US2808954A - Tamper-proof closures for containers - Google Patents

Tamper-proof closures for containers Download PDF

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Publication number
US2808954A
US2808954A US587039A US58703956A US2808954A US 2808954 A US2808954 A US 2808954A US 587039 A US587039 A US 587039A US 58703956 A US58703956 A US 58703956A US 2808954 A US2808954 A US 2808954A
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Prior art keywords
hood
flange
closure
annular
shell
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Expired - Lifetime
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US587039A
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Winfield F Smith
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OWENS HLINOIS GLASS Co
OWENS-HLINOIS GLASS Co
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OWENS HLINOIS GLASS Co
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Application filed by OWENS HLINOIS GLASS Co filed Critical OWENS HLINOIS GLASS Co
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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
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/32—Caps or cap-like covers with lines of weakness, tearing-strips, tags, or like opening or removal devices, e.g. to facilitate formation of pouring openings
    • B65D41/40—Caps or cap-like covers adapted to be secured in position by permanent deformation of the wall-engaging parts
    • B65D41/42—Caps or cap-like covers adapted to be secured in position by permanent deformation of the wall-engaging parts made of relatively-stiff metallic material, e.g. crown caps

Definitions

  • the present invention relates to improvements in tamper-proof closures for containers, such for example as shell vials, ligature tubes and similar cylindrical containers which'ordinarily are made of drawn glass tubing.
  • An object of my invention is the provision of a simple, efiective and comparatively inexpensive closure including a hood formed of rubber-like material such, for example, as polyethylene, such hood being telescoped over the open end of a vial or tube and firmly held in sealing engagement with the container by means of a thin metal shell, or ferrule.
  • Afurther object of my invention is the provision of a closure of the above character in which the shell includes a preformed annular hollow bead projecting radial-- ly inward of the skirt and intended to be collapsed vertically by shortening of the shell skirt, all to the end that the bead will press a portion of the hood flange firmly against an external sealing surface of the container.
  • a further object of my invention is the provision of a plastic hood incorporating on the exterior surface of the flange portion an annular series of vertical cushioning ribs which are intended to prevent application of any excessive compression strain to the glass such as might result from pressure which the shell exerts during and after application. To this end the ribs may be spread laterally under pressure into the space between said ribs.
  • a still further object is to so form ribs on the exterior surface of the hood flange that they will, to a substantial degree, compensate for variations in the outside diameter of the vial or tube and thereby insure proper and effective sealing and, additionally, to engage an inwardly turned free edge portion of the shell skirt, whereby to hold the two elements against accidental separation.
  • Fig. 1 is a vertical transverse sectional view of a closure incorporating my invention.
  • Fig. 2 is a fragmentary detail sectional view illustrating the sealing position of a closure upon a vial and in dotted lines a conventional means for afiixing the closure to the container.
  • Fig. 3 is a detail sectional view taken substantially along the plan of line 3-3 of Fig. 2.
  • Fig. 4 is a side elevational view of the plastic hood.
  • Fig. 5 is a perspective view of the closure showing the tear-strip feature which facilitates removal of the closure from a container.
  • a glass vial or similar straight-sided container which is or in any event may be formed of drawn glass tubing.
  • a vial is ordinarily a cylinder, the walls of which are relatively thin and, as a consequence, subject to breakage if excessive pressure is applied thereto incident to attachment of a closure.
  • My tamper-proof closure as shown, comprises a cuplike plastic hood 11 and a sheet metal shell 12 which is I 2,808,954 Patented Oct; 8, 1957 of generally cup-like form and telescoped over the plastic hoodand by novel means, yet to be described, held in assembled relationship to the latter.
  • the plastic hood may well be formed of polyethylene or other plastic material having similar characteristics and, as shown, comprises a circular top portion 13 and a depending annular flange which preferably has formed on its exterior surface an annular series of ribs 15.
