Pressure venting closure cap for a container spout
US4664288A · kind A · utility
21Cited by
2References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 28, 1986 |
| Grant date | May 12, 1987 |
| Priority date | — |
| Expiry date | Apr 28, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D51/1661
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A manually openable closure system for a container spout. The closure is provided with a pull tab extending below the closure and adjacent the spout surface. The closure is removable from the spout without the use of any auxiliary cutting or other tools. The closure is resilient and is provided with a top portion for sealing the spout orifice and for venting the interior of the container by being deformed by an excessive internal pressure to uncover the orifice thereby venting the interior of the container via the space between the cap and the spout.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.