US3219223A - Closure seals - Google Patents

Closure seals Download PDF

Info

Publication number
US3219223A
US3219223A US338075A US33807564A US3219223A US 3219223 A US3219223 A US 3219223A US 338075 A US338075 A US 338075A US 33807564 A US33807564 A US 33807564A US 3219223 A US3219223 A US 3219223A
Authority
US
United States
Prior art keywords
container
skirt
closure
vacuum
cap member
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
Application number
US338075A
Other languages
English (en)
Inventor
William H Hadley
Ronald L Wilton
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.)
Arconic Closure Systems International UK Ltd
Original Assignee
Metal Closures Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Metal Closures Ltd filed Critical Metal Closures Ltd
Application granted granted Critical
Publication of US3219223A publication Critical patent/US3219223A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • 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
    • B65D41/34—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt
    • B65D41/348—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt the tamper element being rolled or pressed to conform to the shape of the container, e.g. metallic closures
    • B65D41/3485—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt the tamper element being rolled or pressed to conform to the shape of the container, e.g. metallic closures having tear-off strips
    • 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
    • B65D41/34—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt
    • B65D41/348—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt the tamper element being rolled or pressed to conform to the shape of the container, e.g. metallic closures
    • 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
    • B65D51/00—Closures not otherwise provided for
    • B65D51/14—Rigid discs or spherical members adapted to be held in sealing engagement with mouth of container, e.g. closure plates for preserving jars
    • B65D51/145—Rigid discs or spherical members adapted to be held in sealing engagement with mouth of container, e.g. closure plates for preserving jars by means of an additional element connected directly to the container