  • Each of these ribs has a base portion 16 lying in the plane of the free lower edge of the flange 14 and, as shown in Figs. 1 and 4, extends upwardly toward, but terminates short of the circular top portion 13.
  • These ribs also taper upwardly so that both their width and thickness decrease toward said top portion. 1
  • the shell 12 preferably, although not necessarily, is formed of light-gauge aluminum and comprises a circular panel 17 and depending annular attaching skirt 18 which is of slightly greater height than the flange of the hood ll.
  • the free lower margin of the attaching skirt 18 is turned inwardly slightly-to provide a supporting or retaining flange 19 or shelf with which the base portions of the ribs are in contact, as shown in Fig. 1, so that the two elements are effectively secured against accidental separation.
  • a hollow annular bead 20 is formed internally of the skirt 18 of the shell preferably at a point somewhat nearer the panel portion than to the free end of the skirt, such bead projecting radially inward to provide an annular inner surface of somewhat lesser diameter than the inner surface of the attaching skirt proper, for contact initially with the upper end portions of the ribs 15.
  • This hollow bead is collapsible vertically under pressure of closure applying mechanism in a fashion and for the purpose to be set out presently.
  • the closure in the form shown in Fig. l, is telescoped over the open end of a vial and pressed downwardly until the top portion 13 of the hood has been firmly brought into contact with the rim or mouth forming wall of-the container.
  • an anvil 21 is brought into position as shown in Fig. 2 to apply additional sealing pressure to the closure and confine the skirt 1% so that it will not become deformed incident to deliberately collapsing the hollow bead 2i
  • suitable jaws 22 are moved into position beneath the inwardly curved flange 19 of the skirt 18.
  • a tear-strip 23 terminating in a finger piece 24 which, together, provides means facilitating ready removal of the closure and at the same time performing the function of well-known tamper-proof closures.
  • a finger piece 24 which, together, provides means facilitating ready removal of the closure and at the same time performing the function of well-known tamper-proof closures.
  • lifting of the finger piece 24 and separating the strip from the closure proper along the score lines 25 simplifies the closure removal problem. It is also apparent that such a closure cannot be reapplied without clearly indicating that the original package has been opened.
  • a closure of the character described comprising a cup-like hood formed of a rubber-like material and including a circular top portion, an annular flange depending from the margin of the top portion, a light gauge sheet metal shell within which said hood is nested, said shell including a circular panel, an annular skirt dependfree edge turned inwardly to hold the hood and shell against accidental separation, a hollow axially collapsible annular bead projecting radially inward toward the flangeof said hood, and an annular-series of external ribs formed on the hood flange and each-such rib extending from the free edge of the flange toward bu-t terminating short of the top portion.
  • a closure of the character described comprising a cupvlike hood formed of a'rubber-like. material-and including a circular top portion, an, annular flange depending from the margin of the top portion, a light gauge sheet metal shell within which said hood is nested, said shellincluding a circular panel, an annular skirt depending.v from the margin of the panel, said skirthaving its free edge turned inwardly to hold the.
  • a closure of the character described comprising a cup-like hood formed of a rubber-like material and including a circular top portion, an annular flange depending from the margin of the top portion, a light gauge sheet metal shell within which said, hood is nested, said shell including a circular panel, an annular skirt depending from the margin of the panel, said skirt having its free edge turned inwardly to hold the hood.
  • a closure of the character described comprising a cup-like hood formed ofa rubber-like material' and ineluding a ular t p p rti n, an ann lar flange d nceding from the margiubf the t p PQHZQH, a ligh gauge sheet metal shell within which said hood is nested, said shell including a circular panel; an annularskirtdepending from the margin oi the p nel, saidsls rt having its free edge turned inwardly to hold the hood and shell against accidental separation, a hollow axially collapsible annular bead projecting radially inward toward the flange of s d h a nd an annular seri s of.
  • each such rib having one end. in contact with the inward y rne free edge tthe. shell skir aud its other nd terminat ng. in pr ximity-to but ab th hollow bead.

