EP0512832A2 - Deckel für einen Eimer - Google Patents

Deckel für einen Eimer Download PDF

Info

Publication number
EP0512832A2
EP0512832A2 EP92304118A EP92304118A EP0512832A2 EP 0512832 A2 EP0512832 A2 EP 0512832A2 EP 92304118 A EP92304118 A EP 92304118A EP 92304118 A EP92304118 A EP 92304118A EP 0512832 A2 EP0512832 A2 EP 0512832A2
Authority
EP
European Patent Office
Prior art keywords
lid
pail
inclined portion
planar region
domed
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
EP92304118A
Other languages
English (en)
French (fr)
Other versions
EP0512832B1 (de
EP0512832A3 (en
Inventor
Jack Harley
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.)
Greif International Holding BV
Original Assignee
Koninklijke Emballage Industrie Van Leer BV
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 Koninklijke Emballage Industrie Van Leer BV filed Critical Koninklijke Emballage Industrie Van Leer BV
Publication of EP0512832A2 publication Critical patent/EP0512832A2/de
Publication of EP0512832A3 publication Critical patent/EP0512832A3/en
Application granted granted Critical
Publication of EP0512832B1 publication Critical patent/EP0512832B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B65D17/00—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions
    • B65D17/06—Integral, or permanently secured, end or side closures
    • B65D17/08—Closures secured by folding or rolling and pressing
    • B65D17/10—Closures secured by folding or rolling and pressing with interposed packing rings
    • 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

Definitions

  • This invention relates to a lid for a pail which is used for the storage and transportation of materials and which is especially useful in the transportation of dangerous goods such as paint.
  • the present invention seeks to provide a lid for fastening a pail body which is more secure than lids at present in use on conventional pails and is less susceptible to damage and leakage if dropped.
  • a lid is clamped to the head seam of the pail.
  • One such head seam is described in GB-A-2189229.
  • the head seam comprises a compound curl formed around the outside of the upper rim of the pail.
  • a channel is formed around the periphery of the lid with downwardly directed flanges located at intervals around the lid.
  • a sealing compound is run into the channel on the lid and the lid is clamped onto the curl on the pail by means of a clamping tool applied to the flanges, thus squeezing the channel onto the curl around the periphery of the pail to create a seal.
  • the present invention provides an improved lid compared with conventional lids.
  • a lid for attachment to the rim of a pail body comprising a central planar region, a plurality of concentric corrugations around the central region and an upstanding cylindrical wall portion, the upper extremity of which extends outwardly and then downwardly and has lugs at its outermost periphery, is characterised in that , an inclined portion is provided which extends in a direction generally from the plane of the said planar region and in a direction which, when the lid is attached to the pail body, is towards the inside of the pail body, with a stiffening fold around the outer circumference of the inclined portion connecting it to the upstanding cylindrical wall portion, and in that the shape of the inclined portion approximates to part of a dome which would be formed by the lid if the corrugations and the planar region were domed without significant stretching of the metal of the lid.
  • the inclined portion is either frusto-conical or part spherical.
  • a pail comprising a pail body to which is fixed a lid constructed in accordance with the present invention and this aspect is featured in following claim 5.
  • a pail shown in part in Figure 2, has a capacity of 20 litres and its body 10 is made from 27 gauge (0.43 mm thick) mild steel.
  • the first stage in the manufacture of the pail body 10 is a conventional procedure involving rolling to form a cylinder and crush welding to produce a longitudinal seam to form the pail body 10. Other welding techniques may be used to form this longitudinal seam.
  • the pail body 10 has a compound curl 12 formed at its upper rim exactly as described in GB-A-2189229, and a bottom wall 13 joined to the pail body 10 exactly as described in GB-A-2189215.
  • a lid 14 which is constructed in accordance with the present invention is shown in Figure 1 and comprises a metal disc (typically 27 gauge (0.43 mm thick) mild steel).
  • the lid 14 comprises a central generally planar region 15 and a plurality of concentric circular corrugations 16.
  • Around the circumference of the outermost of the corrugations 16 is an inclined portion 17 which extends from a ring 22 in a plane 18 which includes the planar region 15, generally outwardly and in a direction which, when the lid 14 is attached to the pail body 10, is towards the inside of the pail body.
  • a stiffening fold 19 which leads to an upstanding cylindrical wall 20 which is of the same diameter as that of the inside surface of the rim of the pail body 10, to which the lid is to be fixed.
  • the upper region of the wall portion 20 is curved outwardly and downwardly and has a series of lugs 21 formed at the outermost periphery of the lid 14.
  • the shape of the inclined portion 17 is very important.
  • the portion 17 may be frusto-conical or it may be part-spherical. In either case the shape approximates to that of part of an imaginary dome, based on that which would be formed by the lid if the corrugations 16 and the planar region 15 were domed without significant stretching of the metal of the lid.
  • the lid 14 of Figure 1 is offered to the curl 12 of the paid body 10 and the dimension D (see Figure 3) of the upstanding wall 20 is such that the planar region 15 lies in the plane 18 normal to the pail body 10 but below the lowest part of the compound curl 12.
  • a sealing compound 23 is placed in the recess formed in the lid 14 to form a seal between lid 14 and body 10 and the lugs 21 of the lid are clamped below the compound curl 12 of the pail body exactly as described in GB-A-2189229.
  • Figure 3 shows the lid 14 clamped in place on the top rim of the pail body 10.
  • the compound curl 12 tends to tighten the seal at the rim, as described in GB-A-2189229.
  • Any increase in pressure within the pail which is sufficient to cause the lid 14 to become domed, tends to bend the planar region 15 and straighten out at least some of the corrugations 16 to a shape which approximates to that of a dome with the inclined portion 17 becoming a part of the dome shape without significant distortion or rupture of the metal.
  • the domed shape is shown schematically at 30 in Figures 4 and 5.
  • FIG. 4 and 5 there is shown the lid 14 and top rim portion of the pail body after it has been subjected to an internal test pressure of 1.2 bar and dropped from a height of 1.8 metres on to its top rim.
  • the lid 14 has assumed a domed shape similar to that used on pressure vessels, which domed shape includes the vertical wall 20, the stiffening fold 19, the inclined portion 17, the corrugations 16 and the Vietnamesewhile planar region 15, and from Figure 5 that this has an indicated height of H which, in the case of one pail of 20 litres capacity tested, was some 70 mm. This doming has occurred without rupture of the metal of the lid, and the seal has remained substantially intact.
  • the gasket 23 is more likely to be blown out before the metal of the lid ruptures. This is not the case with conventional lids where the metal ruptures in regions 19 and 22 at significantly lower internal pressures and when dropped from much lower heights than 1.8 metres.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
EP92304118A 1991-05-07 1992-05-07 Deckel für einen Eimer Expired - Lifetime EP0512832B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB919109820A GB9109820D0 (en) 1991-05-07 1991-05-07 Lid for a pail
GB9109820 1991-05-07