Definitions

  • closure caps may be utilised to seal and externally screw-threaded container to prevent abstraction of the contents or tampering with the contents until a security band has been broken away from the main part of the closure cap, which has a screwthreaded skirt in engagement with the thread on the container neck.
  • closure cap of the type in question is the well-known Pilferproof closure cap described in British Patent No. 369,494.
  • the closure cap described in that patent is applied to an externally screwthreaded bottle by a rolling process and is formed of a shell of thin ductile metal, such as light gauge aluminium. It has a top and a skirt formed of an upper portion, which, although it may be prethreaded, is usually thread-rolled into engagement with thread on the bottle neck during application to a bottle, and a lower portion which, in application to a bottle, is rolled into engagement under a rib on the bottle neck to act as a security band.
  • An interrupted slit line forms a boundary between the upper portion and lower portion of the skirt so that they are connected :to each other only by a series of angularly spaced bridges.
  • closure cap is ⁇ of the same general type as that described in British Patents Nos. 814,437 and 895,191 which incorporates a security band, which must be borne away from the threaded upper part of the skirt of the closure cap before such threaded part can be removed from the container.
  • This closure cap is open to the same objection when applied as a vacuum seal.
  • a two-piece closure cap comprising a disc-like vacuum cap member, adapted to seal against the mouth of a container, and an outer closure shell having a threaded skirt and a security band at the lower margin of the skirt, said security band being engaged with a co-operating formation on the container to prevent the closure lshell from being removed from the container without at least partial separation of the security band from the skirt of the closure shell, the vaccum cap member being arranged so as to remain in undisturbed sealing relation with the container on unscrewing of the said outer closure shell until the degree of separation of the security band from the skirt of the closure shell, necessary to permit removal of the closure shell from the container, has taken place.
  • the disc-like vacuum cap member is trapped in a groove in the skirt of the closure shell, so as to give it a small amount of freedom of movement in the outer closure shell in the longitudinal direction, this degree of freedom of movement being greater than the longitudinal movement of the outer closure shell on the container that can be obtained without at least partially rupturing the connection between the security band and the skirt of the outer closure shell. In this manner it is possible to ensure that the seal between vacuum cap member and the container cannot be broken until the security band has been ruptured, thus making it Iobvious that the goods have been tampered with.
  • the closure shell is provided with a security band connected to the threaded closure skirt by a number of spaced bridges, as described in British Patent No.
  • an additional advantage of the arrangement is that the extra opening torque required to lift the vacuum cap member to break the vacuum does not have to be applied at :the same moment as the extra torque required to rupture the bridges, as might be required were a one-piece pilferproof closure cap to be used as a vacuum seal.
  • This is a substantial advantage because the size of a pilferproof closure cap required for a glass jar for babyfoods, for example, is considerably larger than conventional pilferproof closure caps for bottles and in consequence the force required to rupture the bridges is greater.
  • the vacuum cap member is in :the form of a disc, carrying a gasket of llowed-on polyvinyl chloride or other plastic sealing compound at or near its periphery, the edge of the vacuum cap member being trapped between the top of the outer closure shell and a rib formed in the upper part of the skirt of the shell at a level above the level of the screw-thread or above the level to which the skirt will be deformed by the formation of screwthread therein by rolling the skirt into conformity with the external screw-thread on the container neck.
  • the central area yof the top of the pilferproof closure shell is cut-out, leaving only an annular shoulder at the periphery so as to hold down the vacuum cap member against the mouth of the container whilst the vacuum is forming during the cooling of the contents of the jar and prevent the vacuum cap member from being tampered with in any manner which is not apparent on visual inspection.
  • a method of packing goods under vacuum and sealing the same to render harmful tampering obvious on visual inspection comprises packing the goods in a heated condition in a Container, having an externally screw-threaded neck, holding a vacuum cap member in sealing relationship with said container around the mouth thereof, whilst a partial vacuum develops in said container, pressing down against said Vacuum cap member an outer closure shell having a top and a skirt, which terminates in a security band defined from the start by a line of weakening, rolling thread in the skirt to engage the thread on the container and engaging said security band with a yco-operating formation on said container to hold said outer closure shell against unscrewing movement on said container, whereby said outer closure shell remains anchored to said container until said security band is at least partially broken away from the skirt of the outer closure shell to reveal that the closure shell has been tampered with.
  • FIGURE l shows one form of closure cap, partly in section, in the unapplied condition
  • FIGURE 2 shows the same form of closure cap after application to .a screw threaded container
  • FIGURES 3, 4 and 5 show alternative forms of closure cap after application to a screw threaded container and FIGURES 6 and 7 are fragmentary views of alternative forms of vacuum cap member and correspondingly shaped glass jar to permit easy stacking,
  • FIGURE 8 is a fragmentary view of a modified form of closure shell and correspondingly shaped glass jar.
  • the closure cap illustrated in FIGURES 1 and 2 takes the form of an outer metal shell 1, in the top end of which there is carried a vacuum sealing disc 2, on which any suitable form of gasket may be placed.
  • the vacuum sealing disc 2 is shown as having an annular recess 3 in which a flowed-in gasket is formed by conventional techniques.
  • the gasket may be formed in the known manner from extruded polyvinyl chloride tape.
  • the outer metal shell 1 is made as a pressing from llight gauge aluminium container sheet and comprises an annular top flange 4 and a skirt 5.
  • the skirt 5 has a locking ring or security band portion 6 at its lower edge, which is marked off from the remainder of the skirt by an interrupted slit line 7, in which are provided bridges 8.
  • the upper part of the skirt has a small diameter portion 9 which is adapted to iit fairly closely over the threads on the neck of the glassware, when such threads are at the maximum size permitted by the glassware specification.
  • the small diameter portion 9 is the portion of the skirt intended to be deformed by thread rolling to engage with the threads on the glassware.
  • portion 9 there is a portion 10 which is separated from the portion 9 by an inwardly directed rolled rib 11 which serves to retain the vacuum sealing disc 2 in the shell 1.
  • the skirt widens out into a portion 14, having the same diameter as the locking ring portion 6 and separated from the portion 9 by a step -or shoulder 15. It will thus be seen that the portion 9, which is to be deformed by the thread rolling operation is defined at the top by the rib 11 and at the bottom by the shoulder 15. This arrangement localises the effects of the thread rolling operation and reduces the strains produced thereby on the bridges 6.
  • a further advantage arising out of the fact that the diameter of the locking ring portion 6 and of the portion 14 is greater than that of the portions 9 and 10 is that the closure caps may be partially nested in one another, leading to considerable space saving for transport purposes, and furthermore to simplified handling in the machinery, used to apply the closure caps to containers.
  • the locking ring may be constructed so as to break away automatically from the jar as part of the unscrewing operation.
  • the pilferproof closure shell may be provided with the arrangement of bridges and with the weakened or severed locking ring described in our copending British patent application No. Z193/ 62.
