WO1993024377A1 - Recipient resistant au renflement - Google Patents

Recipient resistant au renflement Download PDF

Info

Publication number
WO1993024377A1
WO1993024377A1 PCT/US1993/004580 US9304580W WO9324377A1 WO 1993024377 A1 WO1993024377 A1 WO 1993024377A1 US 9304580 W US9304580 W US 9304580W WO 9324377 A1 WO9324377 A1 WO 9324377A1
Authority
WO
WIPO (PCT)
Prior art keywords
container
base
curve
section
closest
Prior art date
Application number
PCT/US1993/004580
Other languages
English (en)
Inventor
Petros Kalkanis
Original Assignee
The Procter & Gamble Company
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 The Procter & Gamble Company filed Critical The Procter & Gamble Company
Priority to US08/343,596 priority Critical patent/US5492245A/en
Priority to JP6500580A priority patent/JP2980684B2/ja
Priority to BR9306481A priority patent/BR9306481A/pt
Publication of WO1993024377A1 publication Critical patent/WO1993024377A1/fr

Links

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
    • B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
    • B65D1/0223—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by shape
    • B65D1/0261—Bottom construction
    • B65D1/0276—Bottom construction having a continuous contact surface, e.g. Champagne-type bottom

Definitions

  • the present invention relates to a container of thermoplastic material for containing liquids.
  • the container is designed so as to resist bulging.
  • thermoplastic materials to manufacture containers for liquids.
  • Some of the liquids to be contained by such containers for instance bleach- containing compositions, create internal pressure which builds up with time.
  • the containers are progressively subjected to deformation due to the internal pressure build-up, especially at their base.
  • This phenomenon is often referred to as "bulging”. This phenomenon is especially acute in warm countries where the containers may be exposed to particularly elevated temperatures. In some instances, bulging can be so severe so as to induce a base deformation which is such that the container can no longer
  • SUBSTITUTESHEET stay in upright position. For instance in supermarkets, the containers may fall of the shelves.
  • Anti-bulging containers have been disclosed in the art, for instance in DE 16 07 895, DE 21 11 534, EP 0 002 082 and our co-pending European Application EP 91202524. These references disclose containers having a central dome, where the dome is connected to the side walls of the container by pieces of thermoplastic material of various shapes. It is therefore an object of the present invention to provide a container of thermoplastic material for containing liquids with improved resistance to bulging.
  • the present invention is a container (1) of thermoplastic material comprising a side wall (2) and a base (3) , said base comprising, in a cross section in a plane comprising the container's vertical axis (A), a concave inwards curved section (4) connected to the side wall (2) , at least two successive stairs, each stair consisting of a straight part
  • SUBSTITUTESHEET (5,5') forming an angle ( l, ⁇ 2) with a plane (B) perpendicular to said axis (A) , followed by a sharp concave outwards curve (6,6'), and a dome (8) consi ⁇ ting of a smooth concave outwards curve.
  • the base (3) of the container (1) is symmetrical about said axis (A) .
  • the container according to the invention is made of a thermoplastic material.
  • a thermoplastic material Such materials have been extensively described in the art and include vinyl chloride based resins, polymers and copolymers derived from olefins, acrylic polymers and copolymers, polyethylene, polypropylene, polystyrene, polyethylene terephthalate, polyethylene terephthalate glycol, or mixtures thereof.
  • the container can be made by single or multi layer extrusion of such materials. It can also be made out of recycled thermoplastic materials.
  • a preferred thermoplastic material for use herein is polyethylene.
  • the cross section of the container according to the present invention, and/or its base, in a plane perpendicular to the container's vertical axis (A), can be square or rectangular, ovoid or circular.
  • the base (3) of the . container according to the present invention is symmetrical about said axis (A) .
  • said cross section is circular. .
  • the present invention is particularly suitable for containers of rather small size, i.e. where the container's largest dimension in said cross section is less than 10cm.
  • fig 1 represents the lower part of the container in a cross section in a plane comprising the container's central vertical axis (A).
  • Fig 2 represents the lower part of the container in a cross section in a plane comprising the container's central vertical axis (A).
  • SUBSTITUTE SHEET represents a scale up of the lower part of the container, on one side of (A) .
  • the container (1) comprises a side wall (2) and a base (3) .
  • the base (3) which is the gist of the present invention is connected to the side wall (2) .
  • the base (3) comprises a curved section (4) , followed by at least two stairs (5/6,5'/6*) and a dome (8).
  • the curved section (4) is connected at one extremity to the side wall(2), and at the other extremity to at least two successive stairs.
  • the curve of said curved section (4) is concave inwards, i.e. the interior of said curve faces the inside of the container.
  • Each stair comprises a straight part (5,5') followed by a sharp curve (6,6*).
  • the straight parts (5,5') can be of same dimensions, but in a preferred embodiment, the straight part which is the closest to the periphery of the container is longer than straight part which is closest to the center of the container.
  • Each straight part (5,5') forms an angle (c-l, ⁇ 2) with a plane (B) perpendicular to the container's vertical central axis (A) .
  • ⁇ l and ⁇ 2 can be different, but in a preferred embodiment of the invention ⁇ l and ⁇ 2 are the same.
  • Each straight part (5,5") is connected to a sharp curve (6,6*).
  • sharp curve it is meant herein a curve who's radius is smaller than the radius of the curved section (4) .
  • said sharp curves (6,6') are concave outwards, i.e. the interior of each sharp curve (6,6*) faces the outside of the container.
  • the radius of the sharp curves (6,6') can be identical, but in a preferred embodiment, the radius of the sharp curve which is closest to the periphery of the container is larger than the radius of the sharp curve which is closest to the center of the container.
  • the base (3) only comprise two stairs.
  • the sharp curve of the stair which is closest to the center of the container is connected to a dome (8) .
  • the dome (8) consists of a smooth curve. Said smooth curve is concave outwards, i.e. the interior of said curve faces the outside of the container.
  • smooth curve it is meant herein a curve who's radius is larger than the radius of both curved sections (6,6') .
  • the present invention is further illustrated by the following example.
  • a cylindrical container according to the present invention is made out of polyethylene. It has a diameter of 90mm.
  • the radius of the curved section (4) is 5.5mm.
  • the length of the straight part (5) measured along plane (B) is 11.5 mm.
  • the radius of the sharp curve (6) is 3mm.
  • the length of the straight part (5 1 ) measured along plane (B) is 4.65mm.
  • the radius of the sharp curve (6*) is 2mm.
  • the radius of the dome is 90mm.
  • the thickness of the thermoplastic material used for this embodiment is 1.5mm throughout the container.

