Pressurization type cap assembly having storage chamber for secondary material
US8413802B2 · kind B2 · utility
5Cited by
14References
6Claims
0Family size
Inventors
Key dates
| Filing date | Dec 13, 2006 |
| Grant date | Apr 9, 2013 |
| Priority date | — |
| Expiry date | Dec 13, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D81/3222
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a cap assembly mounted on a discharging portion of a container for containing an ingredient different from that in accommodated in a container, which comprise a cap body having a housing formed with a chamber for storage of a secondary ingredient, a closing element provided at a lower end opening of the housing for opening the lower end opening under pressure so as to open the lower end opening.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.