US3529647A - Container - Google Patents

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Publication number
US3529647A
US3529647A US758832A US3529647DA US3529647A US 3529647 A US3529647 A US 3529647A US 758832 A US758832 A US 758832A US 3529647D A US3529647D A US 3529647DA US 3529647 A US3529647 A US 3529647A
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US
United States
Prior art keywords
container
sleeve
gas
liquid
bottles
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 - Lifetime
Application number
US758832A
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English (en)
Inventor
Rolf Lennart Ignell
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.)
Sobrefina SA
Original Assignee
Sobrefina SA
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 Sobrefina SA filed Critical Sobrefina SA
Application granted granted Critical
Publication of US3529647A publication Critical patent/US3529647A/en
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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
    • B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
    • B65D25/20—External fittings

Definitions

  • CONTAINER Filed Sept. 10, 1968 United States Patent 3,529,647 CONTAINER Rolf Lennart Ignell, Lund, Sweden, assignor to Sobrefina S.A., Fribourg, Switzerland, 21 Swiss corporation Filed Sept. 10, 1968, Ser. No. 758,832 Claims priority, application Sweden, Sept. 25, 1967, 13,128/ 67 Int. Cl. B65d 23/08 U.S. Cl.
  • a container for liquids containing pressurized gas is provided in which the container is made of a flexible, elastic plastic material surrounded by a substantially inflexible sleeve extending beyond the bottom of said container whereby expansion due to the pressurized gas will take place longitudinally While remaining protected by the sleeve.
  • This invention is concerned with a container for pressurized liquids, at least part of the contents consisting of gas.
  • Packages of glass or sheet metal have so far been used for the packaging of pressurized liquids which at least in part consist of gas, e.g., beer, Vichy Water, etc.
  • gas e.g., beer, Vichy Water, etc.
  • the reason why just these packaging materials have been used is that they satisfy the requirements that are set as regards impermeability, at the same time as they are mechanically stable.
  • plastic materials have lately come on the market, which after suitable treatment can be used for pressurized liquids and which then have characteristics that the materials known earlier have not.
  • a material is, e.g., polyvinylchloride which has been coated or varnished with polyvinylidene chloride known commercially as Saran in order to attain the required impermeability to gases.
  • Saran polyvinylidene chloride
  • the plastic container will undergo a change in shape due to the wall material being strained.
  • This is naturally a certain disadvantage, since the aim within rational transportation technology is to have fixed dimensions for bottles and packages. It has been found further that there is a danger of spillage by splashing when a container is opened and the container walls suddenly resume their original positions.
  • the said straining of the wall material means an increase in the volume of the container which in certain cases is an advantage.
  • the bottles can be completely filled and then capped without any of the contents being removed.
  • the reason for this is that the walls of the container are flexible and the introduction of the pressurized liquid thus means that the volume of the container increases.
  • the increased volume is naturally immediately filled by the gas liberated by the liquid, e.g., in this case beer, and when the container is brought into the opening position, i.e., is held so that the opening of the container is towards the top, the cushion of gas will naturally come to be situated next to the opening of the container.
  • Patented Sept. 22, 1970 ice is formed a cushion of gas which, when the liquid is beer, contains partly carbon dioxide and partly oxygen.
  • the carbon dioxide is naturally made up of gas liberated from the liquid while the oxygen is from the air that has been trapped in the bottle when it was capped.
  • the oxygen oxidizes certain taste constituents in the beer which means that its quality deteriorates. It is therefore desirable that it should be possible to exclude oxygen, but this is diflicult, since the bottles are not completely filled and the capping machines are generally of open construction which do not prevent air getting into the bottles.
  • the disadvantages inherent in known plastic containers are pressurized liquids, e.g., the danger of splashing when the containers are opened, and the phenomenon that the walls, which had been stretched by the pressure inside, soon resume their original positions, are removed by the invention, which is characterised by the container being at least partly produced from a flexible plastic material which, when pressure is released, only resumes its original position slowly; by a flexible plastic lining capable of closure and by a stiff sleeve of, e.g., cardboard or sheet metal surrounding the said plastic lining, by which means the straining and deformation of the plastic lining, brought about by the pressurised liquid contents, results in the main in an increase in the length of the lining surrounded by the sleeve, and by the wall material of the container consisting of polyvinylchloride comprising an elastomer, e.g. ABS.
