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US 4,356,952 AGranted
Stackable tray with corner supports
AssigneeChampion International Corporation
InventorVernon C. Rekow
Life of this patent
Estimating the term…
Abstract
A one-piece tray is provided with corner ledges that serve as corner reinforcement bases when the trays are stacked one upon another. The side panels of the tray are provided with retaining lips extending from their top edges. The end panels are provided with tongues extending from the folded top edges thereof. The retaining lips and tongues serve to prevent lateral movement among the trays when stacked.
Claims6
A stackable tray for supporting articles comprising:
- a pair of opposed side walls each including a retaining lip extending from the top edge thereof;
- a pair of opposed end walls connecting said side walls;
- each of said side and end walls being foldably connected to a bottom wall for supporting said articles;
- 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 corner ledge wings equal in height to said side walls foldably connected to opposed edges thereof, said corner ledge wings include a flap member of lesser height having a first crease and a second crease at an acute angle with said first crease, said flap member being folded over along said crease and in back-to-back relation with said corner ledge wing to define a tapered ledge even with said top edge and adjacent to its nearest side wall and with the apex of said tapered ledge remote from its connected end wall, thereby providing support in stacking arrangement.
3 more elements
An integral paperboard blank for forming a stackable 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 substantially triangular flaps foldably connected to the remaining two opposed edges thereof;
- each of said fourth panels having a pair of opposed rectangular flaps foldably connected to the two remaining opposed edges thereof;
- each of said rectangular flap having a tapered shape ledge foldably connected to one edge thereof and a trapezoidal flap foldably connected to the opposite edge of said tapered shape ledge.
3 more elements
Dependencies are inferred from the claim text.