Envelopes – wrappers – and paperboard boxes – Paper or paperboard cup – Insulated
Patent
1997-07-14
1999-09-14
Elkins, Gary E.
Envelopes, wrappers, and paperboard boxes
Paper or paperboard cup
Insulated
220903, 229 45, 229 55, B65D 300
Patent
active
059509171
ABSTRACT:
A dual wall container formed of a laminated blank wrapped about the longitudinal axis of the container to define a inner sidewall and an outer sidewall. The laminated blank comprises an inner sheet affixed to an outer sheet, wherein expansion joints may be provided on the outer sheet to enable the same to increase in circumference as the container is formed. Preferably, scores are provided within the inner sheet so as to form annular air pockets extending circumferentially around the container between the inner and outer sidewalls for uniform insulation.
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Elkins Gary E.
Mai Tri M.
Sealright Co. Inc.
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