Container with curled tamper-evident band to retain closure
USRE36729E · kind E · reissue
Assignee
Inventors
Key dates
| Filing date | Sep 17, 1996 |
| Grant date | Jun 13, 2000 |
| Priority date | — |
| Expiry date | Sep 17, 2016 |
Classification
- Technology area (CPC —)General
Abstract
A thin-walled, wide mouth molded plastic container is provided with a tamper evident band initially molded as a straight-walled cylinder spaced outwardly of the lip of the container and connected thereto by a frangible horizontal bridge. The upper edge of the cylindrical band extends above the level of the container lip. Subsequent to molding and preferably before capping, the band is curled inward by application of a curling tool. The container lid is axially applied, the outer edge of the lid displacing the curled band outward. The resilience of the band and bridge permits outward deflection and immediate restoration of the curl to its initial position. The curl prevents removal of the lid without fracture of the bridge and removal of the tamper-evident band.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.