B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
B65D 81/34 (2006.01)
Patent
CA 2161616
Disclosed herein is a self-supporting bag for microwave cooking which can be easily sealed simply by folding back its upper part, so that it keeps an internal pressure and temperature that permit uniform heating and good cooking. The bag is made mainly of heat-resistant plastic film (F), with the opposing front and back walls (1a, 1b) joined at the side edges (3), and has a bottom (29) which is connected to the lower edges of the front and back walls (1a, 1b) and is folded between them into an inverted V shape, said bottom having the side edges of its folded parts (2a, 2b) joined at 4a, 4b to the front and back walls (1a, 1b), the upper part of at least either of the front and back walls being formed from paper (P). The bottom (2) has the side edges (2a, 2b) of its folded parts integrally bonded to the front and back walls (1a, 1b) at the part at least above the range in which the bottom is folded, and the bottom is formed in a shape like a ship's bottom.
Nishioka Kyoji
Yasuhara Akiyo
Fetherstonhaugh & Co.
Shimaya Co. Ltd.
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