US3910443A - Closures - Google Patents

Closures Download PDF

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Publication number
US3910443A
US3910443A US347474A US34747473A US3910443A US 3910443 A US3910443 A US 3910443A US 347474 A US347474 A US 347474A US 34747473 A US34747473 A US 34747473A US 3910443 A US3910443 A US 3910443A
Authority
US
United States
Prior art keywords
closure
skirt
security band
lines
weakness
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
US347474A
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English (en)
Inventor
William Henry Hadley
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 US3910443A publication Critical patent/US3910443A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • B65D2401/00—Tamper-indicating means
    • B65D2401/15—Tearable part of the closure
    • B65D2401/35—Vertical or axial lines of weakness

Definitions

  • ABSTRACT A pilferproof closure is manufactured so as to have a continuous peripheral score line, internal or external, in place of the conventional line of interrupted slits, and a series of angularly spaced lines of weakness (splits or scores) in the security band. This permits closures of uniform characteristics to be produced by a procedure which involves the formation of the lines of weakness in the security band during the drawing of the shell and the formation of the peripheral line of weakness in a separate manufacturing operation.
  • the closure is subjected to substantial head pressure to bed down the gasket and, where the closure is required .to maintain pressure within the bottle, it is preferred to redraw a short length of the top end of the skirt so as to form a portion of reduced diameter and-to compress an annular portion at the edge of'the gasket'between the reduced diameter portion of the shell of the closure and a cylindrical sealing surface above the thread on the container neck, asdescribed in our BritishPat. No. 975,739. It is, therefore, the practice to form a thickened portion of the gasketat-the angle between the top and the start of the closure shell. This maybe achieved either by flowing in a viscous gasket composition or by reforming an inserted thermoplastic disc.
  • the original pilferproof closures were employed as a visible guarantee that the contents of the bottle had not been tampered with; for example to guarantee that the contents of a bottle of spirits have not been partially abstracted and replaced by water.
  • a closure blank of the type in which the upper part of the closure skirt is engaged with thread on a bottle neck by a thread rolling operation a security band at the lower margin of-the 'skirt is engaged under an abutment ring on the bottle neck is characterised by the fact that the junc-' tion between the security'band and the upper part of the skirt is defined by 'a continuous peripheral score line and that the security band is divided into separate sections by splits or lines of weakness at which the security band opens'out, on unscrewing.
  • the internal score lines may be formed by means of sharp-edged formations near the base of the internal forming member, 'so that short score lines are formed in the start of the shell.
  • the peripheral line of slits is'then formed in a separate subsequent operation. It is not practicable to index the bridges in the slit line in relation to the vertical score lines in the security band; In consequence this multiple weakening line type of pilferproof closure is inconsistent in its results, since the performance of the bridges are to some extent dependent upon their positional relationship to the vertical score lines.
  • Another advantage of the new closure is that it is ordinarily impossible to remove it without causing some severance of the metal along the peripheral score line.
  • the new closure thus retains the virtue of the known type incorporating plural splits or lines of weakness in the security band whilst reducing the possibility of deceit.
  • FIG. 1 shows a closure before application to a bottle
  • FIG. 2 shows the closure after application to the bottle.
  • FIG. 3 is a section on line IIIIII of FIG. 1.
  • the closure cap is comprised of a metal shell 1 having an internal gasket 2, which may be formed of flowed-in material or may be a preformed gasket, which is moulded to a predetermined profile after being placed in the cap.
  • a series of vertical score lines 4 are formed in the inner surface of the shell at equal angular positions. Theremay be any number of such score lines, preferablybetween three and I between their upper end and the score line 5.
  • the score line may be formed externally, if desired.
  • the illustrated closure cap is made from aluminium container sheet and the peripheral score line 5 is cut to leave a residual thickness of about 0.004 inches (0.1 mm).
  • score lines 4 are preferably vertical score lines (parallel to the axis of the shell), the score lines I may be formed oblique to the peripheral score line 5 b the use of appropriate tooling.
  • vertical splits may be formed in place of the score lines 4.
  • a small uncut tie portion is preferably left at the foot of each split;
  • the security band bursts on at least one of the weakening lines on initial unscrewing. This permits initiation of tearing along the peripheral score line 5, beginning at the upper ends of the burst weakening line.
  • a closure blank of the pilferproof type in which ,the upper part of the closure skirtis adapted to be engaged with the thread on a bottle neck by a thread rolling operation and having a security band at the lower I margin of the skirt which is adapted to be engaged under an abutment ring on the bottle neck wherein the improvement co'mprises'providing a continuous peripheral score line at the junction between the security band and the upper part of the skirt and also dividing 1 the security band into apluralityof separate sections by generally vertical lines of weakness whereby, when said blank has been positioned on a bottle neck with its closure skirt engaged with the thread on a bottle neck and with its security band engaged under the abutment ring on said neck, unscrewing said closure from said bottle and the resulting interaction between said abutment ring and the portion of said security ring which has been engaged thereunder will cause said lines of weak ness to burs

