WO2006013439A1 - Removable closing device for containers, particularly liquid food product containers, comprising a tampering indicator - Google Patents
Removable closing device for containers, particularly liquid food product containers, comprising a tampering indicator Download PDFInfo
- Publication number
- WO2006013439A1 WO2006013439A1 PCT/IB2005/002225 IB2005002225W WO2006013439A1 WO 2006013439 A1 WO2006013439 A1 WO 2006013439A1 IB 2005002225 W IB2005002225 W IB 2005002225W WO 2006013439 A1 WO2006013439 A1 WO 2006013439A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- neck
- cap
- tab
- tooth
- container
- Prior art date
Links
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
- B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
- B65D5/42—Details of containers or of foldable or erectable container blanks
- B65D5/72—Contents-dispensing means
- B65D5/74—Spouts
- B65D5/746—Spouts formed separately from the container
-
- 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
- B65D2401/20—Frangible elements completely enclosed in closure skirt
Definitions
- the present invention relates to a removable closing device for containers, in particular liquid food product containers, comprising a tampering indicator. More specifically, the invention relates to a screw cap/threaded neck type device which is easy to produce and assemble, and wherein the tampering indicator is easy to produce and compact.
- pull-off caps do not always safeguard against leakage of the liquid food product, and are not always resealable in fluidtight manner; while screw caps are either combined with a shear-off, e.g. pull-off or pierceable, seal, which increases production cost, or are provided with a blocking ring device which is sheared when the container is opened for the first time. In the latter case, however, the caps must be screwed or forced by deformation onto the necks, thus increasing assembly cost. Moreover, the devices described are relatively bulky.
- a removable closing device for containers particularly liquid food product containers, which is fast and easy to use; is fast, easy and cheap to assemble; is cheap to produce; is compact and highly reliable; is capable of withstanding repeated opening/closing, while still ensuring excellent fluidtight sealing and so safeguarding against contamination or leakage of the liquid food product; and can be clicked on, while still effectively indicating unsealing of the container.
- a removable closing device for a container in particular a liquid food product container, as claimed in Claim 1. More specifically, the closing device according to the invention comprises a cap and a neck connectable to each other by means of respective threaded coupling portions.
- the cap is cup-shaped, and comprises: a sleeve portion, in turn comprising a said coupling portion and an end collar facing the neck in use; and a tampering indicator. Between said coupling portion and the collar, weakening means are provided to weaken the sleeve portion and permit, in use, elastic radial deformation of at least said coupling portion such that the cap, at least for its first insertion onto the neck, can be clicked onto the neck.
- the tampering indicator comprises shear-off stop means which, in use and upon attempted removal of the cap from the neck, cooperate with and are sheared by mating stop means on the neck.
- the weakening means comprise at least two circumferential slits formed through part of the axial extension of the end collar; and the shear-off stop means comprise one or two flexible tabs formed in one piece with the end collar and projecting inside one or both said slits; each tab having a stop tooth on its free end.
- the neck comprises a first end portion with fastening means for attachment to the container; and a second end portion facing the cap in use. Between said first and second end portion, at least one annular projection is provided, of such a radial height as to interfere radially with the tooth of each said tab.
- the container when assembling the closing device according to the invention onto the container, the container can be fitted with the cap and the neck connected to each other in a preseal position, i.e. with the threaded portion of the cap partly force-fitted onto the corresponding threaded portion of the neck; and the cap can subsequently be set to a fully-sealed, perfectly fluidtight position by simply pressing the cap axially to force-fit it onto the neck (which can be done easily using automatic assembly means) .
- the coupling portion of the cap is flexible radially outwards, so that the cap can first be assembled in the preseal position, and then forced to click into the fully-sealed position.
- the tabs flex radially outwards to get past the annular projection (particularly if the respective teeth have lead-ins)
- the tabs when unsealing the cap - whether this is done by unscrewing or axially removing the cap off the neck - the tabs flex radially inwards and "jam" against the annular projection until their ultimate break load is reached.
- the tabs are sheared to allow removal of the cap, while at the same time indicating tampering (i.e. that the container has been unsealed due to a first opening thereof after packaging) .
- Figure 1 shows a side view of a container closing device in accordance with the invention and fitted to a known bag container shown only partly in section for the sake of simplicity;
- Figure 2 shows a section, along line II-II, of the Figure 1 closing device in a fully-sealed operating position
- Figure 3 shows a section, at roughly 120° with respect to line II-II, of the Figure 1 device in a second preseal or preassembly operating position.
- number 1 indicates as a whole a removable closing device for a container 2
- FIG. 1 in particular a liquid food product container.
- Container 2 e.g. a "bag” type container, is widely known in the industry and therefore not described for the sake of simplicity.
- Device 1 comprises a neck 3 fixable in known and fluidtight manner to container 2; and a removable cap 4 fixable removably and in fluidtight manner to neck 3.
