US 4,453,665 AGranted

Container for expandable food pouch

AssigneeChampion International Corporation

InventorsHarry I. Roccaforte, Raymond G. Scott

Life of this patent

Estimating the term…

Loading patent…

Abstract

An expandable food such as popcorn is sealed within a pouch formed of a substantially oxygen-impermeable, flexible, synthetic high polymer film which is dimensioned so as to fit for storage and efficient cooking of the food product in an outer bowl-like protective paperboard container. The outer container and pouch can be heated in a microwave oven and the expandable pouch and food is supported and confined in the bowl of the outer container, from which the food can be consumed. The outer container is formed from a unitary blank which can be partially erected and shipped in a flat, knockdown condition to a food processor for filling with the food pouch. The base of the outer container is provided with self-locking tabs to prevent the bowl-like container from collapsing and returning to its knock-down, shipped condition after fully erected and filled with the food pouch.

Claims23

Dependent claims

A quick-opening, non-metallic outer container for housing an expandable food pouch in a non-expanded and in an expanded condition comprising:

a base portion having
a bottom support panel of regular polygonal shape bisected by a scoreline and adapted to be folded about said scoreline,
said bottom support panel having first opposed pre-selected edges and second opposed pre-selected edges,
said scoreline being located between and parallel to said first opposed pre-selected edges,
upwardly and outwardly extending opposed side wall panels connected to said first opposed pre-selected edges of said polygonally shaped bottom support panel, one of said side wall panels being connected to a plurality of adjacent side wall panels, said side wall panels being adapted to form with said bottom support panel a bowl when said bottom support panel is unfolded about said scoreline, said bowl being adapted to receive an expandable food pouch in a stored condition,
means extending from at least some of said side wall panels to hold the side wall panels together,
a plurality of overlapped, separate top panels, each top panel having an edge resiliently and foldably connected to each of said side panels,
one of said top panels having a top seal tab attached to and overlying at least another of said top panels to hold the container in folded position, and
means connected to said bottom support panel extending between said bottom support panel and said side wall panels for locking said bottom support panel in a substantially horizontal plane relative to said sidewalls, said locking means including
a pair of abutment tabs foldably connected to said second opposed pre-selected edges of said bottom support panel adapted to be placed in contact with the interior of a pair of adjacent sidewall panels, and a U-shaped locking tab cut from each one of said abutment tabs extending partially beneath an adjacent sidewall panel.

7 more elements

A blank for forming a quick-opening, non-metallic outer container for housing an expandable food pouch in a non-expanded and in an expanded condition comprising:

a bottom support panel of regular polygonal shape bisected by a scoreline and adapted to be folded about said scoreline,
said bottom support panel having first opposed pre-selected edges and second opposed pre-selected edges,
said scoreline being located between and parallel to said first opposed pre-selected edges,
upwardly and outwardly extending opposed side wall panels connected to said first opposed pre-selected edges of said polygonally shaped bottom support panel, one of said side wall panels being connected to a plurality of adjacent side wall panels, said side wall panels being adapted to form with said bottom support panel a bowl when said bottom support panel is unfolded about said scoreline,
means extending from at least some of said side wall panels adapted to hold the side wall panels together when the blank is erected,
a plurality of top panels extending from each side wall panel and foldable relative thereto,
one of said top panels having a top seal tab which is adapted to be attached to and overlie at least another of said top panels when the container is in its folded position, and
means connected to said bottom support panel extending between said bottom support panel and said side wall panels for locking said bottom support panel in a substantially horizontal plane relative to said sidewalls, said locking means including
a pair of abutment tabs foldably connected to said second opposed pre-selected edges of said bottom support panel adapted to be placed in contact with the interior of a pair of adjacent sidewall panels, and a U-shaped locking tab cut from each one of said abutment tabs extending partially beneath an adjacent sidewall panel.

6 more elements

Dependencies are inferred from the claim text.