发明名称 End fill microwavable and/or ovenable container
摘要 A container that is filled with a product through an open end and which is suitable for use in a microwave or conventional oven to hold the product while it is heated. The container is formed of a paperboard blank coated with polyethylene (microwavable) or polyester (microwavable and ovenable), and is folded, filled and thermally sealed on a slightly modified, but generally conventional machine that is otherwise used to assemble and fill prior art end filled containers. The blank includes a first panel having two end walls, front and rear sidewalls, and four gusset corners, and a second panel connected to the rear sidewall along a fold line having two end flaps, and a front flap. A tear-open access flap is defined on the second panel by partially die cut lines. In a first embodiment, the first panel is imprinted with graphics and the second panel with cooking instructions. As displayed for sale, the graphics on the top of the container are visible, while during the heating process, the container is inverted, making the instructions readily visible. A novel design enables tight reclosure of the access flap by insertion of a reclosure tab into a slotted receiver; an interference fit between the access flap and front fold line "shoulders", and between the tap and the slot holds the access flap tightly closed. In a second embodiment, the graphics are on the top of the container as it is oriented for both sale and for heating the products. In addition, the access flap cannot be tightly reclosed. However, both embodiments permit direct heating in an oven, a benefit only previously available in top filled containers.
申请公布号 US4746019(A) 申请公布日期 1988.05.24
申请号 US19870040255 申请日期 1987.04.20
申请人 RIDGEWAY PACKAGING CORP. 发明人 PRATER, DONALD R.
分类号 B65D5/54;B65D81/34;(IPC1-7):B65D5/54 主分类号 B65D5/54
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