Tear away top structure for a rectangular paperboard container
US4911305A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 3, 1988 |
| Grant date | Mar 27, 1990 |
| Priority date | — |
| Expiry date | May 3, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D5/548
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A rectangular paperboard container includes an improved opening top structure which, when opened, provides a completely open top container. The container includes a tear line which extends substantially along the front and two side upper edges of the container. The tear line defines an openable top portion of the container which, when opened, is hingedly attached along the rear upper edge of the container. Preferably, the front tear line is located in a front panel of the container, and is spaced slightly downwardly from the front upper edge. The side tear lines can be located in either the respective side panels or in a top cover, and are also spaced from the respective upper side edges. In accordance with the present invention, an opening tab is operatively connected to the container along the upper front edge thereof. The opening tab is adapted to be folded against the front panel and substantially covers and protects the front tear line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.