EP0521642A1 - Procédé de remplissage de boîtes et boîte utilisée par le procédé - Google Patents

Procédé de remplissage de boîtes et boîte utilisée par le procédé Download PDF

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Publication number
EP0521642A1
EP0521642A1 EP92305702A EP92305702A EP0521642A1 EP 0521642 A1 EP0521642 A1 EP 0521642A1 EP 92305702 A EP92305702 A EP 92305702A EP 92305702 A EP92305702 A EP 92305702A EP 0521642 A1 EP0521642 A1 EP 0521642A1
Authority
EP
European Patent Office
Prior art keywords
wall
stable shape
headspace
central panel
annular bead
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
EP92305702A
Other languages
German (de)
English (en)
Other versions
EP0521642B1 (fr
Inventor
John Edwin Divall
John Alfred Perigo
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.)
Crown Packaging UK Ltd
Original Assignee
CMB Foodcan PLC
CarnaudMetalbox PLC
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=10697844&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0521642(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by CMB Foodcan PLC, CarnaudMetalbox PLC filed Critical CMB Foodcan PLC
Publication of EP0521642A1 publication Critical patent/EP0521642A1/fr
Application granted granted Critical
Publication of EP0521642B1 publication Critical patent/EP0521642B1/fr
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
    • 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
    • B65D79/00—Kinds or details of packages, not otherwise provided for
    • B65D79/005—Packages having deformable parts for indicating or neutralizing internal pressure-variations by other means than venting
    • B65D79/0087—Packages having deformable parts for indicating or neutralizing internal pressure-variations by other means than venting the deformable part being located in a closure, e.g. in caps or lids
    • 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
    • B65D79/00—Kinds or details of packages, not otherwise provided for
    • B65D79/005—Packages having deformable parts for indicating or neutralizing internal pressure-variations by other means than venting
    • B65D79/008—Packages having deformable parts for indicating or neutralizing internal pressure-variations by other means than venting the deformable part being located in a rigid or semi-rigid container, e.g. in bottles or jars
    • B65D79/0081—Packages having deformable parts for indicating or neutralizing internal pressure-variations by other means than venting the deformable part being located in a rigid or semi-rigid container, e.g. in bottles or jars in the bottom part thereof

