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US20040055990A1 - Screw cap with a guarantee strip - Google Patents

Screw cap with a guarantee strip Download PDF

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Publication number
US20040055990A1
US20040055990A1 US10/415,873 US41587303A US2004055990A1 US 20040055990 A1 US20040055990 A1 US 20040055990A1 US 41587303 A US41587303 A US 41587303A US 2004055990 A1 US2004055990 A1 US 2004055990A1
Authority
US
United States
Prior art keywords
screw cap
pour
guarantee strip
fit
cap according
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.)
Abandoned
Application number
US10/415,873
Other languages
English (en)
Inventor
Werner Dubach
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.)
Terxo AG
Original Assignee
Individual
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 Individual filed Critical Individual
Assigned to TERXO AG reassignment TERXO AG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DUBACH, WERNER FRITZ
Publication of US20040055990A1 publication Critical patent/US20040055990A1/en
Abandoned 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
    • B65D41/3442—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with rigid bead or projections formed on the tamper element and coacting with bead or projections on the container
    • B65D41/3447—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with rigid bead or projections formed on the tamper element and coacting with bead or projections on the container the tamper element being integrally connected to the closure by means of bridges
    • 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
    • B65D41/3404—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with ratchet-and-pawl mechanism between the container and the closure skirt or the tamper element
    • B65D41/3409—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with ratchet-and-pawl mechanism between the container and the closure skirt or the tamper element the tamper element being integrally connected to the closure by means of bridges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67B—APPLYING CLOSURE MEMBERS TO BOTTLES JARS, OR SIMILAR CONTAINERS; OPENING CLOSED CONTAINERS
    • B67B3/00—Closing bottles, jars or similar containers by applying caps
    • B67B3/22—Closing bottles, jars or similar containers by applying caps by applying snap-on caps

