EP0144102B1 - Deckel für eine Konservendose - Google Patents
Deckel für eine Konservendose Download PDFInfo
- Publication number
- EP0144102B1 EP0144102B1 EP84201620A EP84201620A EP0144102B1 EP 0144102 B1 EP0144102 B1 EP 0144102B1 EP 84201620 A EP84201620 A EP 84201620A EP 84201620 A EP84201620 A EP 84201620A EP 0144102 B1 EP0144102 B1 EP 0144102B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- substantially flat
- top end
- tin
- shaped portion
- ring
- 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
Links
Images
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
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- 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
- B65D17/28—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness
- B65D17/401—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness characterised by having the line of weakness provided in an end wall
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- 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
- B65D7/12—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal characterised by wall construction or by connections between walls
- B65D7/34—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of metal characterised by wall construction or by connections between walls with permanent connections between walls
Definitions
- the invention relates to a closure end for a tin, can or similar container, provided with a circumferential rolled seaming edge surrounding an annular groove defining the perimeter of an end wall, said end wall being provided with a substantially flat, central, circular disc-shaped portion and at least one substantially flat, ring-shaped portion at the circumference of said disc-shaped portion, said substantially flat portions lying in planes at different levels, wherein the substantially flat, ring-shaped portion vicinal to the annular groove lies at a lower level than the rolled seaming edge and at a higher level than the adjacent inwards situated, substantially flat portion.
- the closure end is only preferably provided with said outwardly directed bead, the inwardly directed bead is always there, the difference in height between the central parts of the closure end and the seaming edge thus being extremely large.
- Such a strongly profiled closure end requires a lot of material and great pressure to press the closure end into said material.
- little surface remains for captions, codes and/or information, while pressing the many deformations require complicated dies. Creating great pressing force, using extra material for the closure ends and the need for complicated dies increase the costs, which is an important disadvantage in a disposable product.
- NL-C-72920 describes a closure end for a tin, can or similar container with a bead provided with undulations in order to attain extra stiffening of the bead, both bead and undulations serving to stiffen the closure end.
- a bead with undulations requires complicated dies plus great pressing force and extra material for pressing the closure end, which results in increased costs, which is an important disadvantage in a disposable product.
- closure end that can be manufactured at lower costs, which is an important asset for a disposable product.
- the closure end should be sufficiently rigid to avoid bulging of the closure end when the closed tin, can or similar container is under such high pressure as would e.g. occur while sterilizing this container and its contents.
- the invented closure end is characterized in that said annular groove lies directly adjacent to said vicinal, substantially flat, ring-shaped portion without bead between said groove and said portion, wherein said closure end may or may not have a tear line.
- a flat portion of the top end wall a flat or nearly flat (slightly conical) surface is meant that is parallel to or nearly parallel to the surface in which the seaming edge is situated.
- the top end according to the present invention has been especially designed for a tin with content which has to undergo a sterilization process.
- the product with which the tin has to be filled is either at room temperature or cold, and will have about the same pressure after sterilizing as during the filling of the tin.
- sterilizing pressures up to 2.5 atmospheres above atmospheric pressure arise inside the tin, so the top end has to be flexible, otherwise the seaming edge is overloaded, which may cause leakages.
- the present invention covers a flexible top end which, with the same thickness of sheet metal as with the known top ends, offers a larger resistance against bulging out and lasting deformation than the known top ends. By selecting a smaller material thickness, material can be saved whereas the resistance against bulging out and lasting deformation is as with known top ends.
- top end according to the invention can be made from a piece of material having a smaller surface, because it has less profiling than the top ends known.
- the present top end may be used for tins containing all kinds of sterilized or non-sterilized products which cause no or little underpressure in the tin when the product is cooled down to at least-room temperature.
- the top end according to fig. 1 and 2 has been provided with a circumfering groove 3 all round a ring-shaped flat surface 6 which is situated higher than the bottom of the circumfering groove 3, but lower than the top surface 4 of the seaming edge all round the circumfering groove.
- the distance (e) between the back side of surface 6 and the bottom surface of the circumfering groove 3 amounts to at least one-sixth. five-sixth at the most and preferably between one-third and two- third of the total height of the lid (h).
- a disc-shaped flat surface 2 is centrally situated within the ring-shaped surface 6 at a lower level with respect to said ring-shaped surface.
- the width of the circumfering groove 3 has to be at least sufficient for receiving seaming implements in order to seam the seaming edge 5 onto a cylinder wall to, in this way, attach the top end to the cylinder wall for manufacturing a tin, can or similar container.
- FIG. 3 and 4 another modification of the top end according to the present invention is shown, in which the only difference with respect to the modification according to figures 1 and 2 is that between the central surface 2 and the ring-shaped surface 6 adjacent to the circumfering groove a third flat surface 7 is present.
- This third surface 7 is situated lower than the ring-shaped surface 6 adjacent to the circumfering groove 3, whereas the central surface 2 may be situated higher than the third surface 7 as is indicated in fig. 4 with a line drawn, but the central surface 2 may also be situated lower than the third surface 7 as is indicated by a dotted line in fig. 4.
