[go: up one dir, main page]

WO1997003889A1 - Capsule inviolable pour bouteille - Google Patents

Capsule inviolable pour bouteille Download PDF

Info

Publication number
WO1997003889A1
WO1997003889A1 PCT/US1996/012112 US9612112W WO9703889A1 WO 1997003889 A1 WO1997003889 A1 WO 1997003889A1 US 9612112 W US9612112 W US 9612112W WO 9703889 A1 WO9703889 A1 WO 9703889A1
Authority
WO
WIPO (PCT)
Prior art keywords
cap
band
bottle
ring section
ring
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.)
Ceased
Application number
PCT/US1996/012112
Other languages
English (en)
Inventor
Charles Hannon
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.)
Individual
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
Priority to AU65939/96A priority Critical patent/AU6593996A/en
Publication of WO1997003889A1 publication Critical patent/WO1997003889A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • 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

  • This invention relates to plastic "pilfer-proof" screw-on bottle caps and in particular plastic bottle caps which have a ring which is totally or partially separable from the cap, as an indication of tampering.
  • Plastic bottle tops While considerably more economical to manufacture and use, compared to metal caps, nonetheless provide unique problems which result from limitations in molding and forming. Whereas metal caps can be formed directly on the bottles into a shape requiring destructive and tamper evident removal, plastic caps are typically molded, into form, separately before being placed on the bottles. As a result, the cap seating procedure can, by diligent tampering, be reversed without evidence of such reversal.
  • plastic cap configurations with tamper evident "pilfer-proofs" have been utilized to minimize the ability to reverse the seating procedures without evidence of tampering.
  • the ring section has inwardly extending molded hooks, circumferentially positioned at the edge of the ring section distal to the cap.
  • the hooks are caused to collapse and fold outwardly into a recess, by being cammed by a radially extending bead of the bottle thereby permitting them to pass the bead.
  • the free ends of the hook pass the bead, they spring back to engage the lower surface of the bead, thereby preventing upward movement of the ring together with removal of the bottle cap.
  • the frangible bridges break under continued removal forces, i.e., unscrewing of the cap, thereby causing the ring to become detached as an indication of tampering.
  • caps In the construction of certain caps it may be desirable to form the caps of a relatively softer and more easily stretchable material than polypropylene or nylon, such as polyethylene.
  • a sealable material such as polyethylene is utilized.
  • advantages of using polyethylene are accompanied by the drawback of softer hooks which are more readily disengaged. Because of the relative elasticity of the polyethylene cap material it may be possible for a dexterous tamperer to cause disengagement between the hooks and the bottle bead by first tightening the cap on the bottle to disengage the hooks from contact with the bead.
  • the lower end of the ring, at the point of attachment to the hooks, is carefully squeezed inwardly and slightly upwardly. Since the material is relatively more stretchable, the hooks can be more readily made to swivel outwardly away from the edge of the bead.
  • the cap can then be slipped off the bottle, with the hooks sliding past the edge of the bead, without formation of the tell-tale separated ring.
  • materials such as polyethylene or even thinned polypropylene, disengagement of the hooks from the bead is also possible even spontaneously as a result of the ring of the pilfer proof being susceptible to stretching and outward expansion, under heated conditions and even aggressive squeezed opening of the bottle.
  • Figure 1 is a cross section view of the cap of the present invention showing the retaining hooks in relative position to a bottle upon which it is being placed;
  • Figure 2 is an expanded view of area A of Figure 1, showing the hook and the relative positioning of the circumferential band;
  • Figure 3 is a bottom view of the cap showing the open end of the cap and the peripherally surrounding hooks and circumferential band of Figure 1 and 2.
  • Figure 4 is a second embodiment of the present invention showing an interrupted circumferential band;
  • Figure 5 is a cross section view of a prior art cap in the process of being removed, with the cap being canted and with failure to break all the bridges; and Figure 6 shows a cross section view of the cap of the present invention being similarly removed, with substantially reduced incidence of canting and with breakage of all the bridges.
  • the present invention comprises a plastic pilfer-proof cap for a bottle having a screw thread adjacent its open end and a circumferential retaining bead below the screw thread, away from the open end of the bottle.
  • the cap is comprised of a cap section having an open end adapted to be threaded on the screw thread of the bottle, and a ring section attached to the open end of the cap section by one or more frangible bridges therebetween.
