Closure cap having tamper indicating means
US5035341A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 31, 1990 |
| Grant date | Jul 30, 1991 |
| Priority date | — |
| Expiry date | Oct 31, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D79/0087
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
This relates to a mechanically actuated closure cap which is provided with a tamper indicating feature. The closure cap includes an end panel having a centrally located button that is normally in a button down position, but when the closure cap is applied to a container, it is mechanically actuated to a button up position. A translucent panel is fixedly applied to the closure cap in overlying relation to the end panel and there is positioned between the button and the translucent panel several possibilities of devices for indicating that the closure cap has been applied to a container and either is in its original position relative to the container or has been removed therefrom. In each instance indicia is involved with the indicia either indicating that the container has not been opened with this indicia disappearing when the container is opened, or the indicia indicating that the container has been opened and the indicia not appearing until the closure cap has been applied to the container and then removed therefrom. In each instance, either the removal of the indicia or the appearance of the indicia is not reversible.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.