- neck 3 fixable in known and fluidtight manner to container 2; and a removable cap 4 fixable removably and in fluidtight manner to neck 3.
- cap 4 and neck 3 have mating, inclined-surface coupling means enabling removal, by- simultaneous rotation and translation, of cap 4 off neck 3.
- the mating, inclined-surface coupling means comprise, for example, screw/nut screw means described in detail below, but which may obviously be replaced by other inclined-surface coupling means, such as bayonet coupling means.
- cap 4 is cup-shaped, and comprises: a sleeve portion 5, in turn comprising a coupling portion 6 and an end collar 7 facing neck 3 in use; and a tampering indicator indicated as a whole by 10
- weakening means 21 are provided between coupling portion
- cap 6 and end collar 7 to weaken sleeve portion 5 of cap 4 and to permit, in use, elastic radial deformation of at least coupling portion 6, so that cap 4, at least the first time it is inserted onto the neck, can be clicked onto neck 3.
- tampering indicator 10 comprises shear-off stop means 11 which, in use and upon attempted removal of cap 4 from neck 3, cooperate with and are sheared by mating stop means 12 on neck 3.
- coupling portion 6 of sleeve portion 5 of cap 4 is an internally threaded nut screw portion.
- neck 3 comprises a first end portion 31 with fastening means 38 (e.g. a flange) for attachment to container 2; and a second end portion 32 ( Figures 2 and 3) opposite 31 and facing cap 4 in use, and which is defined by a hollow, externally threaded, tubular screw portion bounded by a substantially smooth inner lateral wall 33.
- At least one annular projection is located between end portions 31 and 32, and in use constitutes said stop means 12, as described in detail below.
- said weakening means comprise at least two circumferential slits 21 formed through sleeve portion 5 of cap 4, for a predetermined angular and axial extent between coupling portion 6 and collar 7.
- Circumferential slits 21 are diametrically symmetrical, and have preferably the same angular extent, e.g. may be four in number, spaced 90° apart.
- shear-off stop means 11 comprise at least one elastically deformable tab 22 formed in one piece with end collar 7 and projecting inside a respective circumferential slit 21a having a greater axial extent than the other slits 21, as described in detail below; and a tooth 23 formed on a free end of tab 22.
- shear-off stop means 11 comprise two tabs 22, each having a tooth 23 on its free end, and each projecting inside a respective circumferential slit 21a diametrically opposite the other. Tooth 23 of each tab 22 projects radially from tab 22 towards neck 3, and annular projection 12 formed on neck 3 is of such a radial height as to interfere radially, in use, with tooth 23 of each tab 22.
- circumferential slits 21a inside which tabs 22 project, are formed along the axial extension of collar 7 only, and along a longer portion of it than the other slits 21, so that, when cap 4 is in a fully-sealed position (Figure 2) on neck 3, tooth 23 of each tab 22 is located past annular projection 12 (i.e. on the side facing flange 38) , which therefore constitutes said mating axial stop means when cap 4 is moved into an unsealing position or even only a partial unsealing position ( Figure 3) . Tooth 23 of each tab 22 has a lead-in, so that, when cap 4 is moved with respect to neck 3 into said fully- sealed position in Figure 2, tooth 23 forces respective tab 22 to flex radially outwards.
- teeth 23 have perpendicular stop surfaces 40 ( Figure 2) , so that, when the cap is moved into the partial unsealing position in Figure 3, i.e. to remove cap 4 from neck 3, teeth 23 come to rest axially against annular projection 12, thus arresting the movement of the cap into the unsealing position, until the respective tabs break, which preferably occurs at weakened root portions 45 of the tabs (shown by the dash lines in Figure 1) .
- Cap 4 comprises a top wall 50, from which a cylindrical projection 51 and a tubular sleeve 52 ( Figures 2 and 3) project sequentially inside and coaxially with sleeve portion 5.
- Cylindrical projection 51 is larger in diameter than the inside diameter of tubular screw portion 32 of neck 3, so that an edge 53 of cylindrical projection 51 defines an axial stop to arrest cap 4 on neck 3; and
- tubular sleeve 52 has an outside diameter smaller than the diameter of cylindrical projection 51, so as to mate in fluidtight manner with inner lateral wall 33 of tubular screw portion 32 of neck 3.
