Tamper-evident closures and container neck therefor
US5975320A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 9, 1997 |
| Grant date | Nov 2, 1999 |
| Priority date | — |
| Expiry date | May 9, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D2577/205
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A tamper-evident closure and container neck. The closure has a top and a skirt depending from the top having at least one engagement member on the interior of the skirt which cooperates with at least one engagement member on the neck to retain the closure on the container neck. The closure includes a tab to facilitate removal of the closure from the container neck. The tab includes a longitudinal axis and wall portions extending outwardly from the axis and terminating in a plane spaced from the longitudinal axis for reinforcing the tab. Frangible sections prevent removal of the cap from the neck so long as the frangible sections are intact.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.