  • the security 'band is split at a cut line, which extends obliquely across the security band and meets the interrupted slit line, which defines the upper edge of the security band, .at the gap between two bridges, which are positioned very close to each other.
  • One of these brid-ges is stronger than all the other bridges, :and does not rupture when the closure shell is unscrewed, so that the security band remains attached to the skirt by the one unbroken bridge.
  • the closure cap is subjected to axial pressure, as is conventional, to hold the sealing disc 2 in sealing engagement with the container, whilst thread is formed in the portion 9 by rolling the metal of the portion 9 into conformity, with the thread on the external surface of the neck of the container and the lower edge of the security band 6 is turned under the rib on the container.
  • FIGURE 2 it will be seen that in the thread rolling operation, by which the material of the portion 9 of the skirt is deformed to engage with the thread 9' on the container neck, the diameter of the skirt is effectively reduced immediately below the rib 11, so that after the thread rolling operation the vacuum cap member 2 is more securely held within the outer metal shell than would appear from FIGURE l. Simultaneously with the formation of the thread in the portion 9 of the skirt, the lower marginal portion of the locking ring or security band 6 is tucked under the rib 6' on the container by known means.
  • the known means apply metal closure shells of the present general type to a container in such a manner that the closure shell can only be turned through a very small angle before it is arrested by the contact of the locking ring 6 with the undersurface of the rib on the glass container and further turning movement is thereafter only possible by applying suicient torque to rupture the bridges 8.
  • the vacuum closure cap 2 is out of contact with the rib 11 on the metal closure shell until the rupture of the bridges 8 permits the outer shell to be unscrewed sufficiently to bring the rib 11 into Contact with the peripheral edge of the cap 2. It will be seen that further turning of the shell will have a camaction to lift the cap 2. Since a relatively high torque must be applied to the shell to rupture the bridges 8, immediately after the rupture of the bridges 8, the closure shell will be turning with a relatively high momentum and at this point the rib 11 comes into contact with the closure cap 2 and this, of course, assists in breaking the seal between the closure cap 2 and the mouth of the container.
  • the ribI 11 serves only to retain the vacuum closure cap 2 within the outer shell and in fact the rib 11 may be dispensed with, if means are provided for holding the cap 2 within the shell before application. It is however essential that, after application the shell 1 should be movable along the thread until resisted by the locking ring 6, without imposing a camming effect on the closure cap 2. It would be possible to modify the closure cap shown in FIGURE 1 by utilising a light adhesive bond between the top edge portion of the vacuum closure cap 2 and the undersurface of the flange 4, provided that during application, the diameter of the upper part of the closure skirt is deformed up to a suitable level, corresponding with that of the rib 11.
  • a vacuum sealing disc which is separate from the outer closure shell.
  • a container may be vacuum sealed by placing a vacuum sealing disc, identical with the disc 2, over the mouth of the container at a first station and placing over it at a second station an outer shell, identical with the outer shell 1 except that the rib 11 is omitted. Thread is then formed in the portion 9 of the skirt and the security band 6 is tucked under the rib on the container neck as before.
  • FIGURE 3 the closure there shown differs only from that shown in FIGURES 1 and 2 in that it has been adapted for tment to a container in which the external diameter of the rib 6 is the same as the external diameter of the thread 9.
  • the upper portion of the skirt, in which the thread is formed has approximately the same diameter, before the thread rolling operation, as the diameter of the security band.
  • closure cap shown in FIGURE 4 differs from that shown in FIGURES 1 and 2 in that it has been designed for itment to a container having the same characteristics as that to which the closure cap of FIG- URE 3 is secured.
  • a modied security band 26 is employed.
  • the locking band 26 has an upper score line 27 and a lower score line 28, which extend around the periphery of the shell and terminate at a cut out 30, in which lies a tongue 29. It will be apparent that the security band 26 may be broken away by pulling on the tongue 29 and severing the security band 26 along the score lines 27 and 28.
  • closure cap shown in FIGURE 5 employs a sealing disc 2, identical with that shown in FIGURE 1, but employs a modified form of security band 36, which is connected to the upper part of the skirt by bridges 7 in a discontinuous slit line.
  • the security band 36 has a number of outwardly or inwardly directed projections 37, which are engageable with corresponding formations on the neck of the container.
  • FIGURE 6 the outer shell 1 and disc 2 are shaped as shown in FIGURE 1.
  • the bottom end of the container is shaped so that the bottom of the container rests in the recessed central area of the disc 2, whilst the container is located against substantial lateral movement by the inner edge of the annular top flange 4, which contacts an inclined surface 61 on the container.
  • FIGURE 7 a modified disc 72 is employed, providing an annular platform 73, on which the container stands.
  • the container is provided with a cylindrical surface 74 to engage with the inner edge of the ange 4 and thus locate the container against lateral movement.
  • FIGURE 8 a modified outer 6 shell 81 is employed.
  • the bottom end of the container is shaped in the same manner as is shown in FIGURE 6.
  • the shell 81 is provided with a rib 82 to engage with the inclined surface on the container.
  • a two-piece blank for forming a vacuum seal with an externally screw-threaded container comprising a disclike rigid vacuum cap member, gasket means carried on one face of said cap member for sealing against the mouth of said container, an outer cup-shaped closure shell member, formed of thin deformable ductile metal and comprising a top having a central aperture therein of less diameter than said cap member, and a skirt adapted to have screw thread formed therein by being inwardly deformed between adjacent thread formations on the container, a security band at the lower margin of said skirt for engagement under a shoulder on the container, said skirt having a weakened portion between said security band and the upper part of the skirt, and a shoulder in said skirt defining a groove between the top of said closure shell member and said shoulder with the edge of said vacuum cap member being trapped in the groove, the dimension of said groove between said top and said shoulder being greater than that of the edge of said vacuum cap member, whereby unscrewing movement of said cap after thread has been formed in said skirt will result in raising said cap member out of engagement with the container
  • a closure cap for vacuum sealing an externally screw-threaded container comprising a disc-like substantially rigid vacuum cap member, gasket means on one face of the cap member for sealing against the mouth of the container, an outer cup-shaped closure shell member formed of thin deformable ductile metal and comprising a top, a threaded skirt for engagement with the threads of the container, and a security band at the lower margin of the skirt for engagement under a shoulder on the container, said skirt having a weakened portion between said security band and the upper part of the skirt, and a shoulder in said skirt dening a groove between the top of said closure shell member and said shoulder with the edge of said vacuum cap member being trapped in the groove, the dimension of said groove between said top and said shoulder being greater than that of the edge of said vacuum cap member, whereby unscrewing movement of said cap after thread has been formed in said skirt will result in raising said cap member out of engagement with the container mouth only after a predetermined angular movement of said closure shell in the unscrewing direction.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Manufacture And Refinement Of Metals (AREA)
US338075A 1963-05-10 1964-01-16 Closure seals Expired - Lifetime US3219223A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB18548/63A GB1000164A (en) 1963-05-10 1963-05-10 Improvements in closure seals

