Corrugated container
US4347934A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 15, 1980 |
| Grant date | Sep 7, 1982 |
| Priority date | — |
| Expiry date | Oct 15, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S229/939
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A lightweight container having a readily removable corrugated sidewall. The inner ply of the sidewall is a corrugated sheet having a selected length and width. A bottom wall member is positioned adjacent the lower axial edge of the inner sheet. A flat outer sheet, of selected length and a width greater than the width of the corrugated inner sheet, is joined to the inner sheet to define the outer ply of the sidewall. The outer sheet projects beyond the lower edge of the inner sheet and is folded against and secured to the bottom wall member, to thereby restrain movement of the bottom wall member. A frangible joint is defined along which the sidewall can be severed from the bottom wall without severing the corrugated inner wall, so that the inner wall adds rigidity without interfering with the ready removal of the sidewall. In the preferred arrangement, the adjacent ends of the inner sheet are in a substantially abutting and unsealed relationship to assist in the opening of the container. A portion of the outer sheet also forms pull-tab means which facilitates the removal of the sidewall from the bottom wall. Further, in the preferred embodiment, the engaged portions of the sheets an…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.