US4432489A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pie carton
Assignee: WestRock Minnesota Corp
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Filing: 1982-06-14
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Granted: 1984-02-21
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Expires: 2002-06-14
Abstract
Abstract Disclosed is a carton especially adapted to package single servings of pie. The carton has a triangular shape due to a triangular top closure and a bottom support panel. A trapezoidal end wall connects the top and bottom panels at the bases of the respective triangles and slants outwardly from bottom to top. The bottom panel has inner side wall panels attached to it. The inner side wall panels are secured in a vertical upright position by means of corner flaps which are preferably secured to the outer surfaces of the inner side wall panels. The top closure panel has downwardly extending outer side walls which telescope over the inner side wall panels. The fragile pie crust is protected by the slanted end wall, overlapping corner flaps, and arcuate or rounded surfaces as required, at the juncture of the end wall and/or outer side wall panels with the top closure panel.
Inventors
- 👤 Raymond A. Cote
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:55
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/42; B65D5/54; B65D5/545; B65D5/546; B65D5/20; B65D5/2014; B65D5/2028; B65D2585/00; B65D2585/30; B65D2585/36; B65D2585/363; B65D2585/366; Y; Y10; Y10S; Y10S229/00; Y10S229/902; Y10S229/903
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
401 words
A one-piece foldable blank for forming a wedge-shaped carton having a slanted end wall, said carton comprising: a triangular bottom panel having a base edge and two side edges; a trapezoidal end wall having top, bottom and side edges, with said bottom edge of said end wall and said base edge of said bottom panel being hingedly connected and of equal length, and with corner flaps being respectively connected to the side edges of said trapezoidal end wall; a triangular top panel having a base edge and two side edges with the length of the base edge of said top panel being greater than the length of the base edge of said bottom panel, and with the length of said top panel measured along an imaginary line extending perpendicularly from the associated base edge to the opposed apex thereof being greater than the length of said bottom panel measured along an imaginary line extending perpendicularly from the associated base edge to the opposed apex thereof, said base edge of said top panel being hingedly connected and of equal length to the top edge of said trapezoidal end wall; a pair of side wall panels extending from and hingedly connected to the associated side edges of said triangular top and bottom panels, with each side panel of one pair of said side wall panels including a pair of spaced, intermittent cut lines extending along the length thereof and defining a tear strip to permit easy opening of the erected carton which is of wedge-shaped configuration having a slanted trapezoidal end wall and which is useful for containing a wedge-shaped piece of pie having a slanted crust portion, with the carton conforming to the shape of said pie piece and with said sloping trapezoidal end wall functioning to provide increased protection and support to the slanted crust portion thereof, said base edge of said top panel being defined by at least a pair of spaced scorelines converging towards each other at their ends to enhance the protection of a pie piece within said carton by precluding contact of the pie piece with an adjacent straight edge, a fold around flap is hingedly connected to the edge of one side wall panel extending from said bottom panel, said fold around flap being disposed adjacent the apex of said triangular bottom panel, said converging scorelines defining said edge including a convex and facing concave scoreline.
Claim 2
Dependent Claim
401 words
A one-piece foldable blank for forming a wedge-shaped carton having a slanted end wall, said carton comprising: a triangular bottom panel having a base edge and two side edges; a trapezoidal end wall having top, bottom and side edges, with said bottom edge of said end wall and said base edge of said bottom panel being hingedly connected and of equal length, and with corner flaps being respectively connected to the side edges of said trapezoidal end wall; a triangular top panel having a base edge and two side edges with the length of the base edge of said top panel being greater than the length of the base edge of said bottom panel, and with the length of said top panel measured along an imaginary line extending perpendicularly from the associated base edge to the opposed apex thereof being greater than the length of said bottom panel measured along an imaginary line extending perpendicularly from the associated base edge to the opposed apex thereof, said base edge of said top panel being hingedly connected and of equal length to the top edge of said trapezoidal end wall; a pair of side wall panels extending from and hingedly connected to the associated side edges of said triangular top and bottom panels, with each side panel of one pair of said side wall panels including a pair of spaced, intermittent cut lines extending along the length thereof and defining a tear strip to permit easy opening of the erected carton which is of wedge-shaped configuration having a slanted trapezoidal end wall and which is useful for containing a wedge-shaped piece of pie having a slanted crust portion, with the carton conforming to the shape of said pie piece and with said sloping trapezoidal end wall functioning to provide increased protection and support to the slanted crust portion thereof, said base edge of said top panel being defined by at least a pair of spaced scorelines converging towards each other at their ends to enhance the protection of a pie piece within said carton by precluding contact of the pie piece with an adjacent straight edge, a fold around flap is hingedly connected to the edge of one side wall panel extending from said bottom panel, said fold around flap being disposed adjacent the apex of said triangular bottom panel, said converging scorelines defining said edge including a convex and facing concave scoreline.
