Steel rule die and method
US5140872A · kind A · utility
37Cited by
17References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 25, 1988 |
| Grant date | Aug 25, 1992 |
| Priority date | — |
| Expiry date | May 25, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/0414
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A steel rule die set and method for cutting and scoring sheet material in which the male cutting and scoring die has a steel rule with knife and scoring edges secured firmly in a metal face plate having retaining laser cut openings and a complementary female counter plate having a metal plate with laser cut score lines in juxtaposition to the steel rule score edges.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.