Container closure system with warranty element
US6439411B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 11, 2000 |
| Grant date | Aug 27, 2002 |
| Priority date | — |
| Expiry date | Aug 11, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D2401/50
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A container closure system comprises a container having an opening zone (21) with a threaded neck (22). A closure cap (23) can be screwed on the threaded neck (22). A warranty element comprises an annular base body (25) with engagement means which can engage matching engagement means (38) in the opening zone (21) of the container. The warranty element also comprises one or more indicator elements (27) shaped as circle segments and linked each by a predetermined breaking strip to the base body (25). The closure cap (23) has at least one axial projection (34) which can be inserted between the ends of the indicator elements (27) shaped as circle segments or between the ends of two adjacent indicator elements (27) in order to secure the indicator elements (27) against rotation to the closure cap (23). When the closure cap (23) is unscrewed, these axial projections (34) break the predetermined breaking strips, separating the indicator elements (27) shaped as circle segments from the base body (25). This indicates that the container has been opened for the first time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.