EP0108462A1 - Preserving tin - Google Patents

Preserving tin Download PDF

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Publication number
EP0108462A1
EP0108462A1 EP83201583A EP83201583A EP0108462A1 EP 0108462 A1 EP0108462 A1 EP 0108462A1 EP 83201583 A EP83201583 A EP 83201583A EP 83201583 A EP83201583 A EP 83201583A EP 0108462 A1 EP0108462 A1 EP 0108462A1
Authority
EP
European Patent Office
Prior art keywords
tin
contraction
preserving
edges
wall
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
EP83201583A
Other languages
German (de)
French (fr)
Other versions
EP0108462B1 (en
Inventor
Johannes Adriaan Glerum
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.)
Thomassen and Drijver Verblifa NV
Original Assignee
Thomassen and Drijver Verblifa NV
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 Thomassen and Drijver Verblifa NV filed Critical Thomassen and Drijver Verblifa NV
Publication of EP0108462A1 publication Critical patent/EP0108462A1/en
Application granted granted Critical
Publication of EP0108462B1 publication Critical patent/EP0108462B1/en
Expired 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
    • B65D7/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal
    • B65D7/42—Details of metal walls
    • B65D7/44—Reinforcing or strengthening parts or members
    • B65D7/46—Corrugations
    • 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
    • B65D79/0084—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 sidewall or shoulder part thereof

Definitions

  • the invention relates to a preserving tin having a wall provided with a contraction extending around the circumference.
  • Such a wall-ironed container is known and used for packing inter alia products filled in the hot state.
  • the known tin tends to collapse, that is to say, to exhibit indentations in the body.
  • at least one contraction is provided, which serves as a reinforcing element.
  • the great disadvantage of such a contraction is that the axial resistance is drastically reduced so that the stacking height of the tins is limited.
  • the invention has for its object to construct a preserving tin in a manner such that there is no risk of collapsing, whilst nevertheless the axial resistance is fully maintained.
  • the invention proposes a preserving tin of the kind set forth in the preamble, in which the edges of the contraction are pressed substantially one against the other.
  • the or each contraction may be dimensioned such that after the tin is filled with a hot mass, the subsequent closure of the tin and the cooling of the filled tin the edges of the contraction are pressed against or substantially against one another by the subatmospheric pressure caused by cooling.
  • the edges of the contraction can be advantageously pressed towards one another either by a mechanical operation or under the influence of the pressure difference between the atmosphere and the interior of the tin. Since the volume of the tin is reduced, the pressure in the tin becomes accordingly higher so that a smaller wall thickness will be sufficient. In all cases the tin is stiffened axially and radially.
  • the distance 4' may even be zero.
  • the edges it is, however, sufficient for the edges to be relatively near one another so that when a stack is formed the edges are pressed against one another.
  • the invention is not limited to a preserving tin with only one recess of the kind described. Other numbers of recesses may be used.
  • the invention is not limited to the shape shown in the drawing. It is furthermore possible to subject the preserving tin to an aftertreatment such that the contraction formed is pressed substantially against the inner face of the cylinder wall. In this way a substantially flat wall can be obtained, which has nevertheless all technical advantages of the invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Stackable Containers (AREA)

Abstract

The invention relates to a preserving tin having a wall provided with a contraction extending around the circumference.
Such a wall-ironed container is known and used for packing inter-alia products filled in the hot state. As a result of the subatmospheric pressure occurring in the tin after closure and cooling the known tin tends to collapse, that is to say, to exhibit indentations in the body. For this purpose said, at least one contraction is provided, which serves as a reinforcing element. However, the great disadvantage of such a contraction is that the axial resistance is drastically reduced so that the stacking height of the tins is limited.
The invention has for its object to construct a preserving tin in a manner such that there is no risk of collapsing, whilst nevertheless the axial resistance is fully maintained. Thereto the invention proposes a preserving tin of the kind set forth in the preamble, in which the edges of the contraction are pressed substantially one against the other.

