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WO1990011235A1 - Bombes aerosol - Google Patents

Bombes aerosol Download PDF

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Publication number
WO1990011235A1
WO1990011235A1 PCT/GB1990/000413 GB9000413W WO9011235A1 WO 1990011235 A1 WO1990011235 A1 WO 1990011235A1 GB 9000413 W GB9000413 W GB 9000413W WO 9011235 A1 WO9011235 A1 WO 9011235A1
Authority
WO
WIPO (PCT)
Prior art keywords
passage
dispenser according
liquid
tube
valve
Prior art date
Application number
PCT/GB1990/000413
Other languages
English (en)
Inventor
Stephen Terence Dunne
Terence Edward Weston
Original Assignee
Stephen Terence Dunne
Weston Terence E
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 GB898906736A external-priority patent/GB8906736D0/en
Priority claimed from GB898916808A external-priority patent/GB8916808D0/en
Application filed by Stephen Terence Dunne, Weston Terence E filed Critical Stephen Terence Dunne
Publication of WO1990011235A1 publication Critical patent/WO1990011235A1/fr

Links

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
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant
    • B65D83/44—Valves specially adapted for the discharge of contents; Regulating devices
    • 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 for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant
    • 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 for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant
    • B65D83/32—Dip-tubes
    • 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 for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant
    • B65D83/38—Details of the container body
    • 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 for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant
    • B65D83/60—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant with contents and propellant separated

