Tamper evident cap and container
US5720402A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 7, 1995 |
| Grant date | Feb 24, 1998 |
| Priority date | — |
| Expiry date | Jun 7, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D41/3409
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A cap and container combination wherein the cap fits about the container in at least two closure positions. Two circumferential bands are provided around the skirt of the cap and there is an internal thread which engages an external thread about the container neck. In the first position, one band of the cap engages a circumferential slot about the container. The internal thread seals with the top of the container. The first band is removed and the container opened by removing the cap. In the second position, the second band engages the slot and the threads engage each other. In the second position, the second band is located about the container. It remains in position when and after the cap is removed. Tampering of the container and cap can be visually detected with this configuration. A bead about the container is formed of a reduced cross-section in portions circumferentially around the cap. This facilitates assembly and disassembly of cap and container.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.