Slug-retaining die
US4516450A · kind A · utility
17Cited by
10References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 7, 1983 |
| Grant date | May 14, 1985 |
| Priority date | — |
| Expiry date | Mar 7, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/9437
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The die of a punch press is provided with at least one inwardly-extending protrusion elongated in the direction of travel of the punch and positioned to encounter and grip the edge of a punched slug of workpiece material during the punching step and to restrain the slug from following the punch during the retraction step of the punch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.