Flip-top reclosable container with integrally formed collar
US5875963A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 29, 1997 |
| Grant date | Mar 2, 1999 |
| Priority date | — |
| Expiry date | Apr 29, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D5/6608
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A flip-top reclosable carton is comprised of an outer carton and an internal collar. The outer carton includes opposing top and bottom walls, opposing front and back walls, and opposing first and second side walls. The first and second side walls and the front wall include a continuous horizontal tear means for opening up the carton from a sealed form to form a lid hingedly connected to a base. The top wall includes first and second top minor flaps hingedly connected to upper ends of the respective first and second side walls. The internal collar is integrally formed with the first and second top minor flaps. The collar is disposed within the carton and 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 collar includes at least one hinged portion and at least one island portion disposed in forcibly displaceable mutual engagement such that opening the lid exerts a force which disengages the mutual engagement and closing the lid leads to snap re-engagement of the hinged portion and the island portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.