Low height floating disk closure
US5031787A · kind A · utility
31Cited by
17References
24Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 8, 1990 |
| Grant date | Jul 16, 1991 |
| Priority date | — |
| Expiry date | Jun 8, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D51/1661
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A closure having an axially movable insert disk which is lifted by a bead around the inside of the closure shell to open a sealed container. When the closure is in sealing position on the container, the lifting bead lies below the top of external threading on the container, and at the top of cooperating internal threading of the closure skirt. The bead has an inside diameter greater than that of the closure threading, and can move upwardly past the external threading on the container. The overall heights of the closure and the container finish can thereby be reduced and less material used.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.