  • FIG. 1 shows a container partly in cross section in accordance with the invention.
  • the figure thus shows a closed plastic container 2 of, e.g., polyvinylchloride coated with Saran that has had an elastomer, such as acrylonitrile-butadiene-styrene resin hereinafter referred to as ABS, added to it, which container has a cylindrical central portion and two curved end portions, one of which is provided with a capping device 5.
  • the container 2 is surrounded by an outer sleeve 1 which is made from a material that is stiff and only slightly flexible, e.g. cardboard or a similar material.
  • the container 2 is arranged in relation to the outer sleeve 1 in such a way that the sleeve projects beyond the bottom end of the container and serves as its support.
  • the container is inserted into its outer sleeve 1 prior to the introduction of the pressurised liquid, this filling operation being preferably carried out with the liquid at a low temperature.
  • the impermeable cap 5 is put on, after which the filling operation is complete.
  • container 2 After some time, and especially if the container with its contents has been stored at room temperature, the pressure in container 2 increases, which results in the walls of the plastic container being strained. Since sleeve 1 prevents expansion in the transverse direction, the container will instead expand longitudinally in the direction of sleeve 1, assuming finally the position 3 indicated by the dotted line. This expansion of container 2 is accompanied by an increase in volume which means that the liquid inside the container will not fill the whole space, and that the excess space will instead be taken up by the gas liberated by the liquid which was previously dissolved in the liquid.
  • the most usual gas which is likely to be encountered is carbon dioxide which is dissolved in, e.g., beer and Vichy water.
  • the container When the pressure inside the container and the tension in the walls have reached an equilibrium condition. the container will not expand any more, and the container is ready for use in the same way as conventional glass bottles, i.e., the cushion of gas 6 formed below cap 5 prevents spillage when the container is opened by removing cap 5.
  • the container body 2 gradually returns to its original shape, i.e., the stretched walls shrink. This process however, takes place very slowly if the material used, consists of a polyvinylchloride or a plastic material having similar properties and an elastomer, e.g. ABS, and will not cause the contents to splash out as a result of the contraction of the container.
  • the container in accordance with the invention has been found very advantageous, since it is low in weight in comparison with conventional glass bottles, is cheap and can be easily destroyed by burning. It will also not break when dropped to the ground and will not produce sharp splinters which easily injure men and animals.
  • the diameter of the container is stable as a result of the outer sleeve 1, and the greater part of the deformation of the container is on the whole concentrated to the cylindrical central portion of the container body situated in the sleeve 1, which portion undergoes an extension. Since the deformed portion of the container is completely enclosed in the outer sleeve 1, there will be no inconvenience when the container is transported and handled.
  • the upper portion of the container procontainer from the sleeve 1 can thus be shaped as, e.g., a truncated cone or be given any shape whatever. It is however, an advantage if the end portions are dome-shaped, since in this case the tensile stresses will be uniformly distributed over the whole surface of the end portions, which means that the least possible deformation or change of dimensions will occur in these portions of container 2.
  • a container for liquids containing a pressurized gas comprising an impermeable elastic container composed of polyvinyl chloride and elastomer, a sleeve of inflexible inelastic material surrounding and engaging said elastic container for restraining transverse expansion of said elastic container while permitting expansion of the elastic container by said pressurized gas longitudinally of said inelastic sleeve, said elastic container being capable, when the pressurized gas is released, of shrinking to its original size and shape gradually so that splashing of the liquid contained therein by rapid contraction of said elastic container will be prevented.
  • a container as claimed in claim 1 wherein the clastomer is an acrylonitrile-butadiene-styrene resin.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
US758832A 1967-09-25 1968-09-10 Container Expired - Lifetime US3529647A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1312867 1967-09-25

Publications (1)

Publication Number Publication Date
US3529647A true US3529647A (en) 1970-09-22

Family

ID=20296874

Family Applications (1)

Application Number Title Priority Date Filing Date
US758832A Expired - Lifetime US3529647A (en) 1967-09-25 1968-09-10 Container

Country Status (5)

