US3468452A - Aerosol can end with reinforced curl - Google Patents

Aerosol can end with reinforced curl Download PDF

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Publication number
US3468452A
US3468452A US685865A US3468452DA US3468452A US 3468452 A US3468452 A US 3468452A US 685865 A US685865 A US 685865A US 3468452D A US3468452D A US 3468452DA US 3468452 A US3468452 A US 3468452A
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United States
Prior art keywords
curl
aerosol
reinforced
container
propellant
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.)
Expired - Lifetime
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US685865A
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English (en)
Inventor
Nick S Khoury
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.)
Continental Can Co Inc
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Continental Can Co Inc
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Filing date
Publication date
Application filed by Continental Can Co Inc filed Critical Continental Can Co Inc
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Publication of US3468452A publication Critical patent/US3468452A/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

Definitions

  • This invention is directed to an aerosol can end defined by an end panel terminating in a radially outwardly, downwardly directed curl which is reinforced in a manner to prevent distortion thereof when a conventional valve cup is crimpingly secured thereto.
  • the reinforcing means is a plurality of reinforcing beads spaced along the periphery of the curl which imparts a wave-like configuration thereto defined by alternating lands and valleys.
  • the lands further function as means for venting propellant which might otherwise be entrapped within the curl to atmosphere after a charging operation.
  • the usual aerosol container includes a container body to which is generally secured a can end terminating in a radially outwardly downwardly and inwardly directed curl.
  • the function of the curl is that of serving as a support for a conventional valve-carrying valve cup which generally includes an annular channel which receives and is crimped upon the curl.
  • Such conventional curls have been found to include two distinct disadvantages, the first of which is the tendency of the curl to deflect or distort during the crimping operation. This causes leakers i.e., the escape of propellant after a charging operation between the surfaces of the valve cup and the curl, which when detected result in the financially wasteful discarding of the entire container.
  • a second disadvantage results from the fact that during a charging operation it is common to cover the entire can end with a propellant charging head which introduces the propellant under pressure into the interior of the can after which the valve cup is crimped thereto.
  • the propellant charging head is, however, spaced radially outwardly of the curl and propellant is not only directed into the container but is also forced into the interior of the curl.
  • FIGURE 1 is a bottom perspective view of an aerosol can end constructed in accordance with this invention, and illustrates a peripheral curl of the can end being provided with a plurality of reinforcing beads imparting a generally wave-like configuration thereto.
  • FIGURE 2 is an enlarged fragmentary sectional view of the can end of FIGURE 1 with parts broken away for clarity, and illustrates the manner in which a valve cup is crimped to the reinforced curl.
  • FIGURE 3 is a sectional view of the can end taken generally along line 3-3 of FIGURE 2, and more clearly illustrates the equal peripheral spacing of the reinforcing beads along a peripheral edge portion of the curl.
  • FIGURE 4 is a highly enlarged fragmentary sectional view taken generally along line 44 of FIGURE 3, and illustrates one of the reinforcing beads defining a valley portion of the curl and an adjacent land portion beneath which propellant within the curl is free to vent to atmosphere.
  • FIGURE 5 is a sectional view taken along line 5-5 of FIGURE 4, and more clearly illustrates the land and valley portions of the reinforced curl.
  • a novel can or container end constructed in accordance with this invention is fully illustrated in the drawing, and is generally designated by the reference numeral 10.
  • the can end 10 is of the conventional dome-like configuration and includes an end panel 11 which is conventionally secured to a generally cylindrical can body '12 by a seam 13.
  • the body 12 is closed at its opposite end by a bottom panel or wall (not shown) which may be an integral portion of the body 12, or a separate end secured thereto by a seam corresponding to the seam 13.
  • the end panel 11 of the end 10 further includes an annular shoulder 13 having an exterior surface 14.
  • the shoulder 13 is integrally joined by a radius portion 15 to a curl 16 which is directed respectively upwardly, radially outwardly, downwardly and radially inwardly to define a chamber 17.
  • the curl '16 terminates adjacent the shoulder 13 in a peripheral edge portion 18 which in turn includes a free terminal edge 20.
  • the peripheral edge portion 18 is provided with a plurality of peripherally spaced reinforcing beads 21 which define valley portions along which the peripheral edge 21 contacts the outer surface 14 of the shoulder 13. Between adjacent pairs of the beads 21 is disposed a land portion 22 (FIGURES 4 and 5) defining a vent opening 23 between the outer surface 14 of the shoulder 13 and the edge 20 of each land portion 22.
  • the combined and alternating land and valley portions 22, 21 thereby impart a generally wave-like configuration to the peripheral end portion 18 and the edge 20 of the curl '16.
  • FIGURE 2 of the drawing illustrates a conventional aerosol dispensing valve 25 carried by a valve cup 26 which is secured to the curl 16 by a downwardly opening annular channel 27 which is crimped radially outwardly along a peripheral portion 28 beneath the shoulder 13.
  • the crimping of the valve cap 26 upon such a curl would result in the free terminal edge intimately engaging the outer surface 14 of the shoulder 13 thereby virtually completely closing the annular chamber 17 of such a curl.
  • the crimping operation in no way distorts the curl 16 which, as was heretofore noted, is reinforced by the wave-like configuration imparted thereto by the land and valley portions 22, 21, and the spaces 23 about the entire periphery of the edge portion 18 permit propellant which would be otherwise entrapped in the annular chamber 18 to vent to atmosphere in the manner indicated by the unnumbered headed arrows in FIGURES 4 and 5.
  • the reinforcement of the curl 16 not only prevents leakers by assuring that the curl 16 will not distort or collapse during the crimping operation, but also assures that perfectly sound aerosol cans will not be discarded as leakers due to the positive venting of propellant within the chamber 17 to atmosphere prior to the testing of filled and charged containers.
  • a container end of the type particularly adapted for aerosol-type dispensing containers the end being defined by an end panel terminating in a peripheral curl defining an opening of the end
  • said reinforcing means being a plurality of reinforcing beads integrally formed from the material of said curl, said curl terminating in a peripheral edge portion having a free terminal edge, and said beads being formed transversely of said edge portion and spaced along said peripheral edge portion immediately adjacent and at said free edge.
  • the container as defined in claim 1 including means between peripherally adjacent pairs of said beads for venting a fluid medium which might otherwise be entrapped interiorly of said curl, said venting means being a valley portion of said curl in spaced relationship to an adjacent portion of said end panel.
  • each head defines a valleylike edge portion of said peripheral edge, and said valleylike edge portions are more closely contiguous said end panel than adjoining land-like edge portions therebetween.
  • the container as defined in claimed 1 including means between peripherally adjacent pairs of said beads for venting a fluid medium which might otherwise be entrapped interiorly of said curl.
  • valve cup having a channel within which is received said curl, and said channel having a peripheral edge spaced from an exterior surface of said end panel whereby a fiuid medium may be vented through said venting means and beyond said channel.

