Container closure
US7306127B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 18, 2004 |
| Grant date | Dec 11, 2007 |
| Priority date | — |
| Expiry date | Nov 30, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7883
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A one-piece container closure with a collar, leaflets hingedly attached to the collar, and thin flexible foldable webs attached to and extending between the leaflets. The leaflets are flat with the webs folded beneath in closed closure position. The leaflets are pivoted upwardly with webs unfolded therebetween in open position. An integral cap is attached to the collar by a snap-action bow-tie hinge. A central pin on the cap seals with the leaflets when the cap is closed. The closure is integrally molded in open position with raised leaflets and unfolded webs, leaflets then being lowered and the webs folded to closed position while the closure is still warm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.