Envelopes – wrappers – and paperboard boxes – Paperboard box – Elevated bottom wall included in a one-piece box construction
Patent
1987-06-03
1988-01-05
Little, Willis
Envelopes, wrappers, and paperboard boxes
Paperboard box
Elevated bottom wall included in a one-piece box construction
229902, 206545, 220 31, B65D 570, A45C 1120
Patent
active
047170697
ABSTRACT:
A carton for hot foods in which the bottom wall of the carton comprises a plurality of layers which enclose therebetween a plurality of void spaces that serve to limit the conduction of heat from hot foods positioned on the upper surface of the bottom wall of the carton to a cold surface on which the bottom surface of the bottom wall rests. The void spaces may take the form of a plurality of generally conical dimples depressed into the lower layer of the bottom wall, or may take the form of elongated V-shaped grooves or furrows depressed into the lower layer of the bottom wall.
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patent: 3861576 (1975-01-01), Tolaas et al.
patent: 4096948 (1978-06-01), Kuchenbecker
patent: 4260060 (1981-04-01), Faller
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patent: 4373636 (1981-02-01), Hoffman
patent: 4441626 (1984-04-01), Hall
patent: 4476989 (1984-10-01), Larsen
patent: 4505391 (1985-03-01), Kuchenbecker
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