Carton incorporating easily openable and reclosable pouring aperture
US4122948A · kind A · utility
3Cited by
8References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 20, 1977 |
| Grant date | Oct 31, 1978 |
| Priority date | — |
| Expiry date | Jul 20, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D5/701
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A carton is constituted of end wall and side wall panels, extensions on the panels forming top closure flaps and dust flaps, weakening lines being provided on the top closure flaps to define severable flap sections. One of the dust flaps is shaped in conformance with one of the top closure flap sections and is adhesively-bonded thereto, so that severing of the closure flap sections along the weakening lines will form a pouring aperture. The pouring aperture can be positively reclosed by tucking a free edge of the severable section of the outer top closure flap beneath a portion of the inner top closure flap.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.