Claim 3
Dependent Claim
411 words
A one-piece foldable blank for forming a wedge-shaped carton having a slanted end wall, said carton comprising: a triangular bottom panel having a base edge and two side edges; a trapezoidal end wall having top, bottom and side edges, with said bottom edge of said end wall and said base edge of said bottom panel being hingedly connected and of equal length, and with corner flaps being respectively hingedly connected to the side edges of said trapezoidal end wall; a triangular top panel having a base edge and two side edges with the length of the base edge of said top panel being greater than the length of the base edge of said bottom panel, and with the length of said top panel measured along an imaginary line extending perpendicularly from the associated base edge to the opposed apex thereof being greater than the length of said bottom panel measured along an imaginary line extending perpendicularly from the associated base edge to the opposed apex thereof, said base edge of said top panel being hingedly connected and of equal length to the top edge of said trapezoidal end wall; a pair of side wall panels extending from and hingedly connected to the associated side edges of said triangular top and bottom panels, with each side wall panel of one pair of said side wall panels including a pair of spaced, intermittent cut lines extending along the length thereof and defining a tear strip to permit easy opening of the erected carton which is of wedge-shaped configuration having a slanted trapezoidal end wall and which is useful for containing a wedge-shaped piece of pie having a slanted crusted portion, with the carton conforming to the shape of said pie piece and with said sloping trapezoidal end wall functioning to provide increased protection and support to the slanted crust portion thereof, said side edges of said top panel being defined by at least a pair of spaced scorelines converging towards each other at their ends to enhance the protection of a pie piece within said carton by precluding contact of the pie piece with an adjacent straight edge, a fold around flap is hingedly connected to the edge of one side wall panel extending from said bottom panel, said fold around flap being disposed adjacent the apex of said triangular bottom panel, the upper edges of said other pair of side wall panels being contoured to match the contours of said convering scorelines.
Claim 4
Dependent Claim
411 words
A one-piece foldable blank for forming a wedge-shaped carton having a slanted end wall, said carton comprising: a triangular bottom panel having a base edge and two side edges; a trapezoidal end wall having top, bottom and side edges, with said bottom edge of said end wall and said base edge of said bottom panel being hingedly connected and of equal length, and with corner flaps being respectively hingedly connected to the side edges of said trapezoidal end wall; a triangular top panel having a base edge and two side edges with the length of the base edge of said top panel being greater than the length of the base edge of said bottom panel, and with the length of said top panel measured along an imaginary line extending perpendicularly from the associated base edge to the opposed apex thereof being greater than the length of said bottom panel measured along an imaginary line extending perpendicularly from the associated base edge to the opposed apex thereof, said base edge of said top panel being hingedly connected and of equal length to the top edge of said trapezoidal end wall; a pair of side wall panels extending from and hingedly connected to the associated side edges of said triangular top and bottom panels, with each side wall panel of one pair of said side wall panels including a pair of spaced, intermittent cut lines extending along the length thereof and defining a tear strip to permit easy opening of the erected carton which is of wedge-shaped configuration having a slanted trapezoidal end wall and which is useful for containing a wedge-shaped piece of pie having a slanted crusted portion, with the carton conforming to the shape of said pie piece and with said sloping trapezoidal end wall functioning to provide increased protection and support to the slanted crust portion thereof, said side edges of said top panel being defined by at least a pair of spaced scorelines converging towards each other at their ends to enhance the protection of a pie piece within said carton by precluding contact of the pie piece with an adjacent straight edge, a fold around flap is hingedly connected to the edge of one side wall panel extending from said bottom panel, said fold around flap being disposed adjacent the apex of said triangular bottom panel, the upper edges of said other pair of side wall panels being contoured to match the contours of said convering scorelines.
Claim 5
Dependent Claim
20 words
A blank according to claim 2 wherein said converging scorelines defining said edge include a convex and facing concave scoreline.
Claim 6
Dependent Claim
16 words
A blank according to claim 2 wherein said converging scorelines defining said edge form a quadrilateral.
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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) | 1987-02-20 | 1987-08-22 | 1988-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-02-20 | 1991-08-22 | 1992-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-02-20 | 1995-08-22 | 1996-02-21 | $7700.00 | Window Closed / Lapsed |