Definitions

  • This invention relates to a screw cap of plastic and to a container of plastic or soft material with a pour-out, wherein the screw cap has a guarantee strip at the lower circumferential edge, which via break-off webs is connected to the lower edge of the casing wall of the screw cap.
  • Screw caps of the above mentioned type have been known for many years, and their design shape is not least dependent on the material from which the container on which the closure is placed is manufactured. With glass bottles the pour-out is usually standardized and the rotary closures must accordingly correspond to the standard. With containers of plastic one may vary the pour-out much more freely. With containers of so-called soft material, pour-outs of plastic are fastened thereon, which may be manufactured with a large degree of freedom with regard to design.
  • This invention relates to screw caps which cooperate with containers of plastic or soft material, having a pour-out manufactured of plastic and wherein the screw cap and pour-out are matched to one another.
  • Containers of soft material may be flexible tubing containers of plastic films or containers of coated cardboard or in particular also containers which are manufactured of multi-layer laminated film materials.
  • Such multi-layer laminated films can have a paper or cardboard layer which is designed multi-layered with plastic films or an aluminum foil layer.
  • Snap hinge closures are also known in the most varied of design forms, which are placed onto specially shaped plastic containers, in particular are also screwed on the containers. With this, on the lower part of the snap hinge closure there are guarantee strips with several tear tabs which may be placed into a suitably designed container neck in a rotationally secure manner. Thus, the removal of the rotary closure from the container is prevented without opening the snap hinge closure, and may be placed on afterwards. All these closures however have one guarantee strip with a tear-open tab, and the guarantee strip must first be removed by hand, and subsequently the snap hinge closure may be brought into its position of use. U.S. Pat. No. 4,722,449 shows an example of such a closure.
  • U.S. Pat. No. 3,650,428 teaches a screw cap of the above mentioned type with which ratchet-like projections are attached on the pour-out which cooperate with ratchet-like positive-fit means on the guarantee strip.
  • This solution requires a guarantee strip which is not closed per se, with a tear-open tab, wherein the guarantee strip must be removed before screwing off the closure.
  • the assembly is a further problem of this embodiment.
  • the ratchet-like design is necessary because the screw cap is screwed on. This is possible because the guarantee strip, as already mentioned, is not closed per se, but comprises an opening by which the required elasticity is provided. These closures are not regarded as particularly secure. On screwing-on, the edges of the ratchet-like parts are slightly deformed, and thus such closures may often be also unscrewed without damage to the guarantee strip.
  • FIG. 1 is a vertical diametrical section taken through a first embodiment form of a screw cap according to this invention, with a pour-out placed on a container of soft material;
  • FIG. 2 is a similar view but with a screwed-off cap
  • FIG. 3 is a similar view but shows a vertical diametrical section taken through a slightly modified pour-out
  • FIG. 4 shows a perspective view of the screw cap with a pour out according to FIG. 1;
  • FIG. 5 shows a perspective view of a smaller variant of the closure
  • FIG. 6 shows a lateral view of the pour-out according to FIG. 2;
  • FIG. 7 shows one variant of a pour-out in a top view
  • FIG. 8 shows a screw closure in a vertical diametrical section which is designed fitting with the pour-out according to FIG. 7.
  • the screw cap 1 may basically be formed conventionally.
  • the screw cap 1 comprises a circumferentially cylindrical casing wall 7 which is closed off to the top by a cover surface 50 .
  • the casing wall 7 has an inner thread which is preferably formed as a fine thread 17 .
  • the fine thread 17 only needs to be provided in the lower region of the casing wall 7 .
  • a guarantee strip 5 is integrally formed on the lower edge of the casing wall 7 via break-off webs 6 .
  • the guarantee strip 5 may be designed conically widening to the bottom as in the embodiments according to the FIGS. 1, 2 and 4 - 6 .
  • Such a design is aesthetically satisfactory and also has the advantage of an easy removal from the mold.
  • guarantee strips which are arranged aligned directly below the casing wall of the screw cap, with a guarantee strip of the shape shown, no rear-engagement is present. Accordingly, the core of the injection-molding tool may be withdrawn without at the same time loading the guarantee strip or in particular the break-off webs which represent the connection between the casing wall 7 and the guarantee strip 5 .
  • the guarantee strip 5 may however also be arranged running parallel to the axial direction of the rotary closure, as shown in FIG. 8 for example. With this arrangement, the guarantee strip 5 must be arranged displaced to the outside by at least the wall thickness of the screw cap.
  • the pour-out is always drawn as a separate part. This however is not necessary.
  • the pour-out may be manufactured as one piece with a plastic container.
  • the form of the pour-out shown here includes an annular wall 9 on whose lower end a flange 8 is integrally formed.
  • the flange 8 is arranged running perpendicular to the annular wall 9 .
  • An outer thread 10 is integrally formed on the outside on the annular wall 9 , which likewise is preferably designed as a fine thread. The thread 10 does not extend over the complete length of the annular wall 9 .
  • a positive-fit 11 is integrally formed between the outer thread 10 and the flange 8 arranged at the very bottom.
  • This positive-fit 11 in FIG. 2 has the shape of radial outwardly projecting cams 12 .
  • the guarantee strip 5 also comprises roughly equally large recesses 13 .
  • the cams 12 engage through the recesses 13 which here are designed as openings 15 .
  • the cams 12 engage through the same rear-engaging part 19 of the guarantee strip 5 , such as shown in FIG. 2 and in FIG. 6.
  • the positive-fit 11 may also be designed rib-like as shown in FIG. 3.
  • the ribs 16 run directed radially to the outside and parallel to the center axis of the pour-out 2 .
  • the ribs 16 which are accordingly considerably narrower than the cams 12 which were described and shown, are also in a positive-fit connection with the guarantee strip 5 of the screw cap 1 in the closed condition of the closure.
  • the positive fit 11 on the pour-out 2 in both embodiments is designed so that the lower edge of the screw cap 1 stands directly on the cap 12 or on the ribs 16 in the assembled condition.
  • the recesses 13 with their upper edge run in the separating plane T between the guarantee strip 5 and the lower edge of the casing wall 7 .
  • This design form serves directly as an abutment on assembly which will be discussed later.
  • FIGS. 7 and 8 Another embodiment is shown in the FIGS. 7 and 8.
  • the pour-out 2 is also formed as a separate part.
  • the flange 8 is clearly recognizable since the pour-out is shown as a top view.
  • the annular wall 9 is designed with its outer thread 10 at the very inside, which can be a fine thread with several flights.
  • the term fine thread is common in plastic technology and a person skilled in the art knows what this means, even though there is no direct definition.
  • a fine thread has a relatively low thread pitch which is smaller than a normal thread, as for example is generally known in the case of glass bottles.
  • the fine toothing 20 corresponds to the positive-fit 11 , for example in the form of cams 12 or ribs 16 as previously described.
  • the screw cap 1 which fits with this is designed accordingly. Its design form is shown in FIG. 8.
  • the screw cap 1 is designed with a casing wall 7 which is closed to the top by a cover surface 50 .
  • the closed, tab-free guarantee strip 5 via break-off webs 6 is integrally formed on the lower edge of the casing wall 7 displaced to the outside by the thickness of this casing wall 7 .
  • the guarantee strip 5 has a fine toothing 18 which in its notching corresponds to the fine toothing 20 on the pour-out 2 .
  • the inner thread formed as a fine thread 17 is arranged on the casing wall 7 .
  • the correction angle is only 3-6°.
  • the fine toothing which is practically equal to fluting may be provided at the lower edge of the guarantee strip with a type of run-in ramp 21 in order to simplify the running into one another.
  • Such an assembly is extraordinarily quick and the assembly device is accordingly simple and inexpensive. Because the screw cap closures are particularly used for containers of soft material, the batch numbers are extremely large.
  • the screw cap 1 On opening such a screw closure for the first time the screw cap 1 may only be rotated because immediately a shear force acts on the break-off webs 6 . This shear force occurs immediately without there previously having been effected a stretching of these break-off webs in their longitudinal direction.
  • the molecules running aligned in the break-off webs may be opened with relatively low force effort by way of the practically hundred percent occurring shear force. Older persons or children who do not have such strong hands can thus easily open the screw cap closures.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Package Frames And Binding Bands (AREA)
  • Belt Conveyors (AREA)
US10/415,873 2000-11-03 2001-10-30 Screw cap with a guarantee strip Abandoned US20040055990A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH2152/00 2000-11-03
CH21522000 2000-11-03
PCT/CH2001/000642 WO2002036451A1 (de) 2000-11-03 2001-10-30 Schraubkappe mit garantieband

