Cup with thermally insulated side wall
US5628453A · kind A · utility
112Cited by
31References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 16, 1996 |
| Grant date | May 13, 1997 |
| Priority date | — |
| Expiry date | Jan 16, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D81/3869
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An insulated cup includes a tapered side wall that defines an array of spaced, parallel ridges separated by grooves. A label is supported by the ridges around the exterior of the cup to define an array of air gaps in the grooves between the ridges. These air gaps provide thermal insulation tending to reduce heat flow through the label into or out of the cup, and the side wall includes solid resin outer layers and a foamed resin central layer to improve thermal insulation further.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.