Container closure apparatus
US6244503A · kind A · utility
2Cited by
11References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 29, 1999 |
| Grant date | Jun 12, 2001 |
| Priority date | — |
| Expiry date | Nov 29, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D5/748
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
The present invention is a package closure apparatus. The landing extends from a base of the closure apparatus into an opening of the closure apparatus. The spring face adjoins the landing at a first junction forming a first flexible joint. The push-tab adjoins the spring face at a second junction forming a second flexible joint. The first flexible joint, the spring face, and the second flexible joint cooperate to enable the push-tab to move relative to the base of the apparatus. The air vent is adapted to facilitate a substantially even flow rate of a product through the opening of the closure apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.