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
US347474A 1972-04-05 1973-04-03 Closures Expired - Lifetime US3910443A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1574072 1972-04-05

Publications (1)

Publication Number Publication Date
US3910443A true US3910443A (en) 1975-10-07

Family

ID=10064644

Family Applications (1)

Application Number Title Priority Date Filing Date
US347474A Expired - Lifetime US3910443A (en) 1972-04-05 1973-04-03 Closures

Country Status (12)

Country Link
US (1) US3910443A (it)
AR (1) AR194535A1 (it)
AT (1) AT321768B (it)
AU (1) AU5411373A (it)
BE (1) BE797814A (it)
BR (1) BR7302455D0 (it)
DE (1) DE2315962A1 (it)
FR (1) FR2179114A1 (it)
IL (1) IL41958A0 (it)
IT (1) IT981848B (it)
NL (1) NL7304636A (it)
ZA (1) ZA732345B (it)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4055266A (en) * 1976-10-26 1977-10-25 Arnaldo Amabili Combination crown twist-off closure capp
US4156490A (en) * 1976-05-25 1979-05-29 Prot S.R.L. Method of hermetically sealing soft-drink bottles and like containers
US4519516A (en) * 1984-01-26 1985-05-28 Owens-Illinois, Inc. Tamper indicating package
DE9208534U1 (de) * 1992-06-25 1992-09-10 Alcoa Deutschland Gmbh Verpackungswerke, 6520 Worms Garantieverschluß
US5445284A (en) * 1990-09-05 1995-08-29 Mcg Closures Limited Container closures
ES2196959A1 (es) * 2001-06-13 2003-12-16 Alucapvit Capsulas Metalicas S Capsula para realizar un cierre metalico roscado, con una banda inferior de garantia, y cierre obtenido con tal capsula.
US20060079545A1 (en) * 2002-11-15 2006-04-13 Helsinn Healthcare Sa Palonosetron for the treatment of chemotherapy induced emeses
US20060169665A1 (en) * 2003-02-28 2006-08-03 Daiwa Can Company Metal pilfer-proof cap
US20060266727A1 (en) * 2003-05-13 2006-11-30 Alcoa Deutschland Gmbh Bottle seal
US20060283829A1 (en) * 2003-06-16 2006-12-21 Aloca Deutschland Gmbh Sealing system and method for sealing containers
US20160076863A1 (en) * 2014-07-23 2016-03-17 Out Rage, Llc Broadhead collars
US20170203896A1 (en) * 2015-04-02 2017-07-20 Michael Joseph MAGUIRE Cap for container

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2523084A1 (fr) * 1982-03-09 1983-09-16 Rical Sa Capsule de bouchage inviolable en matiere plastique
AT375893B (de) * 1982-09-14 1984-09-25 Schuett Elisabeth Schraubkappe aus kunststoff und vorrichtung zum verschliessen eines behaelters mit derselben
GB2149764A (en) * 1983-10-17 1985-06-19 Metal Closures Ltd Pilfer-proof closure
EP3461759A1 (de) * 2017-09-26 2019-04-03 Rauh GmbH & Co. Blechwarenfabrikations-KG Schraubverschlusskappe aus metall