  • the ring section (or pilfer proof indicator) has a plurality of circumferentially placed hook elements having free ends which extend inwardly and upwardly. The hook elements are integrally molded with the ring section at the edge of the ring section distal from the bridge portion.
  • the ends of the hook elements which are integrated with the ring section, function as hinges whereby the hook elements are adapted to hingedly move to adjacently pass over the screw thread and retaining bead of the bottle when the cap is initially threaded on the bottle.
  • the free ends of the hook elements are further adapted to engage a lower peripheral surface of the retaining bead, whereby unscrewing of the cap from the bottle causes the one or more frangible bridges to break.
  • a separately definable circumferential reinforcing band is positioned peripherally around the exterior of the ring section, at the edge of the ring section distal from the bridge portion, and in concentric registration with the hinges of the hook elements.
  • the reinforcing band is integrated with the ring section, with a first portion of the band extending below the level of the hinges (beyond the edge of the ring, if the hinges depend directly from the lower edge of the ring) and with a second portion of the band being integrated with the exterior of the ring section and extending from the level of the hinges, on the ring section for a distance at least half the vertical height of the hook element adjacent thereto and up to about the full vertical height of the hook element adjacent thereto.
  • the circumferential band provides resistance or hoop forces sufficient to maintain said hooks against the retaining bead.
  • the adjacent section of the ring section is thickened relative to the remaining portions of the ring section, such structures are relatively ineffective in preventing detrimental outward expansion and disengagement of the hooks from the bottle bead.
  • a band as in the present invention, with its positioning relative to the hinges of the hook and the height of the hook itself, there is a tendency for the ring section to distally swivel outwardly (pivoting on the adjacent non-thickened portion) which permits hook disengagement.
  • the give of the hooks absent the reinforcement band of the present invention, permits the ring section to slide inward, underneath the bottle bead, to at least partially relieve bridge breaking pressure on the bridges diagonally opposite thereto causing bridge breakage failure.
  • the separately definable band is preferably solid to provide maximum hoop strength reinforcement but adequate reinforcement, though not of a hoop strength reinforcing nature and degree, may also be obtained with a band having interruptions.
  • the thickness of the integrated reinforcement band relative to the thickness of ring section, upon which the hooks are dependent is generally determined to be dependent upon the elasticity of the material being used. Thus, for thicker ring sections and with less elastic materials such as nylon and polypropylene, the band may be thinner and for thinner ring sections and more elastic materials such as polyethylene the band should be thicker.
  • the thickness of the reinforcing band is at least 25% of the thickness of the adjacent ring section in order to minimally effectively prevent stretching disengagement of the hooks from a bottle bead and/or canting with bridge breakage pressure relief.
  • the width of the band should be sufficient to peripherally be concentrically adjacent a substantial (at least half and more preferably 75%) , if not complete, vertical height of the adjacent hook.
  • the band should also extend beyond the base of the hook (or hinge) , at the peripheral edge of the ring section, preferably for a distance at least one quarter that of the vertical height of the adjacent hook.
  • a bottle cap generally designated as 10, is shown with threads 11, adapted for screw-on engagement with threads 21 of bottle top 20.
  • eight hooks 12a-h extend inwardly from the distal end of pilfer proof ring section 10a.
  • the pilfer proof ring section 10a is attached to cap section 10b by integrally molded frangible bridges 10c.
  • circumferential band 30 completely circumferentially encloses the end of the ring section 10a, at the points where the hooks 12a-h are supportingly extending.
  • Band 30 is separately defined from ring section 10a, though integrated therewith, and lies outside of the plane of the ring section 10a.
  • segment 30a of band 30 extends beyond the unattached periphery of the ring section 10a in the form of a cantilevered hoop.
  • Segment 30b of band 30, integrated with ring section 10a is adjacently opposite a substantial portion of the height of the adjacent hooks 12a-h.
  • band 30' With interruptions 31, provides a similar resistance against the moving the hooks away from engagement with bottle bead 22, but of a lesser extent as compared to the full hoop strength resistance of band 30 in Figures 1-3.
  • the effects of screw cap removal as shown in Figure 5, with respect to the prior art cap 10', are also negated with the reinforcing band of the present invention. As shown, the

