Produce container and method for making the same
US6481619B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 20, 2000 |
| Grant date | Nov 19, 2002 |
| Priority date | — |
| Expiry date | Oct 20, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S229/919
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A produce container comprises a bottom wall, a pair of opposing side walls, a front wall, and a back wall. The front and back walls are reinforced along their tops by partial rollovers, each of which comprises two flanges—a center flange and a major flange—hingedly attached to the wall being reinforced. Each rollover is formed by first folding the center flange slightly away from the major flange and then folding the major flange downward toward the corresponding wall. Folding the major flange captures the center flange and at the same time forms doubled, indexed stacking tabs whose tops are formed along the axis about which the major flap is folded. The corners where the side walls and front and back walls join are reinforced by corner structures, with the corner structures extending along a portion of each of the joining walls so that the corners are reinforced along each wall with at least two layers of vertically-corrugated paperboard. The corners are further reinforced by shoulders extending across the top of the container at the corners and affixed to the side walls and the front and back walls where they join. The shoulders extend a short distance inward toward t…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.