Pilfer-proof synthetic resin cap
US5289931A · kind A · utility
2Cited by
6References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 26, 1993 |
| Grant date | Mar 1, 1994 |
| Priority date | — |
| Expiry date | Jul 26, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D41/3423
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A cap has a circumferential band with flap pieces formed at the lower end of a cylindrical skirt portion via a weakened portion, and a feature resides in a circumferential curled portion that is formed at the lower end of the circumferential band. When the cap is opened, the flap pieces effectively prevents the circumferential band from entirely escaping.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.