Definitions

  • This invention concerns mass flow compensators for aerosol dispensers, particularly dispensers adapted to contain pressurised permanent gases as opposed to low boiling point chloroflurocarbons and the like.
  • Permanent gas aerosol dispensers suffer from a reduction in gas pressure as the liquid contents are dispensed. This can result in a reduction in mass flow and a deterioration of the spray characteristics during the life of the aerosol.
  • a number of regulators have been proposed to compensate for the falling pressure but most have involved moving parts such as spring loaded pistons.
  • the liquid in an aerosol dispenser the liquid is contained in an elongated chamber between a source of pressure at one end and a control valve at the other end.
  • the source of pressure is provided, more especially, by a volume of pressurized permanent gas.
  • the said one end of the chamber may be connected to a reservoir of pressurised gas or sealed to define, a container within which pressurised gas is trapped.
  • pressure loss characteristics can be created to substantially compensate for the high gas pressure at the beginning of discharge of the liquid, and the falling pressure during discharge caused by the increased volume occupied by the charge of pressurised gas as the liquid is expelled.
  • the cross-sectional shape and size may vary along the length of the chamber, as also may the surface finish.
  • the chamber may be in the form of an elongate tube whose diameter is small in relation to its length.
  • the tube may be accommodated in a relatively small canister by coiling the tube within the canister.
  • the tube may be open at the end remote from the' discharge valve and may thereby communicate with pressurised gas in a container within the canister.
  • the tube is closed at the end remote from the discharge valve and contains a charge of pressurised gas within the closed end.
  • a pressurised outer container is not required.
  • a slidable plug eg of foam may be interposed between the liquid and the gas.
  • the coiled tube is replaced by an array of passageways formed for example by a plastics moulding or extrusion to which the passageways communicate to form a continuous single (albeit tortuous) passage.
  • passageways formed for example by a plastics moulding or extrusion to which the passageways communicate to form a continuous single (albeit tortuous) passage.
  • manifold at one end which communicates with opposite ends of the single passage so formed, and which houses the discharge valve and the pressurised gas container.
  • an elongate passage is formed between two sheets of plastics material overlaid one on the other by heat welding somewhat similar to a miniature inflatable air bed.
  • the resulting structure may be folded and coiled for insertion in a canister.
  • the flow discharge valve may be of any conventional form but more preferably is of a type as described in co- pending UK Patent Application No. 8906512.2 entitled Improved Flow Discharge Valve filed on 21st March 1989.
  • an air bleed passageway may be provided to the valve either from the source of pressurised gas, or from a separate source.
  • restrictors are placed within the passage to increase pressure losses and increase the effective length of the passage, hence reducing the passage length required to achieve a given pressure drop and/or allowing a larger diameter of passage to be used.
  • the restrictor may be portions of the elongate chamber or passage of reduced cross-sectional area relative to the remainder of the passage.
  • such restrictors may, for example, be located in the connecting links between the passageways at one or both extremities of the array. However, this is by no means essential and, 'the restrictors may alternatively be provided at intermediate points along the lengths of the interconnected individual passageways.
  • the provision of restrictors is an important feature of the invention, readily enabling any required flow output characteristic to be achieved, including a substantially constant mass flow rate.
  • the restrictors may be of graded differing dimensions along the length of the passage. Thus for example, to assist in achieving a constant mass flow rate, the restrictors may be smaller (i.e. to give a larger restrictive effect) at the gas end of the passage but become progressively larger (so as to give a smaller restrictive effect) towards the exit where the spray valve and nozzle are located.
  • the restrictors only act on the liquid to be dispensed, and are only provided along that part of the length of the chamber which is to contain liquid and are not located in the region of the elongate chamber which accommodates the gas under pressure.
  • the restrictors may be located at regular intervals along the length of the passage (i.e. at a regular pitch) or at a varying pitch therealong. Variation in pitch with constant or varying size of restrictor can be used to produce any desired discharge characteristic. Generally, if the restrictors are of constant size, a wider pitch will be required near to the exit and a closer pitch remote from the exit, and the pitch may be graded along the length of the passage.
