Container with integral reinforcing flange
US6227442A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 6, 2000 |
| Grant date | May 8, 2001 |
| Priority date | — |
| Expiry date | Mar 6, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D5/443
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A container for bulk materials, especially fluid materials, has integral reinforcing flanges on at least one of its top and bottom ends to resist bulging of the container side walls due to the pressure of the container contents. The flanges are tubular in transverse cross-section and are formed of a plurality of panels, with at least some of the panels having interfitting projections and recesses on adjacent ends thereof to interlock with one another and hold the flanges in erected condition. Corner posts may be inserted into the corners of the container, extending from the top to the bottom thereof, to reinforce the container for stacking of multiple containers on top of one another. The reinforcing flanges at the bottom end of the container have an upwardly and outwardly sloping support surface, and a tray insert having a marginal edge surface complementary to the support surface is supported on the support surface to form a bottom wall in the container.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.