Publications (1)

Publication Number Publication Date
US20040055990A1 true US20040055990A1 (en) 2004-03-25

Family

ID=4567719

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/415,873 Abandoned US20040055990A1 (en) 2000-11-03 2001-10-30 Screw cap with a guarantee strip

Country Status (6)

Country Link
US (1) US20040055990A1 (de)
EP (1) EP1339615B1 (de)
AT (1) ATE289951T1 (de)
AU (1) AU2001295365A1 (de)
DE (1) DE50105489D1 (de)
WO (1) WO2002036451A1 (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040040928A1 (en) * 2002-09-04 2004-03-04 Alto Plastics Limited Retained satellite ring cap and bottle assembly
US20050284837A1 (en) * 2004-06-18 2005-12-29 James Taber Composite closure with barrier end panel
US20070187352A1 (en) * 2005-12-28 2007-08-16 Stephen Kras Retortable package with plastic closure cap
US20090277860A1 (en) * 2006-10-23 2009-11-12 Werner Fritz Dubach Semi-finished product for producing an opening apparatus
DE102011006845A1 (de) * 2011-04-06 2012-10-11 Robert Bosch Gmbh Schraubverschluss mit Garantieband
US9611079B2 (en) * 2015-03-05 2017-04-04 Aptargroup, Inc. Fitment and overcap therefor
US11059633B2 (en) 2019-10-31 2021-07-13 Cheer Pack North America Flip-top closure for container

