US4655386A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Packing container blank and container made therefrom
Assignee: Tetra Pak AB
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Filing: 1986-01-02
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Granted: 1987-04-07
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Expires: 2006-01-02
Abstract
Abstract Packing container blanks for gable-top packages are cut out of a material web which, up to now, has caused an appreciable amount of waste material, since the edges of the blanks are irregular and cannot be "dovetailed" into one another. A packing container blank is provided with partly straight, parallel lateral edges (11,12), and partly transverse edges (11,12) which are indented according to a regular pattern which is repeated over the width of the blank. As a result of the indentations, the edges of the blanks too can be formed without wastage.
Inventors
- 👤 Alf Billberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:35
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/02; B65D5/06; B65D5/067; B31; B31B; B31B50/00; B31B50/14; B31B50/20; B65D2301/00; B65D2301/10; Y; Y10; Y10S; Y10S229/00; Y10S229/933; Y10S229/935
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
482 words
A one-piece blank foldable to form a packing container of the type having a gable top with a sealing fin extending along the top, comprising: a laminated material having an overall rectangular shape with two straight, parallel lateral edges and first and second transverse edges; said blank provided with four crease lines parallel to said lateral edges and dividing said blank into first, second, third and fourth sections of substantially equal width and a fifth section of reduced width; two parallel crease lines adjacent the first transverse edge, said parallel crease lines being perpendicular to and extending continuously between the lateral edges of the blank; wherein the material between the first transverse edge and the parallel crease line more adjacent the first transverse edge form the sealing fin of the packing container; a single crease line adjacent the second transverse edge, said single crease line being perpendicular to and extending continuously between the lateral edges; said first section and said third section each having a triangular backfolding panel between said two parallel crease lines; said second section and said fourth section each having a triangular backfolding panel between said single crease line and said second transverse edge; said first transverse edge having straight segments parallel to said two crease lines and spaced therefrom; said straight segments of said first transverse edge located in the second and fourth sections being spaced a greater distance from said parallel crease lines than the straight segments of said first transverse edge located in the first and third sections; said first transverse edge also having straight sloping transition segments along the first and third sections and between said straight segments; said second transverse edge having straight segments parallel to said single crease line and spaced therefrom; said straight segments of said second transverse edge located in the first and third sections being spaced a greater distance from said single crease line than the straight segments of said second transverse edge located in the second and fourth sections; said second transverse edge also having straight sloping transition segments along the first and third sections and between said straight segments; said straight and sloping transition segments of the first transverse edge being parallel to and conforming with said straight and sloping transition segments of the second transverse edge such that the first transverse edge of the one-piece blank can be cut from the second transverse edge of an identical one-piece blank with no scrap material being created therebetween; that portion of the blank between said crease line near the second transverse edge forming the bottom of the container; and the portion of the blank embracing said two parallel crease lines forming the gable top of the packing container; wherein said sloping transition segments form a gradual transition in the sealing fin from a quadruple thickness at the bottom of the fin to a double thickness at the top thereof.
Claim 2
Dependent Claim
482 words
A one-piece blank foldable to form a packing container of the type having a gable top with a sealing fin extending along the top, comprising: a laminated material having an overall rectangular shape with two straight, parallel lateral edges and first and second transverse edges; said blank provided with four crease lines parallel to said lateral edges and dividing said blank into first, second, third and fourth sections of substantially equal width and a fifth section of reduced width; two parallel crease lines adjacent the first transverse edge, said parallel crease lines being perpendicular to and extending continuously between the lateral edges of the blank; wherein the material between the first transverse edge and the parallel crease line more adjacent the first transverse edge form the sealing fin of the packing container; a single crease line adjacent the second transverse edge, said single crease line being perpendicular to and extending continuously between the lateral edges; said first section and said third section each having a triangular backfolding panel between said two parallel crease lines; said second section and said fourth section each having a triangular backfolding panel between said single crease line and said second transverse edge; said first transverse edge having straight segments parallel to said two crease lines and spaced therefrom; said straight segments of said first transverse edge located in the second and fourth sections being spaced a greater distance from said parallel crease lines than the straight segments of said first transverse edge located in the first and third sections; said first transverse edge also having straight sloping transition segments along the first and third sections and between said straight segments; said second transverse edge having straight segments parallel to said single crease line and spaced therefrom; said straight segments of said second transverse edge located in the first and third sections being spaced a greater distance from said single crease line than the straight segments of said second transverse edge located in the second and fourth sections; said second transverse edge also having straight sloping transition segments along the first and third sections and between said straight segments; said straight and sloping transition segments of the first transverse edge being parallel to and conforming with said straight and sloping transition segments of the second transverse edge such that the first transverse edge of the one-piece blank can be cut from the second transverse edge of an identical one-piece blank with no scrap material being created therebetween; that portion of the blank between said crease line near the second transverse edge forming the bottom of the container; and the portion of the blank embracing said two parallel crease lines forming the gable top of the packing container; wherein said sloping transition segments form a gradual transition in the sealing fin from a quadruple thickness at the bottom of the fin to a double thickness at the top thereof.
