Press-on/pry-off composite closure with removal-assist and method of making same
US6375023B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2000 |
| Grant date | Apr 23, 2002 |
| Priority date | — |
| Expiry date | Mar 30, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D2543/00842
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A press-on/pry-off closure includes a separately formed circular end panel, preferably composed of metal, and a surrounding rim composed of a flexible plastic, preferably a thermoplastic polyolefin. The end panel is top-side inserted into the rim and secured between a radially inwardly extending ledge on an interior sidewall of a skirt portion of the rim and a plurality of radially inwardly extending panel-retaining formations adjacent an upper edge of the rim. The skirt includes a removal-assist portion which, in the illustrated embodiment, is in the form a hinged tab integrally formed with the rim. The tab is outwardly pivotable about the hinge axis for applying a lifting force to the rim to facilitate removal of the closure from a container.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.