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006017259A1 (de) * 2006-04-12 2007-10-18 Terxo Ag Behälterverschluss mit Unversehrtheitsanzeiger
ITAR20090040A1 (it) * 2009-11-04 2011-05-05 Icm Macchine Divisione Della Silo S Pa Pinza per calettare tappi

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3650428A (en) * 1970-04-09 1972-03-21 V C A Corp Tamperproof closure device
US4722449A (en) * 1985-08-20 1988-02-02 Alfatechnic Ag Container closure with hinged cap and seal piercing means
US5213224A (en) * 1990-08-09 1993-05-25 Portola Packaging, Inc. Snap-on, screw-off cap and container neck
US5975321A (en) * 1990-08-09 1999-11-02 Portola Packaging, Inc. Snap-on, screw-off cap with tamper-evidencing skirt and container neck

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB809398A (en) * 1956-06-05 1959-02-25 Fapex Trust Reg Tamper-proof caps for bottles and other receptacles
FR1298166A (fr) * 1961-08-21 1962-07-06 Capsule vissable anti-fraude pour bouteilles
GB8305779D0 (en) * 1983-03-02 1983-04-07 Massmould Holdings Ltd Container and cap
JP3908301B2 (ja) * 1996-08-22 2007-04-25 日本クラウンコルク株式会社 合成樹脂製容器蓋及びこれと容器との組合せ

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3650428A (en) * 1970-04-09 1972-03-21 V C A Corp Tamperproof closure device
US4722449A (en) * 1985-08-20 1988-02-02 Alfatechnic Ag Container closure with hinged cap and seal piercing means
US5213224A (en) * 1990-08-09 1993-05-25 Portola Packaging, Inc. Snap-on, screw-off cap and container neck
US5975321A (en) * 1990-08-09 1999-11-02 Portola Packaging, Inc. Snap-on, screw-off cap with tamper-evidencing skirt and container neck

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040040928A1 (en) * 2002-09-04 2004-03-04 Alto Plastics Limited Retained satellite ring cap and bottle assembly
US20050284837A1 (en) * 2004-06-18 2005-12-29 James Taber Composite closure with barrier end panel
US20070187352A1 (en) * 2005-12-28 2007-08-16 Stephen Kras Retortable package with plastic closure cap
US8596477B2 (en) 2005-12-28 2013-12-03 Silgan White Cap LLC Retortable package with plastic closure cap
US20090277860A1 (en) * 2006-10-23 2009-11-12 Werner Fritz Dubach Semi-finished product for producing an opening apparatus
US8372328B2 (en) * 2006-10-23 2013-02-12 Deltona Innovations Ag Semi-finished product for producing an opening apparatus
DE102011006845A1 (de) * 2011-04-06 2012-10-11 Robert Bosch Gmbh Schraubverschluss mit Garantieband
US20140021158A1 (en) * 2011-04-06 2014-01-23 Robert Bosch Gmbh Screw-connection closure with tamperproof strip
US9611079B2 (en) * 2015-03-05 2017-04-04 Aptargroup, Inc. Fitment and overcap therefor
US10293988B2 (en) 2015-03-05 2019-05-21 Aptargroup, Inc. Fitment and overcap therefor
US11059633B2 (en) 2019-10-31 2021-07-13 Cheer Pack North America Flip-top closure for container

Also Published As

Publication number Publication date
WO2002036451A1 (de) 2002-05-10
ATE289951T1 (de) 2005-03-15
DE50105489D1 (de) 2005-04-07
EP1339615A1 (de) 2003-09-03
EP1339615B1 (de) 2005-03-02
AU2001295365A1 (en) 2002-05-15

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Legal Events

Date Code Title Description
AS Assignment

Owner name: TERXO AG, SWITZERLAND

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:DUBACH, WERNER FRITZ;REEL/FRAME:014641/0357

Effective date: 20030508

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION