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Publication numberUS3717274 A
Publication typeGrant
Publication dateFeb 20, 1973
Filing dateSep 18, 1970
Priority dateSep 30, 1969
Also published asDE7034735U
Publication numberUS 3717274 A, US 3717274A, US-A-3717274, US3717274 A, US3717274A
InventorsU Wingardh
Original AssigneeSprinter Pack Ab
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Container with lid for liquids
US 3717274 A
Abstract
A liquid container, particularly containing carbonized drinks, comprising a conical thin-walled plastic container with a bottom formed substantially as part of a sphere having its central portion selectively deformable, and a plane metal sheet lid secured by a folded edge or seal to the edge of the container and provided with a tear-away tongue to provide a pouring opening when tearing off the tongue.
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Description  (OCR text may contain errors)

United States Patent 11 1 Wingardh Feb. 20, 1973 [5 CONTAINER WITH LID FOR LIQUIDS References Cited UNITED STATES PATENTS [75 1 Inventor: UM w'ngardh Swede 3,480,168 11/1969 Lee ..15o/.5

3,529,647 9/1970 Ignell [73] Assignee: Sprinter Pack AB, Halmstad, 3,491,936 1/1970 Fox ..220/67 X Sweden Primary Examiner-George T. Hall [22] Filed; Sept 18 7 Attorney-Ostrolenk, Faber, Gerb & Soffen A liquid container, particularly containing carbonized drinks com risin a conical thin-walled lastic con- 1 1 P t n m P g P [30] Foreign App y a tainer with a bottom formed substantially as part of a Sfipt. 30, Sweden sphere having its central portion selectively deformable, and a plane metal sheet lid secured by a folded [52] U.S. Cl. ..215/1 C, ISO/.5, 220/67, edge or $82 to the edge of the container and provided 220/63 with a tear-away tongue to provide a pouring opening [51] Int. Cl. ..B65d 23/00 when tearing ff the tongue [58] Field of Search ..215/1 C, 42; 150/5; 220/66,

2 Claims, 4 Drawing Figures FIG. 2

l I- l PATENTEB FEB 2 I973 CONTAINER WITH LID FOR LIQUIDS The present invention relates to a liquid container which is provided with a lid, and is primarily intended for carbonized drinks such as beer or the like.

Such a liquid container shall, to the greatest possible extent, fulfill a number of desiderata with regard to manufacturing, filling, sealing, transporting, storing, use and destruction. The question of costs is, in all these cases, a decisive factor.

According to the invention, the desiderata in question could be fulfilled to a high degree with a liquid container which is characterized by a thin-walled plastic container conically tapered at its bottom end which, when the container is filled, constitutes a part of an essentially spherical surface, and an essentially plane metal sheet lid being secured at the edge of the containers open end by means of a folded edge or seam, and provided with a tear-away tongue or the like to form an outlet opening in the lid after the tongue has been torn away.

The invention is based on the principle that by using a special selection of known per se details in the large number of already known liquid containers, a new and satisfactory liquid container can be obtained less expensively.

Making of the thin-walled plastic container does not give rise to any difficulties, because it can be effected with conventional heat forming methods to form plastic foils. The container consists preferably of PVC which can possible be coated with PVdC to increase, in a known way, the barrier properties of the plastic and thereby prevent pressure gas from diffusing through the plastic wall of the container. The conical containers are stacked fitting into each other and are delivered first for filling with a liquid, such as carbonized drink, and then for affixing of the lid. This procedure can take place e.g. in a brewery.

Breweries already have machines for affixing metal sheet lids on tin cans. Thus, in order to seal the containers according to the present invention, simple supports in the shape of vertical supporting sleeves are all that is needed to support the plastic containers during filling and to absorb the forces exerted when the lid is set on and sealed. The metal sheet lid is preferably in the standard design used in cans for beer and similar drinks.

During transport, the filled containers can preferably lie in cartons. The metal sheet lid assumes a position whereby it stands on edge thus forming a rigid element which can absorb considerable compressive forces that can arise when a large number of cartons with filled containers are stacked on top of each other.

7 If so desired, each container can be detachably placed in a drinking cup into which the drink in the container can be poured after the container has been opened. This drinking cup forms a protection for the container during the containers transportation and storage.

The plastic wall of the container is so thin that after the container has been emptied, it can be easily crushed by hand to a relatively small object which takes up little space in waste paper baskets, garbage bags, or the like. Because the container has such a thin wall, only a small amount of plastic is used. This results in a decrease of the amount of harmful substances formed when the used container is burned, e.g. in a garbage incinerator.

These and other characteristic details and advantages of the present invention are explained further with reference to an enclosed drawing illustrating a preferred embodiment of a liquid holding container according to the invention.

FIG. 1 shows partly in section a container according to the invention filled with liquid.

FIG. 2 is a view from above showing a lid with the tear-away tongue.

FIG. 3 is an enlarged section of the edge part of the container in FIG. 1.

FIG. 4 schematically shows a container according to the invention placed in a drinking cup.

The liquid holding container consists of the container itself 10 and an essentially plane lid 11 made of aluminum sheet. The sheet lid 11 is of the standard design used in e.g. beer cans and is provided with a fracturable impression which demarcates a tongue 12 indicated by broken lines. A ring 13 is fastened at the inner end of the tongue 12. By bending up the ring 13 and pulling it inwards, the tongue is torn away in such a manner that an outlet is formed in the lid.

The lid is secured at the edge of the container 10 by means of folding 14 in the manner shown in FIG. 3.

In the vicinity of the lid, the container has an annular collar with a supporting surface 15 facing from the lid. This collar has served as a support against a supporting sleeve 16 in which the container rests while being filled with liquid, and while the lid is sealed to the containers edge. The supporting sleeve is indicated by the broken lines in FIG. 3. This collar can also serve as a support to bear against the edge of a drinking cup 17 in which the container can be placed in the manner shown schematically in FIG. 4 where the container doesnot, however, have any collar but is instead provided with an edge flange as support.

As is evident from FIG. 1, the container tapers conically at its bottom end 18 in order to facilitate the stacking of the containers inside of each other during the conveying to the filling station. The thickness of the wall is made as little as possible and has about the same wall thickness common for plastic foil drinking cups which are designed to be used only once. However, the thickness of the wall in the container according to the invention may advantageously be considerably smaller.

To reduce the deformation of the container during the influence of the inner overpressure present in car.- bonized drinks, it is preferable to make the bottom end 19 of the container so that it assumes a semi-spherical shape as shown in FIG. 1, or with another cupped shape constituting a part of an essentially spherical surface.

In certain applications the container may advantageously be provided with a substantially flat or concave bottom portion as indicated by curved dotted lines 20 in FIG. I. This concave bottom portion has an outer edge which is defined by a small permanent deformation 20a in the wall of the container and which forms a circular ring concentric with the center axis of the container. The concave bottom portion 20 is thus accurately defined and may readily be pressed to bulge outwardly to the shape shown in solid lines in FIG. 1 when the container is sealed and the gas pressure is acting on the bottom portion 20. If the gas pressure for some reason should sink below its predetermined value, this will enable the bottom portion 20 to be pressed inwardly as an indication of the low gas pressure in the container. In some instances, the bottom will automatically return to this shape. Thus it will be possible, for instance after some time of storing the container, to check in a simple manner whether the gas pressure in the container is satisfactory. When the container has been opened by tearing off the tongue 12, the convex bottom portion may be returned to its original concave shape for placing the container in a standing position on a flat horizontal supporting surface which is indicated by a straight dotted line in FIG. 1. When the bottom portion 20 is slightly pressed against the flat supporting surface, the convex bottom portion 20 will snap over to form the concave bottom portion 20.

Due to the fact that the bottom portion 20 is concave upon filling the container with a carbonized liquid and will expand to the convex form not until the container has been sealed with the lid, an increase of the volume of the container will be obtained after its sealing. This is of particular importance in connection with the filling which may be carried out so that the liquid level will lie adjacent the upper edge of the container to obtain a small free space between the liquid level and the lid when sealed. Thus there will be a little amount of air enclosed in the container. This air may alternatively be removed by conventional methods. However, there is also a desire to have a sufficiently free space for receiving some ,of the gas contained in the liquid. This required free space will be obtained automatically when the lid has been sealed, because the gas pressure will press out the bottom portion 20 to its convex form, thereby increasing the volume of the container and the free space above the liquid level. This increased space will reduce the gas pressure in the container and thus the gas pressure load on the walls of the container.

