US3848762A - Container - snap-on closure assembly - Google Patents

Container - snap-on closure assembly Download PDF

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Publication number
US3848762A
US3848762A US00370767A US37076773A US3848762A US 3848762 A US3848762 A US 3848762A US 00370767 A US00370767 A US 00370767A US 37076773 A US37076773 A US 37076773A US 3848762 A US3848762 A US 3848762A
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United States
Prior art keywords
snap
closure
container
plastic ring
annular bead
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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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US00370767A
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English (en)
Inventor
R Thomas
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.)
Bristol Myers Co
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Bristol Myers Co
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Publication date
Application filed by Bristol Myers Co filed Critical Bristol Myers Co
Priority to US00370767A priority Critical patent/US3848762A/en
Priority to CA185,776A priority patent/CA1024098A/fr
Application granted granted Critical
Publication of US3848762A publication Critical patent/US3848762A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B65D50/00—Closures with means for discouraging unauthorised opening or removal thereof, with or without indicating means, e.g. child-proof closures
    • B65D50/02—Closures with means for discouraging unauthorised opening or removal thereof, with or without indicating means, e.g. child-proof closures openable or removable by the combination of plural actions
    • B65D50/06—Closures with means for discouraging unauthorised opening or removal thereof, with or without indicating means, e.g. child-proof closures openable or removable by the combination of plural actions requiring the combination of different actions in succession
    • B65D50/061—Closures with means for discouraging unauthorised opening or removal thereof, with or without indicating means, e.g. child-proof closures openable or removable by the combination of plural actions requiring the combination of different actions in succession being disengageable from container only after rotational alignment of closure, or other means inhibiting removal of closure, with container, e.g. tortuous path type