  • an aerosol dispenser of the kind in which the liquid is contained in an elongated chamber or passage between a source of pressure at one end and a control valve at the other end, and in which a number of restrictors are placed within the passage includes for each restrictor, directional flow control means so arranged as to offer a greater resistance to liquid flow in one direction along the passage than to liquid flow in the other direction along the passageway.
  • Each restrictor may be formed as a short length of conduit of reduced cross-section (i.e. of a smaller cross- sectional area than that of the passage).
  • the directional flow control means preferably comprises a one-way valve connected in parallel with or formed integrally with, its respective conduit, the arrangement being such that, as the passage is being filled with liquid, the flow of liquid through the passage will tend to unseat the valve.
  • the one-way valves operate to reduce the resistance to liquid flow along the passage by allowing liquid to by-pass the restrictors, and thus to facilitate the filling process.
  • valves remain closed, allowing the restrictors to exert the necessary resistance to liquid flow.
  • the flow control means may comprise a number of sealing members, each mounted in parallel with its respective restrictor and adapted to be moveable, by external means, from an open position, in which liquid flowing along the passage may by-pass the restrictor, to a closed position in which liquid is prevented from by ⁇ passing the restrictor.
  • Figure 1 is a perspective view of an aerosol dispenser constructed in accordance with a first ' embodiment of the invention
  • Figure 2 is a perspective view of a second embodiment
  • FIGS 3 and 4 are sectional views showing two different restrictors for use in the dispensers of Figures 1 and 2;
  • Figure 5 shows in perspective a modification of the embodiment of Figure 2 for use as a fire extinguisher
  • Figure 6 is an exploded perspective view of a third embodiment formed by an extrusion process
  • Figure 7 is a modification of the embodiment of Figure 6;
  • Figure 8(a) to 8(d) are views partly in section of another form of restrictor, and Figures 8(e) to 8(h) are similar views for a rectangular cross-section;
  • Figure 9 is perspective view of part of a tube of a dispenser suitable for use with a high viscosity product
  • Figure 10 is a sectional view of a dispenser similar to the dispenser of Figure 6 and showing an air mixing discharge valve;
  • Figure 11 is a modification of the dispenser of Figure 10;
  • Figure 12 is a side view of a dispenser similar to Figure 2 showing an air mixing discharge valve;
  • Figure 13 shows a further modification of the dispenser of Figure 10 incorporating restrictors;
  • Figures 14A and B are diagrams to assist understanding of the action of the restrictors
  • Figure 15 is a sectional side view of part of a directional flow control means for use in the dispenser
  • Figures 16 and 17 show, in sectional side view, part of an alternative form of flow control means.
  • Figure 18 shows schematically a further dispenser incorporating a gas mixing discharge valve.
  • the aerosol dispenser shown is contained in a cylindrical canister 2.
  • An elongated chamber in the form of a tube 4 contains liquid to be dispensed, and the tube is coiled around inside the canister.
  • One end 6 of the tube is closed off and is subjected to a source of gas pressure, while the other end terminates in a control or discharge valve 8, whose outlet extends as a nozzle out of the canister 2.
  • the tube 14 containing the liquid to be dispensed is coiled in a square flat canister 12.
  • the control valve 18 and push button 20 are as before, and the operation of the dispenser is as described with reference to Figure 1.
  • the tubes 4 and 14 of the dispensers shown in Figures 1 and 2 may be provided with flow restrictions to effectively increase the viscous drag of the liquid to be dispensed.
  • Figure 3 shows one restrictor 22 formed by stretching and narrowing the tube by a heating or upset forming technique.
  • the restriction is provided by mechanically pinching the tube between two halves of a casing 26 inside which are formed opposed edge projections 28. This produces a more sudden and pronounced restriction to flow of the liquid to be dispersed than the restrictor 22 of Figure 3.
  • FIG. 5 there is shown a modification of the flat canister dispenser of Figure 2 which is particularly adapted for use as a fire extinguisher.
  • a handle 30 is formed integrally in the upper side of the canister 32.
  • the push button 34 for the control valve 36 is provided in a cut-out formed in the upper side adjacent the handle, so that the button can be readily operated single handed by an operator holding the handle in one hand and pressing the bottom 34 with the thumb of the same hand.
  • the end of the tube adjacent the valve 36 may actually pass through the handle 30, in order to save space within the canister.
  • the other end of the tube is connected to a pressure gauge 38 to enable the user to check from time to time that the extinguisher is sufficiently pressurised to be fully operable.
  • FIG. 6 A somewhat different design of aerosol dispenser is shown in Figure 6.
  • the coiled tube is replaced by a main body 40 formed as a honey-comb type of extrusion or - moulding and comprising a rectangular array of passageways 42 each of generally square cross-section. Between the ends of adjacent passageways the intermediate wall is cut away to form an interconnecting notch or weir, as shown at 44.
