Tamper-evident closure, container with such closure and its use
US11498731B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 22, 2017 |
| Grant date | Nov 15, 2022 |
| Priority date | — |
| Expiry date | Jan 27, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D2401/15
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A tamper-evident closure for a container with an outer screw thread opening, including an outer cap with a first sidewall and a first top wall and an inner cap with a second sidewall and a second top wall. The inner cap is coaxially nested within the outer cap and has an inner thread. The outer and inner cap have cooperating engagement mechanisms arranged and shaped so when opening the closure for the first time, the inner cap is rotated by the outer cap. The first top wall has a tamper-evident member which is connected to a surrounding region of the first top wall by a frangible component. A protruding element, arranged for breaking the frangible component, is arranged at the first top wall facing the second top wall and/or the second top wall facing the first top wall so as to face the tamper-evident member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.