Definitions

  • This invention relates to a container adapted to receive a snap-on closure. More specifically, it relates to a container adapted to receive a snap-on closure and having a plastic ring attached to its neck portion, which abuts the snap-on closure when the latter is in position on the container. This serves to prevent removal of the closure by children.
  • a container-closure assembly must provide a means for preventing removal of the closure by children. It has been proposed to construct plastic containers provided with a neck finish which consists of a relatively flat annular flange extending outwardly from the neck. These are molded so as to be integral with the neck and to provide a flat seat against which the lower margin of the snap-on cap will flushly seat when the snap-on cap is snapped into position. This flushly abutting arrangement makes it difficult to get access to the lower margin of the cap for removal. Furthermore, the proposal also provides that the outer diameter of the neck finish be longer than the outer diameter of the snap-on closure. This also makes it difficult to get access to the lower margin of the cap. Means are provided in this proposal for rotating the cap into a position whereby access may be gotten to said lower cap margin.
  • an object of the present invention to provide a container-ring-snap-on closure assembly which will successfully serve to prevent children from gaining access to dangerous materials in the container.
  • Another object of this invention is to provide containers having a rounded annular bead with neck finishes provided with ring means for preventing access to the lower margin of a snap-on closure.
  • Another object of this invention is to provide a container-ring-snap-on closure assembly of simple and inexpensive construction which may efficiently be mass produced.
  • FIG. 1 is a cut-away exploded perspective view of a container-ring-snap-on closure assembly embodied in this invention
  • FIG. 2 is a top plan view of the assembly shown in FIG. 1, the open position of the tab on the snap-on closure being shown in full line and the closed position being shown in dotted line;
  • FIG. 3 is a longitudinal sectional view of the assembly shown in FIG. 1, taken through line 3-3 of FIG. 2;
  • FIG. 4 is a cross-sectional view of the assembly shown in FIG. 3, taken through line 4-4 of FIG. 3;
  • FIG. 5 is a side view of the assembly shown in FIG. 1, illustrating the operation of removal of the snap-on closure
  • FIG. 6 is a longitudinal sectional view of a modification of the container and ring of the assembly shown in FIG. 3;
  • FIG. 7 is a cut-away exploded perspective view of another embodiment of the container-ring-snap-on closure assembly of this invention.
  • FIG. 8 is a sectional view of the assembly shown in FIG. 7, illustrating the operation of removal of the snap-on closure
  • FIG. 9 is a longitudinal sectional view of the assembly shown in FIG. 7, the open position of the tab on the snap-on closure being shown in dotted line and the closed position being shown in full line;
  • FIG. 10 is a cross-sectional view of the assembly shown in FIG. 7 taken through line 10-10 of FIG. 9;
  • FIG. 11 is a longitudinal sectional view of a modification of the container-ring-snap-on closure assembly shown in FIG. 9.
  • Lecinski U.S. Pat. No. 3,603,472 discloses a container adapted to receive a finish ring or member which provides for engagement of a screw-on closure.
  • Fitzgerald U.S. Pat. No. 3,514,003 discloses a container and screw-on closure assembly having corresponding locking means consisting of axially extending slots and protrusions, which when engaged prevent relative rotation between the container and screw-on closure.
  • neither of these references disclose containers in conjunction with snap-on closures. I
  • 3,334,763 discloses a container having an outwardly extending flange with a flattened portion, so that upon rotation of a snap-on closure to a position above this flattened portion, removal of the snap-on closure is eflected from below by pressure upon a tab extending from the lower edge of the snap-on closure.
  • Turner U.S. Pat. No. 3,484,016 discloses a container having an outwardly extending projection on its neck portion below the skirt of the safety closure to prevent removal of the closure except by pressure applied to fulcrum means on the cover of the safety closure.
  • the ODonnell patent (US. Pat. No. 3,170,585) appears to disclose from the drawings, a glass container-snap-on closure assembly.
  • This assembly utilizes an abutment on the neck of the container to receive a snap-on closure.
  • Below the abutment the container is provided with a rounded annular bead having a notch in one portion. Positioning of an extended tab of the snap-on closure with the notch allows for opening from below.
  • This rounded annular bead of the glass container of the O- Donnell device has a distinct disadvantage over the flat flanges of the nonglass containers, shown in the other prior art-devices, for preventing removal of the closure by children.
  • FIGS. 1 and 7 The assembly comprises a container 1, plastic ring 2, and snap-on closure 3.
  • container 1 comprises a body portion 4 and neck portion 5, terminating in a container opening 6.
  • Formed around neck portion 5 is an outwardly extending rounded annular bead 7.
  • Rounded annular bead 7 is disposed around neck portion 5 at container opening 6, as shown in FIG. 1.
  • annular bead 7 may be downwardly spaced from container opening 6, as shown in FIG. 6, without departing from the spirit of this invention.
  • annular bead 7 is provided with one or more notches 9, as described in more detail below.
  • Plastic ring 2 has a lower portion 10, as shown in FIG. 1, which is provided with an outwardly projecting annular groove 11. Groove 11 is provided with one or more longitudinally extending protrusions 12 on its inner surface 13, as described in more detail below.
  • Plastic ring 2 is fitted on container 1 so that the outwardly extending rounded annular head 7 of container 1 mates with the outwardly projecting annular groove 11 of plastic ring 2, preferably in snap-on engagement.
  • Notch or notches 9 mate with the longitudinally extending protrusion or protrusions 12 in interlocking engagement to prevent the relative rotation of container 1 with respect to plastic ring 2.
  • annular flange l4 rises from lower portion of plastic ring 2.
  • Annular flange 14 which in cross section tapers upwardly and outwardly as shown in FIG. 3, has its thickest portion at a point adjacent neck portion 5 of container 1.
  • Flange 14 has a flat upper surface 15, whose outer diameter in general is greater than the outer diameter of snap-on closure 3 when the latter is secured on container 1.
  • flat upper surface 15 provides an abutting seat for and prevents access to the lower margin of snap-on closure 3.
  • This outer diameter of flat upper surface 15 of flange 14 is not continuous, but rather, has a notch 16, as shown in FIGS. 1 and 4.
  • the diameter of flange 1.4 in the area of notch 16 is less than the diameter of the remaining perimeter of flange 14 and thus provides means for removal of snap-on closure 3 from below, as further described.
  • Plastic ring 2 has an upper portion 17, which is provided with an outwardly extending annular bead 18 which engages snap-on closure 3, when the latter is snapped into position.
