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US 4,053,103 AGranted
Hermetically sealed carton
AssigneeInternational Paper Company
InventorPaul Gaudish
Life of this patent
Estimating the term…
Abstract
In accordance with the present invention a paperboard container is provided with a hermetic end closure. The manufacturers flap, which is of unique construction, is foldably connected to an adjacent ungussetted panel. During the folding sequence, the manufacturers flap is sealed to a gussetted panel and the gussets at either end of the container are then caused to be moved outwardly to form projecting wings, and then the inner surfaces of the rib panels are brought into juxtaposed alignment for sealing engagement to form a continuous and uninterrupted hermetic closure.
Claims6
A container closure, including:
- a. a body portion comprising first, second, third and fourth foldably connected body panels, and a sealing flap foldably connected to said fourth body panel, the outer surface of said sealing flap being sealed to the inner surface of said first body panel;
- b. said closure having first and second triangular end panels foldably connected to said first and third body panels as extensions thereof, and first and second roof panels foldably connected to said second and fourth body panels as extensions thereof;
- c. said first triangular end panel connected to said first and second roof panels by a first pair of triangular fold-out panels extending therefrom;
- d. said second triangular end panel connected to said first and second roof panels by a second pair of triangular fold-out panels extending therefrom;
- e. said closure also having a side roof flap foldably connected to said sealing flap, the outer surface of said side roof flap being sealed to the inner surfaces of the extensions of said first body panel;
- f. said first pair of triangular fold-out panels having first and second rib panels foldably connected thereto;
- g. said first roof panel having a third rib panel foldably connected thereto;
- h. said second pair of triangular fold-out panels having fourth and fifth rib panels foldably connected thereto;
- i. said second roof panel having a sixth rib panel foldably connected thereto;
- j. said side roof flap having a seventh rib panel foldably connected thereto;
- k. consecutively numbered rib panels being foldably connected to one another, and the outer surface of said seventh rib panel being sealed to the inner surface of said first rib panel;
- l. said roof panels extending across an end of said body portion;
- m. said triangular end panels extending outward beyond said body to form projecting wings;
- n. said triangular fold-out panels overlying said triangular end panels;
- o. the inner surfaces of said second, third and fourth rib panels being sealed to the inner surfaces of said seventh, sixth, and fifth rib panels, respectively;
- whereby a continuous and uninterrupted hermetic closure extending the width of the container is formed.
13 more elements
A blank for a hermetically sealable paperboard container, said blank comprising, in combination,
- a. first, second, third and fourth body panels;
- b. a triangular end panel foldably connected to each end of said first and third body panels as an extension thereof;
- c. a roof panel foldably connected to each end of said second and fouth body panels as an extension thereof, the height of each roof panel being substantially one-half the width of said first and third body panels;
- d. a pair of triangular fold-out panels flanking each of said triangular end panels, said triangular fold-out panels connecting said triangular end panels with said roof panels;
- e. a pair of first rib panels foldably connected to each of said pairs of triangular foldout panels and extending therefrom;
- f. a second rib panel foldably connected to each of said roof panels as an extension thereof;
- g. a side sealing flap, having substantially the same dimensions as each of said first and third body panels, foldably connected to said fourth body panel;
- h. a side roof flap, consisting of a triangular end panel and a triangular fold out panel, foldably connected to each end of said side sealing flap as an extension thereof, the height of each of said side roof flaps being substantially equal to the height of each of the side roof panels;
- and
- i. a side rib panel foldably connected to each of said side roof flaps as an extension thereof, said side rib panels having substantially the same dimensions as said first rib panels.
7 more elements
Dependencies are inferred from the claim text.