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Publication numberUS3899097 A
Publication typeGrant
Publication dateAug 12, 1975
Filing dateMay 2, 1974
Priority dateMay 9, 1973
Also published asDE2420416A1
Publication numberUS 3899097 A, US 3899097A, US-A-3899097, US3899097 A, US3899097A
InventorsDietmar Aichinger
Original AssigneeObrist Ag Albert
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Plastic closure cap for a container
US 3899097 A
Abstract
A closure cap formed of plastic for a container, especially a bottle or the like, comprising a cap lift-off or removal nose member which protrudes away from the outer periphery of the body of the closure cap. At least one reference rupture location is provided at a region in the neighborhood of the cap lift-off nose member, which region is stressed during pushing the closure cap off of the container, or such reference rupture location is provided at the cap lift-off nose member itself. Tearing of the reference rupture location indicates any possible unauthorized opening of the container. The regions containing the reference rupture locations form a part of the closure cap member which can be removed as a unit with the cap lift-off nose.
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Description  (OCR text may contain errors)

United States Patent [1 1 Aichinger Aug. 12, 1975 [54] PLASTIC CLOSURE CAP FOR A 3,722,729 3/1973 Yamada 215/254 CONTAINER [75] inventor: Dietmar Aichinger, Arlesheim, Pnmary Han Switzerland Attorney, Agent, or Fzrm-Edward J. Brenner [73] Assignee: Albert Obrist & C0., Reinach, [57] ABSTRACT Switzerland A closure cap formed of plastic for a container, espe- [22] led: May 1974 cially a bottle or the like, comprising a cap lift-off or 21 L N 466 194 removal nose member which protrudes away from the outer periphery of the body of the closure cap. At least one reference rupture location is provided at a [30] Fore'gn Apphcat'on Pnonty Data region in the neighborhood of the cap lift-off nose May 9, l973 Switzerland 6556/73 member region is stressed during pushing the closure cap off of the container, or such reference U.S. rupture location is provided at the cap nose [5 Int. CL2 i member itselfi Tearing of the reference rupture loca- Of Search tion indicates any possible unauthorized opening of 220/266, 268, 269 the container. The regions containing the reference rupture locations form a part of the closure cap meml l References Cited her which can be removed as a unit with the cap lift- UNITED STATES PATENTS off nose.

3,266,652 8/1966 LOhl'Cl' 2l5/253 3 Claims 7 Drawing Figures 3,292,807 l2/l966 Golde 215/253 X PLASTIC CLOSURE CAP FOR A CONTAINER BACKGROUND OF THE INVENTION The present invention relates to a new and improved construction of closure cap member for a container, especially a flask or bottle, which closure cap member is of the type comprising a cap lift-off or actuation nose member which protrudes away from the outer periphery of the body of the closure cap member.

Such type closure cap can be removed from the container by pushing away the lift-off nose member with the thumb. With heretofore known closure caps of this type, it was not possible to determine whether or not the container had already been opened prior to its actual use.

SUMMARY OF THE INVENTION Hence, it is a primary object of the present invention to provide an improved construction of closure cap for a container or the like rendering possible the ready and easy determination whether the container has been previously improperly opened.

Another object of the present invention aims at a new and improved construction of closure cap for a container or the like, which closure cap is relatively simple in construction and design and equipped with means enabling the rapid and quick determination whether the container with which the cap is used has previously been opened.

Now in order to implement these and still further objects of the invention, which will become more readily apparent as the description proceeds, the closure cap of this development contemplates the provision of at least one reference rupture location provided at regions of the cap in the neighborhood of the cap lift-off nose member or at the cap lift-off or removal nose member itself, and which regions are stressed during removal of the closure cap from the container. Tearing of the reference rupture location or locations indicates unauthorized opening of the container. The regions containing the reference rupture locations form a part of the closure cap which can be removed as a unit together with the cap lift-off or removal nose.