Landscapes

  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Packages (AREA)

Abstract

Récipient (1) résistant au renflement, constitué d'une paroi latérale (2) et d'une base (3). Selon la section transversale en plan passant par l'axe vertical du récipient (A), la base (3) présente une partie concave vers l'extérieur (4) se rattachant à la paroi latérale (2), suivie d'au moins deux gradins (6, 6') et d'une partie dômée (8). Chaque gradin (6, 6') comporte une partie rectiligne (5', 5) formant un angle (2', 2) avec le plan vertical passant par l'axe vertical du récipient, puis une courbe aiguë dont la concavité est tournée vers l'extérieur. La partie dômée (8) forme une courbe douce dont la concavité est tournée vers l'extérieur.
PCT/US1993/004580 1992-06-02 1993-05-13 Recipient resistant au renflement WO1993024377A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US08/343,596 US5492245A (en) 1992-06-02 1993-05-13 Anti-bulging container
JP6500580A JP2980684B2 (ja) 1992-06-02 1993-05-13 膨出防止容器
BR9306481A BR9306481A (pt) 1992-06-02 1993-05-13 Recipiente anti-abaulamento

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP92201566.4 1992-06-02
EP92201566A EP0572722B1 (fr) 1992-06-02 1992-06-02 Récipient résistant à la déformation

Publications (1)

Publication Number Publication Date
WO1993024377A1 true WO1993024377A1 (fr) 1993-12-09

Family

ID=8210643

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1993/004580 WO1993024377A1 (fr) 1992-06-02 1993-05-13 Recipient resistant au renflement

Country Status (13)

Country Link
EP (1) EP0572722B1 (fr)
JP (1) JP2980684B2 (fr)
AT (1) ATE148668T1 (fr)
BR (1) BR9306481A (fr)
CA (1) CA2137146C (fr)
DE (1) DE69217358T2 (fr)
DK (1) DK0572722T3 (fr)
ES (1) ES2097268T3 (fr)
GR (1) GR3022504T3 (fr)
IE (1) IE930416A1 (fr)
MA (1) MA22899A1 (fr)
TR (1) TR27426A (fr)
WO (1) WO1993024377A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995025041A1 (fr) * 1994-03-16 1995-09-21 Societe Anonyme Des Eaux Minerales D'evian Bouteille moulee en matiere plastique et moule de fabrication

