Complex pressing die apparatus
US4779443A · kind A · utility
24Cited by
5References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 2, 1987 |
| Grant date | Oct 25, 1988 |
| Priority date | — |
| Expiry date | Jul 2, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21D37/08
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A complex pressing die apparatus having a plurality of upper and lower dies which are actuated by respective hydraulic cylinder devices which are located in a coaxial arrangement, respectively, in accordance with a predetermined sequence.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.