eans comprises a domed extends, and the cuttlocated within the cylinder with its convex side facing away from said end wall; the domed portion having -he an opening which is aligned with:he outlet conduit; +1 cutting elements being disposed around said opening.
4. An applicator device according to claim 1 wherein the cutting element is provided by a disposable nozzle head which provides an end wall portion of the cylinder and the outlet conduit.
5. An applicator device substantially as any herein described with reference to and as illustrated in the accompanying drawings. 25
6. A method of dispensing a sealant which comprises the steps of:
a) placing a closed sachet of sealant in the C1 1 8 cylinder interior of a sealant applicator according to any preceding claim; b) urging the piston into the cylinder so that the sachet is urged against and is pierced by said cutting 5 means; and C) allowing and/or causing said sealant to leave said cylinder via the outlet conduit.
7. A method of dispensing a sealant substantially as any herein described with reference to and as 10 illustrated in the accompanying drawings.
Published 1990atThe Patent Office. State House, 66-171 High Holoorn. London WCIA 4TP. Further coplesmaybe obtalnedfrom The Patent OfficeSales Branch. St Mar7 Cray, Orpington. Kent BR5 3RD. Printed by V-Ultlpltj-x techniques ltd, St Mary Cray, Kent. Con 1/87
GB8927498A 1988-12-05 1989-12-05 Sealant applicator Expired - Lifetime GB2226855B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB888828336A GB8828336D0 (en) 1988-12-05 1988-12-05 Sealant applicator

Publications (3)

Publication Number Publication Date
GB8927498D0 GB8927498D0 (en) 1990-02-07
GB2226855A true GB2226855A (en) 1990-07-11
GB2226855B GB2226855B (en) 1992-08-26

Family

ID=10647964

Family Applications (2)

Application Number Title Priority Date Filing Date
GB888828336A Pending GB8828336D0 (en) 1988-12-05 1988-12-05 Sealant applicator
GB8927498A Expired - Lifetime GB2226855B (en) 1988-12-05 1989-12-05 Sealant applicator

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB888828336A Pending GB8828336D0 (en) 1988-12-05 1988-12-05 Sealant applicator

Country Status (2)

Country Link
EP (1) EP0377287A1 (en)
GB (2) GB8828336D0 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2432642A (en) * 2005-11-28 2007-05-30 Steve Vick Internat Ltd Closing off a conduit with an expandable foam sealant

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4301127A1 (en) * 1993-01-18 1994-07-21 Schueco Int Kg Process for mixing and injecting a two-component adhesive into a frame corner mechanically stabilized by a corner or a T-connector
GB9401439D0 (en) * 1994-01-26 1994-03-23 Ciba Geigy Ag Apparatus
US5494190A (en) * 1994-12-29 1996-02-27 Minnesota Mining And Manufacturing Company Method and combination for dispensing two part sealing material
JP3187322B2 (en) * 1996-05-27 2001-07-11 啓一 中田 Opening device and sealing material injection container
FR2761346B1 (en) * 1997-03-26 1999-06-18 Guttaterna PERFORATING MOUTHPIECE FOR DEVICES FOR EXTRUDING PASTE OR VISCOUS PRODUCTS
CN101389550B (en) 2006-02-21 2011-04-20 药物混合系统股份公司 Device for piercing film
FR2908751B1 (en) * 2006-11-20 2009-02-06 Raigi Soc Par Actions Simplifi DEVICE FOR CONDITIONING AND IMPLEMENTING IN SITU A TWO-COMPONENT RESIN
DE102007057848B4 (en) * 2007-11-29 2009-11-19 Cellpack Gmbh Multi-component cartridge and method for producing this
GB0805335D0 (en) * 2008-03-25 2008-04-30 Nuclear Decommissioning Author Sealing means

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1007773A (en) * 1960-10-03 1965-10-22 Helmut Lang
GB1118355A (en) * 1965-05-03 1968-07-03 Dow Chemical Co Improved dispenser for discharging liquid or semi-liquid material under pressure
WO1979000430A1 (en) * 1977-12-23 1979-07-12 O Nielsen A container for containing liquid substances and a method for making the same
GB1602189A (en) * 1977-12-08 1981-11-11 Easi Pesi Ltd Dispensing devices
WO1981003132A1 (en) * 1980-04-30 1981-11-12 Black & Decker Cartridge assembly
US4461454A (en) * 1982-06-01 1984-07-24 New Product, Inc. Caulking tube valve

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2198564A (en) * 1939-07-07 1940-04-23 Owens Illinois Glass Co Dispensing container
FR2500518A1 (en) * 1981-02-20 1982-08-27 Lincrusta Cartridge for applying mastic type products - has independent injection tube with pad around base fixed to top of cartridge

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1007773A (en) * 1960-10-03 1965-10-22 Helmut Lang
GB1118355A (en) * 1965-05-03 1968-07-03 Dow Chemical Co Improved dispenser for discharging liquid or semi-liquid material under pressure
GB1602189A (en) * 1977-12-08 1981-11-11 Easi Pesi Ltd Dispensing devices
WO1979000430A1 (en) * 1977-12-23 1979-07-12 O Nielsen A container for containing liquid substances and a method for making the same
WO1981003132A1 (en) * 1980-04-30 1981-11-12 Black & Decker Cartridge assembly
US4461454A (en) * 1982-06-01 1984-07-24 New Product, Inc. Caulking tube valve

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2432642A (en) * 2005-11-28 2007-05-30 Steve Vick Internat Ltd Closing off a conduit with an expandable foam sealant
GB2432642B (en) * 2005-11-28 2010-07-28 Steve Vick Internat Ltd Closing off conduits

Also Published As

Publication number Publication date
GB2226855B (en) 1992-08-26
EP0377287A1 (en) 1990-07-11
GB8828336D0 (en) 1989-01-05
GB8927498D0 (en) 1990-02-07

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PE20 Patent expired after termination of 20 years

Expiry date: 20091204