Liquid container with straw opening means
US4446971A · kind A · utility
4Cited by
8References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 10, 1982 |
| Grant date | May 8, 1984 |
| Priority date | — |
| Expiry date | Nov 10, 2002 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D5/705
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A heat sealable, liquid carrying paperboard carton is disclosed having straw opening means formed in a wall panel thereof. The straw opening means includes a tear strip formed by cuts through the carton wall beginning at the edge of the side panel adjacent the usual underlying fifth panel. A tab is formed to serve as an extension of the tear strip. A block score depression is formed in the wall panel adjoining the tear strip such that the tab is folded onto the depression and sealed thereto, but only minimally due to the depth of the depression, so as to be readily lifted therefrom to initiate the straw hole opening process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.