The invention is particularly suitable for closure caps used in conjunction with containers which house a beverage under pressure. Such closure caps, also known as crown corks, can possess a substantially cylindrical peripheral or marginal section which axially extends away from the floor of the cap, and at the inner periphery of which there is formed, for instance, a substantially ringshaped, elastically flexible support bead for cooperation with a bead edge at the neck or throat of the container, and a substantially cylindrical inner section which likewise'axially extends away from the cap floor, the outer periphery of which possesses a substantially ring-shaped, elastically flexible sealing bead which sealingly fits into the container throat. The outer contour or shape of such sealing bead approximates ths shape of an olive.

BRIEF DESCRIPTION OF THE DRAWING The invention will be better understood and objects other than those set forth above, will become apparent when consideration is given to the following detailed description thereof. Such description makes reference to the annexed drawing wherein:

FIG. 1 is a side view, partially in section, of a closure cap designed according to the invention;

FIG. 2 is a plan view of the closure cap depicted FIG. -l; i

FIG. 3 is a plan view of a closure cap designed according to the invention, the upper half of the illustration showing one embodiment and the lower half showing a different embodiment;

FIG. 4 is a side view, turned through in comparison to the showing of FIG. 1, and depicting a further modification of. closurecap acccording to the invention;

FIG. 5 is a plan view of the closure cap depicted in FIG. 4;

FIGS. 6 and 7 respectively illustrate plan views of still two different embodiments of closure cap designed according to the invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Describing now the drawing, the various embodiments of closure caps depicted therein possess a substantially bowlor cup-shaped configuration. The sectional view appearing at the right hand portion of FIG. 1 is identical to all of the illustrated embodiments of closure caps. Accordingly, it will be seen that theclosure cap possesses a cap floor or base 1 from which axially protrudes a substantially ring-shaped cylindrical peripheral or marginal section2 and radially and further inwardly thereof a likewise substantially ringshaped cylindrical inner section 3. The marginal or peripheralsection 2 is provided at the region of its free end with an inwardly protruding support bead 4, the upper profile or contour of which, as shown in FIG. 1, extends or slopes more markedly towards the apex ,or tip than its lower contour. The peripheral or marginal section 2 is reinforced at its free end by means of a substantially circular or ring-shaped encircling collar 10 and at its inside by ribs .11 which extend, from the support bead 4 to the cap edge, these ribs being substantiallyuniformly distributed along theinner peripheral wall of the cap.

The inner section or portion 3 has a convex curved outer contour or profile 5 defining a sealing bead and similar to the shape of an olive. As concerns the spacing of the tip or apex of the inner section 3 from the cap floor 1, the same is spaced at a lesser or at most the same distance as the support bead 4 of the outer or petipheral section 2.

Owing to this construction, the support bead 4, upon pressing the closure cap into the neck or throat of the container or the like, bears prior to or at least simultaneous with the sealing bead 5 against the bead edge of the container, and thus during the cap pressing-in or insertion operation the pressure exerted by the sealing bead at the inner section towards the outside upon the inner wall of the container neck or throat is supported at the outer wall of the container neck. In this way there can be avoided destruction of the container neck during insertion of the closure cap owing to too large a pressure being exerted from the inner section or portion 3 upon the container neck.

The closure cap is provided at the outside with a cap lift-off or removal nose 6 (FIG. 2), 6' (FIG. 3), 6" (FIG. 3), 6" (FIGS. 4 and 5), 6" (FIG. 6), and 6" (FIG. 7), which in each of the exemplary illustrated embodiments are equipped to both sides with a respective reinforcement wall 7, 7', 7", 7", 7", and 7".

' During actuation of the cap lift-off or removal nose,

by applying a pressure in the direction of the arrows shown in FIGS. 1 and 4 upwardly away from the neck of the container or the like, the closure cap, which owing to high frictional forces is tightly seated at the neck of the container, is deformed, particularly at the region of the cap lift-off or removal nose. This behavior is beneficially utilized by arranging reference rupture locations at the region of the nose and which are constructed such that the first time the closure cap is pushed or lifted off the container by means of the cap lift-off or removal nose, such reference rupture locations tear, thereby indicating any unauthorized opening of the container or the like.

With the embodiment shown in FIGS. 1 and 2, struts or webs 9 extend between the radial outermost corners of the nose 6 and the cap periphery, and at which struts there is formed a reference rupture location 8 neighboring each corner of the lift-off nose 6. The reference rupture location also can be of course arranged at the location of the connection of the struts or webs 9 with the cap periphery or at an intermediate location of the strut length.

