US3702669A - Aerosol container - Google Patents

Aerosol container Download PDF

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Publication number
US3702669A
US3702669A US8847A US3702669DA US3702669A US 3702669 A US3702669 A US 3702669A US 8847 A US8847 A US 8847A US 3702669D A US3702669D A US 3702669DA US 3702669 A US3702669 A US 3702669A
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US
United States
Prior art keywords
container
valve
disc
aerosol
plastic
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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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US8847A
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English (en)
Inventor
Ronald F Ewald
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Individual
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Individual
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Publication of US3702669A publication Critical patent/US3702669A/en
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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
    • 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 relates to an aerosol container and more particularly to a unique structure for an aerosol container and valve wherein the product is isolated from all metal surfaces.
  • An aerosol packaged product should also have a good shelf life. This requires not only good seals but also chemical inertness or isolation of the product, propellant, solvent, if any, and container. Many products unfortunately react chemically with the propellant, the container, or the components of the valve. This is particularly troublesome where the product is food. Indeed, only limited usage of aerosols has occurred in the food industry due to the tendency of many foods to take on an unpleasant taste because of admixture with the propellant or reaction with the metal usually used in aerosol containers. Attempts have been made to prevent reaction with the metal of the container by spraying a plastic film on the inside of the container. Unfortunately, such film usually has numerous pin holes which allows eventual interaction between the food and the metal. Isolation of the food from the propellant has also been tried by use of separate concentric compartments, but such a structure is usually too expensive.
  • An aerosol container should also be attractive. Many of the products dispensed from aerosol containers compete in very competitive markets. In many cases, success or failure depends upon consumer appeal for the ease of dispensing or the package.
  • Another object is to provide an aerosol container of the above character wherein there is no contact between the product and the metal surfaces of the container.
  • Still another object is to provide an aerosol container with safety features incorporated therein.
  • a further object is to provide an aerosol container wherein the propellant may be isolated from the product.
  • a still further object is to provide an aerosol container which is uniquely decorative.
  • Another object is to provide an aerosol container wherein the valve body uniquely comprises a portion of the mounting cup liner.
  • Another object is to provide an economical aerosol container.
  • Another object is to provide an aerosol container with increased consumer appeal.
  • the invention in its most basic form, comprises an internal and auxiliary plastic container and a preformed plastic disc, both of which, when sealed together, provide a plastic barrier between the product and the aerosol can and the customary mounting cup usually used with such can.
  • the plastic container is just slightly smaller in dimension and therefore can be inserted into the aerosol can during formation of the can.
  • the plastic disc is formed to fit the contour of the mounting cup of the valve. Then when the valve is crimped into the can, a plastic to plastic seal is provided and the product and propellant are isolated from all the metal of the can and the valve.
  • the structure permits certain unique additional structures.
  • rim may be used decoratively around the mounting cup.
  • the disc may also be weakened by an annular score line used in conjunction with a large axial opening in the mounting cup; a pressure safety is incorporated into the aerosol.
  • One can also mold a valve body directly into the axial portion of the disc.
  • the mounting cup can be designed to retain an inner concentric chamber, whereby product and propellant may be stored separately. The product may be dispensed by the propellant collapsing the inner chamber, or by the use of a bleed valve which bleeds off the propellant with the product.
