US3669313A - Aerosol dispenser having flexible collapsible product containing sac - Google Patents

Aerosol dispenser having flexible collapsible product containing sac Download PDF

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Publication number
US3669313A
US3669313A US112055A US3669313DA US3669313A US 3669313 A US3669313 A US 3669313A US 112055 A US112055 A US 112055A US 3669313D A US3669313D A US 3669313DA US 3669313 A US3669313 A US 3669313A
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United States
Prior art keywords
sac
propellant
valve means
outer container
dispensed
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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.)
Expired - Lifetime
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US112055A
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English (en)
Inventor
Jean Marand
Felix Rousselot
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.)
Novartis Corp
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Ciba Geigy Corp
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Publication date
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/60—Contents and propellant separated

Definitions

  • This invention relates to an improved aerosol dispenser for spraying a fluid product, generally liquid, by aspirating it with a liquefied gas propellant which is released in the gas phase as a valve means is actuated by the user of the aerosol dispenser.
  • this invention relates to an aerosol dispenser of the type in which the material to be sprayed is held in a product container different from the cartridge holding the propellant, generally consisting of a gas liquefied under pressure so that the material and the propellant are kept separate from each other in the dispenser.
  • Such aerosol dispensers differ from those having only a single container with a single liquid therein, which is a mixture of the liquid to be sprayed and the propellant, which is partly in a gas phase above the liquid.
  • Such dispensers require a rigid and strong container to hold the liquid and gas phases under pressure.
  • aerosol dispensers are known in which the product to be sprayed is a liquid contained in a flexible and collapsible bladder-like sac.
  • This sac is housed in a strong, rigid container holding the propellant under pressure in such a way that the propellent exerts compression on the sac, yet it is not placed in direct contact with the liquid to be sprayed, which is desirable in many instances.
  • the pressure of the gas around the flexible sac tends to compress the latter and to expel the liquid it contains as soon as a valve in the rigid container is opened.
  • the sac is emptied by pressure of the gas around it.
  • the invention in the present case relates to dispensers where the product to be sprayed and the propellant are kept separate and in which there is a new application of flexible sacs for storage of the product to be sprayed.
  • the aerosol dispenser includes an outer container having a valve means thereon and inside of which container are (a) a cartridge containing a propellant under pressure, and (b) a tight flexible sac having means placing the interior of the sac in communication with the valve means, the sac containing the product, generally liquid, to be dispensed.
  • the sac is emptied by aspiration of the contents therefrom when the propellant is released through the valve means.
  • the flexible sac has the propellant cartridge within it, and according to another embodiment, it constitutes an annular casing which surrounds at least part of the surface of the propellant cartridge.
  • the annular casing formed by the flexible sac is preferably wrapped in a spiral around the propellant cartridge.
  • the invention provides various means for mounting the flexible sac in the dispenser.
  • it can be mounted in liquid tight engagement with the valve body of the valve means, or can be secured tightly around the dip tube that feeds the spray nozzle.
  • the flexible sac is connected to the valve means by a coupling which is connected in a liquid tight manner to said sac.
  • valve means only has to handle a dual obturation, i.e. of the propellant and of the product, if provision is made so that the outer container holding the sac has apertures communicating with the outside atmosphere. This results in an appreciable economy.
  • the invention also provides means which makes it possible to dispense gas-phase propellant no matter how the dispenser is pointed, so that it can be used upside down or in any other position.
  • FIG. 1 is an axial section of a first embodiment of the dispenser according to the invention
  • FIG. 2 is a similar view of a second embodiment
  • FIG. 3 is a similar view of a third embodiment
  • FIG. 4 is a section of the upper part of the dispenser taken along IV-IV of FIG. 3;
  • FIG. 5 is a perspective view of a coupling forming part of the dispenser of FIG. 3;
  • FIGS. 6 and 7 are partial elevational views of the outside of difierent forms of the lower end of the dip tube for the propellant
  • FIG. 8 is a partial axial sectional view of another embodiment of the lower end of the dip tube.
  • FIG. 9 is a corresponding plan view taken along line IX-IX of FIG. 8.
  • FIG. I The particular embodiment of the dispenser according to the invention as shown in FIG. I is designed for spraying a product in liquid fonn.
  • This dispenser has an outer container 1 made of plastic or metal which has a valve means 2 mounted on the top thereof.
  • the valve means includes a cap 3 mounted on upper edge 4 of container 1.
  • the cap 3 has an annular body 5 depending therefrom which has mounted therein a flexible annular gasket 6 just below a central opening in cap 3.
  • a truncated cone shaped retaining ring 9, held between cartridge 7 and body 5, retains a high pressure annular gasket 11 provided for obturating the flow of the propellant.
