EP0094026B1 - Sicherheitsverschluss für Getränke - Google Patents

Sicherheitsverschluss für Getränke Download PDF

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Publication number
EP0094026B1
EP0094026B1 EP19830104390 EP83104390A EP0094026B1 EP 0094026 B1 EP0094026 B1 EP 0094026B1 EP 19830104390 EP19830104390 EP 19830104390 EP 83104390 A EP83104390 A EP 83104390A EP 0094026 B1 EP0094026 B1 EP 0094026B1
Authority
EP
European Patent Office
Prior art keywords
cover
liner
skirt
cap
sealing
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
Application number
EP19830104390
Other languages
English (en)
French (fr)
Other versions
EP0094026A2 (de
EP0094026A3 (en
Inventor
Emile L. Munch
Carl E. Koontz
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.)
Anchor Hocking LLC
Original Assignee
Anchor Hocking LLC
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=23480982&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0094026(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Anchor Hocking LLC filed Critical Anchor Hocking LLC
Publication of EP0094026A2 publication Critical patent/EP0094026A2/de
Publication of EP0094026A3 publication Critical patent/EP0094026A3/en
Application granted granted Critical
Publication of EP0094026B1 publication Critical patent/EP0094026B1/de
Expired 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
    • B65D53/00—Sealing or packing elements; Sealings formed by liquid or plastics material
    • 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

Definitions

  • the invention relates to a generally cylindrical molded plastic closure cap for sealing a threaded container with high pressure contents and having a disc-like cover with a depending generally cylindrical skirt with container engaging threads on said skirt, a radially inwardly extending circular bead being positioned on said skirt between said cover and said threads forming a liner retaining groove and disk-like flowed-in plastic sealing liner being positioned on the underside of said cover and with its outer edge occupying said groove.
  • Caps of this type are known from EP-A-22 991.
  • the prior art closure caps include a thin rib for holding a sealing liner on the underside of the cap cover. The thin rib engages the closure rim of the container and thus flexes in an undesirable manner.
  • closure cap as defined in claim 1.
  • This invention relates to a unitary molded plastic closure cap which is applied to filled bottles or similar containers on high speed automatic sealing machines and which provides a satisfactory seal even at high pressures.
  • Prior tamperproof closures of this general type include metal closure caps such as aluminum caps where there is a cup-like sealing portion of the cap and usually an attached tamper indicating ring. These prior caps are applied to the filled bottles with complicated automatic machinery which applies the caps and which then must also crimp or otherwise deform the metal cap shells to interlock the tamper indicating band.
  • the present invention substitutes a unitary molded plastic cap for the metal closure and provides for both the sealing cup-like cap portion and when desired a unitary tamperproof or tamper indicating band.
  • a characteristic of the presently used metal caps is their ability to be applied to filled containers on high speed automatic sealing machinery.
  • the closure cap of the present invention also has this advantage and provides for a high speed and low cost sealing machine application while at the same time providing a simple low cost plastic closure cap useful for high pressure sealing.
  • the closure cap 1 as illustrated includes a sealing means or liner 2 on the underside of the cap cover 3 for forming a tight seal between the cap 1 and the upper surface 4 of the bottle 5 finish 6.
  • a tamperproofing band 7 is attached to the lower edge of the cap skirt 10 by a number of relatively thin and rupturable bridges 9.
  • the bridges 9 hold the tamper indicating band 7 onto the sealing portion of the closure 1 during cap application and sealing until the bottle is opened for use and while remaining unruptured indicate that the cap seal has not been tampered with.
  • the closure cap may also be used without a tamper indicator in which case the band is eliminated from the cap and the cap forming die.
  • the closure cap 1 has the molded cup-like sealing and bottle engaging portion comprising the cover 3 and a depending skirt 10.
  • the skirt 10 includes container engaging threads 11 on its inner surface and preferably has knurls 12 on its outer surface to facilitate cap removal.
  • the cap 1 is formed of suitable plastic such as polypropylene, polyethylene, polystyrene or similar plastics.
  • the sealing liner 2 is preferably flowed in so that it covers the underside of the cap cover 3 and has a thickened outer edge 14 in inter-locking engagement with a channel 15 formed at the corner between the cap cover 3 and the cap skirt 10.
  • the lower side 16 of the channel 15 is the upper surface 17 of a circular bead 18.
  • the bead 17 preferably has a generally triangular cross- section with its inner-most edge or apex 18 being rounded in the form of a radius and with its upper liner engaging surface 17 forming about a 30 degree angle with the horizontal.
  • the properties of the preferred sealing liner 2 plastic which is polyvinylchloride or PVC, as it is flowed into a rotating closure 1 by a nozzle 21 (Fig.
  • Fig. 2 illustrates the sealing liner 2 of the closure cap 1 in engagement with the rim 4 of a sealed bottle 5.
  • the bottle rim 4 has penetrated into the liner 2 causing an extrusion or build-up of the liner sealing portion around both the outer and inner edges 19 and 20 of the bottle rim 4.
  • This inter-action between the liner 2 and the bottle 5 at the channel 15 perfects the seal between the liner 2 and the bottle rim 4 and forms tight seals which are effective even for relatively high pressures within the sealed bottles such as is the case with beers and sodas.
  • the closure cap may be used with a tamper indicating band or without such a band.
  • Figs. 1-3 illustrate one form of band which includes the container engaging band 7 and which has a number of bridges or gates 9 which attach the band 7 to the cap skirt 10. When the cap is removed from the bottle 5 this band tears loose and remains on the bottle 5 indicating that the cap has been turned upwardly.
  • band 22 (Fig. 4) on a cap 23 has a strapping action which insures the retention of the tamper indicating band 22 on a bottle.
  • Two diametrically spaced lugs 24 on the band 22 hold the band on the bottle and provide a strapping action on removal in combination with a pair of bridge groups 25 each about 90° displaced from the lugs 24.
  • Figs. 6 and 7 illustrate an improved embodiment of a strapping type of tamper indicating band 26 on a cap 27.
  • the band 26 includes approximately diametrically spaced lugs 28 to provide the strapping forces.
  • the band 26 has several bridges 29 positioned about 90° away from the lugs 28 and a stronger bridge or hinge 30 positioned approximately diametrically opposite to the bridge 29.
  • a notch 31 is provided in the band 26 adjacent to the hinge 30.
  • a removal of the cap 27 first snaps the band 26 at the notch 31 and then tears the bridges 28. This gives an immediate indication of closure tampering.
  • the hinge 30 does not tear but remains intact lifting the tamper band 26 off of the bottle with the closure cap 27.
  • Such a removable band is desired for certain sealing applications.