  • FIG. 1 is a partial prospective view of an aerosol container embodying this invention with the decorative rim feature thereof utilized around the: rim of the mounting cup of the valve.
  • FIGS. 2 and 3 are section views of two embodiments of the disc for lining the mounting cup.
  • FIGS. 4 and 5 are top views of the safety valve feature.
  • FIGS. 6 and 7 are partial cross sectional views showing the metal mounting cup and plastic disc-safety valve structure affixed thereto.
  • FIGS. 8 and 9 are cross sectional views showing the mounting cup with and without a decorative flaring of the plastic disc, crimped into the aerosol container.
  • FIG. 10 is a cross sectional view showing the auxiliary concentric chamber to separate the product from the propellant.
  • FIG. 11 is a cross sectional view showing the combined disc-valve body embodiment of this invention.
  • FIGS. 12 and 13 are cross sectional sequential views showing another embodiment which has a pressure fill assist structure.
  • FIG. 14 is a top view of the valve embodiment of FIG. 13, taken along lines 1414.
  • FIG. 15 is a partial cross sectional view of another embodiment of disc which has an automatic valve body retention means.
  • FIG. 16 shows the disc of FIG. 15 in use on a mounting cup.
  • FIGS. 17 and 18, and 19 and 20, show other embodiments of discs with automatic valve body retention means.
  • FIG. 21 is a cross sectional view of a valve embodying this invention and further having a stem guide structure therein.
  • the invention comprises an aerosol can 10 with an auxilary plastic container 12 internal to said can.
  • the open center top of both said can 10 and container 12 are closed by crimping a plastic lined mounting cup 16 into said open center.
  • a plastic disc 18, contoured so as to fit mounting cup 16, lines the inside of the cup and is interspaced between cup 16 and container 12. In this manner a plastic to plastic seal is accomplished. Also, a closed all-plastic container is created for the product and propellant with no exposure to the metal surface of the can 10 or the mounting cup 16.
  • Normally can 10 is formed by first side seaming metal sheet into a tube and then attaching a crown cap 22 with an open center about one end and a fiat base about the other end of said tube.
  • Auxiliary plastic container 12 may be inserted through the bottom or the top, prior to affixing the crown cap or the base respectively.
  • the plastic container 12 is preferably a blown plastic container with an integral crown top and bottom.
  • the crown top has an open center which coincides with the open center of the crown top 22 of the can 10.
  • Contoured disc 18 is placed in contact with cup 16 prior to crimping the cup into can 10.
  • the can may be filled with product prior to such or by pressure filling through the valve, both in accord with customary practice.
  • valve assembly 24 of customary design is crimped into turret 15 of the mounting cup 16 prior to insertion of the cup 16 into the open center of the metal can 10 (see FIG. 10). The edge of the cup is then crimped inwardly about the head of the open center of the crown top of can 10.
  • the valve housing 26 of the valve assembly 24 may be integral with disc 18.
  • valve housing 26 may be wedged into turret 15 by disc 18.
  • the peripheral edge of disc 18 may be extended (see FIGS. 1 and 8), and turned up external to edge of mounting cup 16 to form a decorative flare 28. It may even be printed or embossed or scalloped etc. Such is most easily accomplished when the disc is still flat and prior to vacuum forming into the desired contour. Printing etc. of the upturned edge may also be performed where the disc is injection or impact molded, after the molding thereof and prior to being joined to the underside of the mounting cup.
  • the disc may be extra thick at the rim area 30 of the mounting cup to avoid the need for gasket material usually used at such area.
  • a valve guide 32 in the open center of the disc may be provided to aid in assembly of the valve or mounting upon the can 10, or a stem guider 50 (see FIG. 21) may also be provided to aid in use.
  • disc 18 may be provided with raised central portion 33 within an enlarged center opening in cup 16 to act as a pressure relief means in the event excess pressure develops within the can.
  • Portion 33 is provided with an annular scoring 34. Such scoring may be V shaped or any other configuration, as desired.
  • groove 34 has a safety tab 36 (FIGS. 4 and 5), so that disc 18 may fracture at groove 34 but not be completely severed, thereby avoiding a missile-like pressure release.
  • FIG. 10 shows still another embodiment wherein the propellant and the product are isolated both from each other and, if desired, one or both from contact with the metal can.