  • stem 12 Slidably mounted in a bore along the axis of valve means 2 is a hollow stem 12 which has an enlarged portion 13 about in the middle thereof which cooperates with gasket 6 to form a low pressure obturator for the liquid product to be dispensed.
  • stem 12 has a second enlarged portion 14 at the lower end thereof which cooperates with gasket 11 to form a high pressure obturator.
  • An annular chamber 15 is provided in body 5, into which dip tube 16 opens, and in which enlarged portion 13 moves up and down.
  • the upper end of stem 12 projects through the opening in cap 3 and has an annular tube 17 therearound which depends from pushbutton l9.
  • Annular tube 17 opens into a space around nozzle 18 housed in pushbutton 19.
  • the hollow center 21 of stem 12 conducts propellant to the rear end of nozzle 18 from radial openings 20 normally closed by gasket 11.
  • This valve means is a type which itself is known and is not part of this invention. I
  • the liquid product to be sprayed is contained in a liquid tight flexible sac 22 which is placed in container 1.
  • Flexible sac 22 is preferably a thin walled type and has great flexibility. This sac can be made of one of the following products;
  • polyethylene either extruded, blown directly in its final shape, or obtained by sealing a film or sheath into the proper form, if the product is an aqueous or water-alcohol liquid product.
  • Polyethylene has excellent impermeability with respect to water and alcohols;
  • compound or laminated materials e.g. polyethyleneregenerated cellulose, polyethylene-aluminum, polyethylene-polyesters, etc.
  • compound or laminated materials e.g. polyethyleneregenerated cellulose, polyethylene-aluminum, polyethylene-polyesters, etc.
  • special uses such as when solvents are involved for which no single plastic material is suitable, or for very good impenneability.
  • the very broad range of flexible material presently available on the market makes it possible to find satisfactory solutions for a very large number of problems.
  • sac 22 completely encloses inner propellant cartridge 7.
  • Said sac 22 has, around its opening, a reinforcing ring 23 which is attached in a liquid tight manner, for example by welding, onto the annular body 5 of valve means 2.
  • Sac 22 is filled with liquid 24 to be dispensed, said filling being performed in such a way as to avoid introducing air.
  • advantageous use can be made of a device of the type described in copending application Ser. No. 764,1 l filed on Oct. 1, 1968 and entitled: A Device for the Filling of Dispensers of the Aerosol-Type Having a Separate Self-Contained Propulsion Unit. This device makes it possible to introduce the propellant and the product to be dispensed into the respective containers at the same time.
  • sac 22 is stretched by the weight of liquid 24 which it contains and is suspended from ring 23.
  • the bottom of container 1 can be omitted.
  • the bottom simply consists of a cross-piece 25 having large openings 26 between its parts.
  • Slightly flexible dip tube 16 extends into the interior of sac 22.
  • the dispenser can also have a removable cap 27 which protects pushbutton 19.
  • Pushing down on pushbutton 19 causes stem 12 to slide toward propellant cartridge 7, which allows the propellant to escape through radial openings 20, hollow center 21 and the nozzle 18, and the low pressure in the nozzle aspirates liquid 24 through tube 16 into chamber 15, tube 17 and through radial passages into nozzle 18 from which it is sprayed.
  • FIGS. 2 or 3 If there is any danger of harmful interactions between liquid 24 and the material of propellant cartridge 7, for example, if the liquid 24 is aqueous and the cartridge 'is metal, the embodiments shown in FIGS. 2 or 3 can be used. Provision is made in these embodiments for a complete separation between liquid 24 and the wall of propellant cartridge 7.
  • sac 22a has no shape of its own. It has only a narrow outlet opening equipped with a ring 31,.the diameter of which is such that it can be fitted tightly around dip, tube 16. Ring 31 is then welded or cemented to said tube.
  • sac 22a is placed in container 1, it is wound around propellant cartridge 7 and surrounds it while contacting only part of its surface.
  • containerl has a solid bottom 32, whereas cover 3 has apertures 33 therein to permit air to enter the container 1.
  • perforations 35 are provided spaced at intervals along the length of said clip tube.
  • a flexible sac 22c for the liquid product which sac extends annularly around the propellant cartridge 7 and body with the opposite ends of the sac, in the circumferential direction, being adjacent each other.
  • sac 220 has an outer wall 36 and an inner wall 37 joined together along annular junction strip 38.
  • these walls are made of a single sheet suitably folded back and cemented or welded.
  • Sac 22a has thin parts 39a and 39b which overlap. Sac 22a is connected with annular chamber in valve means 2 through coupling 41 shown in FIG. 5.
  • the coupling 41 has a flange 42 having radial grooves 43 in the face thereof, and a tubular body 44 extending rearwardly therefrom. Said coupling 41 is inserted in sac 22a in such a way that inner wall 37 is wedged between flange 42 and a separate ring 45 slipped around tubular body 44. Body 44 is then pushed into a channel provided for this purpose in body 5, and emerges into chamber 15. The lower part of sac 22a rests on bottom 32 of container 1.
  • flange 42 can be cemented or welded by heat, high frequency or ultrasonic welding to wall 37 and the assembly will consist of parts 41, 45 and 5.
  • sac 22a flattens out and walls 36 and 37 flatten against each other.
  • surface channels 43 will allow the liquid to pass toward tubular body 44 so that continuity of operation is assured.
  • propellant cartridge 7 has means therein which permits dispensing of gaseous propellant in all positions of the dispenser.
