Knockout for use while necking a metal container, die system for necking a metal container and method of necking a metal container
US9327338B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2012 |
| Grant date | May 3, 2016 |
| Priority date | — |
| Expiry date | Feb 11, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21D51/2638
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A knockout has a support surface and the support surface has: (i) a first knockout outer diameter capable of supporting the first inner diameter of a container side wall when the knockout is inserted into an opening of the metal container and when the metal container is being necked with a necking die; and (ii) a second knockout outer diameter capable of supporting the second inner diameter of the container side wall when the knockout is inserted into the opening of the metal container and when the metal container is being necked with the necking die, and wherein the first knockout outer diameter is larger than the second knockout outer diameter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.