Tamper-resistant cap for a container
US5788107A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 29, 1996 |
| Grant date | Aug 4, 1998 |
| Priority date | — |
| Expiry date | Mar 29, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S220/915
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A cap is provided for mounting on a necked-in can. The cap includes a shell formed to include an interior region and a tool-receiving aperture opening into the interior region. A ridge is appended to the shell and positioned to lie in the interior region of the cap. The ridge includes a downwardly facing ridge edge that lies inside the interior region of the cap and adjacent to the tool-receiving aperture. The ridge edge overlies a portion of an annular lip of the necked-in can when the cap is mounted on the can so that a cap-removal tool can be inserted into the interior region of the shell through the tool-receiving aperture simultaneously to engage the annular lip of the can and the ridge edge. When the cap-removal tool is rotated manually about its longitudinal axis, the cap-removal tool acts between the ridge edge and the annular lip to demount the cap from the necked-in can.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.