Closure cap with metallic innerseal and sealed package
US4378892A · kind A · utility
12Cited by
3References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 27, 1981 |
| Grant date | Apr 5, 1983 |
| Priority date | — |
| Expiry date | Apr 27, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2200/062
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A molded plastic closure is described for particular use on packages employing a metallic innerseal and where the package is sealed using induction heating for softening a heat sensitive adhesive on the under surface of the innerseal while pressure is applied to the cap top. The closure cap is formed of a deformable plastic with a relatively thin shell permitting the induction coils to be positioned close to the metallic innerseal and to permit portions of the closure cap to be wrapped closely around portions of the container finish during the induction sealing process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.