  • the plastic container within the can structure of FIG. 8 is utilized.
  • the structure of FIG. 10 is preferred.
  • an auxiliary concentric chamber 41 with a propellant reservoir 38 between chamber 41 and can 10 is provided.
  • Chamber 4-1 is preferably of a pliant nature, such as polyethylene, polypropylene, nylon, etc., so as to transmit the pressure of the propellant charge to the product and thereby expel it out valve 24.
  • chamber 41 may be either stretched about an annular protrusion 40 on disc 18 with anchor ring 42 or said chamber may be pressed into an annular slot 44 in protrusion 40.
  • disc 18 has pressure fill grooves 52 on its undersurface within the turret section.
  • FIGS. 1520 three configurations of a valve body wedge containing disc 18 are shown.
  • disc 18 has a thickened bend 70 which snaps into an annular wedge (compare FIGS. 15 and 16) when disc 18, along with valve 24, are forced into turret 15 of the mounting cup 16.
  • disc 18 has an annular valve body wedge ring 76 formed in its turret portion. Valve 24 is forced over ring 16 prior to insertion of disc 18 into turret 15. The resilience of disc 18 enables such action. Thereafter annular ring 76 will hold valve 24 tightly without a crimp.
  • annular wedge ring 78 has several seal grooves to improve the seal against the valve 24 when the assembly is wedged Within the mounting cup 16.
  • the wedge 66 could be a serrated ring, the serrations avoiding the need for pressure fill passages 64.
  • FIG. 21 depicts the situation where the disc 18, has an enlarged seal ring section 82 integral therewith.
  • Section 82 has a valve stem guide 50 protruding above the mounting cup 16.
  • the valve stem 54 is depressed by the pressure fill nozzle (not shown) which embraces turret 15. This results in an inner flexing of seal 56.
  • Product, under pressure, is then forced into the aerosol valve via the clearance between the mounting cup 16 and the valve stem 54.
  • valve bypass slots 58 on the outer surface of valve body 60 of valve 24 then either through the clearance between crimp 62 and the valve body 60, if the valve is crimped within the mounting cup 16, or through pressure fill passages 64 in annular valve body wedge 66, if the valve is wedged within the mounting cup 16, as will be described hereinafter.
  • the product then enters its usual storage cavity 68 within the aerosol container.
  • a unique aerosol container has now been provided wherein contact between product and metal of the can is definitely prevented. This is in contrast to the haphazard protection accomplished by spraying a liner coating within the aerosol can.
  • the structure described also enables isolation of the propellant charge from either or both of the product and metal can.
  • Disc 18 can be easily and economically fabricated from sheet plastic by vacuum forming. or both the disc and the plastic container may be fabricated by injection or impact molding with blow molding preferably used to fabricate the container. An increase in consumer appeal is obtained through use of the decorative flaring 28. And the possibility of potentially dangerous explosive device has been completely eliminated.
  • a combination aerosol container and valve assembly comprising an outer can and a mounting cup for supporting the valve body of said valve assembly, a plastic disc contoured to cover the entire interior surface of said mounting cup, said mounting cup and said plastic disc crimped to the opening of said aerosol can, a horizontally disposed annular flexible valve seal surrounding the valve stem of said valve and arranged in sealing engagement with the undersurface of said plastic disc to seal the aerosol contents within said container, said valve body including an enlarged lip and said disc including inwardly directed spaced projections to engage said enlarged lip to wedge said valve within said mounting cup, said spaced projections being arranged relative to each other such that the interior of said container is in communication with the undersurface of said valve seal to form pressure fill passages.
  • said plastic disc includes at least one pressure fill groove formed on its undersurface, said pressure fill groove arranged in open communication with the exterior of said mounting cup, the inside diameter of said disc being sufiiciently greater than the outside diameter of said valve body to form a fill slot therebetween, said pressure fill groove being arranged relative to said flexible valve seal such that said container may be pressure filled through said pressure fill groove around the outer edge of said valve seal as it flexes under pressure, said fill slot and pressure fill passage into said container.