  • the bottom end of the body 40 is sealed closed by a flat plate 46, while the top end is similarly closed by a plate or gasket 48 formed with two square apertures 50 forming the entrance and exit to the body.
  • a manifold head 52 is arranged to sealingly clamp the gasket 48 against the top of the body 40. In this manner there is provided a single zig-zag path of interconnecting or looped passageways, the directions of some of the loops of the path being indicated by the arrows 54.
  • a gas filler valve 56 is mounted at one side of the head 52 to communicate via the entrance aperture 50 with the passageway at the upstream end of the zig-zag path remote from the discharge valve 58, mounted at the opposite side of the head.
  • the valve 58 communicates via the exit aperture 50 with the downstream end of the path.
  • a flow restrictor (not shown, but similar to those described above) may be fitted at the ends of one or more passageways of the body 40.
  • the dispenser shown in Figure 7 is a modification of the dispenser of Figure 6, being of a reduced size and an asymmetrical shape particularly suited to pharmacy use.
  • the body 60 is again formed as an extrusion, forming passageways whose ends are suitably notched as shown at 62.
  • the bottom of the body 60 is closed by a plate 64 (shown lowered), while a manifold 66 closes the top of the body.
  • the discharge button 68 is inset in the manifold and is separate from the spray nozzle 70.
  • Figures 8(a) to (h) show a variety of methods of forming restrictions in tubes.
  • Figures 8(a) and (b) show a tube 72 of circular section formed about a 180° bend 74 into a U-shape.
  • the bend 74 is stretched and narrowed, by known heat-forming means, so that is has a considerably smaller circular section, as shown enlarged in Figure 8(c).
  • a longitudinal rib 76 may be provided on the inner surface at the outside of the bend, as shown in Figure 8(d).
  • the rib 76 may be integrally formed as an extrusion at least along that portion of the tube which incorporates the restriction.
  • Figures 8(e) to 8(h) show views corresponding to Figures 8(a) to 8(d) of a tube 72' of rectangular section.
  • the bend 74' remains of the same width, and is only narrowed in a direction radial with respect to the centre of the bend.
  • FIG. 9 there is shown part of a coiled tube 78 of relatively large circular cross-section, as used for example in the dispenser of Figure 1.
  • the tube carries a liquid 80 to be dispensed, such as a thick foam or gel, which could readily become mixed with the propellant gas 82.
  • a foam plug 84 Placed between the ' gas and the end of the liquid is a foam plug 84 of a diameter corresponding approximately to the inside diameter of the tube 78. The plug 84 can thus freely slide through the tube thereby to prevent mixing of the gas and liquid.
  • FIG 10 shows a modification of the dispenser of Figure 6.
  • An air compartment 86 is provided in the upper manifold 88, and this can be pressurised via filler valve 89.
  • the upstream end of the path of passageways 90 is connected by an opening 92 to the compartment 86 to permit expulsion of the liquid contained in the passageways.
  • a discharge valve 94 positioned at the top of the manifold on the side opposite the filler valve 89, incorporates a liquid/gas mixing region and a choke flow orifice as disclosed in the above mentioned UK Application No. 8906512.2.
  • a small opening 96 is formed from the air compartment to provide the necessary air for mixing in the valve 94.
  • the size of the air compartment 86 and the pressure to which it is filled is arranged to be sufficient both to supply air to the valve 94 and to expel the liquid contained in the passageways 90.
  • FIG 11 The arrangement in Figure 11 is similar to Figure 10 except that the manifold 88' is divided by a thicker wall 98 to form an air compartment 86" solely for expelling the liquid, and a separate compartment 100 for feeding gas or air to the discharge valve 94'.
  • the compartment 100 is pressurised from a separate filler valve 102.
  • Figure 12 shows a modification of the flat canister dispenser of Figure 2 which again incorporates a discharge valve 104 with a liquid/gas mixing region.
  • the liquid 106 contained in the coiled tube 108 is adapted to be converted into a foam in the valve mixing region.
  • the upstream end of the tube 108 contains a propellant gas 110, and a narrow gas bleed tube 112 connects the gas to the mixing region of the valve 104.
  • the section of the tube containing the gas may be divided by a fixed plug 114 into a compartment for ' the air bleed function, and a separate compartment for expelling the foamable liquid 106, i.e. as in Figure 11. In this case separate filler valves (not shown) are required for pressurising the two gas compartments.
  • Figures 14A and B assist in understanding the action of the restrictors.
  • the elongate chamber in the dispenser is, for simplicity, shown as a long straight tube 130.
  • Restrictors 132 instanced as fourteen in number, are provided along the length of the part of the chamber passageway which, when the dispenser is full, is occupied by the liquid 134 to be dispensed. Restrictors are not provided in the original gas volume 136 where, initially, the gas may be under a presure of 9 bar, for example.
  • Figure 14B shows the tube 130 in the partially used dispenser, where the liquid/gas interface is indicated at 138, and the pressure of the gas 136 has fallen to 4.5 bar. However, now only seven restrictors 132 are effective to retard the liquid 134.