Description

  • The invention relates to a preserving tin having a wall provided with a contraction extending around the circumference.
  • Such a wall-ironed container is known and used for packing inter alia products filled in the hot state. As a result of the subatmospheric pressure occurring in the tin after closure and cooling the known tin tends to collapse, that is to say, to exhibit indentations in the body. For this purpose said, at least one contraction is provided, which serves as a reinforcing element. However, the great disadvantage of such a contraction is that the axial resistance is drastically reduced so that the stacking height of the tins is limited.
  • The invention has for its object to construct a preserving tin in a manner such that there is no risk of collapsing, whilst nevertheless the axial resistance is fully maintained. In this respect the invention proposes a preserving tin of the kind set forth in the preamble, in which the edges of the contraction are pressed substantially one against the other.
  • In general it will be necessary to exert an axial force on the preserving tin in order to cause the edges of the contraction to approach one another. This requires an additional production step. According to the invention, in order to avoid said additional production step, the or each contraction may be dimensioned such that after the tin is filled with a hot mass, the subsequent closure of the tin and the cooling of the filled tin the edges of the contraction are pressed against or substantially against one another by the subatmospheric pressure caused by cooling.
  • After the tin is filled and closed the edges of the contraction can be advantageously pressed towards one another either by a mechanical operation or under the influence of the pressure difference between the atmosphere and the interior of the tin. Since the volume of the tin is reduced, the pressure in the tin becomes accordingly higher so that a smaller wall thickness will be sufficient. In all cases the tin is stiffened axially and radially.
  • The invention will now be described more fully with reference to the drawing showing an arbitrary embodiment.
    • Fig. 1 a cylindrical preserving tin having a contraction extending around the circumference,
    • Fig. 2 a detail II of Fig. 1,
    • Fig. 3 the tin of Fig. 1 in the state in which the edges of the contraction are substantially pressed against one another and
    • Fig. 4 shows a cylindrical preserving tin 1 having a cylindrical wall 3 provided with a contraction 2 extending around the circumference.
    • Fig. 2 shows the contraction 2 on an enlarged scale. The arrows 4 indicate the distance between the edges of the contraction.
    • Fig. 3 shows the same tin 1. However, in the state shown in Fig. 3 the edges of the contraction 2 are pressed towards one another. To indicate the difference from Fig. 1 the contraction is designated by reference symbol 2f. It should be noted that pressing the edges towards one another may take place in a separate production step, in which an axial force is exerted on the tin either prior to or after filling and the closure thereof or as a result of the occurrence of subatmospheric pressure in the tin owing to filling the tin with a hot mass, the subsequent closure of the tin and the subsequent cooling of the filled tin.
    • Fig. 4 shows the contraction 2' on an enlarged scale. The distance 4' between the edges, as will be apparent from a comparison between 4 and 2, is appreciably smaller than the distance designated by 4 in Fig. 2. When stacking a plurality of tins, the edges can be pressed against one another so that the axial resistance becomes equal to that of a tin not provided with a contraction.
  • It is noted that the distance 4' may even be zero. For obtaining a satisfactory stackability it is, however, sufficient for the edges to be relatively near one another so that when a stack is formed the edges are pressed against one another.
  • The invention is not limited to a preserving tin with only one recess of the kind described. Other numbers of recesses may be used.
  • Other shapes of the contraction provide the same desired result. Therefore, the invention is not limited to the shape shown in the drawing. It is furthermore possible to subject the preserving tin to an aftertreatment such that the contraction formed is pressed substantially against the inner face of the cylinder wall. In this way a substantially flat wall can be obtained, which has nevertheless all technical advantages of the invention.

