EP0136088A2 - Behälterverschluss - Google Patents

Behälterverschluss Download PDF

Info

Publication number
EP0136088A2
EP0136088A2 EP84305822A EP84305822A EP0136088A2 EP 0136088 A2 EP0136088 A2 EP 0136088A2 EP 84305822 A EP84305822 A EP 84305822A EP 84305822 A EP84305822 A EP 84305822A EP 0136088 A2 EP0136088 A2 EP 0136088A2
Authority
EP
European Patent Office
Prior art keywords
fin
closure
container
flared
free end
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.)
Granted
Application number
EP84305822A
Other languages
English (en)
French (fr)
Other versions
EP0136088B1 (de
EP0136088A3 (en
Inventor
John Harry Guest
James Frederick Herbert
Peter Reginald Haines
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.)
Arconic Closure Systems International UK Ltd
Original Assignee
Metal Closures Ltd
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
Priority claimed from GB838323037A external-priority patent/GB8323037D0/en
Priority claimed from GB838327991A external-priority patent/GB8327991D0/en
Application filed by Metal Closures Ltd filed Critical Metal Closures Ltd
Priority to AT84305822T priority Critical patent/ATE40327T1/de
Publication of EP0136088A2 publication Critical patent/EP0136088A2/de
Publication of EP0136088A3 publication Critical patent/EP0136088A3/en
Application granted granted Critical
Publication of EP0136088B1 publication Critical patent/EP0136088B1/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
    • 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
    • B65D41/02—Caps or cap-like covers without lines of weakness, tearing strips, tags, or like opening or removal devices
    • B65D41/04—Threaded or like caps or cap-like covers secured by rotation
    • B65D41/0407—Threaded or like caps or cap-like covers secured by rotation with integral sealing means
    • B65D41/0428—Threaded or like caps or cap-like covers secured by rotation with integral sealing means formed by a collar, flange, rib or the like contacting the top rim or the top edges or the external surface of a container neck

Definitions

  • This invention relates to container closures.
  • said flared surface is conical and is inclined at 45° or less to the central axis of the closure. In one example the angle is 30°.
  • the fin may conveniently also be conical and may extend parallel to said flared surface.
  • the free end portion of the fin is thicker than the main body of the fin.
  • the free end portion may be thus thickened by reason of the provision of a peripheral rib formed locally on either the radially inner surface or the radially outer surface of said free portion.
  • the thickening of the free end portion serves to reduce the tensile stress in the fin when the closure is applied and in consequence to reduce the degree of extension of the free end portion of the fin so that a greater part of the length of the fin tends to hug the outer corner portion of the neck more closely and thus improves the seal.
  • a peripheral rib is formed on the radially inner surface of the fin, the rib may itself form with the neck of the container an additional line seal about the neck.
  • the flared surface may engage the rib and press the free end portion of the fin towards the neck of the container, preferably at a position slightly below the outer corner portion of the neck.
  • the radially inner surface of the fin may have a plurality of annular grooves formed therein, each pair of adjacent grooves defining between them an annular rib of triangular cross-section.
  • the grooves may be triangular and of buttress section, and the buttress face of the groove may face towards or away from the top to form a rib or ribs suitable for use with containers for materials under vacuum or under pressure, or may be of other triangular shape such as isosceles or equilateral triangular shape to form a rib or ribs of other required cross-sectional shape.
  • the closure 10 is moulded in one piece from a resilient plastics material and has a top 11 and a dependent skirt 12 formed with an internal screw-thread 13 and external knurling 14.
  • the thickness of the top increases gradually towards the centre.
  • the corner region 15 at the upper end of the skirt is thickened and has a conically flared internal surface 16 extending at an angle of 30° to the central axis 17 of the closure.
  • Spaced radially inwardly of the surface 16 is a flexible resilient annular fin 18 of uniform thickness which extends from the underside of the top and substantially parallel to the surface 16.
  • the top 21 of the neck of the container deforms the fin 18 upward as illustrated in Figures 2 and 3, and the fin lies across and against at least the radially outer portions of the top 21 of the container neck and has a sufficient length in contact with the surface 16 to be pressed thereby against the outer corner portion 22 of the neck to form a top and corner seal.
  • the axial length of the surface 15 and the length of the fin are also such that this sealing engagement takes place when the diameter of the container neck is on the upper limit of its tolerance as shown in Figure 2 or on the lower limit of its tolerance as shown in Figure 3.
  • Figure 4 shows a modificataion in which buttress-section triangular grooves 23 (threee such grooves in the present instance) are formed on the radially inner surface of the fin to provide improved sealing engagement between the fin and the container.
  • the buttress faces 24 of the grooves face away from the top and this arrangement is particularly suitable in some cases where the container has a partial vacuum internally thereof.
  • Figure 5 shows an alternative modification for use in some cases where the container holds a carbonated beverage, again to provide improved sealing engagement between the fin and the container, the radially inner surface of the fin having formed therein buttress-section triangular grooves 26 whereof the buttress face 27 is directed towards the top.
  • grooves of other sections may be formed in the radially inner surface of the fin.
  • the fin 18 has a main body of uniform thickness but has its free end portion of the fin thickened by reason of the formation of a broad flat-topped rib 30 on the radially inner surface of the end portion.
  • Figures 6 and 7 show the closure applied to a screw-threaded container neck 20, the diameters of which are at the lower and upper limits of the tolerance, and Figure 7 also shows the sealing fin in its unstressed condition extending parallel to the flared surface 16.
  • the rib 30 serves to strengthen the free end portion of the fin so that the diametral strain in that portion, due to the outward flexing of the fin by the top and outer corner parts of the neck, is less than if the rib were absent, and in consequence the end ° portion of the fin tends to lie closer to the outer corner portion of the neck even when, as in Figure 6, it is not constrained by the surface 16 to do so.
  • FIG. 8 and 9 The construction shown in Figures 8 and 9 is similar to that in Figures 6 and 7, but in Figures 8 and 9 the thickening of the free end portion of the fin is achieved by forming a rib 31 having a curved profile on the radially outer surface of the fin 18.
  • Figures 8 and 9 show the closure applied to container necks on the lower and higher limits respectively of the diametral tolerance.
  • the thickening of the free end portion of the fin strengthens it loclly and causes it to be stretched to a lesser extent, but the surface 16 engages the rib 31 and presses the free end portion of the fin radially inward so as further to improve the seal.
  • the fin may have a thickness of the order of 0.63mm (.025").
  • closures shown in Figures 6 to 9 may additionally have grooves on the radially inner faces of the fins as described in relation to Figures 4 and 5.
  • closures may thus be designed for use with either glass or plastic containers which are intended to contain still or carbonated liquids or materials under partial volume.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
EP84305822A 1983-08-26 1984-08-24 Behälterverschluss Expired EP0136088B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84305822T ATE40327T1 (de) 1983-08-26 1984-08-24 Behaelterverschluss.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB838323037A GB8323037D0 (en) 1983-08-26 1983-08-26 Container closures
GB8323037 1983-08-26
GB8327991 1983-10-19
GB838327991A GB8327991D0 (en) 1983-10-19 1983-10-19 Container closures

