Two-stage container base
US10059482B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 20, 2015 |
| Grant date | Aug 28, 2018 |
| Priority date | — |
| Expiry date | Aug 20, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB67C2003/226
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A blow-molded container including a finish and a base. The finish defines an opening at a first end of the container that provides access to an internal volume. The base includes a diaphragm and a standing surface. The diaphragm extends radially outward from a central push-up portion. The standing surface of the container is at a second end of the container. In response to an internal vacuum caused by hot-filling and closing the container, the diaphragm is configured to move passively from an as-blown first configuration to a second configuration in which the diaphragm is closer to the first end of the container as compared to the as-blown first configuration. The diaphragm is configured to move from the second configuration to an activated third configuration in which the diaphragm is closer to the first end of the container in response to the diaphragm being externally actuated by a tool.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.