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Container

A technology for containers and cans, which is applied in the field of assembly of formed cans and lid parts, and can solve problems such as irregular sealing surfaces, damaged foils, and peeled foils

Inactive Publication Date: 2009-03-25
CROWN PACKAGING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem with three-piece cans is that the welded side seams provide an irregular sealing surface for seaming
Although inexpensive to process, unfortunately when cans closed in this way are stacked together, the pressure of the upper can acts directly on the foil, risking damage to the foil
In addition, the foil is bonded to the sides of the can body, creating problems with irregular sealing surfaces as described above
[0009] Another problem of citing patent document 0004: EP0819086B (GRABHER, WERNER). Peel off the foil on the side wall of the container

Method used

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Examples

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Embodiment Construction

[0039] figure 1 and figure 2 Container 1 is shown. This container 1 is of the so-called “three-piece” type, comprising a cylindrical tank 2 closed at its lower end by a conventional closure 3 . The closure 3 is connected to the can body 2 by means of a double bead 4 . The radial expansion of the can body 2 at its upper end by an extent "a" (approximately 2 mm in this example) forms a stepped portion 5 and terminates at a flange or curved edge 6 .

[0040] The tank body 2 can be made of painted sheet metal with polypropylene mixed in the paint. The sheet metal can finally be formed into a cylinder (for example by welding) for use as a tank body. The welded side seams thus formed on the tank body are usually separately coated with a similar interior paint or polypropylene powder. Alternatively, the metal sheet can be coated with a conventional varnish and a special effect varnish, for example a varnish comprising a dispersing varnish, for coating only the tank walls and we...

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PUM

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Abstract

A container (1) particularly for food products comprising a metal can body (2) and a combination of a ring (12) and a foil membrane (14), the combination being attached to the can body, in which the ring is made of a plastics material, wherein the inside diameter of the plastic ring is no less than the inside diameter of the can body away from the attachment location of the ring on the can body .

Description

technical field [0001] The present invention relates to a container. In particular, it relates to a container comprising an assembly of a can and a closure member for a product such as food. The invention also includes a method of forming an assembly of can body and closure components. Background technique [0002] Cans used for food packaging are usually two- or three-piece, consisting of a cylindrical can body with a cylindrical or profiled / polygonal cross-section, having a base and being closed by a can lid, septum, film, screw cap or other closed. The base can be integral with the tank to form a so-called two-piece tank, or the tank can be formed from a sheet metal tube where the edges of the sheet metal are joined by welded side seams, with the ends subsequently closed to form a three-piece Can. [0003] A typical food jar closed with a lid that has a sealant within the curved edge of the lid hook portion of the lid to provide a tight seal curl, often referred to as...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65D8/22B65D17/50B65D21/02B65D77/20
CPCB65D77/202B65D21/0219B65D2517/5013B65D17/502B65D15/14
Inventor P·登伍迪P·马里奥特P·克莱顿J·布洛克
Owner CROWN PACKAGING TECH