  • inset plug 46 which has a chamber 47 therein into which enlarged portion 14 can move.
  • Chamber 47 is connected to a tube 48 which is roughly equal in length to half the axial dimension of propellant cartridge 7.
  • the first means shown in FIGS. 6 and 7, is a modified end of dip tube 48.
  • a partition 61 closes the open end of tube 48, and in the vicinity of partitions 61 are some rectangular slits 62 (FIG. 6) or circular openings 63 (FIG. 7). Of course, these openings must be located above the level of the plane that separates propellant cartridge 7 into two equal volumes.
  • FIGS. 8 and 9 Another means is shown in FIGS. 8 and 9.
  • the end of tube 48 has two spaced parallel disks 64 and 65 mounted at the ends of radial partitions 66. This forms a dual cap that prevents drops of propellant running along tube 48 from flowing into the inlet opening. The same is true of drops which fall toward the end of the tube from the bottom of the propellant cartridge 7.
  • the dispenser of the present invention has the following advantages.
  • the container can be made of inexpensive and permeable plastic materials,
  • polyethylene or polystyrene such as polyethylene or polystyrene. It can even be made of metal, wood, or cardboard without any limitation as to material or shape, other than that the material be sufficiently strong and rigid to hold the sac.
  • the invention makes it possible to prevent the risks of degradation of the product to be sprayed due to contact with the air.
  • Such degradation can, for instance, consist of the formation of a film on paint or glue or the spoiling of the fragrance of a perfumed product.
  • the dangers of contamination by bacteria or the dangers of oxidation and degradation of food products in contact with the air can be prevented completely.
  • connection between the valve means and the outer container no longer has to be tight. Fastening by means of tight cementation or welding can, therefore, be replaced by screwing or by means of catches, which are more simple to manufacture and assemble. Since the outer container becomes a mere support, it can be made of any material, metal, plastic, glass, or even wood or cardboard, and be given any shape desired.
  • FIGS. 3-9 modification of the dispenser can be used in any position, right side up as well as upside down, or laid down horizontally. This is useful for a great number of products such as paints, waxes, body deodorants, etc.
  • the propellant cartridge is at the center along the axis of the dispenser, but obviously it can be placed in a position away from the center; for example side by side with the flexible sac containing the product to be sprayed, if it is not desired that the dispenser have a generally spiral form, but, for example a flat shape, since it is easier to make a sac in such a shape.
  • the propellant cartridge can be placed in a horizontal position or else above or below the flexible sac.
  • the connections between the flexible sac and the valve means, as well as between the propellant cartridge and the valve means can be made by means of tubes of suitable length which may or may not be flexible.
  • the dispenser can be equipped with a valve in which the high pressure obturator and low pressure obturator are integrated into the same body, as shown in the drawings.
  • a mechanical assembly could also be made with a high pressure obturator and a low pressure obturator capable of operating independently of each other.
  • two or more flexible sacs could be used, each containing a difierent product which it is desirable not to mix before use, and which will not be mixed until they are sprayed by simultaneous aspiration by the propellant flowing through a nozzle.
  • An aerosol dispenser of the type in which the propellant and the product to be dispensed are kept separate until dispensed said dispenser comprising an outer container, a valve means on said outer container, a propellant cartridge in said outer container coupled to said valve means, and at least one fluid tight flexible sac in said outer container containing the product to be dispensed in a fluid condition extending annularly around said propellant cartridge with the opposite ends of the sac, in the circumferential direction, being overlapped and the sac covering at least a part of said propellant cartridge, and means coupling said sac to said valve means for aspirating the contents of the sac when the valve means is opened to allow propellant to flow from said propellant cartridge.
  • An aerosol dispenser of the type in which the propellant and the product to be dispensed are kept separate until dispensed comprising an outer container, a valve means on said outer container, a propellant cartridge in said outer container coupled to said valve means, and at least one fluid tight flexible sac in said outer container containing the product to be dispensed in a fluid condition, said sac being wound in a spiral around said propellant cartridge, and means coupling said sac to said valve means for aspirating the contents of the sac when the valve means is opened to allow propellant to flow from said propellant cartridge.
  • An aerosol dispenser of the type in which the propellant and the product to be dispensed are kept separate until dispensed comprising an outer container, a valve means on said outer container, a propellant cartridge in said outer container coupled to said valve means, and at least one fluid tight flexible sac in said outer container containing the product to be dispensed in a fluid condition, said propellant cartridge being contained within said flexible sac and depending from said valve means, and means coupling said sac in fluid tight relationship to said valve means for aspirating the contents of the sac when the valve means is opened to allow propellant to flow from said propellant cartridge.

