Opening arrangement

• US 5,884,837 A
• Filed: 09/29/1997
• Issued: 03/23/1999
• Est. Priority Date: 02/02/1996
• Status: Expired due to Fees

• Current Assignee: Tetra Laval Holdings & Finance SA (Tetra Laval Holdings BV)
• Original Assignee: Tetra Laval Holdings & Finance SA (Tetra Laval Holdings BV)
• Inventors: Andersson, Christer, Jacobsson, Kenth, Hesselroth, Hans
• Primary Examiner(s): Elkins, Gary E.
• Application Number:
  US08/939,163
• Time in Patent Office: 540 Days
• Field of Search: 229/204, 229/401, 30/2, 30/324, 206/216, 206/542
• US Class Current: 229/204
• CPC Class Codes: B65D 75/70 Rigid cutting or tearing devices
• CPC Class Codes: B65D 77/40 Rigid cutting or tearing devices

Abstract

The invention relates to an opening arrangement for single-use disposable packages (1) of the type which are manufactured from a continuous material web or a material sheet. The packaging material consists of a core of paper or paperboard to which are laminated different layers of thermoplastics and possibly a barrier layer, normally consisting of aluminium foil.

The opening arrangement includes a hole (2) made in the packaging material and at least covered by the inside layer or layers of the packaging material, a perforation line (3) which extends at least from one side of the hole (2), and an outer penetration device (4) applied on the outside of the packaging container (1). One end of the penetration device (4) is designed as a hook (11).

The penetration device (4) is intended to be broken free from the packaging container (1) and, with the tip (20) of the hook-shaped portion (12), the layers covering the hole (2) are penetrated. The penetration device (4) is thereafter pulled along the perforation line (3) thereby opening a large part of the packaging container side (5, 8 or 10).

Claims

1. An opening arrangement for a packaging container of the type which is manufactured from a material web or from a material sheet, the arrangement comprising a hole punched in the packaging material and covered at least by the inside layer or layers of the packaging material, a perforation line and an outer penetration device, wherein one end of the outer penetration device is designed as a hook, and the perforation line extends at least from one side of the punched hole.

2. The opening arrangement as claimed in claim 1, wherein the penetration device is applied on the outside of the packaging container.

3. The opening arrangement as claimed in claim 1, wherein the hook of the penetration device is disposed to penetrate the layer or layers covering the hole and thereafter to be pulled along the perforation line.

4. The opening arrangement as claimed in claim 2, wherein the penetration device is applied on the packaging container so that the tip of its hook is placed in register with the punched hole.

5. The opening arrangement as claimed in claim 4, wherein the penetration device consists of a gripping tab which in its one end displays said hook and which, by means of a bevel, is connected to an application tab.

6. The opening arrangement as claimed in claim 2, wherein the penetration device constitutes the one end of a spoon.

7. The opening arrangement as claimed in claim 6, wherein the shaft of the spoon is folded in towards the blade of the spoon, exposing the hook.

8. The opening arrangement as claimed in claim 6, wherein the hook constitutes a fixed continuation of the shaft of the spoon.