Box construction having spring engagement
US5522504A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 1, 1995 |
| Grant date | Jun 4, 1996 |
| Priority date | — |
| Expiry date | Mar 1, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D75/14
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Corrugated box constructions suitable for packaging, storing and transporting flat rectangular objects such as books and the like. The box has a generally rectangular central panel, a pair of side panels hingedly joined to one of the opposite ends of the central panel. The side panels fold first perpendicularly and then parallel to the central panel and have a leaf-spring terminus. A top panel is hingedly joined to one of the transverse sides of the central panel. The top panel folds first perpendicularly upward, then parallel, then perpendicularly downward and under the central panel. The construction allows for packaging products of various sizes and yet provides a cushioned retention of the product without changing the carton size.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.