US 4,813,545 A · Rectangular paperboard package

Abstract

A rectangular paperboard package is fabricated from a single precut and prescored blank of paperboard material. The package includes a top panel having first and second side panels having upper edges connected to opposite parallel edges of the top panel. The first and second side panels are each provided with front extension portions which cooperate to define a front panel and are sealingly connected to define a vertically extending front fin seal. The side panels are further provided with rear extension portions which cooperate to define a rear panel and are sealingly connected to define a vertically extending rear fin seal. The top panel includes front and rear extension portions which cooperate with upper extension portions of the front and rear panels to define front and rear top fin seals. The bottom panel of the package is formed by cooperating lower extension portions of the first and second side panels which define an intermediate bottom fin seal. The bottom panel includes front and rear extension portions which cooperate with lower extension portions of the front and rear panels to define front and rear bottom fin seals. The various extension portions are designed to effectively protect each associated fin seal, to provide smooth planar surfaces for printing purposes, and to increase the overall rigidity of the package. Also, the preferred embodiment of the package is provided with a unique tear away opening feature. The package can be utilized to package a wide variety of products including liquid drinks, frozen concentrated drinks, motor oil, granular material, and containers which have previously been filled with a product.

Claims69

Dependent claims

A package comprising:

a generally parallelepiped container including a top panel and a front panel, said top panel having a front marginal edge located adjacent an upper marginal edge of said front panel;
said top panel including a first extension portion extending outwardly from said front marginal edge;
said front panel including a second extension portion extending outwardly from said upper marginal edge;
said first and second extension portions having inner surfaces sealingly connected to define a front seal line at the juncture of said front marginal edge of said top panel and said upper marginal edge of said front panel, said first and second extension portions being folded downwardly against said front panel;
one of said first and second extension portions secured to an outer surface of said front panel.

2 more elements

A package comprising:

a generally parallelepiped container including parallel and spaced apart front and rear panels connecting parallel and spaced apart first and second side panels;
said front panel formed by a first extension portion extending from a front marginal edge of said first side panel and by a second extension portion extending from a front marginal edge of said second side panel;
said first and second extension portions having inner surfaces sealingly connected to form a front seal line located in said front panel;
said first extension portion extending from said front seal line a distance longer than said second extension portion;
said rear panel formed by a third extension portion extending from a rear marginal edge of one of said first and second side panels and by a fourth extension portion extending from a rear marginal of the other one of said first and second side panels;
said third and fourth extension portions having inner surfaces sealingly connected to form a rear seal line located in said rear panel;
and
said third extension portion extending from said rear seal line a distance longer than said fourth extension portion.

5 more elements

A package comprising:

a generally parallelepiped container including parallel and spaced apart front and rear panels connecting parallel and spaced apart first and second side panels, and a bottom panel connected to a lower marginal edge of each of said front, rear, and first and second side panels;
said front, rear, and first and second side panels each including an extension portion extending from a lower marginal edge thereof;
said bottom panel being formed in part by folding said first and second side panel extension portions inwardly toward one another, first and second side panel extension portions being sealingly connected together to define a first bottom seal line;
said bottom panel provided with a front extension portion extending from a front marginal edge thereof located adjacent the lower marginal edge of said front panel;
said front panel extension portion and said front extension portion of said bottom panel being sealingly connected to define a second bottom seal line located along the juncture of said front marginal edge of said bottom panel and said lower marginal edge of said front panel.

2 more elements

A package comprising:

a generally parallelepiped container including parallel and spaced apart front and rear panels connecting parallel and spaced apart first and second side panels, a top panel coupled to the upper ends of said front, rear, and first and second side panels, and a bottom panel coupled to the lower ends of said front, rear and first and second side panels;
said front panel being formed by a first front extension portion extending from a front side marginal edge of said first side panel and by a second front extension portion extending from a front side marginal edge of said second side panel;
said first and second front extension portions having inner surfaces sealingly connected to form a front fin seal located in said front panel;
said rear panel being formed by a first rear extension portion extending from a rear side marginal edge of said first side panel and by a second rear extension portion extending from a rear side marginal edge of said second side panel;
said first and second rear extension portions having inner surfaces sealingly connected to form a rear fin seal located in said rear panel;
said top panel having an outer front marginal edge located adjacent an upper front marginal edge of said front panel;
said top panel including a front top extension portion extending from said outer front marginal edge;
said front panel including an upper extension portion extending from said upper front marginal edge;
said front top extension portion of said top panel and said upper extension portion of said front panel being sealingly connected to define a front top fin seal at the juncture of said outer front marginal edge of said top panel and said upper front marginal edge of said front panel;
said top panel having an outer rear marginal edge located adjacent an upper rear marginal edge of said rear panel;
said top panel including a rear top extension portion extending from said outer rear marginal edge;
said rear panel including an upper rear extension portion extending from said upper rear marginal edge;
said rear top extension portion of said top panel and said upper rear extension portion of said rear panel being sealingly connected to define a rear top fin seal at the juncture of said outer rear marginal edge of said top panel and said upper rear marginal edge of said front panel;
and
said bottom panel being attached to the lower marginal edges of said front, rear, and first and second side panels.

