Pouring member having self sealing venting closure
US5454489A · kind A · utility
16Cited by
23References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 13, 1995 |
| Grant date | Oct 3, 1995 |
| Priority date | — |
| Expiry date | Jan 13, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D2215/02
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A self-sealing closure device for a container comprising an insert (1) adapted to be secured within a container neck (2) and comprising a pouring opening as well as a cap (11) adapted to be fastened on the container neck (2). The insert (1) comprises an inwardly extending resilient conically shaped sealing device (8), which at its inner end is provided with an upwardly facing sealing face (10) adapted to sealingly co-operate with a downwardly facing sealing face (18) on the cap (11). The sealing engagement of the two sealing faces (10, 18) being released at a predetermined internal overpressure in the container.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.