Definitions

  • the invention relates to the filling of cans and in particular to the filling of cans with a food or non-carbonated beverage.
  • DWI lightweight drawn and wall ironed
  • cans for the packaging of carbonated beverages.
  • Such cans consist of a one piece can body having a bottom wall and a cylindrical side wall, and a top can end which is seamed to the can body after filling.
  • the internal pressure generated by the carbon dioxide content of the product may be of the order of 2 bar above atmospheric pressure at ambient temperature.
  • This internal pressure by placing the can walls in tension, contributes significant strength to the very thin side walls of such cans protecting them from damage by denting during distribution and maximising their top-load strength. Whilst such cans are capable of containing internal pressure greater than 7 bar above atmospheric, they are very easily damaged if the internal pressure falls to less than 0.4 bar above atmospheric pressure.
  • Non-carbonated products are frequently hot-filled into cans and when such cans are cooled an internal vacuum is developed which dictates that the can walls should be relatively thick to withstand the vacuum without collapsing or panelling.
  • the 50 ml headspace When the end is applied to this can the 50 ml headspace will be filled with a mixture of permanent gasses and condensible vapours.
  • the permanent gasses will be principally Oxygen and Nitrogen from the atmosphere and the condensible vapour will be principally water vapour arising from the hot product.
  • the combined partial pressures of the headspace constituents will equal the prevailing atmospheric pressure, say 1.0 bar absolute, and the temperature of the mixture will be close to that of the product due to the convective heat transfer from the product to the constituents of the headspace confined by the side walls of the can.
  • the water vapour At 85°C the water vapour will comprise about 58% of the mixture and permanent gasses will constitute the remaining 42%.
  • the partial pressure of the water vapour will be 0.58 bar absolute and the partial pressure of the permanent gasses will be 0.42 bar absolute.
  • One such method as described in GB 2089191 A involves injecting a small quantity of liquid Nitrogen into the headsace of the can immediately prior to applying and double-seaming the ends.
  • This liquid Nitrogen injection process suffers a number of disadvatages.
  • the quantity of liquid Nitrogen which needs to be injected into each can is small and due to its extremely low temperature, difficult to handle and meter precisely. Thus there is significant variation in the quantities injected into successive cans.
  • the liquid Nitrogen begins to boil immediately it is injected into the warmer product especially if the liquid breaks up into smaller droplets and gas escapes from the can before the end can be applied and the double seam formation completed. This results in significant and sometimes unacceptable variation in the final internal can pressure between neighbouring cans.
  • the can is provided with at least one deformable wall element, generally in the top or bottom end of the can, which is deformed after filling and seaming to reduce the internal volume of the can and thus to increase the internal pressure.
  • this invention provides a method of filling a can with a non-carbonated product comprising, in sequence the steps of:
  • step (d) may comprise deforming of the bottom wall of the can body or alternatively deforming of the can end which closes the top of the can body or if desired deforming of both the bottom wall and can end.
  • a can body is provided with a bottom wall which has a convex base portion comprising an annulus surrounding an outwardly concave central panel and in step (d) pressure is applied to the central panel to deform said convex portion to a concave form which supports the central panel inside the side wall in the form of said second stable shape.
  • the can end comprises a peripheral double seam portion, a chuck wall depending from the inner periphery of the seam portion, an annular bead extending radially inwards from the chuck wall, an inner wall which extends from the annular bead towards the level of the seam portion to a radiused annulus which supports a central panel, and in step (d) pressure is applied to the central panel to deform the annular bead and inner wall until the centre panel is passed through the annular berad and the radiused annulus reversed to define with said inner wall said second stable shape.
  • the permanent gas is Nitrogen because it is readily available.