Claims (2)

1. A preserving tin having a wall provided with a contraction extending around the circumference characterized in that the edges of the contraction are pressed substantially one against the other.
2. A preserving tin as claimed in Claim 1 characterized in that the or each contraction is proportioned so that after filling the tin with a hot mass, the subsequent closure of the tin and the cooling of the filled tin the edges of the contraction are pressed substantially against one another by the subatmospheric pressure caused in the tin by cooling.
EP83201583A 1982-11-04 1983-11-01 Preserving tin Expired EP0108462B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8204283 1982-11-04
NL8204283A NL8204283A (en) 1982-11-04 1982-11-04 CANNED CAN.

Publications (2)

Publication Number Publication Date
EP0108462A1 true EP0108462A1 (en) 1984-05-16
EP0108462B1 EP0108462B1 (en) 1992-01-22

Family

ID=19840526

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83201583A Expired EP0108462B1 (en) 1982-11-04 1983-11-01 Preserving tin

Country Status (6)

Country Link
EP (1) EP0108462B1 (en)
AU (1) AU583469B2 (en)
CA (1) CA1242980A (en)
DE (1) DE3382498D1 (en)
DK (1) DK162344C (en)
NL (1) NL8204283A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990006263A1 (en) * 1988-11-30 1990-06-14 Hoechst Celanese Plastics Limited Container base of plastics
US5232121A (en) * 1987-07-30 1993-08-03 Crown Beverage Packaging, Inc. Collapsed body bead for improved sidewall integrity of metal can packages
EP2505508A1 (en) * 2011-03-31 2012-10-03 Ardagh MP Group Netherlands B.V. A container body, a container and a method of making a container body

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5137171A (en) * 1987-07-30 1992-08-11 Crown Beverage Packaging, Inc. Collapsed body bead for improved sidewall integrity of metal can packages

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3117873A (en) 1959-03-20 1964-01-14 Continental Can Co Package and method of forming same
FR1511724A (en) * 1966-03-01 1968-02-02 Thin-walled closable container, including packaging container
WO1981002415A1 (en) * 1980-02-25 1981-09-03 P Belokin Aluminum can with collapsible sidewall

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3117873A (en) 1959-03-20 1964-01-14 Continental Can Co Package and method of forming same
FR1511724A (en) * 1966-03-01 1968-02-02 Thin-walled closable container, including packaging container
WO1981002415A1 (en) * 1980-02-25 1981-09-03 P Belokin Aluminum can with collapsible sidewall

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5232121A (en) * 1987-07-30 1993-08-03 Crown Beverage Packaging, Inc. Collapsed body bead for improved sidewall integrity of metal can packages
WO1990006263A1 (en) * 1988-11-30 1990-06-14 Hoechst Celanese Plastics Limited Container base of plastics
EP2505508A1 (en) * 2011-03-31 2012-10-03 Ardagh MP Group Netherlands B.V. A container body, a container and a method of making a container body
WO2012130980A1 (en) * 2011-03-31 2012-10-04 Impress Group B.V. A container body and its method of making
CN103619716A (en) * 2011-03-31 2014-03-05 印普瑞思集团有限公司 A container body and its method of making
JP2014514967A (en) * 2011-03-31 2014-06-26 インプレス・グループ・ベスローテン・フエンノートシャップ Container body and manufacturing method thereof
US8939317B2 (en) 2011-03-31 2015-01-27 Impress Group B.V. Container body and its method of making
CN103619716B (en) * 2011-03-31 2015-09-02 印普瑞思集团有限公司 Container body and manufacture method thereof
EA025750B1 (en) * 2011-03-31 2017-01-30 Импресс Груп Б.В. Container body and method of making same

Also Published As

Publication number Publication date
EP0108462B1 (en) 1992-01-22
NL8204283A (en) 1984-06-01
DK484083A (en) 1984-05-05
AU583469B2 (en) 1989-05-04
AU2044083A (en) 1984-05-10
CA1242980A (en) 1988-10-11
DK162344B (en) 1991-10-14
DK162344C (en) 1992-03-16
DK484083D0 (en) 1983-10-21
DE3382498D1 (en) 1992-03-05

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