Tamper-evident closure
US12006110B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 17, 2021 |
| Grant date | Jun 11, 2024 |
| Priority date | — |
| Expiry date | Dec 17, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D2401/20
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A tamper-evident closure containing an outer cap with a sidewall and a top wall having a tamper-evident member connected by a frangible structure; an inner cap with a sidewall and a top wall, coaxially nested in the outer cap; a protruding element between the top walls; a first engagement mechanism for driving the outer cap and the inner cap upon application of a rotational torque in a screwing direction; a second engagement mechanism for driving the outer cap and the inner cap upon application of a rotational torque in an unscrewing direction; and a third engagement mechanism for breaking the frangible structure upon rotational movement of the outer and inner caps.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.