Package opening
US5782404A · kind A · utility
10Cited by
15References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 31, 1996 |
| Grant date | Jul 21, 1998 |
| Priority date | — |
| Expiry date | Dec 31, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D2231/022
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An improved straw hole design for a drink package which allows venting to occur in air gaps around the straw while the straw is inserted in the straw hole. This invention prevents the common problem of squirting or spill-over out of the top of the straw when a drink box is squeezed or otherwise compressed. Several embodiments are disclosed in which a "C" shaped pre-cut, a "U" shaped pre-cut and "V" shaped pre-cut are incorporated into the package for later insertion of the straw.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.