Claim 3
Dependent Claim
28 words
The one-piece blank according to claim 1 wherein said first and second transverse edges at said fifth section are aligned with said transverse edges at said fourth section.
Claim 4
Dependent Claim
23 words
The one-piece blank according to claim 1 wherein said four crease lines extend from said first transverse edge to said second transverse edge.
Claim 5
Dependent Claim
50 words
The one-piece blank according to claim 1 wherein a plurality of said blanks are joined continuously along said first and second transverse edges and along said lateral edges and upon cutting along said transverse and lateral edges, said blank is separated from adjacent blanks without forming scrap pieces of laminate.
Claim 6
Dependent Claim
332 words
A one-piece blank foldable to form a packing container of the type having a gable top with a sealing fin extending along the top, comprising: a laminated material having an overall rectangular shape with two straight, parallel lateral edges and first and second transverse edges; said blank provided with four crease lines parallel to said lateral edges and dividing said blank into first, second, third, fourth and fifth sections; the fifth section having a width less than the first section and forming a sealing panel; two parallel crease lines adjacent the first transverse edge, and a single crease line adjacent the second transverse edge, said crease lines being perpendicular to and extending to each of the lateral edges of the blank; the material between the two parallel crease lines forming the gable top of the packing carton; the material between the first transverse edge and the parallel crease line most adjacent the first transverse edge forming the sealing fin of the packing container; the material between the single crease line and the second transverse edge forming the bottom of the packing container; said transverse edges comprising straight segments in the second and fourth sections; said first transverse edge having recessed segments in the center of the first and third sections with sloping edges interconnecting the recessed segments with the straight segments of the second and fourth sections; said second transverse edge having extended segments in the first and third sections with sloping edges interconnecting the extended segments with the straight segments of the second and fourth sections; said first transverse edge being parallel to and conforming with said second transverse edge such that the first transverse edge of the one piece blank can be cut from the second transverse edge of an identical one-piece blank with no scrap material being created therebetween; wherein said sloping edges form a gradual transition in the sealing fin from a quadruple thickness at the bottom of the fin to a double thickness at the top thereof.
Claim 7
Dependent Claim
332 words
A one-piece blank foldable to form a packing container of the type having a gable top with a sealing fin extending along the top, comprising: a laminated material having an overall rectangular shape with two straight, parallel lateral edges and first and second transverse edges; said blank provided with four crease lines parallel to said lateral edges and dividing said blank into first, second, third, fourth and fifth sections; the fifth section having a width less than the first section and forming a sealing panel; two parallel crease lines adjacent the first transverse edge, and a single crease line adjacent the second transverse edge, said crease lines being perpendicular to and extending to each of the lateral edges of the blank; the material between the two parallel crease lines forming the gable top of the packing carton; the material between the first transverse edge and the parallel crease line most adjacent the first transverse edge forming the sealing fin of the packing container; the material between the single crease line and the second transverse edge forming the bottom of the packing container; said transverse edges comprising straight segments in the second and fourth sections; said first transverse edge having recessed segments in the center of the first and third sections with sloping edges interconnecting the recessed segments with the straight segments of the second and fourth sections; said second transverse edge having extended segments in the first and third sections with sloping edges interconnecting the extended segments with the straight segments of the second and fourth sections; said first transverse edge being parallel to and conforming with said second transverse edge such that the first transverse edge of the one piece blank can be cut from the second transverse edge of an identical one-piece blank with no scrap material being created therebetween; wherein said sloping edges form a gradual transition in the sealing fin from a quadruple thickness at the bottom of the fin to a double thickness at the top thereof.
Claim 8
Dependent Claim
19 words
The one-piece blank according to claim 5, wherein said first, second, third and fourth sections are of equal width.
Claim 9
Dependent Claim
31 words
The one-piece blank according to claim 5, wherein the first and second transverse edges at the fifth section are aligned with the first and second transverse edges at said fourth section.
Claim 10
Dependent Claim
23 words
The one-piece blank according to claim 5, wherein said four crease lines extend from said first transverse edge to said second transverse edge.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-04-06 | 1990-10-06 | 1991-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-04-06 | 1994-10-06 | 1995-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-04-06 | 1998-10-06 | 1999-04-07 | $7700.00 | Window Closed / Lapsed |