Can manufacture
US9545655B2 · kind B2 · utility
3Cited by
47References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 4, 2011 |
| Grant date | Jan 17, 2017 |
| Priority date | — |
| Expiry date | Dec 13, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21D22/28
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method and apparatus are disclosed which are suitable for use in the manufacture of two-piece metal containers. In particular, the method and apparatus disclose a way of making cups from metal sheet using a combination of stretching and (re-)drawing operations. The resulting cups have the advantage of reducing the thickness of the base of the cup relative to the ingoing gauge of material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.