US3750821A - Pilfer-proof closure - Google Patents

Pilfer-proof closure Download PDF

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Publication number
US3750821A
US3750821A US00248440A US3750821DA US3750821A US 3750821 A US3750821 A US 3750821A US 00248440 A US00248440 A US 00248440A US 3750821D A US3750821D A US 3750821DA US 3750821 A US3750821 A US 3750821A
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US
United States
Prior art keywords
closure
container
skirt portion
locking
locking ring
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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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US00248440A
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English (en)
Inventor
C Sourbet
R Devylder
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Individual
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Individual
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Publication date
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Publication of US3750821A publication Critical patent/US3750821A/en
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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
    • B65D41/3423—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with flexible tabs, or elements rotated from a non-engaging to an engaging position, formed on the tamper element or in the closure skirt
    • B65D41/3428—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with flexible tabs, or elements rotated from a non-engaging to an engaging position, formed on the tamper element or in the closure skirt the tamper element being integrally connected to the closure by means of bridges

Definitions

  • ABSTRACT [21] AppL N03 M83) A pilfer-proof metal closure for containers having a wide mouth and an external screw thread, which in cludes a top portion covering the mouth of the conl l fl Appllmllim Priority Dam tainer and a skirt portion defining a screw thread and Apr. 29, 1971 France 7115396 having a rupture line to define a locking ring below the rupture line, the locking ring being provided with a plu- [52] US. Cl. 215/42, 215/7 rality of resilient locking members which define an an- [51] Int.
  • This invention relates to a pilfer-proof metal closure for glass bottles and jars which have an external screw thread in the vicinity of their mouth.
  • Such containers have long been used for selling food products for preservation such as jams, vegetables, etc.
  • the elevated temperatures necessary for sterilization at the moment the containers are closed generally produce after cooling, within the container, a reduced pressure which is sufficient to hold in position a closure provided with a joint placed on the edge of the con tainer mouth.
  • the elevated temperatures make it necessary to use closure means made of a heat-resistant material, and in mosj cases a metal closure is selected.
  • the closure comprises a skirt portion which surrounds the neck of the container mouth, over a height which varies according to the particular containers.
  • a screw closure in which the skirt portion of the closure is provided with a screw thread, either during production of the closure or once the closure has been set in position, the neck of the glass container acting as the screw-forming die.
  • the skirt of the closure comprises a tear line, also called a line of bridges," which defines a guarantee ring of greater or lesser width, the ring being secured for example by crimping on a thickened portion on the outside of the neck of the bottle. This operation must always be carried out on the neck of the bottle when the bottle is filled.
  • FIG. I is a side view in elevation of a closure embodying the features of this invention.
  • FIG. 2 is a cross-sectional view of the closure shown in FIG. 1;
  • FIG. 3 illustrates the neck of a wide-mouth container for receiving the closure of this invention
  • FIG. 4 is an alternative embodiment of a closure embodyingthe features of the invention.
  • FIG. 5 illustrates a two-piece closure embodying the features of the invention.
  • the invention resides in a pilfer-proof metal closure for use with glass bottles, jars and the like with a wide mouth, having an external screw thread which includes a skirt portion comprising, below the deformations defining the screw thread, a rupture line defining a guarantee or locking ring.
  • the guarantee or locking ring is provided with inwardly directed resilient locking members which define an open surface having a diameter which is less than that of a locking rim provided on the glass container, with the locking members being positioned such that they move aside when the closure is set in position, without varying the diameter of the ring.
  • the locking members in the skirt portion comprise the lower lips of a series of slots which are located in the'same plane, parallel to the end part of the cover. The lower lips are displaced towards the interior of the closure.
  • the slots can be connected together by bridges which are more or less weakened, thus forming the rupture line which is broken when the container is first opened. They can also be positioned lower than the rupture or tear line, in which case the spacing of the lips can be greater.
  • the closure 1 shown in FIGS. 1 and 2 comprises an end or top portion 2 and a skirt portion 3.
  • the internal angle formed by the end portion 2 and the skirt portion 3 is provided with a resilient joint or seal 4.
  • the closure 1 has flutes 5 at the top of the skirt portion; below the flutes 5, the skirt portion 3 is provided with a screw thread 6.
  • the screw thread 6 occupies only the upper part of the skirt portion 3 and terminates before reaching the rupture line 7 which defines the guarantee or locking ring 8.
  • the rupture line 7 comprises incisions 9 which are connected by bridges l0 and positioned in the same plane, parallel to the end portion 2 of the closure.
  • the free edge of the skirt portion 3 can be rolled at 11, as is conventional in closures of this type.
  • the guarantee or locking ring 8 which is therefore defined by the rupture line 7 above and by the rolled edge 11 below is also provided with a certain number of slots 12, the edge portion 13 of which is displaced inwardly, as is most clearly shown in FIG. 2.
  • the edge portions 13 form lips which reduce the internal passage of the closure and which can be hooked under a ring or rim 14 on the outside of the neck of the container to be closed (FIG. 3), below the screw thread 15.
  • Another ring 16 which is placed below the rim 14 can be provided on the container, and serves to support the lower part ofthe skirt portion 11.
  • FIG. 4 shows that it is possible to position the slots 12 forming the lips (edge portions 13) on the rupture line 7 itself which makes it possible to shorten the skirt portion, if desired.
  • FIG. 5 shows that the guarantee ring can also be used on two-part closures, thatis to say, closures in which the end portion 2' is separate from the skirt portion 3 in which it is held by a rim I17.
  • Some machines for closing glass jars or bottles are closure blanks on which the screw thread has not yet been formed; this operation is carried out on the neck of the container to be closed, deformation 6 of the skit portion (for example, screw-threading) being performed on the screw thread 15 itself of the container.
  • the shape of the screw thread does not play any part, and double threads, bayonet threads etc. can be used without difficulty.
  • the locking lips can be of other shapes, for example rectangular or the like.
  • a pilfer-proof metal closure for containers having a wide mouth, a locking rim and an external screw thread comprising a top portion dimensioned to cover the mouth of the container and a skirt portion, said skirt portion extending from the top portion and defining a screw thread adapted to engage the external screw thread, a rupture line on the skirt portion, a locking ring extending about the container defined by the skirt portion below the rupture line, a plurality of resilient locking members formed in the locking ring about the container to define an annular surface having a diameter less than the diameter of the locking ring to secure the locking ring to the locking rim, with the locking members extending angularly inwardly from the locking ring whereby the locking members are displaced outwardly from the container when the closure is set in position on the container without changing the diameter of the locking ring.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
US00248440A 1971-04-29 1972-04-28 Pilfer-proof closure Expired - Lifetime US3750821A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7115396A FR2134264B1 (enrdf_load_stackoverflow) 1971-04-29 1971-04-29