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2186580A (en) * 1938-06-22 1940-01-09 Edward H Fabrice Sealed receptacle
US2643015A (en) * 1949-12-08 1953-06-23 Dev Res Inc Tamperproof container closure
US3416474A (en) * 1965-12-09 1968-12-17 Bouchage Mecanique Method and apparatus for forming a breakable connection between two portions of a closure cap
US3601273A (en) * 1969-01-31 1971-08-24 Aluminum Co Of America Pilferproof closure with vertical weakening lines

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2186580A (en) * 1938-06-22 1940-01-09 Edward H Fabrice Sealed receptacle
US2643015A (en) * 1949-12-08 1953-06-23 Dev Res Inc Tamperproof container closure
US3416474A (en) * 1965-12-09 1968-12-17 Bouchage Mecanique Method and apparatus for forming a breakable connection between two portions of a closure cap
US3601273A (en) * 1969-01-31 1971-08-24 Aluminum Co Of America Pilferproof closure with vertical weakening lines

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4156490A (en) * 1976-05-25 1979-05-29 Prot S.R.L. Method of hermetically sealing soft-drink bottles and like containers
US4055266A (en) * 1976-10-26 1977-10-25 Arnaldo Amabili Combination crown twist-off closure capp
US4519516A (en) * 1984-01-26 1985-05-28 Owens-Illinois, Inc. Tamper indicating package
US5445284A (en) * 1990-09-05 1995-08-29 Mcg Closures Limited Container closures
DE9208534U1 (de) * 1992-06-25 1992-09-10 Alcoa Deutschland Gmbh Verpackungswerke, 6520 Worms Garantieverschluß
ES2196959A1 (es) * 2001-06-13 2003-12-16 Alucapvit Capsulas Metalicas S Capsula para realizar un cierre metalico roscado, con una banda inferior de garantia, y cierre obtenido con tal capsula.
US20060079545A1 (en) * 2002-11-15 2006-04-13 Helsinn Healthcare Sa Palonosetron for the treatment of chemotherapy induced emeses
US7581651B2 (en) * 2003-02-28 2009-09-01 Daiwa Can Company Metal pilfer-proof cap
US20060169665A1 (en) * 2003-02-28 2006-08-03 Daiwa Can Company Metal pilfer-proof cap
US20060266727A1 (en) * 2003-05-13 2006-11-30 Alcoa Deutschland Gmbh Bottle seal
US20060283829A1 (en) * 2003-06-16 2006-12-21 Aloca Deutschland Gmbh Sealing system and method for sealing containers
US20100012614A1 (en) * 2003-06-16 2010-01-21 Alcoa Deutschland Gmbh Sealing system and method for sealing containers
US8215507B2 (en) 2003-06-16 2012-07-10 Alcoa Deutschland Gmbh Sealing system and method for sealing containers
US20160076863A1 (en) * 2014-07-23 2016-03-17 Out Rage, Llc Broadhead collars
US9976835B2 (en) * 2014-07-23 2018-05-22 Feradyne Outdoors, Llc Broadhead collars
US20170203896A1 (en) * 2015-04-02 2017-07-20 Michael Joseph MAGUIRE Cap for container
US9932159B2 (en) * 2015-04-02 2018-04-03 Michael Joseph MAGUIRE Cap for container

Also Published As

Publication number Publication date
BE797814A (fr) 1973-10-05
NL7304636A (it) 1973-10-09
AR194535A1 (es) 1973-07-23
AT321768B (de) 1975-04-25
BR7302455D0 (pt) 1974-07-25
ZA732345B (en) 1974-11-27
IL41958A0 (en) 1973-06-29
DE2315962A1 (de) 1973-10-18
AU5411373A (en) 1974-10-10
IT981848B (it) 1974-10-10
FR2179114A1 (it) 1973-11-16

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