Domed liner disc for closure
US6761275B1 · kind B1 · utility
9Cited by
7References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 14, 2000 |
| Grant date | Jul 13, 2004 |
| Priority date | — |
| Expiry date | Nov 25, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D53/04
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A liner disc for a bottle cap for sealingly closing a bottle includes an annular rim portion and a downwardly domed portion depending from the annular rim portion. The domed portion is convex toward the contents of the bottle. A seal layer is provided on the domed portion. Internal pressure of the contents of the bottle acts in a direction tending to flatten the domed portion which in turn expands an annular side wall of the domed portion outwardly to press the seal layer against the inside surface of the bottle to assist in effecting a seal between the bottle and the cap.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.