  • this invention provides a can end adapted for deformation from a first shape to a second shape, said first stable shape comprising a peripheral seam portion, a chuck wall dependent from the interior of the seam portion wall, an annular bead extending radially inwards from the chuck wall and an inner wall extending from the bead towards the level of the seam portion to a radiused annular which supports a central panel thereabove, said second stable shape comprising the peripheral seam portion and the chuck wall, said annular bead and at least part of the inner wall deformed to form a continuation of the chuck wall, from which depends the central panel at the level below that of the seam portion.
  • the can end may be of the easy opening type in which the central panel includes an openable portion defined by a line of weakness which may be opened by means of a lever or tab attached to the can end.
  • a can body having an end wall and a side wall upstanding from the periphery of the end wall, said end wall being adapted to permit deformation of the end wall from a first stable shape to a second stable shape, said first stable shape comprising an annular bead of arcuate cross section to join the bottom wall to the side wall, a convergent annulus extending axially and inwardly from the annular bead and side wall, and an outwardly concave central panel spanning the convergent annulus, said second stable shape comprising said annular bead, said convergent portion deformed to extend axially and radially inwards with respect to the side wall and said central panel so held within the compass of the side wall.
  • Fig.1 shows a can containing 330ml of a hot liquid product 1. at 85°C with a headspace 2 of 50 ml comprising 58% water vapour and 42% air. The can has been sealed at ambient pressure so the pressure in the headspace is atmospheric (1 bar absolute).
  • Fig.2 shows the same can after cooling to 5°C. The volume of the liquid has reduced by about 10 ml thus increasing the headspace to about 60 ml. The partial pressure of the water vapour becomes mimimal at this temperature and the partial pressure of the air is reduced by virtue of the cooling which it has undergone and by the increase in volume of the headspace through cooling of the product. Thus, the pressure in the headspace of the can as shown in Fig.2 is about 0.4 bar absolute, substantially less than atmospheric pressure.
  • a lightweight (DWI) can is unable to withstand any significant external pressure and will collapse causing panelling of the side wall.
  • Fig.3 and Fig.4 show similar views to those of Figs.1 and 2 in relation to a can having a deformable bottom wall. If this can is similarly filled but without undercover gassing and is then treated according to the prior art by being reduced in volume by 35 ml by deformation of the can base before being cooled to 5°C the pressure will still fall below 0.9 bar absolute. This is low enough to cause the collapse of the can wall.
  • the can headspace is flushed with nitrogen as the end is applied then at the instant of closure the partial pressure of nitrogen in the headspace will be close to 1.0 and the partial pressure of water vapour will be close to zero. Very quickly thereafter the water vapour pressure will regenerate to 0.58 bar absolute and the can will be pressurised to 1.58 bar absolute. When this can is reduced in volume by 35 ml by reformation of the base and then cooled to 5°C the pressure will fall only to 1.5 bar absolute. This is high enough to maintain tension in the can walls and thereby provide the strength necessary to avoid damage during distribution.
  • our test cans were made from drawn and wall ironed tinplate can bodies 65 mm x 115 mm tall, having a bottom wall thickness of 0.3 mm (0.012") and side wall thickness 0.13 mm (0.005") and total volume normally 380cl, which are used to pack 330 cl of liquid product leaving an ullage or headspace necessary for filling.
  • Fig.5 shows a can body on tooling which forms a defomable portion in the bottom wall thereof.
  • a standard can body is shown having a cylindrical side wall 5, a seaming flange 6 and a bottom end wall 3 including a domed central portion 7 and stacking bead 8.
  • the tooling shown comprises an upper punch tool 10, lower punch tool 11 and die 12. Downward movement of the upper punch tool 10 deforms the domed central portion 7 of the end wall 3 by bending over the die 12 into the generally convex shape shown in phantom in Fig.5.
  • the lower punch tool 11 supports part of the portion 7 during this deformation which creates a first stable shape of bottom comprising an annular bead of arcuate cross section joining the side wall to the bottom wall and a convergent annulus 13 extending axially and inwardly from the annular bead to support an outwardly concave central panel 7 spanning the annulus.
  • Fig.6 shows a seamed can on tooling which deformas the bottom wall back to its original shape.
  • the tooling comprises an upper member 15 which bears on the can end 16 and a lower punch tool 11 within a die 12 as before. Upward movement of the punch tool 11 deforms the can bottom to reduce the internal volume of the can by formation of a second stable shape comprising said annular bead, said convergent portion deformed to extend axially and radially inwards with respect to the side wall and said central panel so held within the compass of the side wall.
