Cardboard container for drinks and process therefor

• US 20060186012A1
• Filed: 04/21/2006
• Published: 08/24/2006
• Est. Priority Date: 01/30/2001
• Status: Active Grant

• Current Assignee: Seda S.p.A.
• Original Assignee: Seda S.p.A.
• Inventors: D'Amato, Gianfranco
• Granted Patent: US 8,146,796 B2
• Time in Patent Office: Days
• US Class Current: 206/505
• CPC Class Codes: B31B 2105/00 Rigid or semi-rigid containers made by assembling separate sheets, blanks or webs
• CPC Class Codes: B31B 2105/001 made from laminated webs, e.g. including laminating the webs
• CPC Class Codes: B31B 2105/0022 Making boxes from tubular webs or blanks, e.g. with separate bottoms, including tube or bottom forming operations
• CPC Class Codes: B31B 2120/002 having contracted or rolled necks, having shoulders
• CPC Class Codes: B31B 50/254 using tools mounted on belts or chains
• CPC Class Codes: B31B 50/256 using tools mounted on a drum
• CPC Class Codes: B31B 50/28 around mandrels, e.g. for forming bottoms
• CPC Class Codes: B31B 50/81 Forming or attaching accessories, e.g. opening devices, closures or tear strings
• CPC Class Codes: B31F 1/0038 Rim-rolling
• CPC Class Codes: B31F 1/10 by rotary tools
• CPC Class Codes: B65D 21/0233 Nestable containers
• CPC Class Codes: B65D 3/22 with double walls; with walls incorporating air-chambers; with walls made of laminated material for thermal insulating purposes B65D81/3818
• CPC Class Codes: B65D 81/3869 formed with double walls, i.e. hollow

Abstract

A cardboard container for drinks and a process for making it is provided. The container has a perimetral wall (2) and a bottom wall and includes elements (4) for supporting another such container (1) nested inside.

Claims

1. A cardboard container (1) having a perimetral wall (2), a bottom wall and an outside wall (7) surrounding said perimetral wall (2) with a heat-insulating air gap being defined between said outside wall (7) and said perimetral wall (2), wherein said perimetral wall (2) comprises at least one inwardly extending projection (4) for supporting a further container when stackedly arranged inside said container (1).

2. The container (1) according to claim 1, wherein said projection (4) is integrally formed with said perimetral wall (2).

3. The container (1) according to claim 1, wherein said outside wall (7) terminates a distance above said bottom wall and intermediate a vertical extent of said perimetral wall (2).

4. The container (1) according to claim 1, wherein said projection (4) is a creasing perimetrally formed on said perimetral wall (2).

5. The container (1) according to claim 4, wherein said creasing (4) is obtained in one or more circumference segments on said perimetral wall (2).

6. A process for manufacturing a cardboard container (1) which comprises the following steps:

providing a blank (1);

obtaining a perimetral creasing (4) on said blank (1) onto a surface forming a wall of said container; and

assembling said blank so as to manufacture said container (1);

wherein said cardboard container has a perimetral wall (2), a bottom wall and an outside wall (7) surrounding said perimetral wall (2) with a heat-insulating air gap being defined between said outside wall (7) and said perimetral wall (2), wherein said perimetral wall (2) comprises said perimetral creasing (4) as an inwardly extending projection for supporting a further container when stackedly arranged inside said container (1).

7. A process for manufacturing a cardboard container (1), which comprises the following steps:

providing a blank (1);

arranging said blank (1) on a revolving supporting member (5) to form said container (1);

forming a perimetral creasing (4) during formation of said container (1) with a related complementary knurl (6) adapted to cooperate with said supporting member (5);

wherein said cardboard container has a perimetral wall (2), a bottom wall and an outside wall (7) surrounding said perimetral wall (2) with a heat-insulating air gap being defined between said outside wall (7) and said perimetral wall (2), wherein said perimetral wall (2) comprises said perimetral creasing (4) as an inwardly extending projection for supporting a further container when stackedly arranged inside said container (1).