  • the restrictors 132 shown in Figures 14A and B are all of the same dimensions and are. at a uniform pitch. However, variations of dimensions and pitch may be employed not only to achieve a required law of output flow rate, but also to take into account flow rate characteristic effects produced by the overall shape and sizing of the elongate chamber itself, including any sharp bends therein, and its inherent frictional action on the liquid.
  • a passageway 201 houses a one ⁇ way valve 202 which includes an annular valve chamber 203 formed integrally with the walls of the passageway 201.
  • the chamber 203 includes two openings 204 and 205 which are situated one at either end of the chamber 203, and the chamber is so tapered from its middle region to each opening that each opening is of a smaller diameter than those of the portion of "the chamber between the openings 204 and 205.
  • a washer 206 is mounted in the passageway 201 adjacent the opening 205, and has a central bore of a slightly smaller diameter than that of the opening 205.
  • the washer 206 is so positioned that its central bore is concentric with the opening 205, and the washer therefore defines a shoulder 207 which projects from the periphery of the opening 205.
  • a compression spring 208 is mounted at one end region on the washer 206, and at the other end region on a sealing member 209 which is, in turn, moveably mounted within the chamber 203.
  • the biasing of the spring 208 urges the sealing member 209 towards a valve seat formed as a shoulder 210 adjacent the periphery of the opening 204.
  • the sealing member 209 includes a conduit 211 which is formed as a central through - bore, and with the valve 202 in a closed position, i.e. with the sealing member 209 seated against the shoulder 210, the conduit 211 acts as a restrictor for liquid flowing along the passageway 201.
  • the sealing member is so sized in relation to the chamber 203 that, with the sealing member 209 unseated, the opening 204 can communicate with the opening 205 via a channel found between the sealing member 209 and the chamber walls 203.
  • liquid is introduced into the passageway 201 along the direction indicated by the arrow A, and as this happens the liquid exerts a force on the sealing member 209 which opposes the biasing of the spring 208.
  • the sealing member 209 will be unseated, and the valve 202 opened.
  • Liquid will then be able to travel from the opening 204 to the opening 205 either through the conduit 211 or between the sealing member 209 and the walls of the chamber 203.
  • the liquid will thus encounter less resistance to flow when the valve is opened than it would if the only way of travelling between the openings 204 and 205 were through the conduit 211.
  • valve 202 offers greater resistance to liquid travelling in the direction of the arrow B than it does to liquid travelling in the opposite direction, since in the former case the liquid must pass through the conduit 211 in order to travel between the openings 204 and 205.
  • each passageway section is connected at its top end region to the adjacent section closer to the control valve and (other than the section furthest away from the control valve, not shown), at its opposite end to the other adjacent section, i.e. as in the dispensers of Figures 6, 10 and 13.
  • FIGS 16 and 17 which show the top end connection between the passage sections 221 and 222, these sections are separated by a common wall 223 in which a notch 224 is formed.
  • a collapsable dome 225 is mounted on top of the passageway sections 221 and 222 in such a way as to define an interconnecting chamber 226 between the two passageway sections.
  • the other inter-passageway section connections in the dispenser are formed in a similar way.
  • FIG. 17 schematically shows a dispenser similar to the arrangement described with reference to Figure 11 , but with the addition of restrictors.
  • the dispenser comprises a discharge valve 302 incorporating a liquid/gas mixing region and a choke flow orifice as described in the above mentioned UK Application No. 8906512.2.
  • Liquid to be dispensed is fed to the valve 302 from a tortuous tube 304, whose remote opposite end 306 is closed so as to provide a reservoir 308 of gas under pressure.
  • Located in the tube 304 are a number of flow restrictors 314 of which only four are shown.
  • a gas line 310 supplied by a further reservoir 312 of gas under pressure, for feeding gas to the mixing region of the valve.
  • the valve 302 is operated by depressing a spray nozzle 316, causing liquid to be fed from the tube 304 and to be mixed in the mixing region with the gas from the reservoir 312, and then to exit as a fine spray from the nozzle 316.
  • the number of restrictors 314 acting against the flow liquid effectively decreases thereby maintaining the mass flow of liquid being dispensed substantially constant, despite the pressure reduction of the gas in the reservoir 308 as its volume expands.
  • the separate reservoir 312 is arranged to be of a sufficient size and filled with gas at a sufficient pressure so that there is only a minimal reduction in pressure at the valve 302 during dispensing of the liquid. Thus it is ensured that the good spraying characteristics of the valve 302 are maintained throughout the dispensing life of the unit.