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)

Abstract

Capsule inviolable (10) en plastique constituée d'un bouchon (10b) possédant une extrémité ouverte conçue pour être vissée sur le filetage d'une bouteille et un anneau (10a) fixé de manière articulée à l'extrémité ouverte du bouchon par un ou plusieurs ponts frangibles (10c). L'anneau présente à sa circonférence une pluralité de crochets (12a-h) comportant des extrémités libres s'étendant vers l'intérieur et vers le haut, de façon à venir au contact d'une moulure de retenue sur le col de la bouteille, le dévissage du bouchon provoquant la rupture des ponts frangibles. Une bande de renforcement circonférentielle distincte (30) est positionnée en périphérie à l'extérieur de l'anneau, de façon que les forces de serrage soient suffisantes pour maintenir les crochets contre la moulure de retenue et pour garantir la rupture totale de tous les ponts.
PCT/US1996/012112 1995-07-21 1996-07-22 Capsule inviolable pour bouteille Ceased WO1997003889A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU65939/96A AU6593996A (en) 1995-07-21 1996-07-22 Pilfer-proof bottle cap

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US50560295A 1995-07-21 1995-07-21
US08/505,602 1995-07-21

Publications (1)

Publication Number Publication Date
WO1997003889A1 true WO1997003889A1 (fr) 1997-02-06

Family

ID=24011024

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1996/012112 Ceased WO1997003889A1 (fr) 1995-07-21 1996-07-22 Capsule inviolable pour bouteille

Country Status (2)

Country Link
AU (1) AU6593996A (fr)
WO (1) WO1997003889A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1354811A3 (fr) * 2002-02-22 2005-08-24 Owens-Illinois Closure Inc., Fermeture inviolable et emballage
WO2020126925A1 (fr) * 2018-12-19 2020-06-25 Bericap Holding Gmbh Fermeture avec stabilisation de la bande d'inviolabilité

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2987206A (en) * 1959-03-30 1961-06-06 Grussen Jean Plastic cap for containers
US3915330A (en) * 1973-02-26 1975-10-28 Mauser Kg Lid type drum
FR2490598A1 (fr) * 1980-09-23 1982-03-26 Cebal Capsule en plastique vissee inviolable
US4658976A (en) * 1983-04-15 1987-04-21 Aluminum Company Of America Lined plastic closure
US4749095A (en) * 1987-05-28 1988-06-07 Owens-Illinois Closure Inc. Tamper-indicating closure and package
US5090788A (en) * 1989-07-27 1992-02-25 Owens-Illinois Closure Inc. Tamper indicating package

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2987206A (en) * 1959-03-30 1961-06-06 Grussen Jean Plastic cap for containers
US3915330A (en) * 1973-02-26 1975-10-28 Mauser Kg Lid type drum
FR2490598A1 (fr) * 1980-09-23 1982-03-26 Cebal Capsule en plastique vissee inviolable
US4658976A (en) * 1983-04-15 1987-04-21 Aluminum Company Of America Lined plastic closure
US4749095A (en) * 1987-05-28 1988-06-07 Owens-Illinois Closure Inc. Tamper-indicating closure and package
US5090788A (en) * 1989-07-27 1992-02-25 Owens-Illinois Closure Inc. Tamper indicating package

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1354811A3 (fr) * 2002-02-22 2005-08-24 Owens-Illinois Closure Inc., Fermeture inviolable et emballage
WO2020126925A1 (fr) * 2018-12-19 2020-06-25 Bericap Holding Gmbh Fermeture avec stabilisation de la bande d'inviolabilité

Also Published As

Publication number Publication date
AU6593996A (en) 1997-02-18

Similar Documents

Publication Publication Date Title
US5080246A (en) Closure having a spring open tamper evidencing band
US6276543B1 (en) Vented composite closure
US4978016A (en) Tamper indicating closure having retaining hoop with relief windows
US5853095A (en) Tamper evident splitting closure
CA1286631C (fr) Emballage temoin de viol
CA1316492C (fr) Fermeture inviolable
EP0489865B1 (fr) Moyen de fermeture revelant toute tentative d'effraction et muni d'un anneau de blocage perce d'orifices pour le relachement de la pression
KR100436168B1 (ko) 고정밴드를갖는개봉사실확인마개
US5107998A (en) Tamper proof ring for threaded closures
US4966292A (en) Cap and neck finish for a wide mouth container
US6213321B1 (en) Threaded closure for pressurized containers
US4534481A (en) Snap-on, tamper-evident container closure
US5341949A (en) Press-on pry-off closure
AU2003302391B2 (en) Tamper evident closure with locking band
JPH09501636A (ja) 容器用の裏当てなし栓
WO1995035245A1 (fr) Capuchon a charniere avec une structure permettant de voir si le capuchon a ete ouvert
JPH06255661A (ja) 不正開封表示蓋
JPH0624458A (ja) 不正表示プラスチック閉鎖体
US5950849A (en) Container closure with ribbed enlarged grasping region
US6116442A (en) Tamper indicating closure
US5145078A (en) Pilfer-proof bottle cap
EP0544797B1 (fr) Fermeture de recipient indicatrice de tentatives d'ouverture frauduleuse, comportant un anneau de retenue avec des fenetres de decharge
US4354610A (en) Reusable container closure cap
US20010030164A1 (en) Tamper-proof bottle cap
WO1998046492A1 (fr) Capsule de bouteille en plastique amelioree

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AT AU BB BG BR BY CA CH CN CZ DE DK ES FI GB GE HU IL JP KR LU MX NO NZ PL PT RO RU SE SG UA VN

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase
REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

NENP Non-entry into the national phase

Ref country code: CA