Description

Oct. 8, 1957 w. F, SMITH 2,808,954
TAMPER-PROOF CLOSURES FOR CONTAINERS Filed May 24. 1956 INVENTOR WE 6171211 United States TAMPER-PROOF CLOSURES non CONTAINERS Winfield F. Smith, Vineland, N. 1., assignor to Owens- Illinois GlassCompany, a corporation of ()hio Application May 24, 1956, Serial No. 587,039
4 Claims. (Cl. 215-38) The present invention relates to improvements in tamper-proof closures for containers, such for example as shell vials, ligature tubes and similar cylindrical containers which'ordinarily are made of drawn glass tubing.
An object of my invention is the provision of a simple, efiective and comparatively inexpensive closure including a hood formed of rubber-like material such, for example, as polyethylene, such hood being telescoped over the open end of a vial or tube and firmly held in sealing engagement with the container by means of a thin metal shell, or ferrule. v v
Afurther object of my invention is the provision of a closure of the above character in which the shell includes a preformed annular hollow bead projecting radial-- ly inward of the skirt and intended to be collapsed vertically by shortening of the shell skirt, all to the end that the bead will press a portion of the hood flange firmly against an external sealing surface of the container.
A further object of my invention is the provision of a plastic hood incorporating on the exterior surface of the flange portion an annular series of vertical cushioning ribs which are intended to prevent application of any excessive compression strain to the glass such as might result from pressure which the shell exerts during and after application. To this end the ribs may be spread laterally under pressure into the space between said ribs.
A still further object is to so form ribs on the exterior surface of the hood flange that they will, to a substantial degree, compensate for variations in the outside diameter of the vial or tube and thereby insure proper and effective sealing and, additionally, to engage an inwardly turned free edge portion of the shell skirt, whereby to hold the two elements against accidental separation.
Other objects will be in part apparent and in part pointed out hereinafter.
In the drawings:
Fig. 1 is a vertical transverse sectional view of a closure incorporating my invention.
Fig. 2 is a fragmentary detail sectional view illustrating the sealing position of a closure upon a vial and in dotted lines a conventional means for afiixing the closure to the container.
Fig. 3 is a detail sectional view taken substantially along the plan of line 3-3 of Fig. 2.
Fig. 4 is a side elevational view of the plastic hood.
Fig. 5 is a perspective view of the closure showing the tear-strip feature which facilitates removal of the closure from a container.
In the illustrated embodiment of my invention, it is shown for use with and applied to a glass vial or similar straight-sided container, which is or in any event may be formed of drawn glass tubing. Such a vial is ordinarily a cylinder, the walls of which are relatively thin and, as a consequence, subject to breakage if excessive pressure is applied thereto incident to attachment of a closure.
My tamper-proof closure, as shown, comprises a cuplike plastic hood 11 and a sheet metal shell 12 which is I 2,808,954 Patented Oct; 8, 1957 of generally cup-like form and telescoped over the plastic hoodand by novel means, yet to be described, held in assembled relationship to the latter. v
The plastic hood may well be formed of polyethylene or other plastic material having similar characteristics and, as shown, comprises a circular top portion 13 and a depending annular flange which preferably has formed on its exterior surface an annular series of ribs 15. Each of these ribs has a base portion 16 lying in the plane of the free lower edge of the flange 14 and, as shown in Figs. 1 and 4, extends upwardly toward, but terminates short of the circular top portion 13. These ribs also taper upwardly so that both their width and thickness decrease toward said top portion. 1
The shell 12, preferably, although not necessarily, is formed of light-gauge aluminum and comprises a circular panel 17 and depending annular attaching skirt 18 which is of slightly greater height than the flange of the hood ll. The free lower margin of the attaching skirt 18 is turned inwardly slightly-to provide a supporting or retaining flange 19 or shelf with which the base portions of the ribs are in contact, as shown in Fig. 1, so that the two elements are effectively secured against accidental separation. A hollow annular bead 20 is formed internally of the skirt 18 of the shell preferably at a point somewhat nearer the panel portion than to the free end of the skirt, such bead projecting radially inward to provide an annular inner surface of somewhat lesser diameter than the inner surface of the attaching skirt proper, for contact initially with the upper end portions of the ribs 15. This hollow bead is collapsible vertically under pressure of closure applying mechanism in a fashion and for the purpose to be set out presently.