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

Abstract

Une bombe aérosol comprend une boîte métallique (2) comportant un passage allongé se présentant sous la forme d'un tube enroulé à l'intérieur de ladite boîte métallique, un clapet de décharge (8) étant connecté à une extrémité dudit tube, tandis que l'autre extrémité (6) est obturée pour contenir une source de pression de gaz. Des moyens de résistance se présentant sous la forme de réducteurs (22), sont formés dans ledit tube. Le passage peut alternativement prendre la forme d'un réseau de passage relié (90) formé par une extrusion en plastique, un distributeur supérieur (88) logeant un clapet de décharge (94) ainsi que le gaz sous pression.
PCT/GB1990/000413 1989-03-23 1990-03-23 Bombes aerosol WO1990011235A1 (fr)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
GB8906736.7 1989-03-23
GB898906736A GB8906736D0 (en) 1989-03-23 1989-03-23 Aerosol mass flow compensator
GB898912583A GB8912583D0 (en) 1989-03-23 1989-06-01 Aerosol mass flow compensator
GB8912583.5 1989-06-01
GB8914819.1 1989-06-28
GB898914819A GB8914819D0 (en) 1989-03-23 1989-06-28 Aerosol mass flow compensator
GB898916808A GB8916808D0 (en) 1989-07-22 1989-07-22 Modifications of aerosol mass flow compensators
GB8916808.2 1989-07-22

Publications (1)

Publication Number Publication Date
WO1990011235A1 true WO1990011235A1 (fr) 1990-10-04

Family

ID=27450298

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1990/000413 WO1990011235A1 (fr) 1989-03-23 1990-03-23 Bombes aerosol

Country Status (2)

Country Link
AU (1) AU5275890A (fr)
WO (1) WO1990011235A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5839383A (en) * 1995-10-30 1998-11-24 Enron Lng Development Corp. Ship based gas transport system
DE102005042250A1 (de) * 2005-09-05 2007-03-08 Atesum Ag Feuerlöscher

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2693391A (en) * 1951-02-21 1954-11-02 David O Manseau Spray bomb
US3327907A (en) * 1965-06-09 1967-06-27 Meyers Frederick Charles Reinforced plastic containers for pressurized products
FR2117233A5 (fr) * 1970-12-02 1972-07-21 Alusuisse
US3854636A (en) * 1973-01-15 1974-12-17 Johnson & Son Inc S C Aerosol valve for low delivery rate
FR2311723A1 (fr) * 1975-05-20 1976-12-17 Oreal Recipient pour le conditionnement et la distribution d'au moins un produit
EP0234797A1 (fr) * 1986-02-11 1987-09-02 Bespak plc Récipients pour distribuer du gaz sous pression
EP0346289A2 (fr) * 1988-06-10 1989-12-13 TUBETTIFICIO EUROPEO S.p.A. Récipient aérosol

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2693391A (en) * 1951-02-21 1954-11-02 David O Manseau Spray bomb
US3327907A (en) * 1965-06-09 1967-06-27 Meyers Frederick Charles Reinforced plastic containers for pressurized products
FR2117233A5 (fr) * 1970-12-02 1972-07-21 Alusuisse
US3854636A (en) * 1973-01-15 1974-12-17 Johnson & Son Inc S C Aerosol valve for low delivery rate
FR2311723A1 (fr) * 1975-05-20 1976-12-17 Oreal Recipient pour le conditionnement et la distribution d'au moins un produit
EP0234797A1 (fr) * 1986-02-11 1987-09-02 Bespak plc Récipients pour distribuer du gaz sous pression
EP0346289A2 (fr) * 1988-06-10 1989-12-13 TUBETTIFICIO EUROPEO S.p.A. Récipient aérosol

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5839383A (en) * 1995-10-30 1998-11-24 Enron Lng Development Corp. Ship based gas transport system
US6003460A (en) * 1995-10-30 1999-12-21 Enron Lng Dev Corp Ship based gas transport system
DE102005042250A1 (de) * 2005-09-05 2007-03-08 Atesum Ag Feuerlöscher

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Publication number Publication date
AU5275890A (en) 1990-10-22

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