초록 ▼

Disclosed is a container for packaging foods and particular frozen foods. The container includes a bottom tray and a like tray which has been inverted and turned 90 degrees to form a lid or cover for the bottom tray. The tray is formed from a thermoplastic coated paperboard blank having a base porti

Disclosed is a container for packaging foods and particular frozen foods. The container includes a bottom tray and a like tray which has been inverted and turned 90 degrees to form a lid or cover for the bottom tray. The tray is formed from a thermoplastic coated paperboard blank having a base portion, a plurality of cut and scored lines forming opposing upstanding walls when folded, and bonding panels extending from upper or lower edges of one pair of opposing upstanding walls. A cohesive emulsion is used on the bonding panels to secure the bottom tray to the lid. The substantially identical cover and bottom tray can be made utilizing convential machinery and from various substrates including plastics. Other features of the container include vents for allowing release of pressure during heating and upwardly diverging walls allowing nesting. Another embodiment includes a compartmented container having multiple bottom trays and a single continuous cover unit.

대표청구항 ▼

A container for packaging and heating food comprising: a. a bottom tray and a separately formed cover, each of said bottom tray and cover including: 1. a base portion, 2. walls attached to said base portion and forming a containment area therebetween, means attaching said walls to each other, 3. a b

A container for packaging and heating food comprising: a. a bottom tray and a separately formed cover, each of said bottom tray and cover including: 1. a base portion, 2. walls attached to said base portion and forming a containment area therebetween, means attaching said walls to each other, 3. a bonding panel secured by a foldline to an edge of each of one pair of said walls and having a releasable adhesive thereon for securing the bottom tray and cover together and for repeated opening and closing of said container. b. at least one of said bonding panels having an unbonded area forming a vent to release pressure from the interior to the exterior of said container, said at least one bonding panel further including cuts forming a bending area adjacent said foldline in said at least one bonding panel and in line with said unbonded area, said bending area allowing release of excessive pressure in said container.