Container closure with a plastic liner having projections extending into depressions in the plastic shell
US5673809A · kind A · utility
42Cited by
13References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 17, 1995 |
| Grant date | Oct 7, 1997 |
| Priority date | — |
| Expiry date | Feb 17, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D41/045
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A container closure includes a plastic shell, and a liner molded by fluidizing a plastic material within the shell. Depressions are formed at circumferentially spaced positions at an upper end portion of the inner peripheral surface of the skirt wall. The depressions each have a circumferential length increased radially outwardly at least in part thereof. A plurality of projections are formed on the outer peripheral surface of the liner in correspondence with the depressions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.