US4417686A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Octagon tray with reinforced handhole
Assignee: International Paper Co
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Filing: 1983-02-28
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Granted: 1983-11-29
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Expires: 2003-02-28
Abstract
Abstract A tray and one-piece blank for forming it. The tray is formed of corrugated paperboard and includes bottom, side and end wall panels. The side wall panels carrying extensions at their upper end portions, these extensions are wrapped around the end panels for reinforcement. The end panels carry extensions which are bent and positioned interiorly along the side walls, one of the extensions serving as a corner reinforcement against buckling under vertical loads.
Inventors
- 👤 Roger M. Wozniacki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:55
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/001; B65D5/0015; B65D5/002; B65D5/20; B65D5/28; B65D5/42; B65D5/44; B65D5/46; B65D5/46072; B65D5/4608
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
271 words
A one-piece blank of stiff, resilient and foldable material such as corrugated paperboard, the blank being adapted to be folded into a tray, the blank being of generally rectangular form, the blank having a plurality of score lines and cut lines, the blank having a central bottom forming panel (14) defined by and bound on its upper and lower edges by score lines (22) and on its left and right edges by both cut and score lines (24, 50), the upper and lower edges (22) of said central panel (14) each carrying a generally T-shaped panel (16, 20, 20') whose base (22) is positioned at a respective edge of the central panel and whose bare ends extend toward the right and the left edges (12', 12) of the one piece blank, each T-shaped panel being defined by cuts (24, 26, 28, 30, 32) extending along the sides of the base (16) of each T-shaped panel and running laterally away from it, the top (11) of each T-shaped panel extending along and being coincident with a respective end forming panel (44), the latter defined by said cuts (24, 26, 28, 30, 32), each end forming panel joined to a respective right or left edge of said central panel at the said central panel score lines, one edge of each of said end forming panels being coincident with a respective right or left edge portion (12', 12) of the one piece blank, the sides (24) of the base of each T-shaped panel (16) being non-colinear with the score lines (50) at the left and right edges of the central, bottom forming panel (14).
Claim 2
Dependent Claim
271 words
A one-piece blank of stiff, resilient and foldable material such as corrugated paperboard, the blank being adapted to be folded into a tray, the blank being of generally rectangular form, the blank having a plurality of score lines and cut lines, the blank having a central bottom forming panel (14) defined by and bound on its upper and lower edges by score lines (22) and on its left and right edges by both cut and score lines (24, 50), the upper and lower edges (22) of said central panel (14) each carrying a generally T-shaped panel (16, 20, 20') whose base (22) is positioned at a respective edge of the central panel and whose bare ends extend toward the right and the left edges (12', 12) of the one piece blank, each T-shaped panel being defined by cuts (24, 26, 28, 30, 32) extending along the sides of the base (16) of each T-shaped panel and running laterally away from it, the top (11) of each T-shaped panel extending along and being coincident with a respective end forming panel (44), the latter defined by said cuts (24, 26, 28, 30, 32), each end forming panel joined to a respective right or left edge of said central panel at the said central panel score lines, one edge of each of said end forming panels being coincident with a respective right or left edge portion (12', 12) of the one piece blank, the sides (24) of the base of each T-shaped panel (16) being non-colinear with the score lines (50) at the left and right edges of the central, bottom forming panel (14).
Claim 3
Dependent Claim
50 words
The one-piece blank of claim 1 wherein the end forming panels (44) are provided with score lines (52) running from a respective right or left edge (12) of the one-piece blank to the respective ends of the score lines (52) at the left and right edges of said central panel.
Claim 4
Dependent Claim
54 words
The one-piece blank of claim 2 wherein score lines (36) extend from respective upper and lower edges of the one-piece blank to the upper ends of those score lines (24) which define the sides of the base of each T-shaped panel to thereby define the two laterally extending bars (20) of each T-shaped panel.
Claim 5
Dependent Claim
26 words
The one-piece blank of claim 3 wherein the bar ends of the T-shaped panels extend to, respectively, the right and left edges of the one-piece blank.
Claim 6
Dependent Claim
54 words
The one-piece blank of claim 3 wherein the end forming panels (44) are each provided with means defining a hand hole, and wherein the bar ends of the T-shaped panel are provided with means to interlock said ends with and into the said hand holes when the blank is erected to form a tray.
Claim 7
Dependent Claim
110 words
A tray including bottom, side and end walls, the tray being fashioned from a one-piece blank of stiff, resilient and foldable sheet material such as paperboard, the side walls each carrying bar extensions which wrap around and overlie the end walls and which overlie each other, the end walls carrying panels which extend at an angle to the planes of the end and side walls and which also extend parallel to and in surface contact with the side walls, a hand hole in each of the end walls, the overlapping bar extensions of the side walls having lower edges which are coincident with the upper edges of the hand holes.
Claim 8
Dependent Claim
110 words
A tray including bottom, side and end walls, the tray being fashioned from a one-piece blank of stiff, resilient and foldable sheet material such as paperboard, the side walls each carrying bar extensions which wrap around and overlie the end walls and which overlie each other, the end walls carrying panels which extend at an angle to the planes of the end and side walls and which also extend parallel to and in surface contact with the side walls, a hand hole in each of the end walls, the overlapping bar extensions of the side walls having lower edges which are coincident with the upper edges of the hand holes.
Claim 9
Dependent Claim
45 words
The tray of claim 6 wherein the overlapped bar extensions of the side walls each carry locking tabs, the locking tabs overlying each other and extending through said hand holes and being locked therein to thereby assist in maintaining the tray in an erected configuration.
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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) | 1986-11-28 | 1987-05-30 | 1987-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-11-28 | 1991-05-30 | 1991-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-11-28 | 1995-05-30 | 1995-11-29 | $7700.00 | Window Closed / Lapsed |