Landscapes

  • 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)
US8847A 1970-02-05 1970-02-05 Aerosol container Expired - Lifetime US3702669A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US884770A 1970-02-05 1970-02-05

Publications (1)

Publication Number Publication Date
US3702669A true US3702669A (en) 1972-11-14

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Family Applications (1)

Application Number Title Priority Date Filing Date
US8847A Expired - Lifetime US3702669A (en) 1970-02-05 1970-02-05 Aerosol container

Country Status (4)

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US (1) US3702669A (enrdf_load_stackoverflow)
CA (1) CA933131A (enrdf_load_stackoverflow)
DE (1) DE2105270A1 (enrdf_load_stackoverflow)
FR (1) FR2078188A5 (enrdf_load_stackoverflow)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3317809A1 (de) * 1983-05-17 1984-11-22 Fa. Ewald Euscher, 4800 Bielefeld Ventilteller fuer behaelterventile, sowie verfahren zu seiner herstellung
DE3425276A1 (de) * 1984-07-10 1986-01-23 Deutsche Präzisions-Ventil GmbH, 6234 Hattersheim Ventilaufsatz fuer druckgaspackungen
US4792067A (en) * 1985-05-13 1988-12-20 Pittway Corporation Mounting cup
US4813576A (en) * 1985-05-13 1989-03-21 Pittway Corporation Mounting cup
US4958757A (en) * 1985-05-13 1990-09-25 Pittway Corporation Ferrule for sealing with a container
AU603575B2 (en) * 1986-06-10 1990-11-22 Lothar Miczka Cover for pressure container
US5016785A (en) * 1985-05-13 1991-05-21 Pittway Corp. Skirtless mounting cup
FR2814157A1 (fr) * 2000-09-15 2002-03-22 Hilti Ag Recipient sous pression et procede de remplissage
FR2823183A1 (fr) * 2001-04-04 2002-10-11 Valois Sa Capsule metallique de sertissage pour un dispositif de distribution de produit fluide
EP1517010A3 (de) * 2003-09-20 2005-04-06 EWALD EUSCHER GmbH & Co. Ventilteller
US20060024185A1 (en) * 2002-09-03 2006-02-02 Aakerman Aake Nasal sprays
US20080220107A1 (en) * 2002-09-03 2008-09-11 Pharmacure Health Care Ab Nasal spray apparatus
US20090078902A1 (en) * 2007-09-26 2009-03-26 Precision Valve Canada Ltd. Aerosol valve
US20220274770A1 (en) * 2019-07-24 2022-09-01 Lindal France Sas Valve for pressurized container
US12258201B2 (en) 2019-07-24 2025-03-25 Lindal France Sas Valve cup for pressurized container

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2450758B1 (fr) * 1979-03-08 1986-01-17 Valois Sa Dispositif de montage de valve dans un recipient aerosol
CH671560A5 (enrdf_load_stackoverflow) * 1986-06-10 1989-09-15 Lothar Miczka

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3317809A1 (de) * 1983-05-17 1984-11-22 Fa. Ewald Euscher, 4800 Bielefeld Ventilteller fuer behaelterventile, sowie verfahren zu seiner herstellung
DE3425276A1 (de) * 1984-07-10 1986-01-23 Deutsche Präzisions-Ventil GmbH, 6234 Hattersheim Ventilaufsatz fuer druckgaspackungen
US4792067A (en) * 1985-05-13 1988-12-20 Pittway Corporation Mounting cup
US4813576A (en) * 1985-05-13 1989-03-21 Pittway Corporation Mounting cup
US4958757A (en) * 1985-05-13 1990-09-25 Pittway Corporation Ferrule for sealing with a container
US5016785A (en) * 1985-05-13 1991-05-21 Pittway Corp. Skirtless mounting cup
AU603575B2 (en) * 1986-06-10 1990-11-22 Lothar Miczka Cover for pressure container
FR2814157A1 (fr) * 2000-09-15 2002-03-22 Hilti Ag Recipient sous pression et procede de remplissage
FR2823183A1 (fr) * 2001-04-04 2002-10-11 Valois Sa Capsule metallique de sertissage pour un dispositif de distribution de produit fluide
WO2002081332A1 (fr) * 2001-04-04 2002-10-17 Valois S.A.S Capsule metallique de sertissage pour un dispositif de distribution de produit fluide
US20040074926A1 (en) * 2001-04-04 2004-04-22 Ludovic Petit Metal crimping cap for a fluid dispensing device
US7021503B2 (en) 2001-04-04 2006-04-04 Valois S.A.S. Metal crimping cap for a fluid dispensing device
US20060024185A1 (en) * 2002-09-03 2006-02-02 Aakerman Aake Nasal sprays
US20080220107A1 (en) * 2002-09-03 2008-09-11 Pharmacure Health Care Ab Nasal spray apparatus
EP1517010A3 (de) * 2003-09-20 2005-04-06 EWALD EUSCHER GmbH & Co. Ventilteller
US20090078902A1 (en) * 2007-09-26 2009-03-26 Precision Valve Canada Ltd. Aerosol valve
US20220274770A1 (en) * 2019-07-24 2022-09-01 Lindal France Sas Valve for pressurized container
US12252331B2 (en) * 2019-07-24 2025-03-18 Lindal France Sas Valve for pressurized container
US12258201B2 (en) 2019-07-24 2025-03-25 Lindal France Sas Valve cup for pressurized container

Also Published As

Publication number Publication date
FR2078188A5 (enrdf_load_stackoverflow) 1971-11-05
CA933131A (en) 1973-09-04
DE2105270A1 (de) 1971-08-26

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