Hot fill dispensing closure
US5772076A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 26, 1996 |
| Grant date | Jun 30, 1998 |
| Priority date | — |
| Expiry date | Jul 26, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D47/242
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A dispensing closure which is particularly suited for hot fill packaging wherein vacuum conditions are present as well as the packaging of carbonated beverages wherein superatmospheric conditions are present. The dispensing closure includes a rotatable outercap that overlies, and is relatively moveable with respect to, an inner cap secured to a container mouth. The inner and/or outer cap can be integrally formed with a resilient thermoplastic gasket liner system that provides vacuum seals both between the inner or outer caps and container as well as between the inner and outer caps. The closure can be equipped with a tamper indicating band, preferably located at the base of the outer cap, which will separate from the outer cap when it is rotated and axially moved upwardly from the closed to the dispensing position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.