Publications (3)

Publication Number Publication Date
EP0512832A2 true EP0512832A2 (de) 1992-11-11
EP0512832A3 EP0512832A3 (en) 1993-03-03
EP0512832B1 EP0512832B1 (de) 1994-04-13

Family

ID=10694550

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92304118A Expired - Lifetime EP0512832B1 (de) 1991-05-07 1992-05-07 Deckel für einen Eimer

Country Status (4)

Country Link
EP (1) EP0512832B1 (de)
DE (1) DE69200102T2 (de)
DK (1) DK0512832T3 (de)
GB (1) GB9109820D0 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0600323A1 (de) * 1992-12-01 1994-06-08 Dart Industries Inc. Behälter zur Lebensmittelbehandlung
WO2007088212A1 (en) * 2006-02-03 2007-08-09 Impress Metal Packaging S.A. Expandable container having lid for providing headspace control of a food can
JP2016120920A (ja) * 2014-12-24 2016-07-07 株式会社長尾製缶所 オープンペール缶用ラグ天板
WO2022091044A1 (en) * 2020-10-30 2022-05-05 C-Loop Packaging Sweden Ab Patterned can end modular dispensing systems with enhanced recyclability

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989005758A1 (en) * 1987-12-24 1989-06-29 Rheem Australia Limited Pail lid and closure
EP0415819A1 (de) * 1989-08-29 1991-03-06 Carnaudmetalbox Metalldeckel für gasdichte Behälter

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989005758A1 (en) * 1987-12-24 1989-06-29 Rheem Australia Limited Pail lid and closure
EP0415819A1 (de) * 1989-08-29 1991-03-06 Carnaudmetalbox Metalldeckel für gasdichte Behälter

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0600323A1 (de) * 1992-12-01 1994-06-08 Dart Industries Inc. Behälter zur Lebensmittelbehandlung
WO2007088212A1 (en) * 2006-02-03 2007-08-09 Impress Metal Packaging S.A. Expandable container having lid for providing headspace control of a food can
EA012404B1 (ru) * 2006-02-03 2009-10-30 Импресс Метал Пэкиджинг С.А. Расширяющийся контейнер с крышкой для управления объемом свободного пространства в пищевой банке
EP2497718A3 (de) * 2006-02-03 2012-11-07 Ardagh MP West France S.A. Abdeckplatte für einen dehnbaren Behälter zur Bereitstellung von Kopfraumsteuerung einer Lebensmitteldose
US10017313B2 (en) 2006-02-03 2018-07-10 Ardagh Mp Group Netherlands B.V. Expandable container having lid for providing headspace control in a food can
JP2016120920A (ja) * 2014-12-24 2016-07-07 株式会社長尾製缶所 オープンペール缶用ラグ天板
WO2022091044A1 (en) * 2020-10-30 2022-05-05 C-Loop Packaging Sweden Ab Patterned can end modular dispensing systems with enhanced recyclability

Also Published As

Publication number Publication date
EP0512832B1 (de) 1994-04-13
DE69200102T2 (de) 1994-10-13
DK0512832T3 (da) 1994-08-15
EP0512832A3 (en) 1993-03-03
DE69200102D1 (de) 1994-05-19
GB9109820D0 (en) 1991-06-26

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