What I claim is:

1. A container assembly for carbonated beverages comprising:

A thin walled plastic cup-like portion having a conically tapered side wall open at its upper wide end and integrally joined to a hemispherical shaped thin walled closure portion to define a convex outer surface at its bottom narrow end;

the upper end of said side wall having a continuous edge extending outwardly and downwardly from the upper end thereof to form a sealing lip;

a fiat circular shaped metallic cover positioned upon said upper end and having its marginal portion folded over and around said sealing lip to provide an air-tightly sealed container assembly;

said cover having a tear-away tongue portion for forming an outlet for the container assembly when the tongue is removed;

a gripping ring secured to the tongue portion of said cover to facilitate removal of said tongue portion; said hemispherical closure portion having a circular shaped deformation surrounding a center portion of said closure portion;

said center portion being collapsible either prior to closure of the container assembly or subsequent to the opening of said container assembly to form a concave outer surface enabling said circular shaped deformation to serve as a surface for supporting said container assembly; said cen er portion being further deformable upon closure of said container assembly to bulge outwardly and collectively define said convex outer surface with the remainder of the hemispherical closure portion surrounding said circular shaped deformation to provide increased volume for the carbonated contents when the container assembly is filled and sealed to reduce the gas pressure in said assembly.

2. The container assembly of claim 1 wherein the upper end of said side wall is abruptly enlarged just below said lip to form an annular collar for supporting said cup-like portion during filling or use.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US3480168 *Dec 26, 1967Nov 25, 1969Dow Chemical CoThermoplastic pressure vessel for carbonated beverages
US3491936 *Dec 5, 1967Jan 27, 1970Continental Can CoPlastic can with metal end
US3529647 *Sep 10, 1968Sep 22, 1970Sobrefina SaContainer
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3799423 *Mar 20, 1972Mar 26, 1974Reynolds Metals CoContainer construction
US3889443 *Oct 24, 1972Jun 17, 1975Sprinter Pack AbMethod of forming a container with lid for liquids, especially carbonized beverages
US3978232 *Jun 19, 1974Aug 31, 1976Edward DodsworthThin walled containers for pressurized liquids
US5009901 *Apr 28, 1989Apr 23, 1991Arthur Guinness Son & Company (Dublin) LimitedMethod of packaging a beverage and a beverage package
US5394990 *Jan 11, 1994Mar 7, 1995May & Baker LtdShock protection packaging for liquids
US5464097 *Jan 13, 1995Nov 7, 1995May & Baker LimitedShock protection packaging for liquids
US5873477 *Dec 13, 1995Feb 23, 1999Chivas Brothers LimitedBottle having a base structure on which it can be spun about its central axis
US6089374 *Sep 30, 1994Jul 18, 2000May & Baker, Ltd.Package having particular humidity for liquid products
US7882975Feb 8, 2011Miller Coors, LLCDouble walled beverage container and method of making same
US8448810Aug 31, 2010May 28, 2013Millercoors, LlcDouble walled beverage container and method of making same
US8667662Jan 6, 2011Mar 11, 2014Millercoors LlcDouble walled beverage container and method of making same
US8763829 *Apr 5, 2012Jul 1, 2014Craig Allen MadausCollapsible container for holding liquids or objects
US9101679Sep 29, 2010Aug 11, 2015Ts03 Inc.Sterilization method and apparatus
US9161661Feb 21, 2014Oct 20, 2015Millercoors, LlcDouble walled beverage container and method of making same
US20070045218 *Aug 25, 2006Mar 1, 2007Universal Solutions, LlcBeverage container and method for making same
US20080169297 *Jan 12, 2007Jul 17, 2008Coors Brewing CompanyDouble Walled Beverage Container and Method of Making Same
US20100320213 *Aug 31, 2010Dec 23, 2010Millercoors, LlcDouble walled beverage container and method of making same
US20110076192 *Mar 31, 2011Tso3 Inc.Sterilization method and apparatus
US20110101005 *Jan 6, 2011May 5, 2011Millercoors, LlcDouble walled beverage container and method of making same
US20130020276 *Jan 24, 2013Craig Allen MadausSegmented Collapsible Container
US20130142592 *Jun 6, 2013Alex I. KhowayloThermally Broken Beverage Container and Method of Fabrication
EP1044889A1 *Apr 11, 2000Oct 18, 2000Stork Food & Dairy Systems B.V.Packaging container, manufacturing method thereof and use in aseptically packaging of products
WO2011038487A1 *Sep 29, 2010Apr 7, 2011Tso3 Inc.Sterilization method and apparatus
Classifications
U.S. Classification215/373, 220/619, 215/DIG.700, 220/611
International ClassificationB65D77/04, B65D17/34, B65D23/00
Cooperative ClassificationB65D17/165, B65D15/18, Y10S215/07, B65D77/0486
European ClassificationB65D15/18, B65D77/04F1, B65D17/16B2