Envelopes – wrappers – and paperboard boxes – Paper or paperboard cup – Insulated
Patent
1996-04-17
1997-09-16
Elkins, Gary E.
Envelopes, wrappers, and paperboard boxes
Paper or paperboard cup
Insulated
220738, 229400, B65D 322, B65D 562
Patent
active
056671350
ABSTRACT:
A "honeycombed" insulative sleeve is positionable around a portion of a beverage cup side wall. The sleeve is made from a preform which includes a plurality of circumferentially spaced-apart rows of generally longitudinally oriented and off-set slits. The slits thereby allow the sleeve to expand circumferentially when portioned on a portion of the beverage cup side wall and, by virtue of such circumferential expansion, thereby form the insulative honeycomb structure therearound.
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The Wiley Encyclopedia of Packaging Technology, John Wiley & Sons, (1986) pp. 14-16, 497-499.
Elkins Gary E.
Sweetheart Cup Company Inc.
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