Publications (1)

Publication Number Publication Date
US3219223A true US3219223A (en) 1965-11-23

Family

ID=10114323

Family Applications (1)

Application Number Title Priority Date Filing Date
US338075A Expired - Lifetime US3219223A (en) 1963-05-10 1964-01-16 Closure seals

Country Status (10)

Country Link
US (1) US3219223A (de)
AT (1) AT268912B (de)
BE (1) BE647253A (de)
CH (1) CH427540A (de)
DE (1) DE1432213A1 (de)
DK (1) DK122514B (de)
ES (1) ES299173A1 (de)
GB (1) GB1000164A (de)
NL (1) NL6405175A (de)
NO (1) NO115566B (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3374913A (en) * 1965-10-08 1968-03-26 Continental Can Co Tamper-proof package
US3750821A (en) * 1971-04-29 1973-08-07 C Sourbet Pilfer-proof closure
EP1686070A1 (de) * 2005-01-26 2006-08-02 Plato product consultants V.O.F. Leicht zu öffnender Verschluss
EP3889061A1 (de) 2020-03-31 2021-10-06 Bettina Böttger Vakuum-, gas- und flüssigkeitsdichter behälter mit wiederverwendbarer kappe
WO2021198179A1 (en) 2020-03-31 2021-10-07 Boettger Bettina Container with a reusable cap

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3913772A (en) * 1973-09-14 1975-10-21 Anchor Hocking Corp Tamperproof closure cap and sealed package
CH657589A5 (de) * 1981-11-19 1986-09-15 Ernst & Co Inh Geiger & Neuens Schraubdeckel mit innen- und aussendeckel.
NL8201681A (nl) * 1982-04-22 1983-11-16 Lindner Ind Afsluitdeksel voor het onder vacuuem afsluiten van een houder (vacuuem snap cap).
KR840005048A (ko) * 1982-06-07 1984-11-03 원본미기재 복합 뚜껑
US5031787A (en) * 1989-09-01 1991-07-16 Anchor Hocking Packaging Company Low height floating disk closure
DE102018221107B3 (de) * 2018-12-06 2019-09-26 Heidelberger Druckmaschinen Ag Vorrichtung in einer Druckmaschine