With the embodiment according to FIG. 3, there are provided connection surfaces 9', 9", between the nose or nose member 6' or 6" and the periphery of the closure cap. With the embodiment shown at the upper portion of FIGS, a broken-line illustrated reference rupture line 8' extends neighboring the reinforcement wall'7' atthe connection surface 9, whereas with the modification illustrated at the lower half of FIG. 3 a reference'rupture line 8" initially extends along the periphery of the closure cap at the connection surface 9" and thereafter flexes or bends-off towards the outside 1 from the radial inner corner of the reinforcement wall 7" and extends transversely through the connection surface 9", as shown.

With the embodiment according to FIGS. 4 and 5, there arearranged reference rupture lines 8" to both sides of the cap lift-off or removal nose 6" and such reference rupture lines coincide with axially parallel jacket lines or generatrixes at the wall of the closure cap. With this embodiment the reinforcement walls 7" are not constructed so as to extend up to the periphery of the closure cap, in order to insure for a sufficient deformation of the closure cap wall for tearing the reference rupture lines 8" during the initial lifting-off or removal of the closure cap.

With the embodiments according to FIGS. 6 and 7 the reference rupture lines are arranged at the nose member. itself. With the embodiment of closure cap depicted in FIG. 6, the reference rupture line 8 extends adjacent to and along the periphery of the closure cap at the web of the nose 6" between the reinforcement walls 7", which here again extend up to the peripheral wall of the closure cap.

With the embodiment of FIG. 7, the reference rupture line 8' extends approximately in radial direction and closer to one of both reinforcement walls 7" at the web of the nose 6".

What is common to all of the exemplary embodiments is that upon actuation of the cap lift-off or removal nose for pushing away the closure cap from the neck of thecontainer, the reference rupture locations are caused to tear, thereby visually indicating that the associated container has already been opened, in other words, indicating when necessary any unauthorized opening of the container.

While there is shown and described present preferred embodiments of the invention, it is to be distinctly understood that the invention is not limited thereto, but may be otherwise variously embodied and practiced within the scope of the following claims. Accordingly,

What is claimed is:

1. A closure cap formed of plastic for use with a container, especially a flask or bottle, comprising a closure cap having a cap body, a cap lift-off nose extending away from the outer periphery of the body of the closure cap, at least one reference rupture location provided for said closure cap, said reference rupture location tearing upon removal of the closure cap from the container, the region of the closure cap containing said reference rupture location forming a part of the closure cap which can be removed as a unit together with the cap lift-off nose, said closure cap including at least one lateral connection surface extending between the cap lift-off nose and the outer periphery of the body of the closure cap, said at least one reference rupture location comprising at least one reference rupture line provided at said lateral connection surface.

2. A closure cap formed of plastic for use with a container, especially a flask or bottle, comprising a closure cap having a cap body, a cap lift-off nose extending away from the outer periphery of the body of the closure cap, at least one reference rupture location provided for said closure cap, said reference rupture location tearing upon removal of the closure cap from the container, the region of the closure cap containing said reference rupture location forming a part of the closure cap which can be removed as a unit together with the cap lift-off nose, said reference rupture location comprising a reference rupture line provided at the cap liftoff nose at a region thereof neighboring the periphery of the body of the closure cap, and reinforcement wall means provided for the cap lift-off nose, said reinforcing wall means laterally bounding said reference rupture line.

