Cover for dispensing closure with pressure actuated valve
US6910607B2 · kind B2 · utility
19Cited by
28References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2002 |
| Grant date | Jun 28, 2005 |
| Priority date | — |
| Expiry date | Jul 16, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D47/2031
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A cover for a valved dispensing closure prevents the valve from opening while the cover is disposed on closure. The cover's central projection prevents flaps formed in the valve from opening, and the cover's outer projection prevents the flexible valve head from moving or inverting. The cover may also have projections that project inwardly from its skirt. The cover projections interact with mating projections formed on an exterior of the closure, and a lower end of the skirt may be disposed into an annular groove in the closure, to enhance a seal between the closure and the cover.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.