Flip-top carton with integral partial collar
US5911359A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 1997 |
| Grant date | Jun 15, 1999 |
| Priority date | — |
| Expiry date | Dec 17, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D5/543
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A one-piece, flip-top reclosable container embodying the present invention includes an outer carton having opposing top and bottom walls, front and back walls, and first and second side walls. The first and second side walls and the front wall include a preferential area of weakness for opening the carton from a sealed form to an unsealed form. The preferential area of weakness forms a lid hingedly connected to the top wall. The top wall includes a front top minor flap hingedly connected to an upper end of the front wall. An internal collar is integrally formed with the front top minor flap. The internal collar is disposed within the carton when the carton is in the sealed form. The internal collar includes a front panel and opposing first and second side panels adjacent to the respective front wall and the opposing first and second side walls of the carton. The front panel of the internal collar is detachably connected to the front top minor flap along at least one horizontal fold line. The internal collar optionally includes an extension flap comprised of at least one hinged portion and at least one island portion disposed in forcibly displaceable mutual engagement such that open…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.