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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)
US685865A 1967-11-27 1967-11-27 Aerosol can end with reinforced curl Expired - Lifetime US3468452A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US68586567A 1967-11-27 1967-11-27

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US3468452A true US3468452A (en) 1969-09-23

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US685865A Expired - Lifetime US3468452A (en) 1967-11-27 1967-11-27 Aerosol can end with reinforced curl

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US (1) US3468452A (is")
FR (1) FR1593676A (is")

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3677211A (en) * 1970-04-13 1972-07-18 Nat Can Corp Method of venting an aerosol dome
US3679090A (en) * 1970-04-09 1972-07-25 Nat Can Corp Vented curl for aerosol dome
US3679091A (en) * 1970-04-09 1972-07-25 Nat Can Corp Vented curl for aerosol dome
US4584848A (en) * 1983-11-03 1986-04-29 Barnett Eugene R Container
US4927043A (en) * 1987-11-13 1990-05-22 Ihly Industries, Inc. Necked-down can having a false seam and an apparatus to form same
US20090061133A1 (en) * 2005-08-12 2009-03-05 Jfe Steel Corporation A Corporation Of Japan Two-piece can, method for manufacturing same, and steel sheet therefor
JP2012229053A (ja) * 2011-04-27 2012-11-22 Toyo Seikan Kaisha Ltd エアゾール容器及びその製造方法
WO2019168492A1 (en) 2018-03-02 2019-09-06 Anthony Michael Mark Humidification and dehumidification process and apparatus for chilling beverages and other food products and process of manufacture

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US203328A (en) * 1878-05-07 Improvement in sheet-metal pans
US2558723A (en) * 1946-07-08 1951-07-03 American Can Co Container
US2643914A (en) * 1950-06-24 1953-06-30 Risdon Mfg Co Valve means for aerosol spray dispensers
US2995270A (en) * 1958-08-13 1961-08-08 Continental Can Co Pressure spray dispensing container and method of closing same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US203328A (en) * 1878-05-07 Improvement in sheet-metal pans
US2558723A (en) * 1946-07-08 1951-07-03 American Can Co Container
US2643914A (en) * 1950-06-24 1953-06-30 Risdon Mfg Co Valve means for aerosol spray dispensers
US2995270A (en) * 1958-08-13 1961-08-08 Continental Can Co Pressure spray dispensing container and method of closing same

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3679090A (en) * 1970-04-09 1972-07-25 Nat Can Corp Vented curl for aerosol dome
US3679091A (en) * 1970-04-09 1972-07-25 Nat Can Corp Vented curl for aerosol dome
US3677211A (en) * 1970-04-13 1972-07-18 Nat Can Corp Method of venting an aerosol dome
US4584848A (en) * 1983-11-03 1986-04-29 Barnett Eugene R Container
US4927043A (en) * 1987-11-13 1990-05-22 Ihly Industries, Inc. Necked-down can having a false seam and an apparatus to form same
US20090061133A1 (en) * 2005-08-12 2009-03-05 Jfe Steel Corporation A Corporation Of Japan Two-piece can, method for manufacturing same, and steel sheet therefor
JP2012229053A (ja) * 2011-04-27 2012-11-22 Toyo Seikan Kaisha Ltd エアゾール容器及びその製造方法
WO2019168492A1 (en) 2018-03-02 2019-09-06 Anthony Michael Mark Humidification and dehumidification process and apparatus for chilling beverages and other food products and process of manufacture

Also Published As

Publication number Publication date
FR1593676A (is") 1970-06-01

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