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP88108884.3 Division-Into 1984-08-24

Publications (3)

Publication Number Publication Date
EP0136088A2 true EP0136088A2 (de) 1985-04-03
EP0136088A3 EP0136088A3 (en) 1986-08-06
EP0136088B1 EP0136088B1 (de) 1989-01-25

Family

ID=26286800

Family Applications (2)

Application Number Title Priority Date Filing Date
EP84305822A Expired EP0136088B1 (de) 1983-08-26 1984-08-24 Behälterverschluss
EP88108884A Withdrawn EP0293901A1 (de) 1983-08-26 1984-08-24 Behälterverschluss

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP88108884A Withdrawn EP0293901A1 (de) 1983-08-26 1984-08-24 Behälterverschluss

Country Status (9)

Country Link
EP (2) EP0136088B1 (de)
AU (1) AU570997B2 (de)
CA (1) CA1282033C (de)
DE (1) DE3476368D1 (de)
ES (1) ES281256U (de)
FI (1) FI80653C (de)
HK (1) HK74289A (de)
IE (1) IE55655B1 (de)
SG (1) SG22589G (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989012584A1 (en) * 1988-06-17 1989-12-28 M.K. Plastics Pty. Limited Linerless closure for carbonated beverage container
US5423444A (en) * 1988-06-17 1995-06-13 Mk Plastics Pty Ltd. Linerless closure for carbonated beverage container
US5638972A (en) * 1988-06-17 1997-06-17 Druitt; Rodney Malcolm Linerless closure for carbonated beverage container
RU2125958C1 (ru) * 1993-08-19 1999-02-10 Пресижн ВЭЛВ Аустрэлиа Пти Лимитед Крышка для горлышка сосуда
WO2000056616A1 (en) * 1999-03-18 2000-09-28 Closures And Packaging Services Limited Closure with seal member
CN113646237A (zh) * 2019-01-21 2021-11-12 温纳塑料集团有限公司 用于容器的封闭件