  • Fig.7 shows the top of a can body with a can end 16 located theron and held in place by a seaming chuck 20.
  • a punch 21 is located within the seaming chuck to act on the central panel 22 of the can end.
  • the can end can be seen to have a first stable shape comprising a peripheral seam portion 23 a chuck wall 24 dependent from the interior of the seam portion, an annular bead 25 extending radially from the chuck wall and an inner wall 26 extending from the bead 25 through the level of the seam portion to support the central panel 22.
  • Fig.8 shows the arrangement of Fig.7 after double seaming of the can end to the can body.
  • the punch 21 has also been moved downwards to deform the can end and to thereby reduce the internal volume of the can by formation of a second stable shape comprising the peripheral seam portion and chuck wall, the annular bead and at least part of the inner wall deformed to form a continuation of the chuck wall with the central panel now defining an outwardly concave surface.
  • centre panel 22 of the can end may be provided with an openable portion defined by a score line openable by means of a lever (not shown in Fig.9).
  • a lever not shown in Fig.9
  • One of the many known score and pull tab or lever combinations may be used.
  • the scored can end is made of aluminium having a thickness of 0.18 mm (0.011").
  • an unscored can end may be made from aluminium, tinplate or TFS.
  • Table 1 shows the absolute pressures expected to arise when a 380 ml can containing 330 ml of product is deformed to reduce its volume to 345 ml.
  • the effect of varying filling temperatures between 5°C and 100°C are represented vertically in each column and the effect of temperature change after the can has been closed is represented horizontally along each row.
  • Figs.10 shows another embodiment of the can end which the can end 30 comprises a peripheral cover hook 31, a frustoconical chuck wall 32 dependent from the inner periphery of the cover hook at an inclination of about 5°to a perpendicular to the plane of the can end, an annular reinforcing bead 33 of arcuate cross section extending radially inwards from the chuck wall, an inner wall 34 extending upwardly and inwardly fromthe inner periphery of the reinforcing bead, and a radiused annulus 35 which joins the inner wall 34 to a central panel 36 spanning the inner wall just below the top extremity of the cover hook.
  • the inclination of the inner wall is not critical and maybe between virtually vertical allowing for metal spring back, to as much as 30°.
  • the can end is resting on the flange of a can filled and undercover gassed can body having a like the can end 30A already attached to the other end of the side wall 37 by a double seam 37.
  • the centre panel 36A is inboard of the extremity of the double seam, this can body has the advantage that it rests on the seam, not the centre panel which may bulge during thermal processing to become vulnerable to impact and unable to stand upright.
  • chuck wall 32 reinforcing bead and inner reversed radiused annulus 35A wall having become a single continuum 40 of substantially frustoconical shape extending radially and axially into the can body to support the centre panel 36 inside the side wall 37 of the can against internal pressure generated in the can.
  • the centre panel may be flat as shown, or domed to increase its rigidity (not shown).
  • the top end of the can may be provided with a score line defining an openable portion.
  • the openable portion may, if desired, be provided with a known form of pull tab or lever attached to the can end by an integral rivet or adhesive bonding.
  • Adhesive bonding is particularly convenient if the can end is stamped from a laminate of sheet metal/polymeric film, eg. PET/metal/polypropylene and the tab is made of a like material so that like polymer film of the can end may be fused to like film of the tab or lever.
  • each can end suffers less deformation and the stroke of the initial can end forming press and can end deforming press used after filling, may shorter so that these presses can run at faster speeds.
  • the can end may be deformed in the double seaming machine.
  • one or both can ends may be deformed in a subsequent machine having a rotating turret provided with opposed pressure pads 41 actuated by cooperation of the turret rotation between fixed can profiles or a can profile and support pad if only one end is to be deformed.
  • Fig.11 shows in dashed lines a pressure pad 41 and a flat support pad 42 after deformation of the top can.
EP92305702A 1991-07-04 1992-06-22 Procédé de remplissage de boîtes et boîte utilisée par le procédé Revoked EP0521642B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB919114503A GB9114503D0 (en) 1991-07-04 1991-07-04 Filling cans
GB9114503 1991-07-04