  • Snap-on closure 3 as best shown in FIGS. 1 and 3, comprises a roof 19 and a cylindrical skirt 20 depending from said roof.
  • An inwardly extending annular bead 21 is provided on the lower internal surface of skirt 20, which engages the outwardly extending annular bead 18 of plastic ring 2 to provide a seal.
  • a tab 22, means for removal of snap-on closure 3 from plastic ring 2, is provided adjacent to the lower margin of skirt 20 and extending outwardly therefrom.
  • Tab 22 is dimensioned not to extend outwardly further than the general perimeter of flange 14 of plastic ring 2, as shown in the closed position illustrated in FIG. 2. However, upon rotation of snap-on closure 3 to a position overlapping notch 16 of plastic ring 2, as shown in the open position illustrated in FIG. 2, tab 22 may be engaged from below to effect removal of snap-on closure 3.
  • annular flange 23 is provided on ring 2, which in cross section tapers upwardly and outwardly as shown in FIG. 7, rising from lower portion 10 of plastic ring 2 and having its thickest portion at a point adjacent neck portion 5 of container 1 when ring 2 is seated on said container.
  • Flange 23 has a flat upper surface24 which provides an abutting seat for the lower margin of snap-on closure 3.
  • Flat upper surface 24 has an outer diameter which is continuous and essentially equal to the outer diameter of snap-on closure 3, as shown in FIG. 9.
  • variation of these dimensions is allowable, as shown in FIG. 11, as long as access to the lower margin of skirt 20 of snap-on closure 3 is prevented.
  • the snap-on closure 3 of this embodiment comprises a cylindrical skirt 20 and a roof 19. Roof 19 extends across the top portion of skirt 20 but is spaced slightly below the upper most margin of skirt 20 so as to form an upper cylindrical portion 29.
  • a tab 25 is hingedly secured to the upper member of top cylindrical portion 29 by a hinge member 28.
  • a lock means 26 adapted to engage the free margin of tab 25.
  • closure of this embodiment of the invention is in a condition in which tab 25 is in a closed position and the free margin of tab 25 is engaged in lock member 26. To disengage this tab and to bring it into a position so that it may be grabbed as shown in FIG.
  • tab 25 is pressed downwardly at point 30. This will move the tab downwardly until the front portion thereof contacts ridge member 27. Since tab 25 is flexible, the free margin of tab 25 will be urged upwardly and thus cause the free margin to be released from lock means 26.
  • FIG. 1 An important feature of the preferred embodiment of the present invention as shown in FIG. 1, is the relationship that exists between the lower margin of skirt of snap-on closure 3 and the flange 14 of plastic ring 2.
  • the flat surface of this flange has a flush abutment against the lower margin of the skirt when the snap-on closure is in position on the plastic ring so that the respective abutting surfaces are at right angles to each other. This greatly reduces the possibility of obtaining a purchase on the lower margin of the skirt of the snapon closure with the thumb or even teeth by getting them in between the lower margin of the skirt and flat upper surface of the flange.
  • a flush and abutting relationship between the lower margin of the snap-on cap of the device of ODonnell U.S. Pat. No.
  • the devices of this invention overcome the disadvantage associated with utilizing a container having a rounded annular bead by providing a plastic ring having a flange with a flat upper surface in conjunction with the rounded annular bead that prevents access to the skirt of the snap-on closure and subsequent removal of the closure except by the intended operation.
  • the outer diameter of the snap-on closure has been equal to, less than, but not greater than the outer diameter of the plastic ring so that the snap-on closure would not overlap the plastic ring and provide a means for a child to gain access to and remove the snap-on closure. Also, the means for removing the snap-on closure have been made difficult for a child to utilize.
  • the snap-on closure has an outwardly extending tab and the flange of the plastic ring has a notch, only by rotation of the tab of the snapon closure to a point above this notch, can the snap-on closure be removed.
  • the snap-on closure has a reclosable tab on its roof portion, only by pressing downwardly on a specific point on this reclosable tab so that it disengages and becomes available for grasping, can the snap-on closure be removed.
  • a container adapted to receive a snap-on closure comprises a neck portion, terminating in a container opening, and a rounded annular bead.
  • a plastic ring is provided, which is adapted to snap into engagement with the rounded annular bead of the container and has means for receiving the snap-on closure.
  • the plastic ring is provided with a flat flange extending outwardly from the neck portion of the container which serves as an abutting surface for the lower margin of the snap-on closure.
  • a container adapted to receive a snap-on closure comprising a neck portion, terminating in a container opening, and a rounded annular head; a plastic ring adapted to snap into engagement with said rounded annular bead, said plastic ring being provided with means for receiving said snap-on closure and a flat flange extending outwardly from said neck portion whereby a substantially flat abutting surface is provided which may serve as an abutting surface for the lower margin of said snap-on closure.
  • interlocking engagement comprises at least one protrusion on an outwardly projecting annular groove of said plastic ring and at least one notch in said rounded annular bead of said container, said protrusion and said notch being in mating engagement.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
US00370767A 1973-06-18 1973-06-18 Container - snap-on closure assembly Expired - Lifetime US3848762A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US00370767A US3848762A (en) 1973-06-18 1973-06-18 Container - snap-on closure assembly
CA185,776A CA1024098A (fr) 1973-06-18 1973-11-14 Fermeture a pression pour contenant

Applications Claiming Priority (1)

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US00370767A US3848762A (en) 1973-06-18 1973-06-18 Container - snap-on closure assembly

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CA (1) CA1024098A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030136753A1 (en) * 2001-12-27 2003-07-24 Biesecker Frederick N. Child resistant cap

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3393816A (en) * 1967-02-06 1968-07-23 Sterling Drug Inc Container and double lock safety cap therefor
US3398847A (en) * 1967-04-06 1968-08-27 Edward J. Towns Container and safety closure therefor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3393816A (en) * 1967-02-06 1968-07-23 Sterling Drug Inc Container and double lock safety cap therefor
US3398847A (en) * 1967-04-06 1968-08-27 Edward J. Towns Container and safety closure therefor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030136753A1 (en) * 2001-12-27 2003-07-24 Biesecker Frederick N. Child resistant cap

Also Published As

Publication number Publication date
CA1024098A (fr) 1978-01-10

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