Thermal insulating sleeve for drink cups
US5667135A · kind A · utility
67Cited by
16References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 17, 1996 |
| Grant date | Sep 16, 1997 |
| Priority date | — |
| Expiry date | Apr 17, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D81/3865
- WIPO fieldHandling
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.