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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)
  • Nozzles (AREA)
  • Catching Or Destruction (AREA)
  • Packages (AREA)
US112055A 1967-10-11 1971-02-02 Aerosol dispenser having flexible collapsible product containing sac Expired - Lifetime US3669313A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR124018 1967-10-11

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US3669313A true US3669313A (en) 1972-06-13

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Country Status (5)

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US (1) US3669313A (fr)
JP (1) JPS4844135B1 (fr)
CH (1) CH507851A (fr)
FR (1) FR1582759A (fr)
GB (1) GB1241333A (fr)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4441632A (en) * 1981-12-03 1984-04-10 Stoody William R Soft shell aerosol dispenser unit
US4458830A (en) * 1981-05-18 1984-07-10 Werding Winfried J Appliance for discharging a non-compressible liquid, creamy or pasty product under pressure
US4756347A (en) * 1985-11-19 1988-07-12 Jopado Baderi Filling and dispensing valve, adapter and package
US4909289A (en) * 1987-07-02 1990-03-20 Jopado Baderi Filling and dispensing valve with drop-away valve member
US5797520A (en) * 1996-09-24 1998-08-25 Northrop Grumman Corporation Metering system and method for use with fluids having a high solid content
US6439430B1 (en) 2000-09-22 2002-08-27 Summit Packaging Systems, Inc. Collapsible bag, aerosol container incorporating same and method of assembling aerosol container
US20030024953A1 (en) * 2001-08-04 2003-02-06 Hans Peter Lilienthal Valve arrangement for flowable substances to be discharged from a container by a fluid propellant
US20040084479A1 (en) * 2002-11-04 2004-05-06 Domoy Brett C. Valve
US20040195277A1 (en) * 1999-05-14 2004-10-07 Spraytex Inc. Multiple side-feeding aerosol valve assembly
US20060086753A1 (en) * 2004-10-21 2006-04-27 Newton John R Dispensing system
WO2006058433A1 (fr) * 2004-12-03 2006-06-08 Multi-Vet Ltd. Système d’administration de fluide utilisé pour administrer une substance active sous forme d’aérosol
US20060249147A1 (en) * 2005-04-08 2006-11-09 Multi-Vet Ltd. Aerosol dispenser
US20070241133A1 (en) * 2006-04-17 2007-10-18 The Procter & Gamble Company Container visible package
US20070241131A1 (en) * 2006-04-17 2007-10-18 The Procter & Gamble Company Preferentially expandable/collapsable container and package therefor
US20070241132A1 (en) * 2006-04-17 2007-10-18 The Procter & Gamble Company Pressurized package
US10421086B1 (en) * 2018-06-19 2019-09-24 Christine Kuligowski Reusable dry erase spray paint can
AT523782A1 (de) * 2020-04-15 2021-11-15 Klein Christoph Inhalationsvorrichtung
US11846919B2 (en) 2013-03-15 2023-12-19 Vapor Communications, Inc. Systems, methods and articles to provide olfactory sensations

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5037236U (fr) * 1973-08-01 1975-04-18
JPS55121552U (fr) * 1979-02-20 1980-08-28

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3257036A (en) * 1963-05-06 1966-06-21 Leeds Pressure discharge container
US3270920A (en) * 1964-12-03 1966-09-06 Charles G Nessler Apparatus for pressure dispensing liquids
US3289949A (en) * 1964-07-09 1966-12-06 Geigy Chem Corp Pushbutton dispenser for products in the fluid state
US3416709A (en) * 1966-04-11 1968-12-17 Spray Tak Inc Apparatus for applying a plurality of fluid materials
US3417901A (en) * 1967-07-06 1968-12-24 Charles L. Sands Reusable pressurized dispensing device
US3451596A (en) * 1966-11-28 1969-06-24 Geigy Chem Corp Integral plug valve assembly for dispenser of products in the fluid state