Publications (2)

Publication Number Publication Date
EP0521642A1 true EP0521642A1 (fr) 1993-01-07
EP0521642B1 EP0521642B1 (fr) 1996-12-27

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ID=10697844

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92305702A Revoked EP0521642B1 (fr) 1991-07-04 1992-06-22 Procédé de remplissage de boîtes et boîte utilisée par le procédé

Country Status (10)

Country Link
EP (1) EP0521642B1 (fr)
JP (1) JPH05193694A (fr)
AT (1) ATE146737T1 (fr)
AU (1) AU649847B2 (fr)
DE (1) DE69216160T2 (fr)
ES (1) ES2095407T3 (fr)
GB (1) GB9114503D0 (fr)
MY (1) MY108295A (fr)
NZ (1) NZ243374A (fr)
SG (1) SG47745A1 (fr)

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US5804237A (en) * 1995-10-16 1998-09-08 George B. Diamond Method of and package for sterilized edible material
US6666933B2 (en) 1997-04-16 2003-12-23 Crown Cork & Seal Technologies Corporation Can end, and method of manufacture therefor
EP1500593A3 (fr) * 2003-07-24 2005-04-13 Shikoku Kakoki Co., Ltd. Procédé de fabrication d'un produit alimentaire dans un récipient et produit alimentaire dans ce récipient
WO2005040006A1 (fr) * 2003-10-29 2005-05-06 Crown Packaging Technology Inc Extremite de boite metallique
EP1641691A1 (fr) * 2003-07-07 2006-04-05 Bruce D. Jackson Dispositif de distribution refermable
WO2008058579A1 (fr) * 2006-11-17 2008-05-22 Huhtamaki Ronsberg, Zweigniederlassung Der Huhtamaki Deutschland Gmbh & Co. Kg Récipient, notamment récipient d'emballage souple du genre sachet tubulaire et/ou boîte
EP2161207A1 (fr) 2008-09-04 2010-03-10 Crown Packaging Technology, Inc Extrémité de boîte
US7717282B2 (en) 2000-08-31 2010-05-18 Co2 Pac Limited Semi-rigid collapsible container
US7926243B2 (en) 2009-01-06 2011-04-19 Graham Packaging Company, L.P. Method and system for handling containers
ITVR20100064A1 (it) * 2010-03-29 2011-09-30 Sacmi Imola Sc Procedimento per la formatura di contenitori di bevande in materiale metallico, in particolare in alluminio, e relativa apparecchiatura
US8323555B2 (en) 2006-04-07 2012-12-04 Graham Packaging Company L.P. System and method for forming a container having a grip region
CN102837850A (zh) * 2012-08-31 2012-12-26 奥瑞金包装股份有限公司 金属罐装饮料的注氮杀菌方法及金属罐装饮料
US8627944B2 (en) 2008-07-23 2014-01-14 Graham Packaging Company L.P. System, apparatus, and method for conveying a plurality of containers
US8747727B2 (en) 2006-04-07 2014-06-10 Graham Packaging Company L.P. Method of forming container
US8919587B2 (en) 2011-10-03 2014-12-30 Graham Packaging Company, L.P. Plastic container with angular vacuum panel and method of same
US8962114B2 (en) 2010-10-30 2015-02-24 Graham Packaging Company, L.P. Compression molded preform for forming invertible base hot-fill container, and systems and methods thereof
US9022776B2 (en) 2013-03-15 2015-05-05 Graham Packaging Company, L.P. Deep grip mechanism within blow mold hanger and related methods and bottles
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
US9522749B2 (en) 2001-04-19 2016-12-20 Graham Packaging Company, L.P. Method of processing a plastic container including a multi-functional base
US9624018B2 (en) 2002-09-30 2017-04-18 Co2 Pac Limited Container structure for removal of vacuum pressure
US9707711B2 (en) 2006-04-07 2017-07-18 Graham Packaging Company, L.P. Container having outwardly blown, invertible deep-set grips
US9764873B2 (en) 2005-10-14 2017-09-19 Graham Packaging Company, L.P. Repositionable base structure for a container
US9802730B2 (en) 2002-09-30 2017-10-31 Co2 Pac Limited Methods of compensating for vacuum pressure changes within a plastic container
US9969517B2 (en) 2002-09-30 2018-05-15 Co2Pac Limited Systems and methods for handling plastic containers having a deep-set invertible base
US9993959B2 (en) 2013-03-15 2018-06-12 Graham Packaging Company, L.P. Deep grip mechanism for blow mold and related methods and bottles
US10214407B2 (en) 2010-10-31 2019-02-26 Graham Packaging Company, L.P. Systems for cooling hot-filled containers
US10246238B2 (en) 2000-08-31 2019-04-02 Co2Pac Limited Plastic container having a deep-set invertible base and related methods
US10501225B2 (en) 2003-07-30 2019-12-10 Graham Packaging Company, L.P. Container handling system
US10836552B2 (en) 2007-02-09 2020-11-17 Co2Pac Limited Method of handling a plastic container having a moveable base
US11731823B2 (en) 2007-02-09 2023-08-22 Co2Pac Limited Method of handling a plastic container having a moveable base
US11897656B2 (en) 2007-02-09 2024-02-13 Co2Pac Limited Plastic container having a movable base

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US8127955B2 (en) 2000-08-31 2012-03-06 John Denner Container structure for removal of vacuum pressure
US8584879B2 (en) 2000-08-31 2013-11-19 Co2Pac Limited Plastic container having a deep-set invertible base and related methods
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CN1615252A (zh) 2001-12-14 2005-05-11 胡赫塔迈基德国有限及两合公司胡赫塔迈基龙斯贝格分公司 包装袋及制造这种包装袋的封口工具
WO2005087628A1 (fr) 2004-03-11 2005-09-22 Philip Sheets Procede et dispositif destines au transport de recipients de forme irreguliere
US7364047B2 (en) 2004-05-27 2008-04-29 Zweigniederlassung Der Huhtamaki Deutschaland, Gmbh & Co. Kg Tubular, especially can-shaped, receptacle for the accommodation of fluids, a method of manufacture, and use
DE602005002878T2 (de) 2004-06-26 2008-07-24 CROWN Packaging Technology, Inc, Alsip Dosendeckel
DE102005006827A1 (de) 2004-11-04 2006-05-24 Huhtamaki Ronsberg, Zweigniederlassung Der Huhtamaki Deutschland Gmbh & Co. Kg Verfahren zur Herstellung eines flaschen- oder schlauchartigen Behälters, insbesondere Schlauchbeutels, mit einem eingesiegelten Boden sowie entsprechend hergestellter Schlauchbeutel
US8075833B2 (en) 2005-04-15 2011-12-13 Graham Packaging Company L.P. Method and apparatus for manufacturing blow molded containers
DE202004021343U1 (de) 2005-04-18 2007-10-25 Huhtamaki Ronsberg, Zweigniederlassung Der Huhtamaki Deutschland Gmbh & Co. Kg Bedrucktes Trägersubstrat
JP4537278B2 (ja) * 2005-07-15 2010-09-01 株式会社日立産機システム タンクの底板構造
US7799264B2 (en) 2006-03-15 2010-09-21 Graham Packaging Company, L.P. Container and method for blowmolding a base in a partial vacuum pressure reduction setup
US8047388B2 (en) * 2008-12-08 2011-11-01 Graham Packaging Company, L.P. Plastic container having a deep-inset base
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GB2134496A (en) * 1983-02-08 1984-08-15 Asahi Breweries Ltd Method of filling cans with substantially non-carbonated drinks
US4836398A (en) * 1988-01-29 1989-06-06 Aluminum Company Of America Inwardly reformable endwall for a container

