Bottom expansion station
US10112228B2 · kind B2 · utility
0Cited by
3References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 9, 2016 |
| Grant date | Oct 30, 2018 |
| Priority date | — |
| Expiry date | Dec 23, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21D24/04
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A bottom expansion station is provided. The station provides a blank support, a punch having a central recess configured to punch a blank through the blank support forming a cup, and a pressure exertion medium including a material through which pressure is exerted on a portion the end wall of the cup to increase the area of the end wall. The material is configured to be deformed by the end wall when pressure is exerted through it on the portion of the end wall.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.