- tubular sleeve 52 of cap 4 or inner lateral wall 33 of tubular screw portion 32 of neck 3 has static sliding sealing means, e.g. projections 55, and/or one or more 0-rings 56 (shown by the dash line in Figure 2) are provided between tubular sleeve 52 and inner lateral wall 33.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Closures For Containers (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05767716A EP1799568A1 (en) | 2004-07-30 | 2005-07-27 | Removable closing device for containers, particularly liquid food product containers, comprising a tampering indicator |
US11/572,953 US20080105642A1 (en) | 2004-07-30 | 2005-07-27 | Removable Closing Device for Containers, Particularly Liquid Food Product Containers, Comprising a Tamprering Indicator |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT000538A ITTO20040538A1 (en) | 2004-07-30 | 2004-07-30 | REMOVABLE CLOSING DEVICE FOR CONTAINERS, IN PARTICULAR CONTAINERS FOR LIQUID FOOD, INCLUDING A TAMPERING INDICATOR. |
ITTO2004A000538 | 2004-07-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006013439A1 true WO2006013439A1 (en) | 2006-02-09 |
Family
ID=35207636
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB2005/002225 WO2006013439A1 (en) | 2004-07-30 | 2005-07-27 | Removable closing device for containers, particularly liquid food product containers, comprising a tampering indicator |
Country Status (4)
Country | Link |
---|---|
US (1) | US20080105642A1 (en) |
EP (1) | EP1799568A1 (en) |
IT (1) | ITTO20040538A1 (en) |
WO (1) | WO2006013439A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EA201001510A1 (en) * | 2008-03-18 | 2011-02-28 | Ехад Айсх | SCREW PLUG FOR BOTTLES |
US11059633B2 (en) | 2019-10-31 | 2021-07-13 | Cheer Pack North America | Flip-top closure for container |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3531508A1 (en) * | 1985-09-04 | 1987-03-12 | Saier E Kunststoffwerk Gmbh | Screw closure cap, in particular made of plastic, for bottles, beakers or the like |
US4726482A (en) * | 1987-03-27 | 1988-02-23 | Owens-Illinois Closure Inc. | Tamper indicating package and molded plastic closure therefor |
GB2223748A (en) * | 1988-09-09 | 1990-04-18 | Metal Closures Group Ltd | Closures |
EP0435279A2 (en) * | 1989-12-28 | 1991-07-03 | Toppan Printing Co., Ltd. | Pouring plug for liquid paper-containers |
WO1995014617A1 (en) * | 1993-11-29 | 1995-06-01 | Metalfin S.R.L. | Screw closure made of moulded synthetic resin with tamperproof seal |
US20010015341A1 (en) * | 1999-10-26 | 2001-08-23 | Phillip Higgins | Tamper evident closure |
US20030217987A1 (en) * | 2002-05-21 | 2003-11-27 | Pehr Harold T. | Tamper indicating closure |
WO2004022443A1 (en) * | 2002-08-14 | 2004-03-18 | Georg Menshen Gmbh & Co. Kg | Sealing/pouring combination with security seal |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4380304A (en) * | 1981-08-05 | 1983-04-19 | Anderson George C | Container having an integral handle an a closure |
US4401227A (en) * | 1981-08-17 | 1983-08-30 | Pehr Harold T | Tamper indicating closure cap |
US5152438A (en) * | 1990-07-12 | 1992-10-06 | International Paper Company | Pour spout construction |
US5348183A (en) * | 1991-03-05 | 1994-09-20 | Portola Packaging, Inc. | Tamper-evident, initially unitary, fitment and closure |
JP2003261155A (en) * | 2002-03-04 | 2003-09-16 | Alcoa Closure Systems Japan Ltd | Synthetic resin cap |
-
2004
- 2004-07-30 IT IT000538A patent/ITTO20040538A1/en unknown
-
2005
- 2005-07-27 EP EP05767716A patent/EP1799568A1/en not_active Withdrawn
- 2005-07-27 US US11/572,953 patent/US20080105642A1/en not_active Abandoned
- 2005-07-27 WO PCT/IB2005/002225 patent/WO2006013439A1/en active Application Filing
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3531508A1 (en) * | 1985-09-04 | 1987-03-12 | Saier E Kunststoffwerk Gmbh | Screw closure cap, in particular made of plastic, for bottles, beakers or the like |
US4726482A (en) * | 1987-03-27 | 1988-02-23 | Owens-Illinois Closure Inc. | Tamper indicating package and molded plastic closure therefor |
GB2223748A (en) * | 1988-09-09 | 1990-04-18 | Metal Closures Group Ltd | Closures |
EP0435279A2 (en) * | 1989-12-28 | 1991-07-03 | Toppan Printing Co., Ltd. | Pouring plug for liquid paper-containers |
WO1995014617A1 (en) * | 1993-11-29 | 1995-06-01 | Metalfin S.R.L. | Screw closure made of moulded synthetic resin with tamperproof seal |
US20010015341A1 (en) * | 1999-10-26 | 2001-08-23 | Phillip Higgins | Tamper evident closure |
US20030217987A1 (en) * | 2002-05-21 | 2003-11-27 | Pehr Harold T. | Tamper indicating closure |
WO2004022443A1 (en) * | 2002-08-14 | 2004-03-18 | Georg Menshen Gmbh & Co. Kg | Sealing/pouring combination with security seal |
Also Published As
Publication number | Publication date |
---|---|
US20080105642A1 (en) | 2008-05-08 |
ITTO20040538A1 (en) | 2004-10-30 |
EP1799568A1 (en) | 2007-06-27 |
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