3. A closure cap formed of plastic for use with a container, especially a flask or bottle, comprising a closure cap having a cap body, a cap lift-off nose extending away from the outer periphery of the body of the closure cap, at least one reference rupture location provided for said closure cap, said reference rupture location tearing upon removal of the closure cap from the container, the region of the closure cap containing said reference rupture location forming a part of the closure cap which can be removed as a unit together with the cap lift-off nose, said closure cap including at least one lateral connection strut extending between the cap liftoff nose and the outer periphery of the body of the closure cap, said at least one reference rupture location comprising at least one reference rupture location provided at said lateral connection strut.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US3266652 *Jan 12, 1965Aug 16, 1966PatentauswertungsgesellschaftClosure for bottles and like containers
US3292807 *Mar 18, 1965Dec 20, 1966Erich GoldeTamper-proof closure
US3722729 *Aug 21, 1970Mar 27, 1973Yamada EBottle cap structure and method for making the same
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4209101 *Sep 14, 1977Jun 24, 1980Sweetheart Plastic, Inc.Tamper-proof closure and method of making same
US4216872 *Jan 11, 1979Aug 12, 1980Brickwood Holdings Proprietary LimitedTamper-proof container
US4354610 *Aug 29, 1980Oct 19, 1982Kessler Products Co., Inc.Reusable container closure cap
US4522308 *Jan 18, 1984Jun 11, 1985Sullivan James JManually mountable tamper evident oral liquid dose viral and seal assembly
US4911316 *Apr 27, 1989Mar 27, 1990Cap Snap Co.Plastic bottle cap sealing plural neck profiles
US5697509 *Jan 27, 1997Dec 16, 1997Anchor Hocking Packaging CompanyHinged tamper-evidencing closure
US5762218 *Oct 5, 1995Jun 9, 1998Franz RossbergPlastic closure retained by snapping over bottle neck bead
US5984125 *Jan 20, 1998Nov 16, 1999Zapata Innovative Closures, Inc.Tamper evident closure for beverages
US6032827 *Jun 25, 1998Mar 7, 2000S. C. Johnson Home Storage, Inc.Container having a selectively detachable lid including a rigid tab member
US6116444 *Jun 4, 1996Sep 12, 2000Crown Cork AgPlastic closure cap
US6158603 *Oct 4, 1999Dec 12, 2000Zapata Innovative Closures Inc.Tamper evident closure for beverages
US6257435Jan 12, 2000Jul 10, 2001King Plastics, Inc.Tamper evident closure member
US6789393Dec 6, 2002Sep 14, 2004S.C. Johnson Home Storage, Inc.Container with pressure relief and lid and method of manufacture therefor
US6981601Mar 21, 2002Jan 3, 2006Alcoa Closure Systems InternationalTamper-evident snap-on closure with sealing plug and liner
US7611027 *Aug 28, 2004Nov 3, 2009Sang-Hoon KimBottle cap and a bottle with the same
US8528778Jun 26, 2012Sep 10, 2013Csp Technologies, Inc.Resealable moisture tight container assembly for strips and the like having a lip snap seal
US8540115Aug 24, 2010Sep 24, 2013Csp Technologies, Inc.Two-shell and two-drawer containers
US8540116Jan 6, 2012Sep 24, 2013Csp Technologies, Inc.Non-round moisture-tight re-sealable containers with round sealing surfaces
US8783485 *Nov 17, 2008Jul 22, 2014Clariant Production (France) S.A.S.Container
US9580212 *May 25, 2012Feb 28, 2017Tetra Laval Holdings & Finance S.A.Packaging assembly, including a bottle and a gasket-less closure for closing the neck of the bottle
US20030178385 *Mar 21, 2002Sep 25, 2003Alcoa Closure Systems InternationalTamper-evident snap-on closure
US20050127023 *Dec 15, 2004Jun 16, 2005Fredy MockliPush-off cap of plastic
US20050230342 *Jul 11, 2002Oct 20, 2005Enrico FolchiniTamperproof closing element for beverage containers
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US20060163190 *Jan 18, 2005Jul 27, 2006Laveault Richard ADrinking spout and closure combination for a beverage container
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US20140076840 *May 25, 2012Mar 20, 2014Tetra Laval Holdings & Finance S.A.Packaging assembly, including a bottle and a gasket-less closure for closing the neck of the bottle
US20150136774 *Jan 21, 2015May 21, 2015Chaim ShemeshReusable tamper-evident cover for beverage cans
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Classifications
U.S. Classification215/253, 215/320
International ClassificationB65D41/48, C02F1/42, C08F251/02, C08B15/00
Cooperative ClassificationB65D2101/0053, C02F1/42, C02F2101/20, C08F251/02, B65D41/485
European ClassificationC08F251/02, B65D41/48B