Two-step molding of liner components for a closure
US6306330A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 23, 1999 |
| Grant date | Oct 23, 2001 |
| Priority date | — |
| Expiry date | Jul 23, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/565
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A simulated promotional pocket for a closure and method for manufacture thereof has a cup-shaped simulated promotional pocket molded within the closure to at least partially encapsulate anchor tabs extending from a liner pre-molded to an inside of the top wall of the closure. The anchor tabs are arranged in a target formation of concentric spaced-apart circles and are bent over outwardly during pressure molding of the cup-shaped promotional pocket to provide resistance to separation of the promotional pocket and the liner. The simulated promotional pocket having an open end is configured to be identical in appearance to an actual promotional compartment which holds a promotional item of value thereon, when viewed from outside a container closed by the closure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.