Egg carton
US6012583A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 15, 1998 |
| Grant date | Jan 11, 2000 |
| Priority date | — |
| Expiry date | Sep 15, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D85/324
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An egg carton is provided having various nesting/denesting features, a ventilation system, reinforced portions, and capability of accommodating and protecting various sized eggs. The nesting/denesting features include thickened corners on the lid, an indented post and a stacking ledge on the tray, each feature reducing the amount of surface contact between nesting components and facilitating denesting. The ventilation system includes channels formed in the cells of the tray and a vent which enables effective natural and artificial cooling of packaged eggs. The reinforced portions include embossments being formed on the bases of each of the cells, along with compacted raised portions. Finally, the cells are provided with high flexible walls for protecting the eggs and deflectable cushions shaped and located to securely hold eggs which are smaller than the natural size of the cells.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.