Sealed package for pourable food products and packaging material for producing sealed packages for pourable food products

Patent metadata

Field	Value
Publication number	US-9327862-B2
Application number	US-201113519973-A
Country	US
Kind code	B2
Filing date	Apr 6, 2011
Priority date	Jun 7, 2010
Publication date	May 3, 2016
Grant date	May 3, 2016

Abstract

A sealed package for pourable food products, comprising a quadrangular bottom panel with opposite first front edge and a second rear edge; a quadrangular top panel opposite to bottom panel and comprises a third front edge and a fourth rear edge; a front panel between first and third edges; and a rear panel between second and fourth edges; the distance between first and third edges is smaller than the distance between second and fourth edges; top panel angled with respect to a first plane defined by first and second edges; first and third edge define a theoretical reference plane; front panel comprises opposite fifth and sixth edges between first and second edges; at least one of fifth and sixth front edge extends at least partially on opposite side of theoretical plane with respect to rear panel; front panel comprises at least a first region on opposite side of theoretical plane.

First claim

The invention claimed is:

1. A sealed package for pourable food products, comprising:
a quadrangular bottom panel which comprises a bottom front edge and a bottom rear edge opposite to one another;
a quadrangular top panel which is opposite to said bottom panel and comprises a top front edge and a top rear edge;
a front panel which extends between said bottom front edge and said top front edge;
a rear panel which extends between said bottom rear edge and said top rear edge;
two lateral panels opposite to each other, adjacent to said front and rear panel and extending each from said front panel to said rear panel;
the distance between said bottom front edge and said top front edge being smaller than the distance between said bottom rear edge and said top rear edge;
said top panel being angled with respect to a first theoretical reference plane defined by said bottom front edge and said bottom rear edge;
said bottom front edge and said top front edge defining a second theoretical reference plane;
said front panel comprising a first front lateral edge and a second front lateral edge which are opposite to one another and extend between said bottom front edge and said top front edge;
wherein at least one of said first front lateral edge and said second front lateral edge extends at least partially on the side of said second theoretical reference plane opposite said rear panel;
said front panel comprising at least a first region positioned on one side of said second theoretical reference plane such that said second theoretical reference plane is between said rear panel and said first region of said front panel;
said lateral panels being concave;
said front panel being curved outwardly of said second theoretical reference plane; and
said sealed package being formed from a sealed tube of sterilized sheet packaging material.

2. The sealed package as claimed in claim 1 , wherein said first region of said front panel is bounded by said top front edge.

3. The sealed package as claimed in claim 1 , wherein a whole said front panel extends on the one side of said second theoretical reference plane.

4. The sealed package as claimed in claim 1 , wherein said first front lateral edge and said second front lateral edge each comprise respective first portions which extend at increasing distances from said second theoretical reference plane, proceeding from said top front edge towards said bottom front edge.

5. The sealed package as claimed in claim 4 , wherein said first front lateral edge and said second front lateral edge each further comprise respective second portions which are joined to corresponding first portions and originate, on the opposite side to said corresponding first portions, from said bottom front edge;
said second portions extending at increasing distances from said second theoretical reference plane, proceeding from said bottom front edge towards said first portions.

6. The sealed package as claimed in claim 5 , wherein said first and second portions join at a first and a second point; said first and second points being arranged at the same distance from said bottom front edge and said top front edge and being connected by a segment;
said first portions converging towards one another from said top front edge towards said segment;
said second portions converging towards one another from said bottom front edge towards said segment.

7. The sealed package as claimed in claim 6 , wherein said front panel extends symmetrically about an axis; said axis joining a middle point of said bottom front edge, a middle point of said segment, and a middle point of said top front edge.

8. The sealed package as claimed in claim 1 , wherein said first front lateral edge and said second front lateral edge are the only edges extending between said bottom front edge and said top front edge;
said first front lateral edge and said second front lateral edge being separate and distinct from each other.

9. The sealed package as claimed in claim 1 , wherein said bottom rear edge and said top rear edge defines a third theoretical reference plane;
said rear panel comprising a first rear lateral edge and a second rear lateral edge which are opposite to one another and extend between said bottom rear edge and said top rear edge;
at least one of said first rear lateral edge and said second rear lateral edge extending at least partially on an other side of said second theoretical reference plane such that said second theoretical reference plane is between said front panel and said at least one of said first rear lateral edge and said second rear lateral edge.

10. The sealed package as claimed in claim 9 , wherein said first rear lateral edge and said second rear lateral edge are the only edges extending between said bottom rear edge and said top rear edge;
said first rear lateral edge and said second rear lateral edge being distinct and separate from each other.

11. The sealed package as claimed in claim 1 , wherein all sections of said package measured parallel to said bottom panel and between said bottom front edge and said top front edge have a constant perimeter.

12. The sealed package as claimed in claim 1 , wherein the angle between said first theoretical reference plane and said top panel ranges between 15 and 20 degrees.

13. The sealed package as claimed in claim 1 , wherein said rear panel is flat or convex.

14. A sheet packaging material for producing a sealed package of a pourable food product, comprising:
at least one first crease line and one second crease line;
said first crease line comprising a first portion which is adapted to define a top front edge of a top panel of said sealed package;
said second crease line comprising a second portion which is adapted to define a bottom front edge of a bottom panel of said sealed package;
a third crease line which extends between respective third portions of said first and second crease lines;
a fourth crease line which extends between respective fourth portions of said first and second crease lines;
said first crease line further comprising a fifth portion interposed between said first and respective third portions, and a sixth portion interposed between respective said first and fourth portions;
said second crease line further comprising a seventh portion interposed between said second and said respective third portions, and an eighth portion interposed between said second and said respective fourth portions;
said third and fourth crease lines, and said third and fourth portions being adapted to bound a rear panel of said package, once said packaging material has been folded along said third and fourth crease lines, and along said third and fourth portions;
said third and fourth portions of said first crease line being adapted to define a top rear edge of said sealed package;
said third and fourth portions of said second crease line being adapted to define a bottom rear edge of said sealed package; said second, third, and fourth portions of said second crease line defining a first theoretical reference plane once said packaging material has been folded along said second, third, and fourth portions;
the distance between said third and fourth portions being greater than the distance between said first and second portions, so that the distance between said top rear edge and said bottom rear edge is greater than the distance between said top front edge and said bottom front edge of said sealed package;
a fifth and a sixth crease lines extending, at least partially, within a first area which is bounded by a first reference theoretical segment and a second reference theoretical se

Assignees

• Barbieri Marcello
• Putzer Siegrid
• Olivieri Alice
• Pertusi Stefania
• Nassif Joyce
• Tetra Laval Holdings & Finance

Inventors

• Barbieri Marcello
• Putzer Siegrid
• Olivieri Alice
• Pertusi Stefania
• Nassif Joyce

Classifications

• B65D5/746

  Spouts formed separately from the container · CPC title

• B65B3/025

  Making parallelepipedal containers from a single carton blank · CPC title

• B65D5/064 Primary

  Rectangular containers having a body with gusset-flaps folded outwardly or adhered to the side or the top of the container · CPC title

• B65B9/067

  the web advancing continuously (B65B9/08 takes precedence) · CPC title

• B65D5/0209 Primary

  the tubular body having a curved or partially curved cross-section · CPC title