Landscapes

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

Claims (1)

  1. Allgemein zylindrisch geformte Verschlußklappe (1) aus Kunststoff zum Verschließen eines mit einem Gewinde versehenen, einer unter hohem Druck stehenden Inhalt enthaltenden Behälters (5) mit einem scheibenartigen Deckel (3) und mit einem allgemein zylindrischen, nach unten ragenden Mantel (10) mit auf den Behälter einwirkenden Schraubengängen (11) an dem Mantel, einem radical nach innen ragenden kreisförmigen Wulst (18), der zwischen dem Deckel (3) und den Gewindegängen (11) an dem Mantel (10) angebracht ist und eine Belaghaltenut (15) bildet, und einem scheibenartigen, eingegossenen, aus Kunststoff bestehenden Abdichtbelag (2) an der Unterseite des Deckels (3), der seine größte Dicke an der Außenkante aufweist, damit eine Ober-und Seitendichtung mit dem Behälter entsteht und im wesentlichen die gesamte Nut (15) besetzt wird, dadurch gekennzeichnet, daß der Wulst (18) einen allgemein dreieckigen Querschnitt hat, dessen Basis an dem Mantel (10) die Dreieckshöhe bezüglich der radialen Dimension überschreitet, wobei der Dreieckscheitel eine kreisförmige Gestalt in Form eines Radius hat und die oberste Fläche (17) des Wulsts (18) mit dem Deckel einen Winkel von etwa 30° bildet, damit das Abziehen von der Form und das Festhalten des Belags erleichtert werden, und daß der Belag (2) bezüglich des Deckels (3) der Verschlußkappe radial nach inner eine zunehmend geringere Dicke aufweist, wobei die minimale Dicke etwa die Hälfte der größten Dicke beträgt.
EP19830104390 1982-05-06 1983-05-04 Sicherheitsverschluss für Getränke Expired EP0094026B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US37546082A 1982-05-06 1982-05-06
US375460 1982-05-06

Publications (3)

Publication Number Publication Date
EP0094026A2 EP0094026A2 (de) 1983-11-16
EP0094026A3 EP0094026A3 (en) 1985-04-10
EP0094026B1 true EP0094026B1 (de) 1988-08-10

Family

ID=23480982

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19830104390 Expired EP0094026B1 (de) 1982-05-06 1983-05-04 Sicherheitsverschluss für Getränke

Country Status (4)

Country Link
EP (1) EP0094026B1 (de)
AU (1) AU570408B2 (de)
CA (1) CA1247555A (de)
DE (1) DE3377637D1 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58502165A (ja) * 1981-12-23 1983-12-15 アンステイテユ・パストウ−ル 特異抗体により認識し得る修飾核酸プローブを使用して核酸配列の存在を検出する方法
US4572387A (en) * 1985-03-01 1986-02-25 Sunbeam Plastics Corporation Screw-type safety cap
AU6757187A (en) * 1986-01-22 1987-07-23 Retief, C.T. Closure for a container
US4700860A (en) * 1986-03-31 1987-10-20 Owens-Illinois, Inc. Tamper indicating vacuum package
GB8622252D0 (en) * 1986-09-16 1986-10-22 Nat Plastics Ltd Container closure
DK0451102T3 (da) * 1990-04-04 1993-11-22 Crown Cork Ag Lukkehætte af formstof
EG21314A (en) 1992-07-16 2000-10-31 Driutt Rodney Malcolm Tamper evident closure
DE19613364C1 (de) * 1996-04-03 1997-11-20 Weis Kg Schraubverschlußkappe aus Kunststoff und Verfahren zu deren Herstellung
AUPO788597A0 (en) 1997-07-14 1997-08-07 Closures And Packaging Services Limited Closure

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2162712A (en) * 1936-07-09 1939-06-20 Hamberger John Container and closure therefor
BR8008835A (pt) * 1979-09-21 1981-06-30 Hc Ind Tampa composta
US4308965A (en) * 1979-10-24 1982-01-05 Sun Coast Plastic Closures, Inc. Unitary cap of two dissimilar materials
US4299328A (en) * 1980-03-26 1981-11-10 Anchor Hocking Corporation Tamperproof bottle closure cap
GB2092999A (en) * 1981-01-16 1982-08-25 Metal Closures Group Plc Closure for screw-threaded container

Also Published As

Publication number Publication date
AU1445183A (en) 1984-11-15
DE3377637D1 (en) 1988-09-15
AU570408B2 (en) 1988-03-17
CA1247555A (en) 1988-12-28
EP0094026A2 (de) 1983-11-16
EP0094026A3 (en) 1985-04-10

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