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US666139A (en) * 1900-03-08 1901-01-15 Robert Hay Sealing-cap for vessels.
US2008593A (en) * 1932-06-27 1935-07-16 Phoenix Metal Cap Co Inc Jar closure
US2056778A (en) * 1935-09-30 1936-10-06 Guardian Safety Seal Company Severable sheet metal articles such as bottle sealing caps
US2280724A (en) * 1940-07-23 1942-04-21 Aluminum Co Of America Closure and container
US2362009A (en) * 1940-08-02 1944-11-07 Aluminum Co Of America Method of applying closures to containers
US2643015A (en) * 1949-12-08 1953-06-23 Dev Res Inc Tamperproof container closure
US2802322A (en) * 1950-09-08 1957-08-13 Podesta Armando Method for the sealing of containers by means of pre-curled metal caps

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US666139A (en) * 1900-03-08 1901-01-15 Robert Hay Sealing-cap for vessels.
US2008593A (en) * 1932-06-27 1935-07-16 Phoenix Metal Cap Co Inc Jar closure
US2056778A (en) * 1935-09-30 1936-10-06 Guardian Safety Seal Company Severable sheet metal articles such as bottle sealing caps
US2280724A (en) * 1940-07-23 1942-04-21 Aluminum Co Of America Closure and container
US2362009A (en) * 1940-08-02 1944-11-07 Aluminum Co Of America Method of applying closures to containers
US2643015A (en) * 1949-12-08 1953-06-23 Dev Res Inc Tamperproof container closure
US2802322A (en) * 1950-09-08 1957-08-13 Podesta Armando Method for the sealing of containers by means of pre-curled metal caps

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3374913A (en) * 1965-10-08 1968-03-26 Continental Can Co Tamper-proof package
US3750821A (en) * 1971-04-29 1973-08-07 C Sourbet Pilfer-proof closure
EP1686070A1 (de) * 2005-01-26 2006-08-02 Plato product consultants V.O.F. Leicht zu öffnender Verschluss
EP3889061A1 (de) 2020-03-31 2021-10-06 Bettina Böttger Vakuum-, gas- und flüssigkeitsdichter behälter mit wiederverwendbarer kappe
WO2021198179A1 (en) 2020-03-31 2021-10-07 Boettger Bettina Container with a reusable cap

Also Published As

Publication number Publication date
NO115566B (de) 1968-10-21
AT268912B (de) 1969-02-25
CH427540A (fr) 1966-12-31
NL6405175A (de) 1964-11-11
DK122514B (da) 1972-03-13
BE647253A (de) 1964-08-17
GB1000164A (en) 1965-08-04
ES299173A1 (es) 1964-11-01
DE1432213A1 (de) 1969-03-13

Similar Documents

Publication Publication Date Title
US4007851A (en) Anti-missiling bottle closure
US3348718A (en) Bottle closure
US5031787A (en) Low height floating disk closure
US3913771A (en) Closure cap with tamper indicator
US4279353A (en) Plastic bottle cap
US3672528A (en) Neck for wide-mouth jar and cap therefor
US3460701A (en) Composite closure
US3455479A (en) Bottle closure having a frangible skirt portion
EP0324196A2 (de) Originalitätsverschluss in Form eines mit einem Flansch versehenen Stopfens
US20030141271A1 (en) Composite closure having disk tightening feature
US3001657A (en) Closures for bottles and like containers
US3219223A (en) Closure seals
US4369889A (en) Tamperproof closure
US20070017891A1 (en) Composite two-piece tamper-evident closure with a seal-delay-release feature and a method therefor
US3664536A (en) Screw type closure cap
US3716162A (en) Tamper-proof closure arrangement
US3460703A (en) Container and closure
US2367317A (en) Closure
US1908245A (en) Tamperproof seal
US3685677A (en) Press-on, twist-off tamper indicating closure cap
US3608765A (en) Neck for widemouth jar and cap therefor
US3223279A (en) Snap-on closure assembly
US3713545A (en) Venting closure
US2066390A (en) Closure for containers
US3851782A (en) Container closure with vent opening means