Container with protective seal and tear strip
US4789066A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 25, 1983 |
| Grant date | Dec 6, 1988 |
| Priority date | — |
| Expiry date | Nov 25, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D5/065
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A flat top container and the blank for constructing same, including a fin seal which is folded flat, and wherein spaced lines of perforations adapted to provide a tear strip are formed in one outer end closure panel, overlying a separate protective seal strip, formed of aluminum foil or other suitable material, sealed to the inside surface of the panel. The side seam flap which interconnects adjacent side panels has a tab extending from the free edge thereof, and is folded in half to eliminate raw edges inside and to cause the tab to extend beyond the edge of the top closure, to serve as a pouring lip once the tear strip is lifted and the protective seal strip is broken.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.