12 more elements

A blank of flexible packaging sheet material for constructing a container comprising:

a rectangular top panel defining first and second spaced apart and a parallel side marginal edges connecting spaced apart and parallel front and rear marginal edges;
a rectangular first side panel defining spaced apart and parallel front and rear marginal edges connected by spaced apart and parallel upper and lower marginal edges, said upper marginal edge of said first side panel foldably connected to said first side marginal edge of said top panel;
a rectangular second side panel defining spaced apart and parallel front and rear marginal edges connected by spaced apart and parallel upper and lower marginal edges, said upper marginal edge of said second side panel foldably connected to said second side marginal edge of said top panel;
a first front panel portion foldably connected to said front marginal edge parallel to and spaced from said front marginal edge of said first side panel by a first predetermined distance;
a second front panel portion foldably connected to said front marginal edge of said second side panel and having a second outer marginal edge parallel to and spaced from said front marginal edge of said second side panel by a second predetermined distance greater than said first predetermined distance;
a first rear panel portion foldably connected to said rear marginal edge of one of said first and second side panels;
a second rear panel portion foldably connected to said rear marginal edge of the other one of said first and second side panels;
a first bottom portion foldably connected to said lower marginal edge of said first side panel;
a second bottom panel portion foldably connected to said lower marginal edge of said second side panel;
a front panel extension portion foldably connected to said front marginal edge of said top panel;
and
a rear top panel extension portion foldably connected to said rear marginal edge of said top panel.

9 more elements

A package comprising:

a generally parallelepiped container including a top panel having spaced apart and parallel front and rear marginal edges connected by spaced apart and parallel first and second side marginal edges, said front marginal edge connecting first and second corners, said rear marginal edge connecting third and fourth corners, said first side marginal edge connecting said first and third corners, and said second marginal edge connecting said second and fourth corners;
said container further including a front panel having an upper marginal edge connected to said front marginal edge of said top panel, a rear panel having an upper marginal edge connected to said rear marginal edge of said top panel, a first side panel having an upper marginal edge connected to said first side marginal edge of said top panel, and a second side panel having an upper marginal edge connected to said second side marginal edge of said top panel;
said container further including tear line means having first and second tear lines located in said top panel and a third tear line located along said front side marginal edge of said top panel;
said first tear line extending alongside said first side marginal edge of said top panel and originating adjacent said first corner and terminating adjacent said third corner, the portion of said first tear line located between said first and third corners being spaced from said first side marginal edge;
said second tear line extending alongside said second side marginal edge of said top panel and originating adjacent said second corner and terminating adjacent said fourth corner;
said third tear line originating adjacent said first corner and terminating adjacent said third corner;
said first, second, and third tear lines cooperating to define a portion of said container to be opened such that, when said first, second, and third tear lines are severed, said openable portion remains hingedly attached along said rear marginal edge of said top panel;
said first tear line and said first side marginal edge of said top panel cooperating to define a first ear portion which, after said openable portion is disconnected along said first, second, and third tear lines, enables said first ear portion to be hinged upwardly about said first side marginal edge to provide further access to the contents of the container through the top panel thereof.

5 more elements

A package comprising:

a generally parallelepiped container including a top panel having spaced apart and parallel front and rear marginal edges connected by spaced apart and parallel first and second side marginal edges, said front marginal edge connecting first and second corners, said rear marginal edge connecting third and fourth corners, said first side marginal edge connecting said first and third corners, and said second side marginal edge connecting said second and fourth corners;
said container further including a front panel having an upper marginal edge connected to said front marginal edge of said top panel, a rear panel having an upper marginal edge connected to said rear marginal edge of said panel, a first side panel having an upper marginal edge connected to said first side marginal edge of said top panel, and a second side panel having an upper marginal edge connected to said second side marginal edge of said top panel;
said container further including tear lines means having first and second tear lines located in said top panel and third tear line means located along said front side marginal edge of said top panel;
said first, second, and third tear lines cooperating to define a portion of said container to be opened;
said first tear line extending alongside said first side marginal edge of said top panel and originating adjacent said first corner and terminating adjacent said third corner;
said second tear line extending alongside said second side marginal edge of said top panel and originating adjacent said second corner and terminating adjacent said fourth corner;
said third tear line originating adjacent said first corner and terminating adjacent said third corner;
said first, second, and third tear lines cooperating to define a portion of said container to be opened such that, when said first, second, and third tear lines are severed, said openable portion remains hingedly attached along said rear marginal edge of said top panel;
an opening tab operatively connected to said openable portion of said top panel, at least a portion of said opening tab secured to said front panel and substantially covering said third tear line.

6 more elements

Dependencies are inferred from the claim text.

Rectangular paperboard package

Life of this patent

Rectangular paperboard package

Life of this patent

Abstract

Claims69