Publications (1)

Publication Number Publication Date
US3750821A true US3750821A (en) 1973-08-07

Family

ID=9076152

Family Applications (1)

Application Number Title Priority Date Filing Date
US00248440A Expired - Lifetime US3750821A (en) 1971-04-29 1972-04-28 Pilfer-proof closure

Country Status (13)

Country Link
US (1) US3750821A (enrdf_load_stackoverflow)
AU (1) AU4169372A (enrdf_load_stackoverflow)
BE (1) BE782827A (enrdf_load_stackoverflow)
CA (1) CA965045A (enrdf_load_stackoverflow)
CH (1) CH548323A (enrdf_load_stackoverflow)
DE (1) DE2221020A1 (enrdf_load_stackoverflow)
ES (1) ES179917Y (enrdf_load_stackoverflow)
FR (1) FR2134264B1 (enrdf_load_stackoverflow)
GB (1) GB1338532A (enrdf_load_stackoverflow)
IT (1) IT953812B (enrdf_load_stackoverflow)
LU (1) LU65271A1 (enrdf_load_stackoverflow)
NL (1) NL7205798A (enrdf_load_stackoverflow)
SE (1) SE378095B (enrdf_load_stackoverflow)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3837519A (en) * 1973-01-16 1974-09-24 W Perry Container closure with opening indicators
US4461390A (en) * 1980-04-21 1984-07-24 General Kap (P.R.) Corporation Tamper-evident plastic closure
WO1987007583A1 (en) * 1986-06-16 1987-12-17 Anchor Hocking Corporation Tamper evident composite closure and method of manufacture
AU622176B2 (en) * 1988-05-16 1992-04-02 Crown Cork Ag Closure cap made from plastic material
US5445284A (en) * 1990-09-05 1995-08-29 Mcg Closures Limited Container closures
US5711443A (en) * 1993-11-24 1998-01-27 Bennett; Paul H. Tamper-evident container closure
US5988412A (en) * 1997-12-17 1999-11-23 Rexam Plastics, Inc. Safety closure having an internal locking lug
US6050436A (en) * 1996-08-21 2000-04-18 Bennett; Paul H. Tamper-evident container closure
US6089390A (en) * 1992-07-16 2000-07-18 Closures And Packaging Services Limited Tamper evident closure
US6527132B1 (en) 1997-07-14 2003-03-04 Closures And Packaging Services Limited Closure with extended seal member
US6793082B1 (en) * 1997-10-30 2004-09-21 International Plastics And Equipment Corporation Snap-on screw-off closure for use in combination with a container
US20060169665A1 (en) * 2003-02-28 2006-08-03 Daiwa Can Company Metal pilfer-proof cap
US7228979B2 (en) 1997-10-30 2007-06-12 International Plastics And Equipment Corp. Snap-on screw-off closure with retaining member for tamper-indicating band
USRE40003E1 (en) 1993-11-24 2008-01-15 Bennett Paul H Tamper-evident container closure
USD576878S1 (en) * 2007-06-11 2008-09-16 Ball Corporation Dome top metallic lid
JP2008239185A (ja) * 2007-03-27 2008-10-09 Japan Crown Cork Co Ltd タンパーエビデント特性を有する樹脂製容器蓋及びその樹脂製容器蓋の製造方法
US20090101654A1 (en) * 2007-10-19 2009-04-23 Ball Corporation Screw Top Dome Lid With Multiple Compartments
US11059633B2 (en) 2019-10-31 2021-07-13 Cheer Pack North America Flip-top closure for container
US12297010B2 (en) * 2019-11-20 2025-05-13 Alpla Werke Alwin Lehner Gmbh & Co. Kg Container closure

