Method and apparatus for press-cutting various patterns
US4782998A · kind A · utility
2Cited by
3References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 17, 1986 |
| Grant date | Nov 8, 1988 |
| Priority date | — |
| Expiry date | Jun 17, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/944
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for press-cutting selected patterns in a workpiece. The apparatus includes a plurality of dies and at least one punch element associated with each die. A plurality of backing plates are provided to drive the punch elements against the workpiece when the backing plates are positioned in the operative position. A press-cutting pattern selector selectively positions the backing plates in the operative position or an inoperative position depending upon the pattern to be press-cut.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.