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GB2050319A (en) * 1979-05-31 1981-01-07 Metal Box Co Ltd Applying closures to product- filled deformable containers

Patent Citations (5)

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Publication number Priority date Publication date Assignee Title
GB1235060A (en) * 1968-12-30 1971-06-09 Carnaud & Forges Improvements in or relating to can sterilising
GB2089191A (en) * 1980-12-10 1982-06-23 Toyo Seikan Kaisha Ltd Method and apparatus for making a hermetically sealed food container
GB2124597A (en) * 1982-07-30 1984-02-22 Vaux Breweries Plc Lightweight cans for still liquids such as fruit juices and methods of manufacture thereof
GB2134496A (en) * 1983-02-08 1984-08-15 Asahi Breweries Ltd Method of filling cans with substantially non-carbonated drinks
US4836398A (en) * 1988-01-29 1989-06-06 Aluminum Company Of America Inwardly reformable endwall for a container

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* Cited by examiner, † Cited by third party
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US5804237A (en) * 1995-10-16 1998-09-08 George B. Diamond Method of and package for sterilized edible material
US6666933B2 (en) 1997-04-16 2003-12-23 Crown Cork & Seal Technologies Corporation Can end, and method of manufacture therefor
US7717282B2 (en) 2000-08-31 2010-05-18 Co2 Pac Limited Semi-rigid collapsible container
US10246238B2 (en) 2000-08-31 2019-04-02 Co2Pac Limited Plastic container having a deep-set invertible base and related methods
US9688427B2 (en) 2000-08-31 2017-06-27 Co2 Pac Limited Method of hot-filling a plastic container having vertically folding vacuum panels
US8047389B2 (en) 2000-08-31 2011-11-01 Co2 Pac Limited Semi-rigid collapsible container
US9522749B2 (en) 2001-04-19 2016-12-20 Graham Packaging Company, L.P. Method of processing a plastic container including a multi-functional base
US9969517B2 (en) 2002-09-30 2018-05-15 Co2Pac Limited Systems and methods for handling plastic containers having a deep-set invertible base
US9878816B2 (en) 2002-09-30 2018-01-30 Co2 Pac Ltd Systems for compensating for vacuum pressure changes within a plastic container
US11377286B2 (en) 2002-09-30 2022-07-05 Co2 Pac Limited Container structure for removal of vacuum pressure
US9624018B2 (en) 2002-09-30 2017-04-18 Co2 Pac Limited Container structure for removal of vacuum pressure
US9802730B2 (en) 2002-09-30 2017-10-31 Co2 Pac Limited Methods of compensating for vacuum pressure changes within a plastic container
US10351325B2 (en) 2002-09-30 2019-07-16 Co2 Pac Limited Container structure for removal of vacuum pressure
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Also Published As

Publication number Publication date
AU649847B2 (en) 1994-06-02
NZ243374A (en) 1994-04-27
DE69216160T2 (de) 1997-05-07
ES2095407T3 (es) 1997-02-16
JPH05193694A (ja) 1993-08-03
DE69216160D1 (de) 1997-02-06
GB9114503D0 (en) 1991-08-21
MY108295A (en) 1996-09-30
EP0521642B1 (fr) 1996-12-27
AU1852292A (en) 1993-01-07
SG47745A1 (en) 1998-04-17
ATE146737T1 (de) 1997-01-15

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