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0396205A1 (en) * 1989-05-05 1990-11-07 Homer S.A. Improved security closure
IT1279973B1 (it) * 1995-07-05 1997-12-23 Sacmi Capsula a vite con anello di garanzia

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2470057A (en) * 1945-12-06 1949-05-10 Scovill Manufacturing Co Tamperproof screw closure
US3219223A (en) * 1963-05-10 1965-11-23 Metal Closures Ltd Closure seals
US3589544A (en) * 1969-06-26 1971-06-29 Charles N Hannon Tamperproof cap closure

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2470057A (en) * 1945-12-06 1949-05-10 Scovill Manufacturing Co Tamperproof screw closure
US3219223A (en) * 1963-05-10 1965-11-23 Metal Closures Ltd Closure seals
US3589544A (en) * 1969-06-26 1971-06-29 Charles N Hannon Tamperproof cap closure

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3837519A (en) * 1973-01-16 1974-09-24 W Perry Container closure with opening indicators
US4461390A (en) * 1980-04-21 1984-07-24 General Kap (P.R.) Corporation Tamper-evident plastic closure
WO1987007583A1 (en) * 1986-06-16 1987-12-17 Anchor Hocking Corporation Tamper evident composite closure and method of manufacture
AU622176B2 (en) * 1988-05-16 1992-04-02 Crown Cork Ag Closure cap made from plastic material
US5445284A (en) * 1990-09-05 1995-08-29 Mcg Closures Limited Container closures
US6325225B1 (en) 1992-07-16 2001-12-04 Closures And Packaging Services Limited Tamper evident closure
US6089390A (en) * 1992-07-16 2000-07-18 Closures And Packaging Services Limited Tamper evident closure
US6705479B2 (en) 1992-07-16 2004-03-16 Closures And Packaging Services Limited Tamper evident closure
USRE40003E1 (en) 1993-11-24 2008-01-15 Bennett Paul H Tamper-evident container closure
USRE39867E1 (en) 1993-11-24 2007-10-09 Bennett Paul H Tamper-evident container closure
US5711443A (en) * 1993-11-24 1998-01-27 Bennett; Paul H. Tamper-evident container closure
US6050436A (en) * 1996-08-21 2000-04-18 Bennett; Paul H. Tamper-evident container closure
US6332550B1 (en) 1996-08-21 2001-12-25 Paul H. Bennett Tamper-evident container closure
US20030116523A1 (en) * 1997-07-14 2003-06-26 Closures And Packaging Services Limited Closure with extended seal member
US6991123B2 (en) 1997-07-14 2006-01-31 Closures And Packaging Services Limited Closure with extended seal member
US6527132B1 (en) 1997-07-14 2003-03-04 Closures And Packaging Services Limited Closure with extended seal member
US6793082B1 (en) * 1997-10-30 2004-09-21 International Plastics And Equipment Corporation Snap-on screw-off closure for use in combination with a container
US7228979B2 (en) 1997-10-30 2007-06-12 International Plastics And Equipment Corp. Snap-on screw-off closure with retaining member for tamper-indicating band
US5988412A (en) * 1997-12-17 1999-11-23 Rexam Plastics, Inc. Safety closure having an internal locking lug
US20060169665A1 (en) * 2003-02-28 2006-08-03 Daiwa Can Company Metal pilfer-proof cap
US7581651B2 (en) * 2003-02-28 2009-09-01 Daiwa Can Company Metal pilfer-proof cap
JP2008239185A (ja) * 2007-03-27 2008-10-09 Japan Crown Cork Co Ltd タンパーエビデント特性を有する樹脂製容器蓋及びその樹脂製容器蓋の製造方法
USD576878S1 (en) * 2007-06-11 2008-09-16 Ball Corporation Dome top metallic lid
US20090101654A1 (en) * 2007-10-19 2009-04-23 Ball Corporation Screw Top Dome Lid With Multiple Compartments
US11059633B2 (en) 2019-10-31 2021-07-13 Cheer Pack North America Flip-top closure for container
US12297010B2 (en) * 2019-11-20 2025-05-13 Alpla Werke Alwin Lehner Gmbh & Co. Kg Container closure

Also Published As

Publication number Publication date
DE2221020A1 (de) 1972-11-16
SE378095B (enrdf_load_stackoverflow) 1975-08-18
NL7205798A (enrdf_load_stackoverflow) 1972-10-31
AU4169372A (en) 1973-12-20
CA965045A (en) 1975-03-25
ES179917U (es) 1973-01-16
LU65271A1 (enrdf_load_stackoverflow) 1972-12-11
FR2134264A1 (enrdf_load_stackoverflow) 1972-12-08
CH548323A (fr) 1974-04-30
IT953812B (it) 1973-08-10
GB1338532A (en) 1973-11-28
BE782827A (fr) 1972-10-30
FR2134264B1 (enrdf_load_stackoverflow) 1974-03-08
ES179917Y (es) 1973-11-16

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