In applying a closure of the above form to a vial or such container, the closure, in the form shown in Fig. l, is telescoped over the open end of a vial and pressed downwardly until the top portion 13 of the hood has been firmly brought into contact with the rim or mouth forming wall of-the container. Thereupon an anvil 21 is brought into position as shown in Fig. 2 to apply additional sealing pressure to the closure and confine the skirt 1% so that it will not become deformed incident to deliberately collapsing the hollow bead 2i Next, suitable jaws 22 are moved into position beneath the inwardly curved flange 19 of the skirt 18. Immediately thereafter these jaws 22 are moved axially upward so that the aforementioned flange 19 is bent inwardly and the hollow bead 20 collapsed vertically resulting in a substantial decrease in the m'srall height of the attaching skirt and consequent snug sealing contact of the hood flange with the side wall of the container 10. As shown in Fig. 2, the hollow bead may be completely collapsed so that it becomes quite deeply embedded in the hood flange 14.
In Fig. 5, I have shown a tear-strip 23 terminating in a finger piece 24 which, together, provides means facilitating ready removal of the closure and at the same time performing the function of well-known tamper-proof closures. Obviously lifting of the finger piece 24 and separating the strip from the closure proper along the score lines 25 simplifies the closure removal problem. It is also apparent that such a closure cannot be reapplied without clearly indicating that the original package has been opened.
Modifications may be resorted to within the spirit and scope of the appended claims.
I claim:
1. A closure of the character described comprising a cup-like hood formed of a rubber-like material and including a circular top portion, an annular flange depending from the margin of the top portion, a light gauge sheet metal shell within which said hood is nested, said shell including a circular panel, an annular skirt dependfree edge turned inwardly to hold the hood and shell against accidental separation, a hollow axially collapsible annular bead projecting radially inward toward the flangeof said hood, and an annular-series of external ribs formed on the hood flange and each-such rib extending from the free edge of the flange toward bu-t terminating short of the top portion. g
2. A closure of the character described comprisinga cupvlike hood formed of a'rubber-like. material-and including a circular top portion, an, annular flange depending from the margin of the top portion, a light gauge sheet metal shell within which said hood is nested, said shellincluding a circular panel, an annular skirt depending.v from the margin of the panel, said skirthaving its free edge turned inwardly to hold the. hood and shell against accidental separation, ahollow axially collapsible annular bead projecting radially inwardv toward the flange of said hood, and a series of circumferentially spaced ribs formed on the exterior surface of the hood flange, each rib extending from the free edge of the flange toward the top portion and decreasing in width and thickness toward the latter.
3. A closure of the character described comprising a cup-like hood formed of a rubber-like material and including a circular top portion, an annular flange depending from the margin of the top portion, a light gauge sheet metal shell within which said, hood is nested, said shell including a circular panel, an annular skirt depending from the margin of the panel, said skirt having its free edge turned inwardly to hold the hood. and shell against accidental separation, a hollow axially collapsible annular bead projecting radially inward toward the flange of said hood, and a series of circumferentially spaced'rib's formed on the exterior surfi ace of the hood flange, each rib extending from the free edge of the flange toward the top portion and decreasing in width and thickness toward the latter, each said rib terminating in proximity to the lower side of said hollow bead.
4. A closure of the character described comprising a cup-like hood formed ofa rubber-like material' and ineluding a ular t p p rti n, an ann lar flange d nceding from the margiubf the t p PQHZQH, a ligh gauge sheet metal shell within which said hood is nested, said shell including a circular panel; an annularskirtdepending from the margin oi the p nel, saidsls rt having its free edge turned inwardly to hold the hood and shell against accidental separation, a hollow axially collapsible annular bead projecting radially inward toward the flange of s d h a nd an annular seri s of. externa ibs o med. on the hood flange, each such rib having one end. in contact with the inward y rne free edge tthe. shell skir aud its other nd terminat ng. in pr ximity-to but ab th hollow bead.
Reierences. it d ihthe file Qt't ns patent UNITED STATES PATENTS 2,080,747 Scofield May 18, 1937' 2,136,545 Gibbs Nov;.l 5', 1938- 2,186,908 Page et a1. Ian. 9, 1940 2,659,509 Yue San Fong Nov: 17, 1 953
US587039A 1956-05-24 1956-05-24 Tamper-proof closures for containers Expired - Lifetime US2808954A (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2947463A (en) * 1957-06-27 1960-08-02 Lily Tulip Cup Corp Closure lids for paper containers
US2961109A (en) * 1954-09-07 1960-11-22 Vetri Ind S A R L Composite closure caps and method for fitting same on containers
US2972432A (en) * 1958-02-27 1961-02-21 Lily Tulip Cup Corp Flexible thermoplastic nestable closure lids
US3439825A (en) * 1967-12-07 1969-04-22 West Co Container closure
US3823841A (en) * 1972-04-13 1974-07-16 American Hospital Supply Corp Closure system for sterile medical liquid container
US3905503A (en) * 1966-12-05 1975-09-16 Ermal C Fraze Container closure having easy-opening means
US4205707A (en) * 1978-12-11 1980-06-03 Hydril Company Pipe protector
US4442735A (en) * 1982-11-24 1984-04-17 Allan Chance Champagne cork puller
US20020100742A1 (en) * 2001-01-30 2002-08-01 Gilles Jourdin Device for fastening a distribution component on a vessel neck

