End closure for lined cartons
US4197963A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 2, 1979 |
| Grant date | Apr 15, 1980 |
| Priority date | — |
| Expiry date | Jan 2, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D5/603
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An improved end closure for a prelined carton formed from a knocked-down tubular carton structure, the end closure comprising an opposing pair of innermost closure flaps and an opposing pair of outermost closure flaps, the innermost flaps each being diagonally scored to define a triangular tab portion at one end thereof, the triangular tab portions being adhesively secured to the mouth of the liner mouth as an incident of erecting the carton, the tabs being folded inwardly by the liner mouth as it is expanded and flattened for sealing, the infolded tabs assisting in positioning the liner mouth for sealing and also serving to facilitate the infolding of the ends of the sealed liner mouth as an incident of infolding the innermost closure flaps to overlie the end of the carton body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.