Paperboard carton with gusset lock
US4951865A · kind A · utility
19Cited by
17References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 7, 1989 |
| Grant date | Aug 28, 1990 |
| Priority date | — |
| Expiry date | Dec 7, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D5/667
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A carton with an integrally hinged tray and cover assembled as a preform and including a lock flange on the front wall of the cover with projecting lock tabs engageable through corresponding slots in the front wall of the tray. The lock flange is gusset-engaged at the opposed ends thereof to the side walls of the cover, and seats on support shoulders on the opposed side walls of the tray to stabilize the flange, and hence the lock tabs thereon, in an extended position for engagement of the tabs within the corresponding slots when the cover is closed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.