Divided paperboard tray
AssigneeChampion International Corporation
InventorEdwin C. McLaren
Life of this patent
Estimating the term…
Abstract
A container for packaging frozen food in which the food can be reheated including a paperboard tray having upstanding side walls and horizontal flanges and an upright central divider wall forming separate food compartments in the tray. Each compartment can be subdivided by pivoting a panel cut from the base of the tray transversely of the compartment to an upright position and locking the panel to the central divider wall. A pre-formed, semi-rigid blister of thermoformable plastic material is combined with the paperboard tray to provide a leak proof container.
Claims3
A compartmentalized container for packaging, storing and heating foods comprising:
- a paperboard tray including
- a horizontal base portion having a central divider wall extending upwardly therefrom substantially perpendicular thereto to form a pair of discrete food compartments on said base portion,
- a plurality of upstanding walls foldably connected to said base portion,
- a corner closure foldably connected to selected ones of said upstanding walls overlapping an adjacent upstanding wall and being connected thereto,
- a horizontally disposed flange foldably connected to the top edge of each of said upstanding walls, each of said flanges abutting each other at their ends to form a peripheral flange,
- a subdivider wall pivotally connected to said horizontal base portion along a fold line to move from a flat to an upright position transversely within each of said discrete food compartments,
- means for interlocking said subdivider walls in an upright position, said interlocking means including a substantially V-shaped notch cut in the top of said central divider wall and an ear extending from one edge of each of said subdivider walls in abutment with each other in said V-shaped notch,
- said plurality of upstanding walls including a first pair of opposed, upstanding walls, and a second pair of opposed, upstanding walls, the base portion of said tray being divided into a first and second portion by said central divider wall, the first of said base portions being foldably connected to one of said first pair of said opposed upstanding walls and both of said second pair of opposed upstanding walls, the second of said base portions being foldably connected to the other of said first pair of said opposed upstanding walls and both of said second pair of opposed upstanding walls, said central divider wall being formed by three parallel fold lines between said first and second portions of said base defining two panels folded about said fold lines into abutting back-to-back relation;
- and
- a leak proof liner for said paperboard tray comprising a preformed, semi-rigid blister of thermoformable material conforming generally to the interior of said paperboard tray, said blister being sealed to said tray at the flanges.
Dependencies are inferred from the claim text.