- top ends according to the present invention may be made of thin sheet metal, such as tin plate, electrolytically chromium coated steel (ECCS) or aluminium.
- thin sheet metal such as tin plate, electrolytically chromium coated steel (ECCS) or aluminium.
- the flat surfaces 2, 6 and 7 may also be slightly cone-shaped and/or may be provided with pouring indents, impressed inscriptions, rupture lines, pull tabs and/or pull rings which are known per se and therefore have not been indicated in the drawing.
- top end may be used as a bottom end as well for manufacturing a tin, can or similar container.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Containers With Two Or More Constituent Elements (AREA)
- Containers Opened By Tearing Frangible Portions (AREA)
- Control And Other Processes For Unpacking Of Materials (AREA)
Claims (1)
- Eine Schlusswand für eine Konservendose, Büchse oder einen derartigen Behälter, versehen mit einem Falzabdichtrand (5) den Umriss entlang und rundum eine ringförmige Rille (3) die den Rand bildet von einer Endwand, welche Endwand versehen ist mit einem im wesentlichen flachen, zentralen, kreisrunden, scheibenförmigen Teil (2), und mindestens einem im wesentlichen flachen, ringförmigen Teil (6, 7) am Umriss des scheibenförmigen Teils (2), wobei die im wesentlichen flachen Teile in Flächen auf verschiedenem Niveau liegen, wobei das im wesentlichen flache ringförmige Teil (6) nahe der ringförmigen Rille (3) auf einem niedrigeren Niveau als den Falzabdichtrand (5) und auf einem höheren Niveau als das angrenzende, einwärts liegende, im wesentlichen flache Teil (2 oder 7) liegt, dadurch gekennzeichnet, dass die ringförmige Rille (3), unmittelbar neben dem angrenzenden, im wesentlichen flachen, ringförmigen Teil (6) liegt ohne Rippe zwischen der Rille (3) und jenem Teil (6), wobei die Schlusswand versehen ist mit einer Reisslinie, oder nicht.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT84201620T ATE43550T1 (de) | 1983-11-16 | 1984-11-09 | Deckel fuer eine konservendose. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL8303931A NL8303931A (nl) | 1983-11-16 | 1983-11-16 | Felsdeksel voor konservenbus. |
NL8303931 | 1983-11-16 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0144102A1 EP0144102A1 (de) | 1985-06-12 |
EP0144102B1 true EP0144102B1 (de) | 1989-05-31 |
Family
ID=19842720
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP84201620A Expired EP0144102B1 (de) | 1983-11-16 | 1984-11-09 | Deckel für eine Konservendose |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0144102B1 (de) |
AT (1) | ATE43550T1 (de) |
CA (1) | CA1236781A (de) |
DE (1) | DE3478427D1 (de) |
NL (1) | NL8303931A (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005024219B3 (de) * | 2005-05-25 | 2006-07-13 | Ball Packaging Europe Gmbh | Deckel mit Führungssäulen für einen Behälter |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL72920C (de) * | 1900-01-01 | |||
US2119533A (en) * | 1937-05-10 | 1938-06-07 | Continental Can Co | Easy opening container |
GB1091194A (en) * | 1964-01-23 | 1967-11-15 | Carnation Co | Improvements in snap end metal cans |
US3912109A (en) * | 1973-11-15 | 1975-10-14 | American Can Co | Metal container and method for making same |
-
1983
- 1983-11-16 NL NL8303931A patent/NL8303931A/nl not_active Application Discontinuation
-
1984
- 1984-11-09 EP EP84201620A patent/EP0144102B1/de not_active Expired
- 1984-11-09 AT AT84201620T patent/ATE43550T1/de not_active IP Right Cessation
- 1984-11-09 DE DE8484201620T patent/DE3478427D1/de not_active Expired
- 1984-11-15 CA CA000467866A patent/CA1236781A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005024219B3 (de) * | 2005-05-25 | 2006-07-13 | Ball Packaging Europe Gmbh | Deckel mit Führungssäulen für einen Behälter |
Also Published As
Publication number | Publication date |
---|---|
NL8303931A (nl) | 1985-06-17 |
DE3478427D1 (en) | 1989-07-06 |
CA1236781A (en) | 1988-05-17 |
ATE43550T1 (de) | 1989-06-15 |
EP0144102A1 (de) | 1985-06-12 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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AK | Designated contracting states |
Designated state(s): AT BE DE FR GB LU NL SE |
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17P | Request for examination filed |
Effective date: 19851107 |
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26 | Opposition filed |
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GBPR | Gb: patent revoked under art. 102 of the ep convention designating the uk as contracting state | ||
NLR2 | Nl: decision of opposition | ||
BERE | Be: lapsed |
Owner name: COOPERATIEVE CONDENSFABRIEK 'FRIESLAND' W.A. Effective date: 19901130 |
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