Closure having rotatable spout and axially movable stem
US6702161B2 · kind B2 · utility
31Cited by
37References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 6, 2002 |
| Grant date | Mar 9, 2004 |
| Priority date | — |
| Expiry date | Dec 6, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D2251/0093
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A closure for a container having a foil or membrane sealed opening. The closure includes a cap, a spout and a stem. The stem includes a downwardly extending piercing structure adapted for piercing the foil or membrane of the container upon rotation of the spout relative to the cap.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.