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NZ213944A (en) * 1984-11-05 1988-02-12 Sunbeam Plastics Corp Screw-threaded closure-container assembly
US4708255A (en) * 1985-12-12 1987-11-24 Tri-Tech Systems International Inc. Closure cap with a linerless seal and a method for forming such closure and seal
DE4128474A1 (de) * 1991-08-28 1993-03-04 Berg Jacob Gmbh Co Kg Kunststoffschraubverschluss fuer unter druck stehende flaschen
DE69302966T2 (de) * 1992-07-21 1996-10-10 Metal Box Plc Einstückiger Kunststoffverschluss
IL110654A (en) * 1993-08-19 1997-11-20 Precision Valve Australia Linerless closure for container
FR2710325B1 (fr) * 1993-09-22 1995-12-08 Jacques Perchepied Bouchon à visser.
US6126027A (en) * 1995-02-21 2000-10-03 Mcg Closures Limited Self-centering container closure
GB2313115B (en) * 1995-02-21 1998-08-19 Metal Closures Group Ltd Self-centering container closure
DE69602353T2 (de) * 1995-02-21 1999-09-09 Mcg Closures Ltd. Selbstzentrierender behälterverschluss
IT1278697B1 (it) * 1995-06-07 1997-11-27 Bruno Taddei Otturatore a vite in resina sintetica stampata con labbro di guarnizione per tenuta assiale
AUPO788597A0 (en) 1997-07-14 1997-08-07 Closures And Packaging Services Limited Closure
FR2828173B1 (fr) * 2001-08-01 2003-10-31 Rical Sa Bouchon comprenant une jupe interieure d'etancheite cooperant avec la face exterieure d'un col de recipient

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1187260A (fr) * 1956-11-27 1959-09-09 Cerbo Ab Dispositif de fermeture de l'embouchure d'un récipient
US3259266A (en) * 1964-01-06 1966-07-05 Dykem Company Closures for fluid containers
FR1525583A (fr) * 1966-06-10 1968-05-17 Thomassen & Drijver Bouteille en matière plastique avec obturateur
US3802590A (en) * 1972-05-22 1974-04-09 Bernardin Inc Linerless container closure
FR2327930A1 (fr) * 1975-10-13 1977-05-13 Alca Sa Bouchon a vis en matiere thermoplastique
FR2339540A1 (fr) * 1976-01-28 1977-08-26 Bouchons Plastiques Perfectionnements aux bouchons a vis
US4072244A (en) * 1977-02-04 1978-02-07 Owens-Illinois, Inc. Linerless closure
GB1602746A (en) * 1978-05-30 1981-11-18 Montgomery Daniel & Son Ltd Closure device for containers
NL8204885A (nl) * 1981-12-24 1983-07-18 Anchor Hocking Corp Voeringloze vacuumsluiting van kunststof.
GB2120219B (en) * 1982-05-17 1985-10-02 Metal Closures Group Plc Closures for containers

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989012584A1 (en) * 1988-06-17 1989-12-28 M.K. Plastics Pty. Limited Linerless closure for carbonated beverage container
US5423444A (en) * 1988-06-17 1995-06-13 Mk Plastics Pty Ltd. Linerless closure for carbonated beverage container
US5638972A (en) * 1988-06-17 1997-06-17 Druitt; Rodney Malcolm Linerless closure for carbonated beverage container
US5836464A (en) * 1988-06-17 1998-11-17 Closures And Packaging Services Limited Closure for beverage container
US6082569A (en) * 1988-06-17 2000-07-04 Closures And Packaging Services Limited Linerless closure for carbonated beverage container
US6325228B1 (en) 1988-06-17 2001-12-04 Closures And Packaging Services Limited Linerless closure for carbonated beverage container
US6805252B2 (en) 1988-06-17 2004-10-19 Closures And Packaging Services Limited Container and linerless closure combination
US7431877B2 (en) 1988-06-17 2008-10-07 Closures And Packaging Services Limited Linerless closure for carbonated beverage container
RU2125958C1 (ru) * 1993-08-19 1999-02-10 Пресижн ВЭЛВ Аустрэлиа Пти Лимитед Крышка для горлышка сосуда
WO2000056616A1 (en) * 1999-03-18 2000-09-28 Closures And Packaging Services Limited Closure with seal member
US6772894B1 (en) 1999-03-18 2004-08-10 Closures And Packaging Services Limited Closure with seal member
CN113646237A (zh) * 2019-01-21 2021-11-12 温纳塑料集团有限公司 用于容器的封闭件

Also Published As

Publication number Publication date
DE3476368D1 (en) 1989-03-02
IE842127L (en) 1985-02-26
CA1282033C (en) 1991-03-26
ES281256U (es) 1985-12-16
FI843298A0 (fi) 1984-08-21
EP0293901A1 (de) 1988-12-07
HK74289A (en) 1989-09-22
FI80653C (fi) 1990-07-10
AU3227584A (en) 1985-02-28
FI80653B (fi) 1990-03-30
IE55655B1 (en) 1990-12-05
EP0136088B1 (de) 1989-01-25
AU570997B2 (en) 1988-03-31
SG22589G (en) 1989-07-14
FI843298A7 (fi) 1985-02-27
EP0136088A3 (en) 1986-08-06

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