Country Link
US (1) US3529647A (da)
BE (1) BE721317A (da)
DK (1) DK119043B (da)
FR (1) FR1580087A (da)
GB (1) GB1177047A (da)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3655084A (en) * 1970-01-30 1972-04-11 Bosch Gmbh Robert Container with pressure retaining sealing elements
US3717274A (en) * 1969-09-30 1973-02-20 Sprinter Pack Ab Container with lid for liquids
US3799423A (en) * 1972-03-20 1974-03-26 Reynolds Metals Co Container construction
US3978232A (en) * 1970-12-30 1976-08-31 Edward Dodsworth Thin walled containers for pressurized liquids
US3982029A (en) * 1972-10-17 1976-09-21 Sobrefina Sa Package intended for pressurized contents
US4771903A (en) * 1986-11-14 1988-09-20 Leon Levene Glass container sealing method
US4930644A (en) * 1988-12-22 1990-06-05 Robbins Edward S Iii Thin film container with removable lid and related process
US4940137A (en) * 1986-11-18 1990-07-10 Straub Albert H Coaster carrier
US5060816A (en) * 1988-12-22 1991-10-29 Robbins Edward S Iii Composite container and associated carrier
USD379490S (en) * 1994-12-30 1997-05-27 C.A.P. Inc. Liquid chemical tank
US6006951A (en) * 1994-12-30 1999-12-28 C.A.P. Inc. Chemical measuring tank
US20020121139A1 (en) * 2001-03-02 2002-09-05 Purpura Paul E. Adapter for holding a sample container to facilitate sensing of liquid level in the sample container

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9402643D0 (en) * 1994-02-11 1994-04-06 Rosenberg David Plastic bottle grip

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2709024A (en) * 1951-03-17 1955-05-24 Lemoine Serge Device for the automatic delivery of fluid and pasty material incorporating automatic closing means
US2816691A (en) * 1954-08-16 1957-12-17 Lawrence T Ward Spray device having a flexible sac lining
US3156383A (en) * 1962-04-05 1964-11-10 Maison Ind Tecnico Chimiche Ne Expansible single use dispensing container
US3204855A (en) * 1963-04-29 1965-09-07 Int Latex Corp Flexible container
US3325030A (en) * 1964-07-20 1967-06-13 Rausing Bottle containing a fluent material under pressure

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2709024A (en) * 1951-03-17 1955-05-24 Lemoine Serge Device for the automatic delivery of fluid and pasty material incorporating automatic closing means
US2816691A (en) * 1954-08-16 1957-12-17 Lawrence T Ward Spray device having a flexible sac lining
US3156383A (en) * 1962-04-05 1964-11-10 Maison Ind Tecnico Chimiche Ne Expansible single use dispensing container
US3204855A (en) * 1963-04-29 1965-09-07 Int Latex Corp Flexible container
US3325030A (en) * 1964-07-20 1967-06-13 Rausing Bottle containing a fluent material under pressure

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3717274A (en) * 1969-09-30 1973-02-20 Sprinter Pack Ab Container with lid for liquids
US3655084A (en) * 1970-01-30 1972-04-11 Bosch Gmbh Robert Container with pressure retaining sealing elements
US3978232A (en) * 1970-12-30 1976-08-31 Edward Dodsworth Thin walled containers for pressurized liquids
US3799423A (en) * 1972-03-20 1974-03-26 Reynolds Metals Co Container construction
US3982029A (en) * 1972-10-17 1976-09-21 Sobrefina Sa Package intended for pressurized contents
US4771903A (en) * 1986-11-14 1988-09-20 Leon Levene Glass container sealing method
US4940137A (en) * 1986-11-18 1990-07-10 Straub Albert H Coaster carrier
US4930644A (en) * 1988-12-22 1990-06-05 Robbins Edward S Iii Thin film container with removable lid and related process
US5060816A (en) * 1988-12-22 1991-10-29 Robbins Edward S Iii Composite container and associated carrier
USD379490S (en) * 1994-12-30 1997-05-27 C.A.P. Inc. Liquid chemical tank
US6006951A (en) * 1994-12-30 1999-12-28 C.A.P. Inc. Chemical measuring tank
US20020121139A1 (en) * 2001-03-02 2002-09-05 Purpura Paul E. Adapter for holding a sample container to facilitate sensing of liquid level in the sample container

Also Published As

Publication number Publication date
BE721317A (da) 1969-03-03
FR1580087A (da) 1969-08-29
GB1177047A (en) 1970-01-07
DK119043B (da) 1970-11-02

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