US4356953A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tray cover with support ledges
Assignee: Stone Container Corp
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Filing: 1981-06-29
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Granted: 1982-11-02
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Expires: 2001-06-29
Abstract
Abstract A one-piece tray cover is provided with corner ledges that maintain the cover in an elevated position with respect to the top edges of a bottom tray on which the cover is positioned. The tray cover can also function as a supporting base for the tray bottom. When so used, the cover is inverted with its opening facing upward. The bottom tray is then placed inside the upward facing opening of the inverted tray cover. When used as a support base, the corner ledges serve to support the tray bottom in an elevated manner. The height of the corner ledges is less than the overall height of the tray cover. The corner ledges may be provided with a tapered edge resulting from a back-to-back fold along two non-parallel crease lines.
Inventors
- 👤 Vernon C. Rekow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:43
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/42; B65D5/64; B65D5/68
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
205 words
A tray cover for a container or tray comprising: a pair of opposed side walls; a pair of opposed end walls connecting said side walls, said end walls being of substantially the same height as said side walls; each of said side and end walls being foldably connected to a top panel for covering said container or tray; each of said end walls including a pair of panels foldably connected to each other in back-to-back relation; and each of the innermost of said end wall panels having a pair of tapered support leg wings foldably connected to opposed edges thereof, each of said support ledge wings having an edge contacting said top panel and having a height of much smaller dimension then that of said side and end walls, each of said support ledge wings includes a flap member with the height as said ledge wing and having a first crease and a second crease forming an acute angle with said first crease, said flap member being folded along said creases and in back-to-back relation with said support ledge wing to define a tapered ledge adjacent to its nearest side wall and with the apex of said tapered ledge remote from its connected end wall.
Claim 2
Dependent Claim
205 words
A tray cover for a container or tray comprising: a pair of opposed side walls; a pair of opposed end walls connecting said side walls, said end walls being of substantially the same height as said side walls; each of said side and end walls being foldably connected to a top panel for covering said container or tray; each of said end walls including a pair of panels foldably connected to each other in back-to-back relation; and each of the innermost of said end wall panels having a pair of tapered support leg wings foldably connected to opposed edges thereof, each of said support ledge wings having an edge contacting said top panel and having a height of much smaller dimension then that of said side and end walls, each of said support ledge wings includes a flap member with the height as said ledge wing and having a first crease and a second crease forming an acute angle with said first crease, said flap member being folded along said creases and in back-to-back relation with said support ledge wing to define a tapered ledge adjacent to its nearest side wall and with the apex of said tapered ledge remote from its connected end wall.
Claim 3
Dependent Claim
51 words
The cover of claim 1 wherein each of the innermost of said end wall panels includes at least one upwardly facing tab along its top edge received within a notch or indentation formed in said top panel to lock said side and end walls into fixed relation with said top panel.
Claim 4
Dependent Claim
193 words
An integral paperboard blank for forming a cover for a container or tray comprising: a first rectangular panel; a pair of second rectangular panels foldably connected along opposed edges of said first rectangular panel; a pair of third rectangular panels foldably connected along the remaining opposed edges of said first rectangular panel, said third rectangular panels having fourth rectangular panels foldably connected along the length thereof; each of said second panels having a pair of opposed panel extension flaps foldably connected thereto; and each of said fourth panels having a pair of edge flaps partially connected along a first crease line perpendicular to the edge thereof opposite said third panel and terminating less than half the width of said fourth panel; said edge flaps including free portions extending from the innermost end of said first crease line and circumscribing the remainder of said side edge flap; said free portions substantially bisected by divergent second and third crease lines, said second crease line extending from the termination of said first line and parallel to said edge of said fourth panel opposite said third panel, the width of said free portions being of equal dimension.
Claim 5
Dependent Claim
193 words
An integral paperboard blank for forming a cover for a container or tray comprising: a first rectangular panel; a pair of second rectangular panels foldably connected along opposed edges of said first rectangular panel; a pair of third rectangular panels foldably connected along the remaining opposed edges of said first rectangular panel, said third rectangular panels having fourth rectangular panels foldably connected along the length thereof; each of said second panels having a pair of opposed panel extension flaps foldably connected thereto; and each of said fourth panels having a pair of edge flaps partially connected along a first crease line perpendicular to the edge thereof opposite said third panel and terminating less than half the width of said fourth panel; said edge flaps including free portions extending from the innermost end of said first crease line and circumscribing the remainder of said side edge flap; said free portions substantially bisected by divergent second and third crease lines, said second crease line extending from the termination of said first line and parallel to said edge of said fourth panel opposite said third panel, the width of said free portions being of equal dimension.
Claim 6
Dependent Claim
30 words
The paperboard blank of claim 3 wherein the free portions of said edge flaps containing said third crease lines formed an acute angle with respect to said second crease lines.
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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) | 1985-11-01 | 1986-05-03 | 1986-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-11-01 | 1990-05-03 | 1990-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-11-01 | 1994-05-03 | 1994-11-02 | $7700.00 | Window Closed / Lapsed |