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3257036A (en) * 1963-05-06 1966-06-21 Leeds Pressure discharge container
US3289949A (en) * 1964-07-09 1966-12-06 Geigy Chem Corp Pushbutton dispenser for products in the fluid state
US3270920A (en) * 1964-12-03 1966-09-06 Charles G Nessler Apparatus for pressure dispensing liquids
US3416709A (en) * 1966-04-11 1968-12-17 Spray Tak Inc Apparatus for applying a plurality of fluid materials
US3451596A (en) * 1966-11-28 1969-06-24 Geigy Chem Corp Integral plug valve assembly for dispenser of products in the fluid state
US3417901A (en) * 1967-07-06 1968-12-24 Charles L. Sands Reusable pressurized dispensing device

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4458830A (en) * 1981-05-18 1984-07-10 Werding Winfried J Appliance for discharging a non-compressible liquid, creamy or pasty product under pressure
US4441632A (en) * 1981-12-03 1984-04-10 Stoody William R Soft shell aerosol dispenser unit
US4756347A (en) * 1985-11-19 1988-07-12 Jopado Baderi Filling and dispensing valve, adapter and package
US4909289A (en) * 1987-07-02 1990-03-20 Jopado Baderi Filling and dispensing valve with drop-away valve member
US5797520A (en) * 1996-09-24 1998-08-25 Northrop Grumman Corporation Metering system and method for use with fluids having a high solid content
US7059497B2 (en) * 1999-05-14 2006-06-13 Spraytex, Inc. Multiple side-feeding aerosol valve assembly
US20040195277A1 (en) * 1999-05-14 2004-10-07 Spraytex Inc. Multiple side-feeding aerosol valve assembly
US6439430B1 (en) 2000-09-22 2002-08-27 Summit Packaging Systems, Inc. Collapsible bag, aerosol container incorporating same and method of assembling aerosol container
US20030024953A1 (en) * 2001-08-04 2003-02-06 Hans Peter Lilienthal Valve arrangement for flowable substances to be discharged from a container by a fluid propellant
US20040084479A1 (en) * 2002-11-04 2004-05-06 Domoy Brett C. Valve
US7451895B2 (en) * 2004-10-21 2008-11-18 Global Agricultural Technology And Engineering, Llc Dispensing system
US20060086753A1 (en) * 2004-10-21 2006-04-27 Newton John R Dispensing system
US20080001002A1 (en) * 2004-12-03 2008-01-03 Mark Garon Fluid delivery system for dispensing an active substance in spray form
WO2006058433A1 (fr) * 2004-12-03 2006-06-08 Multi-Vet Ltd. Système d’administration de fluide utilisé pour administrer une substance active sous forme d’aérosol
US20060249147A1 (en) * 2005-04-08 2006-11-09 Multi-Vet Ltd. Aerosol dispenser
US20070241131A1 (en) * 2006-04-17 2007-10-18 The Procter & Gamble Company Preferentially expandable/collapsable container and package therefor
WO2007119222A1 (fr) * 2006-04-17 2007-10-25 The Procter & Gamble Company Emballage permettant de voir un récipient
US20070241132A1 (en) * 2006-04-17 2007-10-18 The Procter & Gamble Company Pressurized package
US20070241133A1 (en) * 2006-04-17 2007-10-18 The Procter & Gamble Company Container visible package
US20100200612A1 (en) * 2006-04-17 2010-08-12 Scott Edward Smith Pressurized package
US20100264164A1 (en) * 2006-04-17 2010-10-21 Scott Edward Smith Container visible package
US8074847B2 (en) 2006-04-17 2011-12-13 The Procter & Gamble Company Pressurized package
US11846919B2 (en) 2013-03-15 2023-12-19 Vapor Communications, Inc. Systems, methods and articles to provide olfactory sensations
US10421086B1 (en) * 2018-06-19 2019-09-24 Christine Kuligowski Reusable dry erase spray paint can
AT523782A1 (de) * 2020-04-15 2021-11-15 Klein Christoph Inhalationsvorrichtung

Also Published As

Publication number Publication date
JPS4844135B1 (fr) 1973-12-22
GB1241333A (en) 1971-08-04
CH507851A (fr) 1971-05-31
FR1582759A (fr) 1969-10-10
DE1802333A1 (de) 1969-05-14

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