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2080747A (en) * 1932-07-30 1937-05-18 Anchor Cap & Closure Corp Sealed package and method of sealing
US2136545A (en) * 1935-01-19 1938-11-15 Anchor Cap & Closure Corp Cap and package
US2186908A (en) * 1939-02-01 1940-01-09 Burroughs Wellcome Co Air filtering stopper
US2659509A (en) * 1949-09-02 1953-11-17 Fong Yue San Bottle cap

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2080747A (en) * 1932-07-30 1937-05-18 Anchor Cap & Closure Corp Sealed package and method of sealing
US2136545A (en) * 1935-01-19 1938-11-15 Anchor Cap & Closure Corp Cap and package
US2186908A (en) * 1939-02-01 1940-01-09 Burroughs Wellcome Co Air filtering stopper
US2659509A (en) * 1949-09-02 1953-11-17 Fong Yue San Bottle cap

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2961109A (en) * 1954-09-07 1960-11-22 Vetri Ind S A R L Composite closure caps and method for fitting same on containers
US2947463A (en) * 1957-06-27 1960-08-02 Lily Tulip Cup Corp Closure lids for paper containers
US2972432A (en) * 1958-02-27 1961-02-21 Lily Tulip Cup Corp Flexible thermoplastic nestable closure lids
US3905503A (en) * 1966-12-05 1975-09-16 Ermal C Fraze Container closure having easy-opening means
US3439825A (en) * 1967-12-07 1969-04-22 West Co Container closure
US3823841A (en) * 1972-04-13 1974-07-16 American Hospital Supply Corp Closure system for sterile medical liquid container
US4205707A (en) * 1978-12-11 1980-06-03 Hydril Company Pipe protector
US4442735A (en) * 1982-11-24 1984-04-17 Allan Chance Champagne cork puller
US20020100742A1 (en) * 2001-01-30 2002-08-01 Gilles Jourdin Device for fastening a distribution component on a vessel neck
US7207452B2 (en) * 2001-01-30 2007-04-24 Valois S.A.S. Device for fastening a distribution component on a vessel neck

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