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK0751071T3 (da) 1995-06-26 2002-03-18 Procter & Gamble Beholder til væskeformige produkter
US9150320B2 (en) * 2011-08-15 2015-10-06 Graham Packaging Company, L.P. Plastic containers having base configurations with up-stand walls having a plurality of rings, and systems, methods, and base molds thereof
FR2998877B1 (fr) * 2012-11-30 2014-12-26 Sidel Participations Recipient ayant un fond muni d'une voute a double decrochement
EP2764967B1 (fr) * 2013-02-06 2015-10-14 Sidel Participations Moule pour le soufflage d'un récipient remplissable à chaud à taux d'étirage accrus

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3409167A (en) * 1967-03-24 1968-11-05 American Can Co Container with flexible bottom
US4120419A (en) * 1976-02-23 1978-10-17 National Steel Corporation High strength seamless chime can body, sheet metal container for vacuum packs, and manufacture
US4147271A (en) * 1976-08-20 1979-04-03 Daiwa Can Company, Limited Drawn and ironed can body and filled drawn and ironed can for containing pressurized beverages
US4177746A (en) * 1976-07-29 1979-12-11 Reynolds Metals Company Method of forming a container
US4408698A (en) * 1980-11-24 1983-10-11 Ballester Jose F Novel cover and container assembly
US4542029A (en) * 1981-06-19 1985-09-17 American Can Company Hot filled container

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2382373A1 (fr) * 1977-03-02 1978-09-29 Solvay Corps creux en matiere thermoplastique
FR2429157A1 (fr) * 1978-06-21 1980-01-18 Carnaud Total Interplastic Nouveau fond de corps creux en matiere plastique et corps creux comportant un tel fond
US4197954A (en) * 1978-10-05 1980-04-15 Ethyl Development Corporation Container
FR2448480A1 (fr) * 1979-02-07 1980-09-05 Solvay Corps creux en matiere thermoplastique orientee

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3409167A (en) * 1967-03-24 1968-11-05 American Can Co Container with flexible bottom
US4120419A (en) * 1976-02-23 1978-10-17 National Steel Corporation High strength seamless chime can body, sheet metal container for vacuum packs, and manufacture
US4177746A (en) * 1976-07-29 1979-12-11 Reynolds Metals Company Method of forming a container
US4147271A (en) * 1976-08-20 1979-04-03 Daiwa Can Company, Limited Drawn and ironed can body and filled drawn and ironed can for containing pressurized beverages
US4408698A (en) * 1980-11-24 1983-10-11 Ballester Jose F Novel cover and container assembly
US4542029A (en) * 1981-06-19 1985-09-17 American Can Company Hot filled container

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995025041A1 (fr) * 1994-03-16 1995-09-21 Societe Anonyme Des Eaux Minerales D'evian Bouteille moulee en matiere plastique et moule de fabrication
FR2717443A1 (fr) * 1994-03-16 1995-09-22 Evian Eaux Min Bouteille moulée en matière plastique.
EP0673840A1 (fr) * 1994-03-16 1995-09-27 Societe Anonyme Des Eaux Minerales D'evian Bouteille moulée en matière plastique et moule de fabrication
US5713480A (en) * 1994-03-16 1998-02-03 Societe Anonyme Des Eaux Minerales D'evian Molded plastics bottle and a mold for making it

Also Published As

Publication number Publication date
DE69217358D1 (de) 1997-03-20
DK0572722T3 (da) 1997-04-01
EP0572722B1 (fr) 1997-02-05
JPH07507259A (ja) 1995-08-10
ES2097268T3 (es) 1997-04-01
CA2137146A1 (fr) 1993-12-09
IE930416A1 (en) 1993-12-15
JP2980684B2 (ja) 1999-11-22
EP0572722A1 (fr) 1993-12-08
TR27426A (tr) 1995-04-21
DE69217358T2 (de) 1997-06-26
GR3022504T3 (en) 1997-05-31
MA22899A1 (fr) 1993-12-31
ATE148668T1 (de) 1997-02-15
BR9306481A (pt) 1998-09-15
CA2137146C (fr) 1998-09-22

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